Update version to 4.5.1 for release

Use the map to check for indices instead of getting the object

Addresses #850

.github/CONTRIBUTING.md

@@ -0,0 +1,38 @@
+Contributing to ProtocolLib
+===========================
+This page will detail specific things that must be done if you intend to contribute to this project.
+
+## Updating ProtocolLib to a New Protocol Version
+#### Before we get started:
+1. **When do we need to update the protocol version?**
+    _A Minecraft protocol version is a number for each specification of the Minecraft protocol.
+    This means it is incremented when there is a change to the [Protocol Specification](http://wiki.vg/Protocol),
+    but not necessarily for each Minecraft version update. If the latest Minecraft version contains a protocol change,
+    that means ProtocolLib needs to be updated._
+2. **When do we need to update other parts of ProtocolLib?**
+    _When the package version guard changes. The package version guard is the version string inserted
+    into the package identifier for CraftBukkit and net.minecraft.server (e.g. v1_9_R2). It is incremented
+    by Spigot if there is a major breaking change in the internal server code. This is to encourage plugins
+    that interact directly with CraftBukkit/nms code to update more specifically. However, since most of
+    ProtocolLib uses reflection, and the structure of packet classes is generally static, one will have
+    to go through the code and change imports from nms/CraftBukkit._
+
+#### Ready? Let's get started!
+1. Read the [Protocol Changes](http://wiki.vg/Protocol_History). Always make sure the list is both
+complete and correct. If you're unsure, don't hesitate to ask in #mcdevs (the people who maintain wiki.vg) on [freenode.net](http://freenode.net)
+or #spigot on [irc.spi.gt](http://irc.spi.gt) ([webchat](https://irc.spi.gt/iris/?channels=spigot)).
+2. Search for usages of the now-defunct NMS package guard and change them.
+3. The class `com.comphenix.protocol.PacketType` contains a list of all the packets. If any packets were added or removed
+(or had their ID changed), make sure to update this list. If a packet was removed
+in favor of usage of another packet, instead of removing it, move it to the bottom of the list
+in its section, add a deprecation warning to it, and redirect it to the packet that replaced it.
+4. `mvn` in the root directory to build the project.
+5. If tests fail in the maven build, go through the tests to make sure you removed references to any removed packets
+and changed the NMS version guards.
+6. Increment the package version in `com.comphenix.protocol.utility.Constants`.
+7. `com.comphenix.protocol.ProtocolLibrary` contains several constants that must be updated, including the Minecraft version
+and the release date.
+8. `com.comphenix.protocol.utility.MinecraftProtocolVersion` contains a map of all the protocol version integers.
+If the protocol version has been incremented, add a new line to the map.
+9. `mvn` in root directory again. If it builds successfully, test on the appropriate version of a Spigot server. If
+the build fails, debug!

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,11 @@
+_Follow this template except for feature requests. Use pastebin when providing /protocol dump and any relevant errors._
+
+Make sure you've done the following:
+- [ ] You're using the latest build for your server version
+- [ ] This isn't an issue caused by another plugin
+- [ ] You've checked for duplicate issues
+- [ ] You didn't use `/reload`
+
+Debug paste link:
+
+Description and relevant errors:

.github/ISSUE_TEMPLATE/api-question.md

@@ -0,0 +1,29 @@
+---
+name: API question
+about: Questions related to using ProtocolLib in your plugins
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Make sure you're doing the following**
+- [ ] You're using the latest build for your server version
+- [ ] This isn't an issue caused by another plugin
+- [ ] You've checked for duplicate issues
+- [ ] You didn't use `/reload`
+
+**Describe the question**
+A clear and concise description of what your question is.
+
+**API method(s) used**
+List what API method(s) you're using
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Code**
+If applicable, add relevant code from your project
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,30 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Go to '...'
+2. Click on '....'
+3. Scroll down to '....'
+4. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Version Info**
+Provide your ProtocolLib install info with `/protocol dump` through pastebin.
+
+**Additional context**
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: Feature request
+about: Suggest an idea for this project
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Is your feature request related to a problem? Please describe.**
+A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Describe alternatives you've considered**
+A clear and concise description of any alternative solutions or features you've considered.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.

.gitignore

@@ -0,0 +1,182 @@
+#################
+## Eclipse
+#################
+
+# Generic project files
+.project
+.classpath
+.settings/
+bin/
+.idea/
+*.iml
+.ipr
+.iws
+
+*.pydevproject
+.metadata
+tmp/
+*.tmp
+*.bak
+*.swp
+*~.nib
+local.properties
+.loadpath
+
+# External tool builders
+.externalToolBuilders/
+
+# Locally stored "Eclipse launch configurations"
+*.launch
+
+# CDT-specific
+.cproject
+
+# PDT-specific
+.buildpath
+
+#################
+## Maven
+#################
+
+target/
+dependency-reduced-pom.xml
+
+#################
+## Visual Studio
+#################
+
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# User-specific files
+*.suo
+*.user
+*.sln.docstates
+
+# Build results
+[Dd]ebug/
+[Rr]elease/
+*_i.c
+*_p.c
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.vspscc
+.builds
+*.dotCover
+
+## TODO: If you have NuGet Package Restore enabled, uncomment this
+#packages/
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opensdf
+*.sdf
+
+# Visual Studio profiler
+*.psess
+*.vsp
+
+# ReSharper is a .NET coding add-in
+_ReSharper*
+
+# Installshield output folder
+[Ee]xpress
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish
+
+# Others
+[Bb]in
+[Oo]bj
+sql
+TestResults
+*.Cache
+ClientBin
+stylecop.*
+~$*
+*.dbmdl
+Generated_Code #added for RIA/Silverlight projects
+
+# Backup & report files from converting an old project file to a newer
+# Visual Studio version. Backup files are not needed, because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+
+
+
+############
+## Windows
+############
+
+# Windows image file caches
+Thumbs.db
+
+# Folder config file
+Desktop.ini
+
+
+#############
+## Python
+#############
+
+*.py[co]
+
+# Packages
+*.egg
+*.egg-info
+dist
+build
+eggs
+parts
+bin
+var
+sdist
+develop-eggs
+.installed.cfg
+
+# Installer logs
+pip-log.txt
+
+# Unit test / coverage reports
+.coverage
+.tox
+
+# Translations
+*.mo
+
+# Mr Developer
+.mr.developer.cfg
+
+# Mac crap
+.DS_Store
+
+# Log4J files
+logs/
+
+.gradle/
+build/
+logs/

.travis.yml

@@ -0,0 +1,11 @@
+language: java
+jdk:
+  - openjdk8
+script: mvn clean test
+install: true
+notifications:
+  email:
+    recipients:
+      - "dmulloy2@live.com"
+    on_success: change
+    on_failure: always

ItemDisguise/.classpath

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7"/>
-	<classpathentry kind="lib" path="D:/Games/Minecraft/Server Mods/API/bukkit-1.3.1-R2.0.jar"/>
-	<classpathentry kind="lib" path="/ProtocolLib/bin/ProtocolLib.jar"/>
-	<classpathentry kind="output" path="class"/>
-</classpath>

ItemDisguise/.project

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>ItemDisguise</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-	</natures>
-</projectDescription>

ItemDisguise/.settings/org.eclipse.jdt.core.prefs

@@ -1,11 +0,0 @@
-eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
-org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.7
-org.eclipse.jdt.core.compiler.debug.lineNumber=generate
-org.eclipse.jdt.core.compiler.debug.localVariable=generate
-org.eclipse.jdt.core.compiler.debug.sourceFile=generate
-org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
-org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.7

ItemDisguise/src/com/comphenix/itemdisguise/HideEnchantmentsListener.java

@@ -1,119 +0,0 @@
-/*
- *  ItemDisguise - A simple Bukkit plugin that illustrates how to use ProtocolLib.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.itemdisguise;
-
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import org.bukkit.Server;
-import org.bukkit.enchantments.Enchantment;
-import org.bukkit.inventory.ItemStack;
-import org.bukkit.plugin.java.JavaPlugin;
-
-import com.comphenix.protocol.ProtocolManager;
-import com.comphenix.protocol.events.ConnectionSide;
-import com.comphenix.protocol.events.PacketAdapter;
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.reflect.FieldAccessException;
-
-public class HideEnchantmentsListener {
-
-	private final Server server;
-	private final Logger logger;
-	
-	public HideEnchantmentsListener(Server server, Logger logger) {
-		this.server = server;
-		this.logger = logger;
-	}
-	
-	public void addListener(ProtocolManager protocolManager, JavaPlugin plugin) {
-
-		// Hide all enchantments
-		protocolManager.addPacketListener(new PacketAdapter(plugin, ConnectionSide.SERVER_SIDE, 0x67, 0x68, 0x3E) {
-			@Override
-			public void onPacketSending(PacketEvent event) {
-				PacketContainer packet = event.getPacket();
-				
-				try {
-					// Item packets
-					switch (event.getPacketID()) {
-					case 0x67: // Set slot
-						removeEnchantments(packet.getItemModifier().read(0));
-						break;
-						
-					case 0x68: // Set Window Items
-						ItemStack[] elements = packet.getItemArrayModifier().read(0);
-	
-						for (int i = 0; i < elements.length; i++) {
-							if (elements[i] != null) {
-								removeEnchantments(elements[i]);
-							}
-						}
-						break;
-						
-					case 0x3E: // Sound effect
-						event.setCancelled(true);
-						break;
-					}
-				
-				} catch (FieldAccessException e) {
-					logger.log(Level.SEVERE, "Couldn't access field.", e);
-				}
-			}
-		});
-		
-		// Censor
-		protocolManager.addPacketListener(new PacketAdapter(plugin, ConnectionSide.CLIENT_SIDE, 0x3) {
-			@Override
-			public void onPacketReceiving(PacketEvent event) {
-				if (event.getPacketID() == 0x3) {
-					try {
-						String message = event.getPacket().
-											getSpecificModifier(String.class).read(0);
-						
-						if (message.contains("shit") || message.contains("fuck")) {
-							event.setCancelled(true);
-							event.getPlayer().sendMessage("Bad manners!");
-						}
-						
-					} catch (FieldAccessException e) {
-						logger.log(Level.SEVERE, "Couldn't access field.", e);
-					}
-				}
-			}
-		});
-	}
-	
-	public Server getServer() {
-		return server;
-	}
-	
-	public void removeListener(ProtocolManager protocolManager, JavaPlugin plugin) {
-		// Just remove every adapter with this plugin
-		protocolManager.removePacketListeners(plugin);
-	}
-	
-	private void removeEnchantments(ItemStack stack) {
-		Object[] copy = stack.getEnchantments().keySet().toArray();
-		
-		for (Object enchantment : copy) {
-			stack.removeEnchantment((Enchantment) enchantment);
-		}
-	}
-}

ItemDisguise/src/com/comphenix/itemdisguise/ItemDisguiseMod.java

@@ -1,99 +0,0 @@
-/*
- *  ItemDisguise - A simple Bukkit plugin that illustrates how to use ProtocolLib.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.itemdisguise;
-
-import java.util.logging.Logger;
-
-import org.bukkit.command.Command;
-import org.bukkit.command.CommandSender;
-import org.bukkit.entity.Player;
-import org.bukkit.plugin.java.JavaPlugin;
-
-import com.comphenix.protocol.ProtocolLibrary;
-import com.comphenix.protocol.ProtocolManager;
-import com.comphenix.protocol.events.PacketContainer;
-
-public class ItemDisguiseMod extends JavaPlugin {
-	
-	private ProtocolManager protocolManager;
-	private Logger logger;
-	
-	private HideEnchantmentsListener enchantmentsListener;
-	
-	@Override
-	public void onEnable() {
-
-		logger = getLoggerSafely();
-		protocolManager = ProtocolLibrary.getProtocolManager();
-		
-		enchantmentsListener = new HideEnchantmentsListener(getServer(), logger);
-		enchantmentsListener.addListener(protocolManager, this);
-	}
-
-	@Override
-	public void onDisable() {
-		enchantmentsListener.removeListener(protocolManager, this);
-	}
-	
-	@Override
-	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
-		if (sender instanceof Player) {
-		
-			Player player = (Player) sender;
-			
-			if (label.equalsIgnoreCase("explosion")) {
-				PacketContainer fakeExplosion = protocolManager.createPacket(0x3C);
-				
-				// Set the coordinates
-				try {
-					fakeExplosion.getSpecificModifier(double.class).
-					    write(0, player.getLocation().getX()).
-					    write(1, player.getLocation().getY()).
-					    write(2, player.getLocation().getZ());
-					fakeExplosion.getSpecificModifier(float.class).
-						write(0, 3.0F);
-
-					protocolManager.sendServerPacket(player, fakeExplosion);
-					
-				} catch (Exception e) {
-					e.printStackTrace();
-				}
-			}
-			
-			return true;
-		}
-		
-		return false;
-	}
-	
-	// Get the Bukkit logger first, before we try to create our own
-	private Logger getLoggerSafely() {
-		
-		Logger log = null;
-	
-		try {
-			log = getLogger();
-		} catch (Throwable e) {
-			// We'll handle it
-		}
-		
-		if (log == null)
-			log = Logger.getLogger("Minecraft");
-		return log;
-	}
-}

ItemDisguise/src/plugin.yml

@@ -1,14 +0,0 @@
-name: ItemDisguiseMod
-version: 1.0.0
-description: Change the appearance of inventory items.
-author: Comphenix
-website: http://www.comphenix.net/ItemDisguise
-
-main: com.comphenix.itemdisguise.ItemDisguiseMod
-depends: [ProtocolLib]
-database: false
-
-commands:
-   explosion:
-      description: Creates a fake explosion around the caller.
-      usage: /<command>

License.txt

@@ -0,0 +1,339 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
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+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
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+gratis or for a fee, you must give the recipients all the rights that
+you have.  You must make sure that they, too, receive or can get the
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+rights.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
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+
+  Finally, any free program is threatened constantly by software
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+patent must be licensed for everyone's free use or not licensed at all.
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+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
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+the term "modification".)  Each licensee is addressed as "you".
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+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
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+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
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+  2. You may modify your copy or copies of the Program or any portion
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+
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+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
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+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
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+In addition, mere aggregation of another work not based on the Program
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+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, write to the Free Software Foundation, Inc.,
+    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

ProtocolLib/.classpath

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="src" output="class_test" path="test"/>
-	<classpathentry kind="lib" path="D:/Games/Minecraft/Server Mods/Server/craftbukkit-1.3.1-R2.0.jar"/>
-	<classpathentry kind="lib" path="lib/cglib-nodep-2.2.3.jar">
-		<attributes>
-			<attribute name="javadoc_location" value="jar:file:/D:/Kristian/Programmer/Binaries/cglib.2.2.3/cglib-docs-2.2.3.jar!/"/>
-		</attributes>
-	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/jre6"/>
-	<classpathentry kind="output" path="class"/>
-</classpath>

ProtocolLib/.project

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>ProtocolLib</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-	</natures>
-</projectDescription>

ProtocolLib/.settings/org.eclipse.jdt.core.prefs

@@ -1,11 +0,0 @@
-eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
-org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.6
-org.eclipse.jdt.core.compiler.debug.lineNumber=generate
-org.eclipse.jdt.core.compiler.debug.localVariable=generate
-org.eclipse.jdt.core.compiler.debug.sourceFile=generate
-org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
-org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.6

ProtocolLib/Java.xml

@@ -1,14 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<project default="compile" name="Project ItemDisguise" basedir=".">
-    <!--ANT 1.7 is required                                        -->
-    <target name="compile">
-        <jar destfile="bin/ProtocolLib.jar" filesetmanifest="mergewithoutmain" excludes="test/*">
-            <manifest>
-                <attribute name="Main-Class" value="com.comphenix.itemdisguise.Application"/>
-                <attribute name="Class-Path" value="."/>
-            </manifest>
-            <fileset dir="class"/>
-            <zipfileset excludes="META-INF/*.SF" src="lib/cglib-nodep-2.2.3.jar"/>
-        </jar>
-    </target>
-</project>

ProtocolLib/src/com/comphenix/protocol/AsynchronousManager.java

@@ -1,77 +0,0 @@
-package com.comphenix.protocol;
-
-import java.util.Set;
-import java.util.logging.Logger;
-
-import org.bukkit.plugin.Plugin;
-
-import com.comphenix.protocol.async.AsyncListenerHandler;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.events.PacketListener;
-
-/**
- * Represents a asynchronous packet handler.
- * 
- * @author Kristian
- */
-public interface AsynchronousManager {
-
-	/**
-	 * Registers an asynchronous packet handler.
-	 * <p>
-	 * To start listening asynchronously, pass the getListenerLoop() runnable to a different thread.
-	 * @param listener - the packet listener that will recieve these asynchronous events.
-	 * @return An asynchrouns handler.
-	 */
-	public abstract AsyncListenerHandler registerAsyncHandler(PacketListener listener);
-
-	/**
-	 * Unregisters and closes the given asynchronous handler.
-	 * @param handler - asynchronous handler.
-	 */
-	public abstract void unregisterAsyncHandler(AsyncListenerHandler handler);
-
-	/**
-	 * Unregisters every asynchronous handler associated with this plugin.
-	 * @param plugin - the original plugin.
-	 */
-	public void unregisterAsyncHandlers(Plugin plugin);
-	
-	/**
-	 * Retrieves a immutable set containing the ID of the sent server packets that will be 
-	 * observed by the asynchronous listeners.
-	 * @return Every filtered server packet.
-	 */
-	public abstract Set<Integer> getSendingFilters();
-
-	/**
-	 * Retrieves a immutable set containing the ID of the recieved client packets that will be
-	 * observed by the asynchronous listeners.
-	 * @return Every filtered client packet.
-	 */
-	public abstract Set<Integer> getReceivingFilters();
-
-	/**
-	 * Determine if a given synchronous packet has asynchronous listeners.
-	 * @param packet - packet to test.
-	 * @return TRUE if it does, FALSE otherwise.
-	 */
-	public abstract boolean hasAsynchronousListeners(PacketEvent packet);
-
-	/**
-	 * Retrieve the default packet stream.
-	 * @return Default packet stream.
-	 */
-	public abstract PacketStream getPacketStream();
-
-	/**
-	 * Retrieve the default error logger.
-	 * @return Default logger.
-	 */
-	public abstract Logger getLogger();
-
-	/**
-	 * Remove listeners, close threads and transmit every delayed packet.
-	 */
-	public abstract void cleanupAll();
-}

ProtocolLib/src/com/comphenix/protocol/PacketStream.java

@@ -1,55 +0,0 @@
-package com.comphenix.protocol;
-
-import java.lang.reflect.InvocationTargetException;
-
-import org.bukkit.entity.Player;
-
-import com.comphenix.protocol.events.PacketContainer;
-
-/**
- * Represents a object capable of sending or receiving packets.
- * 
- * @author Kristian
- */
-public interface PacketStream {
-	
-	/**
-	 * Send a packet to the given player.
-	 * @param reciever - the reciever.
-	 * @param packet - packet to send.
-	 * @throws InvocationTargetException - if an error occured when sending the packet.
-	 */
-	public void sendServerPacket(Player reciever, PacketContainer packet) 
-			throws InvocationTargetException;
-
-	/**
-	 * Send a packet to the given player.
-	 * @param reciever - the reciever.
-	 * @param packet - packet to send.
-	 * @param filters - whether or not to invoke any packet filters.
-	 * @throws InvocationTargetException - if an error occured when sending the packet.
-	 */
-	public void sendServerPacket(Player reciever, PacketContainer packet, boolean filters)
-			throws InvocationTargetException;
-
-	/**
-	 * Simulate recieving a certain packet from a given player.
-	 * @param sender - the sender.
-	 * @param packet - the packet that was sent.
-	 * @throws InvocationTargetException If the reflection machinery failed.
-	 * @throws IllegalAccessException If the underlying method caused an error.
-	 */
-	public void recieveClientPacket(Player sender, PacketContainer packet) 
-			throws IllegalAccessException, InvocationTargetException;
-
-	/**
-	 * Simulate recieving a certain packet from a given player.
-	 * @param sender - the sender.
-	 * @param packet - the packet that was sent.
-	 * @param filters - whether or not to invoke any packet filters.
-	 * @throws InvocationTargetException If the reflection machinery failed.
-	 * @throws IllegalAccessException If the underlying method caused an error.
-	 */
-	public void recieveClientPacket(Player sender, PacketContainer packet, boolean filters)
-			throws IllegalAccessException, InvocationTargetException;
-}

ProtocolLib/src/com/comphenix/protocol/ProtocolLibrary.java

@@ -1,180 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol;
-
-import java.io.IOException;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import org.bukkit.Server;
-import org.bukkit.plugin.PluginManager;
-import org.bukkit.plugin.java.JavaPlugin;
-
-import com.comphenix.protocol.async.AsyncFilterManager;
-import com.comphenix.protocol.injector.PacketFilterManager;
-import com.comphenix.protocol.metrics.Statistics;
-import com.comphenix.protocol.reflect.compiler.BackgroundCompiler;
-
-public class ProtocolLibrary extends JavaPlugin {
-	
-	// There should only be one protocol manager, so we'll make it static
-	private static PacketFilterManager protocolManager;
-	
-	// Error logger
-	private Logger logger;
-	
-	// Metrics and statistisc
-	private Statistics statistisc;
-	
-	// Structure compiler
-	private BackgroundCompiler backgroundCompiler;
-	
-	// Used to clean up server packets that have expired. 
-	// But mostly required to simulate recieving client packets.
-	private int asyncPacketTask = -1;
-	private int tickCounter = 0;
-	private static final int ASYNC_PACKET_DELAY = 1;
-	
-	@Override
-	public void onLoad() {
-		logger = getLoggerSafely();
-		protocolManager = new PacketFilterManager(getClassLoader(), getServer(), logger);
-	}
-	
-	@Override
-	public void onEnable() {
-		Server server = getServer();
-		PluginManager manager = server.getPluginManager();
-		
-		// Initialize background compiler
-		if (backgroundCompiler == null) {
-			backgroundCompiler = new BackgroundCompiler(getClassLoader());
-			BackgroundCompiler.setInstance(backgroundCompiler);
-		}
-
-		// Notify server managers of incompatible plugins
-		checkForIncompatibility(manager);
-		
-		// Player login and logout events
-		protocolManager.registerEvents(manager, this);
-		
-		// Inject our hook into already existing players
-		protocolManager.initializePlayers(server.getOnlinePlayers());
-		
-		// Timeout
-		createAsyncTask(server);
-		
-		// Try to enable statistics
-		try {
-			statistisc = new Statistics(this);
-		} catch (IOException e) {
-			logger.log(Level.SEVERE, "Unable to enable metrics.", e);
-		} catch (Throwable e) {
-			logger.log(Level.SEVERE, "Metrics cannot be enabled. Incompatible Bukkit version.", e);
-		}
-	}
-	
-	private void createAsyncTask(Server server) {
-		try {
-			if (asyncPacketTask >= 0)
-				throw new IllegalStateException("Async task has already been created");
-			
-			// Attempt to create task
-			asyncPacketTask = server.getScheduler().scheduleSyncRepeatingTask(this, new Runnable() {
-				@Override
-				public void run() {
-					AsyncFilterManager manager = (AsyncFilterManager) protocolManager.getAsynchronousManager();
-					
-					// We KNOW we're on the main thread at the moment
-					manager.sendProcessedPackets(tickCounter++, true);
-				}
-			}, ASYNC_PACKET_DELAY, ASYNC_PACKET_DELAY);
-		
-		} catch (Throwable e) {
-			if (asyncPacketTask == -1) {
-				logger.log(Level.SEVERE, "Unable to create packet timeout task.", e);
-			}
-		}
-	}
-	
-	private void checkForIncompatibility(PluginManager manager) {
-		// Plugin authors: Notify me to remove these
-		String[] incompatiblePlugins = {};
-		
-		for (String plugin : incompatiblePlugins) {
-			if (manager.getPlugin(plugin) != null) {
-				// Check for versions, ect.
-				logger.severe("Detected incompatible plugin: " + plugin);
-			}
-		}
-	}
-	
-	@Override
-	public void onDisable() {
-		// Disable compiler
-		if (backgroundCompiler != null) {
-			backgroundCompiler.shutdownAll();
-			backgroundCompiler = null;
-			BackgroundCompiler.setInstance(null);
-		}
-		
-		// Clean up
-		if (asyncPacketTask >= 0) {
-			getServer().getScheduler().cancelTask(asyncPacketTask);
-			asyncPacketTask = -1;
-		}
-		
-		protocolManager.close();
-		protocolManager = null;
-		statistisc = null;
-	}
-	
-	/**
-	 * Retrieves the packet protocol manager.
-	 * @return Packet protocol manager, or NULL if it has been disabled.
-	 */
-	public static ProtocolManager getProtocolManager() {
-		return protocolManager;
-	}
-	
-	/**
-	 * Retrieve the metrics instance used to measure users of this library.
-	 * <p>
-	 * Note that this method may return NULL when the server is reloading or shutting down.
-	 * @return Metrics instance container.
-	 */
-	public Statistics getStatistics() {
-		return statistisc;
-	}
-	
-	// Get the Bukkit logger first, before we try to create our own
-	private Logger getLoggerSafely() {
-		
-		Logger log = null;
-	
-		try {
-			log = getLogger();
-		} catch (Throwable e) {
-			// We'll handle it
-		}
-		
-		if (log == null)
-			log = Logger.getLogger("Minecraft");
-		return log;
-	}
-}

ProtocolLib/src/com/comphenix/protocol/ProtocolManager.java

@@ -1,131 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol;
-
-import java.util.List;
-import java.util.Set;
-
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.Player;
-import org.bukkit.plugin.Plugin;
-
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.injector.PacketConstructor;
-import com.comphenix.protocol.reflect.FieldAccessException;
-import com.google.common.collect.ImmutableSet;
-
-/**
- * Represents an API for accessing the Minecraft protocol.
- * @author Kristian
- */
-public interface ProtocolManager extends PacketStream {
-
-	/**
-	 * Retrieves a list of every registered packet listener.
-	 * @return Every registered packet listener.
-	 */
-	public ImmutableSet<PacketListener> getPacketListeners();
-
-	/**
-	 * Adds a packet listener. 
-	 * <p>
-	 * Adding an already registered listener has no effect. If you need to change the packets 
-	 * the current listener is observing, you must first remove the packet listener before you 
-	 * can register it again.
-	 * @param listener - new packet listener.
-	 */
-	public void addPacketListener(PacketListener listener);
-
-	/**
-	 * Removes a given packet listener. 
-	 * <p>
-	 * Attempting to remove a listener that doesn't exist has no effect.
-	 * @param listener - the packet listener to remove.
-	 */
-	public void removePacketListener(PacketListener listener);
-
-	/**
-	 * Removes every listener associated with the given plugin.
-	 * @param plugin - the plugin to unload.
-	 */
-	public void removePacketListeners(Plugin plugin);
-
-	/**
-	 * Constructs a new encapsulated Minecraft packet with the given ID.
-	 * @param id - packet ID.
-	 * @return New encapsulated Minecraft packet.
-	 */
-	public PacketContainer createPacket(int id);
-	
-	/**
-	 * Constructs a new encapsulated Minecraft packet with the given ID.
-	 * <p>
-	 * If set to true, the <i>forceDefaults</i> option will force the system to automatically 
-	 * give non-primitive fields in the packet sensible default values. For instance, certain
-	 * packets - like Packet60Explosion - require a List or Set to be non-null. If the
-	 * forceDefaults option is true, the List or Set will be automatically created.
-	 * 
-	 * @param id - packet ID.
-	 * @param forceDefaults - TRUE to use sensible defaults in most fields, FALSE otherwise.
-	 * @return New encapsulated Minecraft packet.
-	 */
-	public PacketContainer createPacket(int id, boolean forceDefaults);
-
-	/**
-	 * Construct a packet using the special builtin Minecraft constructors.
-	 * @param id - the packet ID.
-	 * @param arguments - arguments that will be passed to the constructor.
-	 * @return The packet constructor.
-	 */
-	public PacketConstructor createPacketConstructor(int id, Object... arguments);
-	
-	/**
-	 * Completely refresh all clients about an entity.
-	 * <p>
-	 * Note that this method is NOT thread safe. If you call this method from anything 
-	 * but the main thread, it will throw an exception.
-	 * @param entity - entity to refresh.
-	 * @param observers - the clients to update.
-	 */
-	public void updateEntity(Entity entity, List<Player> observers) throws FieldAccessException;
-	
-	/**
-	 * Retrieves a immutable set containing the ID of the sent server packets that will be observed by listeners.
-	 * @return Every filtered server packet.
-	 */
-	public Set<Integer> getSendingFilters();
-	
-	/**
-	 * Retrieves a immutable set containing the ID of the recieved client packets that will be observed by listeners.
-	 * @return Every filtered client packet.
-	 */
-	public Set<Integer> getReceivingFilters();
-	
-	/**
-	 * Determines whether or not this protocol mananger has been disabled. 
-	 * @return TRUE if it has, FALSE otherwise.
-	 */
-	public boolean isClosed();
-
-	/**
-	 * Retrieve the current asyncronous packet manager.
-	 * @return Asyncronous packet manager.
-	 */
-	public AsynchronousManager getAsynchronousManager();
-}

ProtocolLib/src/com/comphenix/protocol/async/AsyncFilterManager.java

@@ -1,305 +0,0 @@
-package com.comphenix.protocol.async;
-
-import java.util.Collection;
-import java.util.List;
-import java.util.Set;
-import java.util.concurrent.atomic.AtomicInteger;
-import java.util.logging.Logger;
-
-import org.bukkit.plugin.Plugin;
-import org.bukkit.scheduler.BukkitScheduler;
-
-import com.comphenix.protocol.AsynchronousManager;
-import com.comphenix.protocol.PacketStream;
-import com.comphenix.protocol.ProtocolManager;
-import com.comphenix.protocol.events.ListeningWhitelist;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.injector.PacketFilterManager;
-import com.comphenix.protocol.injector.PrioritizedListener;
-import com.google.common.base.Objects;
-
-/**
- * Represents a filter manager for asynchronous packets.
- * 
- * @author Kristian
- */
-public class AsyncFilterManager implements AsynchronousManager {
-
-	private PacketProcessingQueue serverProcessingQueue;
-	private PacketSendingQueue serverQueue;
-	
-	private PacketProcessingQueue clientProcessingQueue;
-	private PacketSendingQueue clientQueue;
-	
-	private Logger logger;
-	
-	// The likely main thread
-	private Thread mainThread;
-	
-	// Default scheduler
-	private BukkitScheduler scheduler;
-	
-	// Our protocol manager
-	private ProtocolManager manager;
-	
-	// Current packet index
-	private AtomicInteger currentSendingIndex = new AtomicInteger();
-	
-	// Whether or not we're currently cleaning up
-	private volatile boolean cleaningUp;
-	
-	public AsyncFilterManager(Logger logger, BukkitScheduler scheduler, ProtocolManager manager) {
-		
-		// Server packets are synchronized already
-		this.serverQueue = new PacketSendingQueue(false);
-		
-		// Client packets must be synchronized
-		this.clientQueue = new PacketSendingQueue(true); 
-		
-		this.serverProcessingQueue = new PacketProcessingQueue(serverQueue);
-		this.clientProcessingQueue = new PacketProcessingQueue(clientQueue);
-		
-		this.scheduler = scheduler;
-		this.manager = manager;
-		
-		this.logger = logger;
-		this.mainThread = Thread.currentThread();
-	}
-	
-	@Override
-	public AsyncListenerHandler registerAsyncHandler(PacketListener listener) {
-		return registerAsyncHandler(listener, true);
-	}
-	
-	/**
-	 * Registers an asynchronous packet handler.
-	 * <p>
-	 * To start listening asynchronously, pass the getListenerLoop() runnable to a different thread.
-	 * <p>
-	 * Asynchronous events will only be executed if a synchronous listener with the same packets is registered.
-	 * If you already have a synchronous event, call this method with autoInject set to FALSE.
-	 * 
-	 * @param listener - the packet listener that will recieve these asynchronous events.
-	 * @param autoInject - whether or not to automatically create the corresponding synchronous listener,
-	 * @return An asynchrouns handler.
-	 */
-	public AsyncListenerHandler registerAsyncHandler(PacketListener listener, boolean autoInject) {
-		AsyncListenerHandler handler = new AsyncListenerHandler(mainThread, this, listener);
-		
-		ListeningWhitelist sendingWhitelist = listener.getSendingWhitelist();
-		ListeningWhitelist receivingWhitelist = listener.getReceivingWhitelist();
-		
-		// Add listener to either or both processing queue
-		if (hasValidWhitelist(sendingWhitelist)) {
-			PacketFilterManager.verifyWhitelist(listener, sendingWhitelist);
-			serverProcessingQueue.addListener(handler, sendingWhitelist);
-		}
-		
-		if (hasValidWhitelist(receivingWhitelist)) {
-			PacketFilterManager.verifyWhitelist(listener, receivingWhitelist);
-			clientProcessingQueue.addListener(handler, receivingWhitelist);
-		}
-		
-		// We need a synchronized listener to get the ball rolling
-		if (autoInject) {
-			handler.setNullPacketListener(new NullPacketListener(listener));
-			manager.addPacketListener(handler.getNullPacketListener());
-		}
-		
-		return handler;
-	}
-	
-	private boolean hasValidWhitelist(ListeningWhitelist whitelist) {
-		return whitelist != null && whitelist.getWhitelist().size() > 0;
-	}
-	
-	@Override
-	public void unregisterAsyncHandler(AsyncListenerHandler handler) {
-		if (handler == null)
-			throw new IllegalArgumentException("listenerToken cannot be NULL");
-		
-		handler.cancel();	
-	}
-	
-	// Called by AsyncListenerHandler
-	void unregisterAsyncHandlerInternal(AsyncListenerHandler handler) {
-		
-		PacketListener listener = handler.getAsyncListener();
-		boolean synchronusOK = onMainThread();
-		
-		// Unregister null packet listeners
-		if (handler.getNullPacketListener() != null) {
-			manager.removePacketListener(handler.getNullPacketListener());
-		}
-		
-		// Just remove it from the queue(s)
-		if (hasValidWhitelist(listener.getSendingWhitelist())) {
-			List<Integer> removed = serverProcessingQueue.removeListener(handler, listener.getSendingWhitelist());
-			
-			// We're already taking care of this, so don't do anything
-			if (!cleaningUp)
-				serverQueue.signalPacketUpdate(removed, synchronusOK);
-		}
-		
-		if (hasValidWhitelist(listener.getReceivingWhitelist())) {
-			List<Integer> removed = clientProcessingQueue.removeListener(handler, listener.getReceivingWhitelist());
-			
-			if (!cleaningUp)
-				clientQueue.signalPacketUpdate(removed, synchronusOK);
-		}
-	}
-	
-	/**
-	 * Determine if we're running on the main thread.
-	 * @return TRUE if we are, FALSE otherwise.
-	 */
-	private boolean onMainThread() {
-		return Thread.currentThread().getId() == mainThread.getId();
-	}
-	
-	@Override
-	public void unregisterAsyncHandlers(Plugin plugin) {
-		unregisterAsyncHandlers(serverProcessingQueue, plugin);
-		unregisterAsyncHandlers(clientProcessingQueue, plugin);
-	}
-	
-	private void unregisterAsyncHandlers(PacketProcessingQueue processingQueue, Plugin plugin) {
-		
-		// Iterate through every packet listener
-		for (PrioritizedListener<AsyncListenerHandler> listener : processingQueue.values()) {			
-			// Remove the listener
-			if (Objects.equal(listener.getListener().getPlugin(), plugin)) {
-				unregisterAsyncHandler(listener.getListener());
-			}
-		}
-	}
-	
-	/**
-	 * Enqueue a packet for asynchronous processing.
-	 * @param syncPacket - synchronous packet event.
-	 * @param asyncMarker - the asynchronous marker to use.
-	 */
-	public void enqueueSyncPacket(PacketEvent syncPacket, AsyncMarker asyncMarker) {
-		PacketEvent newEvent = PacketEvent.fromSynchronous(syncPacket, asyncMarker);
-		
-		// Start the process
-		getSendingQueue(syncPacket).enqueue(newEvent);
-		
-		// We know this is occuring on the main thread, so pass TRUE
-		getProcessingQueue(syncPacket).enqueue(newEvent, true);
-	}
-	
-	@Override
-	public Set<Integer> getSendingFilters() {
-		return serverProcessingQueue.keySet();
-	}
-	
-	@Override
-	public Set<Integer> getReceivingFilters() {
-		return clientProcessingQueue.keySet();
-	}
-	
-	/**
-	 * Used to create a default asynchronous task.
-	 * @param plugin - the calling plugin.
-	 * @param runnable - the runnable.
-	 */
-	public void scheduleAsyncTask(Plugin plugin, Runnable runnable) {
-		scheduler.scheduleAsyncDelayedTask(plugin, runnable);
-	}
-	
-	@Override
-	public boolean hasAsynchronousListeners(PacketEvent packet) {
-		 Collection<?> list = getProcessingQueue(packet).getListener(packet.getPacketID());
-		 return list != null && list.size() > 0;
-	}
-	
-	/**
-	 * Construct a asynchronous marker with all the default values.
-	 * @return Asynchronous marker.
-	 */
-	public AsyncMarker createAsyncMarker() {
-		return createAsyncMarker(AsyncMarker.DEFAULT_SENDING_DELTA, AsyncMarker.DEFAULT_TIMEOUT_DELTA);
-	}
-	
-	/**
-	 * Construct an async marker with the given sending priority delta and timeout delta.
-	 * @param sendingDelta - how many packets we're willing to wait.
-	 * @param timeoutDelta - how long (in ms) until the packet expire.
-	 * @return An async marker.
-	 */
-	public AsyncMarker createAsyncMarker(long sendingDelta, long timeoutDelta) {
-		return createAsyncMarker(sendingDelta, timeoutDelta, 
-								 currentSendingIndex.incrementAndGet(), System.currentTimeMillis());
-	}
-	
-	// Helper method
-	private AsyncMarker createAsyncMarker(long sendingDelta, long timeoutDelta, long sendingIndex, long currentTime) {
-		return new AsyncMarker(manager, sendingIndex, sendingDelta, System.currentTimeMillis(), timeoutDelta);
-	}
-	
-	@Override
-	public PacketStream getPacketStream() {
-		return manager;
-	}
-
-	@Override
-	public Logger getLogger() {
-		return logger;
-	}
-
-	@Override
-	public void cleanupAll() {
-		cleaningUp = true;
-		serverProcessingQueue.cleanupAll();
-		serverQueue.cleanupAll();
-	}
-
-	/**
-	 * Signal that a packet is ready to be transmitted.
-	 * @param packet - packet to signal.
-	 */
-	public void signalPacketUpdate(PacketEvent packet) {
-		getSendingQueue(packet).signalPacketUpdate(packet, onMainThread());
-	}
-
-	/**
-	 * Retrieve the sending queue this packet belongs to.
-	 * @param packet - the packet.
-	 * @return The server or client sending queue the packet belongs to.
-	 */
-	private PacketSendingQueue getSendingQueue(PacketEvent packet) {
-		return packet.isServerPacket() ? serverQueue : clientQueue;
-	}
-	
-	/**
-	 * Signal that a packet has finished processing.
-	 * @param packet - packet to signal.
-	 */
-	public void signalProcessingDone(PacketEvent packet) {
-		getProcessingQueue(packet).signalProcessingDone();
-	}
-	
-	/**
-	 * Retrieve the processing queue this packet belongs to.
-	 * @param packet - the packet.
-	 * @return The server or client sending processing the packet belongs to.
-	 */
-	private PacketProcessingQueue getProcessingQueue(PacketEvent packet) {
-		return packet.isServerPacket() ? serverProcessingQueue : clientProcessingQueue;
-	}
-
-	/**
-	 * Send any due packets, or clean up packets that have expired.
-	 */
-	public void sendProcessedPackets(int tickCounter, boolean onMainThread) {
-		
-		// The server queue is unlikely to need checking that often
-		if (tickCounter % 10 == 0) {
-			serverQueue.trySendPackets(onMainThread);
-		}
-
-		clientQueue.trySendPackets(onMainThread);
-	}
-}

ProtocolLib/src/com/comphenix/protocol/async/AsyncListenerHandler.java

@@ -1,210 +0,0 @@
-package com.comphenix.protocol.async;
-
-import java.util.concurrent.ArrayBlockingQueue;
-import java.util.logging.Level;
-
-import org.bukkit.plugin.Plugin;
-
-import com.comphenix.protocol.events.PacketAdapter;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.events.PacketListener;
-
-/**
- * Represents a handler for an asynchronous event.
- * 
- * @author Kristian
- */
-public class AsyncListenerHandler {
-
-	/**
-	 * Signal an end to the packet processing.
-	 */
-	private static final PacketEvent INTERUPT_PACKET = new PacketEvent(new Object());
-	
-	// Default queue capacity
-	private static int DEFAULT_CAPACITY = 1024;
-	
-	// Cancel the async handler
-	private volatile boolean cancelled;
-	
-	// If we've started the listener loop before
-	private volatile boolean started;
-	
-	// The packet listener
-	private PacketListener listener;
-
-	// The filter manager
-	private AsyncFilterManager filterManager;
-	private NullPacketListener nullPacketListener;
-	
-	// List of queued packets
-	private ArrayBlockingQueue<PacketEvent> queuedPackets = new ArrayBlockingQueue<PacketEvent>(DEFAULT_CAPACITY);
-
-	// Minecraft main thread
-	private Thread mainThread;
-	
-	public AsyncListenerHandler(Thread mainThread, AsyncFilterManager filterManager, PacketListener listener) {
-		if (filterManager == null)
-			throw new IllegalArgumentException("filterManager cannot be NULL");
-		if (listener == null)
-			throw new IllegalArgumentException("listener cannot be NULL");
-
-		this.mainThread = mainThread;
-		this.filterManager = filterManager;
-		this.listener = listener;
-	}
-	
-	public boolean isCancelled() {
-		return cancelled;
-	}
-
-	public PacketListener getAsyncListener() {
-		return listener;
-	}
-
-	/**
-	 * Set the synchronized listener that has been automatically created.
-	 * @param nullPacketListener - automatically created listener.
-	 */
-	void setNullPacketListener(NullPacketListener nullPacketListener) {
-		this.nullPacketListener = nullPacketListener;
-	}
-
-	/**
-	 * Retrieve the synchronized listener that was automatically created.
-	 * @return Automatically created listener.
-	 */
-	PacketListener getNullPacketListener() {
-		return nullPacketListener;
-	}
-	
-	/**
-	 * Cancel the handler.
-	 */
-	public void cancel() {
-		// Remove the listener as quickly as possible
-		close();
-		
-		// Poison Pill Shutdown
-		queuedPackets.clear();
-		queuedPackets.add(INTERUPT_PACKET);
-	}
-	
-	/**
-	 * Queue a packet for processing.
-	 * @param packet - a packet for processing.
-	 * @throws IllegalStateException If the underlying packet queue is full.
-	 */
-	public void enqueuePacket(PacketEvent packet) {
-		if (packet == null)
-			throw new IllegalArgumentException("packet is NULL");
-		
-		queuedPackets.add(packet);
-	}
-	
-	/**
-	 * Create a runnable that will initiate the listener loop.
-	 * <p>
-	 * <b>Warning</b>: Never call the run() method in the main thread.
-	 */
-	public Runnable getListenerLoop() {
-		return new Runnable() {
-			@Override
-			public void run() {
-				listenerLoop();
-			}
-		};
-	}
-	
-	// DO NOT call this method from the main thread
-	private void listenerLoop() {
-		
-		// Danger, danger!
-		if (Thread.currentThread().getId() == mainThread.getId()) 
-			throw new IllegalStateException("Do not call this method from the main thread.");
-		if (started) 
-			throw new IllegalStateException("A listener cannot be run by multiple threads. Create a new listener instead.");
-		if (cancelled)
-			throw new IllegalStateException("Listener has been cancelled. Create a new listener instead.");
-		
-		// Proceed
-		started = true;
-		
-		try {
-			mainLoop:
-			while (!cancelled) {
-				PacketEvent packet = queuedPackets.take();
-				AsyncMarker marker = packet.getAsyncMarker();
-				
-				// Handle cancel requests
-				if (packet == null || marker == null || !packet.isAsynchronous()) {
-					break;
-				}
-				
-				// Here's the core of the asynchronous processing
-				try {
-					if (packet.isServerPacket())
-						listener.onPacketSending(packet);
-					else
-						listener.onPacketReceiving(packet);
-					
-				} catch (Throwable e) {
-					// Minecraft doesn't want your Exception.
-					filterManager.getLogger().log(Level.SEVERE, 
-							"Unhandled exception occured in onAsyncPacket() for " + getPluginName(), e);
-				}
-				
-				// Now, get the next non-cancelled listener
-				for (; marker.getListenerTraversal().hasNext(); ) {
-					AsyncListenerHandler handler = marker.getListenerTraversal().next().getListener();
-					
-					if (!handler.isCancelled()) {
-						handler.enqueuePacket(packet);
-						continue mainLoop;
-					}
-				}
-				
-				// There are no more listeners - queue the packet for transmission
-				filterManager.signalPacketUpdate(packet);
-				filterManager.signalProcessingDone(packet);
-			}
-			
-		} catch (InterruptedException e) {
-			// We're done
-		}
-		
-		// Clean up
-		close();
-	}
-	
-	private void close() {
-		// Remove the listener itself
-		if (!cancelled) {
-			filterManager.unregisterAsyncHandlerInternal(this);
-			cancelled = true;
-			started = false;
-		}
-	}
-	
-	private String getPluginName() {
-		return PacketAdapter.getPluginName(listener);
-	}
-
-	/**
-	 * Retrieve the plugin associated with this async listener.
-	 * @return The plugin.
-	 */
-	public Plugin getPlugin() {
-		return listener != null ? listener.getPlugin() : null;
-	}
-
-	/**
-	 * Start the asynchronous listener using the Bukkit scheduler.
-	 */
-	public void start() {
-		if (listener.getPlugin() == null)
-			throw new IllegalArgumentException("Cannot start task without a valid plugin.");
-		
-		filterManager.scheduleAsyncTask(listener.getPlugin(), getListenerLoop());
-	}
-}

ProtocolLib/src/com/comphenix/protocol/async/PacketEventHolder.java

@@ -1,40 +0,0 @@
-package com.comphenix.protocol.async;
-
-import com.comphenix.protocol.events.PacketEvent;
-import com.google.common.base.Preconditions;
-import com.google.common.collect.ComparisonChain;
-
-/**
- * Provides a comparable to a packet event.
- * 
- * @author Kristian
- */
-class PacketEventHolder implements Comparable<PacketEventHolder> {
-
-	private PacketEvent event;
-
-	/**
-	 * A wrapper that ensures the packet event is ordered by sending index.
-	 * @param event - packet event to wrap.
-	 */
-	public PacketEventHolder(PacketEvent event) {
-		this.event = Preconditions.checkNotNull(event, "Event must be non-null");
-	}
-
-	/**
-	 * Retrieve the stored event.
-	 * @return The stored event.
-	 */
-	public PacketEvent getEvent() {
-		return event;
-	}
-	
-	@Override
-	public int compareTo(PacketEventHolder other) {
-		AsyncMarker marker = other != null ? other.getEvent().getAsyncMarker() : null;
-		
-		return ComparisonChain.start().
-			   compare(event.getAsyncMarker(), marker).
-			   result();
-	}
-}

ProtocolLib/src/com/comphenix/protocol/async/PacketSendingQueue.java

@@ -1,170 +0,0 @@
-package com.comphenix.protocol.async;
-
-import java.io.IOException;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-import java.util.concurrent.PriorityBlockingQueue;
-
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.reflect.FieldAccessException;
-
-/**
- * Represents packets ready to be transmitted to a client.
- * @author Kristian
- */
-class PacketSendingQueue {
-
-	public static final int INITIAL_CAPACITY = 64;
-	
-	private PriorityBlockingQueue<PacketEventHolder> sendingQueue;
-	
-	// Whether or not packet transmission can only occur on the main thread
-	private final boolean synchronizeMain;
-	
-	/**
-	 * Create a packet sending queue.
-	 * @param synchronizeMain - whether or not to synchronize with the main thread.
-	 */
-	public PacketSendingQueue(boolean synchronizeMain) {
-		this.sendingQueue = new PriorityBlockingQueue<PacketEventHolder>(INITIAL_CAPACITY);
-		this.synchronizeMain = synchronizeMain;
-	}
-	
-	/**
-	 * Enqueue a packet for sending. 
-	 * @param packet
-	 */
-	public void enqueue(PacketEvent packet) {
-		sendingQueue.add(new PacketEventHolder(packet));
-	}
-	
-	/**
-	 * Invoked when one of the packets have finished processing.
-	 * @param packetUpdated - the packet that has now been updated.
-	 * @param onMainThread - whether or not this is occuring on the main thread.
-	 */
-	public synchronized void signalPacketUpdate(PacketEvent packetUpdated, boolean onMainThread) {
-		// Mark this packet as finished
-		packetUpdated.getAsyncMarker().setProcessed(true);
-		trySendPackets(onMainThread);
-	}
-
-	/***
-	 * Invoked when a list of packet IDs are no longer associated with any listeners.
-	 * @param packetsRemoved - packets that no longer have any listeners.
-	 * @param onMainThread - whether or not this is occuring on the main thread.
-	 */
-	public synchronized void signalPacketUpdate(List<Integer> packetsRemoved, boolean onMainThread) {
-		
-		Set<Integer> lookup = new HashSet<Integer>(packetsRemoved);
-		
-		// Note that this is O(n), so it might be expensive
-		for (PacketEventHolder holder : sendingQueue) {
-			PacketEvent event = holder.getEvent();
-			
-			if (lookup.contains(event.getPacketID())) {
-				event.getAsyncMarker().setProcessed(true);
-			}
-		}
-		
-		// This is likely to have changed the situation a bit
-		trySendPackets(onMainThread);
-	}
-	
-	/**
-	 * Attempt to send any remaining packets.
-	 * @param onMainThread - whether or not this is occuring on the main thread.
-	 */
-	public void trySendPackets(boolean onMainThread) {
-				
-		// Transmit as many packets as we can
-		while (true) {
-			PacketEventHolder holder = sendingQueue.peek();
-					
-			if (holder != null) {
-				PacketEvent current = holder.getEvent();
-				AsyncMarker marker = current.getAsyncMarker();
-				
-				// Abort if we're not on the main thread
-				if (synchronizeMain) {
-					try {
-						boolean wantAsync = marker.isMinecraftAsync(current);
-						boolean wantSync = !wantAsync;
-						
-						// Quit if we haven't fulfilled our promise
-						if ((onMainThread && wantAsync) || (!onMainThread && wantSync))
-							return;
-						
-					} catch (FieldAccessException e) {
-						e.printStackTrace();
-						return;
-					}
-				}
-				
-				if (marker.isProcessed() || marker.hasExpired()) {
-					if (marker.isProcessed() && !current.isCancelled()) {
-						sendPacket(current);
-					}
-					
-					sendingQueue.poll();
-					continue;
-				}
-			}
-			
-			// Only repeat when packets are removed
-			break;
-		}
-	}
-	
-	/**
-	 * Send every packet, regardless of the processing state.
-	 */
-	private void forceSend() {
-		while (true) {
-			PacketEventHolder holder = sendingQueue.poll();
-			
-			if (holder != null) {
-				sendPacket(holder.getEvent());
-			} else {
-				break;
-			}
-		}
-	}
-	
-	/**
-	 * Whether or not the packet transmission must synchronize with the main thread.
-	 * @return TRUE if it must, FALSE otherwise.
-	 */
-	public boolean isSynchronizeMain() {
-		return synchronizeMain;
-	}
-
-	/**
-	 * Transmit a packet, if it hasn't already.
-	 * @param event - the packet to transmit.
-	 */
-	private void sendPacket(PacketEvent event) {
-		
-		AsyncMarker marker = event.getAsyncMarker();
-		
-		try {
-			// Don't send a packet twice
-			if (marker != null && !marker.isTransmitted()) {
-				marker.sendPacket(event);
-			}
-			
-		} catch (IOException e) {
-			// Just print the error
-			e.printStackTrace();
-		}
-	}
-
-	/**
-	 * Automatically transmits every delayed packet.
-	 */
-	public void cleanupAll() {
-		// Note that the cleanup itself will always occur on the main thread
-		forceSend();
-	}
-}

ProtocolLib/src/com/comphenix/protocol/events/ListeningWhitelist.java

@@ -1,127 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.events;
-
-import java.util.Set;
-
-import com.google.common.base.Objects;
-import com.google.common.collect.Sets;
-
-/**
- * Determines which packets will be observed by a listener, and with what priority.
-
- * @author Kristian 
- */
-public class ListeningWhitelist {
-
-	/**
-	 * A whitelist with no packets - indicates that the listener shouldn't observe any packets.
-	 */
-	public static ListeningWhitelist EMPTY_WHITELIST = new ListeningWhitelist(ListenerPriority.LOW);
-	
-	private ListenerPriority priority;
-	private Set<Integer> whitelist;
-
-	/**
-	 * Creates a packet whitelist for a given priority with a set of packet IDs.
-	 * @param priority - the listener priority.
-	 * @param whitelist - set of IDs to observe/enable. 
-	 */
-	public ListeningWhitelist(ListenerPriority priority, Set<Integer> whitelist) {
-		this.priority = priority;
-		this.whitelist = whitelist;
-	}
-	
-	/**
-	 * Creates a packet whitelist of a given priority for a list of packets.
-	 * @param priority - the listener priority.
-	 * @param whitelist - list of packet IDs to observe/enable.
-	 */
-	public ListeningWhitelist(ListenerPriority priority, Integer... whitelist) {
-		this.priority = priority;
-		this.whitelist = Sets.newHashSet(whitelist);
-	}
-	
-	/**
-	 * Whether or not this whitelist has any enabled packets.
-	 * @return TRUE if there are any packets, FALSE otherwise.
-	 */
-	public boolean isEnabled() {
-		return whitelist != null && whitelist.size() > 0;
-	}
-	
-	/**
-	 * Retrieve the priority in the execution order of the packet listener. Highest priority will be executed last.
-	 * @return Execution order in terms of priority.
-	 */
-	public ListenerPriority getPriority() {
-		return priority;
-	}
-	
-	/**
-	 * Retrieves the list of packets that will be observed by the listeners.
-	 * @return Packet whitelist.
-	 */
-	public Set<Integer> getWhitelist() {
-		return whitelist;
-	}
-	
-	@Override
-	public int hashCode(){
-	    return Objects.hashCode(priority, whitelist);
-	}
-
-	/**
-	 * Determine if any of the given IDs can be found in the whitelist.
-	 * @param whitelist - whitelist to test.
-	 * @param idList - list of packet IDs to find. 
-	 * @return TRUE if any of the packets in the list can be found in the whitelist, FALSE otherwise.
-	 */
-	public static boolean containsAny(ListeningWhitelist whitelist, int... idList) {
-		if (whitelist != null) {
-			for (int i = 0; i < idList.length; i++) {
-				if (whitelist.getWhitelist().contains(idList[i]))
-					return true;
-			}
-		}
-		
-		return false;
-	}
-	
-	@Override
-	public boolean equals(final Object obj){
-	    if(obj instanceof ListeningWhitelist){
-	        final ListeningWhitelist other = (ListeningWhitelist) obj;
-	        return Objects.equal(priority, other.priority)
-	            && Objects.equal(whitelist, other.whitelist);
-	    } else{
-	        return false;
-	    }
-	}
-	
-	@Override
-	public String toString() {
-		if (this == EMPTY_WHITELIST)
-			return "EMPTY_WHITELIST";
-		else
-			return Objects.toStringHelper(this)
-				.add("priority", priority)
-				.add("packets", whitelist).toString();
-	}
-	
-}

ProtocolLib/src/com/comphenix/protocol/events/PacketAdapter.java

@@ -1,124 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.events;
-
-import org.bukkit.plugin.Plugin;
-
-/**
- * Represents a packet listener with useful constructors.
- * 
- * @author Kristian
- */
-public abstract class PacketAdapter implements PacketListener {
-	
-	protected Plugin plugin;
-	protected ConnectionSide connectionSide;
-	protected ListeningWhitelist receivingWhitelist = ListeningWhitelist.EMPTY_WHITELIST;
-	protected ListeningWhitelist sendingWhitelist = ListeningWhitelist.EMPTY_WHITELIST;
-
-	/**
-	 * Initialize a packet listener with default priority.
-	 * @param plugin - the plugin that spawned this listener.
-	 * @param connectionSide - the packet type the listener is looking for.
-	 * @param packets - the packet IDs the listener is looking for.
-	 */
-	public PacketAdapter(Plugin plugin, ConnectionSide connectionSide, Integer... packets) {
-		this(plugin, connectionSide, ListenerPriority.NORMAL, packets);
-	}
-	
-	/**
-	 * Initialize a packet listener for a single connection side.
-	 * @param plugin - the plugin that spawned this listener.
-	 * @param connectionSide - the packet type the listener is looking for.
-	 * @param listenerPriority - the event priority.
-	 * @param packets - the packet IDs the listener is looking for.
-	 */
-	public PacketAdapter(Plugin plugin, ConnectionSide connectionSide, ListenerPriority listenerPriority, Integer... packets) {
-		if (plugin == null)
-			throw new IllegalArgumentException("plugin cannot be null");
-		if (connectionSide == null)
-			throw new IllegalArgumentException("connectionSide cannot be null");
-		if (listenerPriority == null)
-			throw new IllegalArgumentException("listenerPriority cannot be null");
-		if (packets == null)
-			throw new IllegalArgumentException("packets cannot be null");
-		
-		// Add whitelists
-		if (connectionSide.isForServer())
-			sendingWhitelist = new ListeningWhitelist(listenerPriority, packets);
-		if (connectionSide.isForClient())
-			receivingWhitelist = new ListeningWhitelist(listenerPriority, packets);
-		
-		this.plugin = plugin;
-		this.connectionSide = connectionSide;
-	}
-	
-	@Override
-	public void onPacketReceiving(PacketEvent event) {
-		// Default is to do nothing
-	}
-	
-	@Override
-	public void onPacketSending(PacketEvent event) {
-		// And here too
-	}
-	
-	@Override
-	public ListeningWhitelist getReceivingWhitelist() {
-		return receivingWhitelist;
-	}
-	
-	@Override
-	public ListeningWhitelist getSendingWhitelist() {
-		return sendingWhitelist;
-	}
-	
-	@Override
-	public Plugin getPlugin() {
-		return plugin;
-	}
-	
-	/**
-	 * Retrieves the name of the plugin that has been associated with the listener.
-	 * @return Name of the associated plugin.
-	 */
-	public static String getPluginName(PacketListener listener) {
-		
-		Plugin plugin = listener.getPlugin();
-		
-		// Try to get the plugin name
-		try {
-			if (plugin == null)
-				return "UNKNOWN";
-			else
-				return plugin.getName();
-			
-		} catch (NoSuchMethodError e) {
-			return plugin.toString();
-		}
-	}
-	
-	@Override
-	public String toString() {		
-		// This is used by the error reporter 
-		return String.format("PacketAdapter[plugin=%s, sending=%s, receiving=%s]", 
-				getPluginName(this), 
-				sendingWhitelist,
-				receivingWhitelist);
-	}
-}

ProtocolLib/src/com/comphenix/protocol/events/PacketContainer.java

@@ -1,365 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.events;
-
-import java.io.DataInputStream;
-import java.io.DataOutputStream;
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.io.Serializable;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-
-import org.bukkit.World;
-import org.bukkit.WorldType;
-import org.bukkit.craftbukkit.CraftWorld;
-import org.bukkit.craftbukkit.inventory.CraftItemStack;
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.Player;
-import org.bukkit.inventory.ItemStack;
-
-import com.comphenix.protocol.injector.StructureCache;
-import com.comphenix.protocol.reflect.EquivalentConverter;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-import com.comphenix.protocol.reflect.StructureModifier;
-
-import net.minecraft.server.Packet;
-
-/**
- * Represents a Minecraft packet indirectly.
- * 
- * @author Kristian
- */
-public class PacketContainer implements Serializable {
-
-	/**
-	 * Generated by Eclipse.
-	 */
-	private static final long serialVersionUID = 2074805748222377230L;
-	
-	protected int id;
-	protected transient Packet handle;
-
-	// Current structure modifier
-	protected transient StructureModifier<Object> structureModifier;
-		
-	// Check whether or not certain classes exists
-	private static boolean hasWorldType = false;
-	
-	// The getEntity method
-	private static Method getEntity;
-	
-	// Support for serialization
-	private static Method writeMethod;
-	private static Method readMethod;
-	
-	static {
-		try {
-			Class.forName("net.minecraft.server.WorldType");
-			hasWorldType = true;
-		} catch (ClassNotFoundException e) {
-		}
-	}
-	
-	/**
-	 * Creates a packet container for a new packet.
-	 * @param id - ID of the packet to create.
-	 */
-	public PacketContainer(int id) {
-		this(id, StructureCache.newPacket(id));
-	}
-	
-	/**
-	 * Creates a packet container for an existing packet.
-	 * @param id - ID of the given packet.
-	 * @param handle - contained packet.
-	 */
-	public PacketContainer(int id, Packet handle) {
-		this(id, handle, StructureCache.getStructure(id).withTarget(handle));
-	}
-	
-	/**
-	 * Creates a packet container for an existing packet.
-	 * @param id - ID of the given packet.
-	 * @param handle - contained packet.
-	 * @param structure - structure modifier.
-	 */
-	public PacketContainer(int id, Packet handle, StructureModifier<Object> structure) {
-		if (handle == null)
-			throw new IllegalArgumentException("handle cannot be null.");
-		
-		this.id = id;
-		this.handle = handle;
-		this.structureModifier = structure;
-	}
-	
-	/**
-	 * Retrieves the underlying Minecraft packet. 
-	 * @return Underlying Minecraft packet.
-	 */
-	public Packet getHandle() {
-		return handle;
-	}
-	
-	/**
-	 * Retrieves the generic structure modifier for this packet.
-	 * @return Structure modifier.
-	 */
-	public StructureModifier<Object> getModifier() {
-		return structureModifier;
-	}
-	
-	/**
-	 * Retrieves a read/write structure for every field with the given type.
-	 * @param primitiveType - the type to find.
-	 * @return A modifier for this specific type.
-	 */
-	public <T> StructureModifier<T> getSpecificModifier(Class<T> primitiveType) {
-		return structureModifier.withType(primitiveType);
-	}
-	
-	/**
-	 * Retrieves a read/write structure for ItemStack.
-	 * <p>
-	 * This modifier will automatically marshall between the Bukkit ItemStack and the
-	 * internal Minecraft ItemStack.
-	 * @return A modifier for ItemStack fields.
-	 */
-	public StructureModifier<ItemStack> getItemModifier() {
-		// Convert from and to the Bukkit wrapper
-		return structureModifier.<ItemStack>withType(net.minecraft.server.ItemStack.class, new EquivalentConverter<ItemStack>() {
-			public Object getGeneric(ItemStack specific) {
-				return ((CraftItemStack) specific).getHandle();
-			}
-			
-			@Override
-			public ItemStack getSpecific(Object generic) {
-				return new CraftItemStack((net.minecraft.server.ItemStack) generic);
-			}
-			
-			@Override
-			public Class<ItemStack> getSpecificType() {
-				return ItemStack.class;
-			}
-		});
-	}
-	
-	/**
-	 * Retrieves a read/write structure for arrays of ItemStacks.
-	 * <p>
-	 * This modifier will automatically marshall between the Bukkit ItemStack and the
-	 * internal Minecraft ItemStack.
-	 * @return A modifier for ItemStack array fields.
-	 */
-	public StructureModifier<ItemStack[]> getItemArrayModifier() {
-		// Convert to and from the Bukkit wrapper
-		return structureModifier.<ItemStack[]>withType(net.minecraft.server.ItemStack[].class, new EquivalentConverter<ItemStack[]>() {
-			public Object getGeneric(ItemStack[] specific) {
-				net.minecraft.server.ItemStack[] result = new net.minecraft.server.ItemStack[specific.length];
-				
-				// Unwrap every item
-				for (int i = 0; i < result.length; i++) {
-					result[i] = ((CraftItemStack) specific[i]).getHandle();
-				}
-				return result;
-			}
-			
-			@Override
-			public ItemStack[] getSpecific(Object generic) {
-				net.minecraft.server.ItemStack[] input = (net.minecraft.server.ItemStack[]) generic;
-				ItemStack[] result = new ItemStack[input.length];
-				
-				// Add the wrapper
-				for (int i = 0; i < result.length; i++) {
-					result[i] = new CraftItemStack(input[i]);
-				}
-				return result;
-			}
-			
-			@Override
-			public Class<ItemStack[]> getSpecificType() {
-				return ItemStack[].class;
-			}
-		});
-	}
-	
-	/**
-	 * Retrieves a read/write structure for the world type enum.
-	 * <p>
-	 * This modifier will automatically marshall between the Bukkit world type and the
-	 * internal Minecraft world type.
-	 * @return A modifier for world type fields.
-	 */
-	public StructureModifier<WorldType> getWorldTypeModifier() {
-	
-		if (!hasWorldType) {
-			// We couldn't find the Minecraft equivalent
-			return structureModifier.withType(null);
-		}
-		
-		// Convert to and from the Bukkit wrapper
-		return structureModifier.<WorldType>withType(net.minecraft.server.WorldType.class, new EquivalentConverter<WorldType>() {
-			@Override
-			public Object getGeneric(WorldType specific) {
-				return net.minecraft.server.WorldType.getType(specific.getName());
-			}
-			
-			@Override
-			public WorldType getSpecific(Object generic) {
-				net.minecraft.server.WorldType type = (net.minecraft.server.WorldType) generic;
-				return WorldType.getByName(type.name());
-			}
-			
-			@Override
-			public Class<WorldType> getSpecificType() {
-				return WorldType.class;
-			}
-		});
-	}
-	
-	/**
-	 * Retrieves a read/write structure for entity objects.
-	 * <p>
-	 * Note that entities are transmitted by integer ID, and the type may not be enough
-	 * to distinguish between entities and other values. Thus, this structure modifier
-	 * MAY return null or invalid entities for certain fields. Using the correct index 
-	 * is essential.
-	 * 
-	 * @return A modifier entity types.
-	 */
-	public StructureModifier<Entity> getEntityModifier(World world) {
-	
-		final Object worldServer = ((CraftWorld) world).getHandle();
-		final Class<?> nmsEntityClass = net.minecraft.server.Entity.class;
-		final World worldCopy = world;
-		
-		if (getEntity == null)
-			getEntity = FuzzyReflection.fromObject(worldServer).getMethodByParameters(
-					"getEntity", nmsEntityClass, new Class[] { int.class });
-		
-		// Convert to and from the Bukkit wrapper
-		return structureModifier.<Entity>withType(int.class, new EquivalentConverter<Entity>() {
-			@Override
-			public Object getGeneric(Entity specific) {
-				// Simple enough
-				return specific.getEntityId();
-			}
-			
-			@Override
-			public Entity getSpecific(Object generic) {
-				try {
-					net.minecraft.server.Entity nmsEntity = (net.minecraft.server.Entity) 
-							getEntity.invoke(worldServer, generic);
-					Integer id = (Integer) generic;
-					
-					// Attempt to get the Bukkit entity
-					if (nmsEntity != null) {
-						return nmsEntity.getBukkitEntity();
-					} else {
-						// Maybe it's a player that's just logged in? Try a search
-						for (Player player : worldCopy.getPlayers()) {
-							if (player.getEntityId() == id) {
-								return player;
-							}
-						}
-						
-						System.out.println("Entity doesn't exist.");
-						return null;
-					}
-					
-				} catch (IllegalArgumentException e) {
-					throw new RuntimeException("Incorrect arguments detected.", e);
-				} catch (IllegalAccessException e) {
-					throw new RuntimeException("Cannot read field due to a security limitation.", e);
-				} catch (InvocationTargetException e) {
-					throw new RuntimeException("Error occured in Minecraft method.", e.getCause());
-				}
-			}
-			
-			@Override
-			public Class<Entity> getSpecificType() {
-				return Entity.class;
-			}
-		});
-	}
-	
-	/**
-	 * Retrieves the ID of this packet.
-	 * @return Packet ID.
-	 */
-	public int getID() {
-		return id;
-	}
-	
-	private void writeObject(ObjectOutputStream output) throws IOException {
-	    // Default serialization 
-		output.defaultWriteObject();
-
-		// We'll take care of NULL packets as well
-		output.writeBoolean(handle != null);
-		
-		// Retrieve the write method by reflection
-		if (writeMethod == null)
-			writeMethod = FuzzyReflection.fromObject(handle).getMethodByParameters("write", DataOutputStream.class);
-		
-		try {
-			// Call the write-method
-			writeMethod.invoke(handle, new DataOutputStream(output));
-		} catch (IllegalArgumentException e) {
-			throw new IOException("Minecraft packet doesn't support DataOutputStream", e);
-		} catch (IllegalAccessException e) {
-			throw new RuntimeException("Insufficient security privileges.", e);
-		} catch (InvocationTargetException e) {
-			throw new IOException("Could not serialize Minecraft packet.", e);
-		}
-	}
-
-	private void readObject(ObjectInputStream input) throws ClassNotFoundException, IOException {
-	    // Default deserialization
-		input.defaultReadObject();
-		
-		// Get structure modifier
-		structureModifier = StructureCache.getStructure(id);
-
-	    // Don't read NULL packets
-	    if (input.readBoolean()) {
-	    	
-	    	// Create a default instance of the packet
-	    	handle = StructureCache.newPacket(id);
-	    	
-			// Retrieve the read method by reflection
-			if (readMethod == null)
-				readMethod = FuzzyReflection.fromObject(handle).getMethodByParameters("read", DataInputStream.class);
-	    	
-			// Call the read method
-			try {
-				readMethod.invoke(handle, new DataInputStream(input));
-			} catch (IllegalArgumentException e) {
-				throw new IOException("Minecraft packet doesn't support DataInputStream", e);
-			} catch (IllegalAccessException e) {
-				throw new RuntimeException("Insufficient security privileges.", e);
-			} catch (InvocationTargetException e) {
-				throw new IOException("Could not deserialize Minecraft packet.", e);
-			}
-			
-			// And we're done
-			structureModifier = structureModifier.withTarget(handle);
-	    }
-	}
-}

ProtocolLib/src/com/comphenix/protocol/events/PacketEvent.java

@@ -1,214 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.events;
-
-import java.io.IOException;
-import java.io.ObjectInputStream;
-import java.io.ObjectOutputStream;
-import java.util.EventObject;
-
-import org.bukkit.entity.Player;
-import org.bukkit.event.Cancellable;
-
-import com.comphenix.protocol.async.AsyncMarker;
-
-public class PacketEvent extends EventObject implements Cancellable {
-	/**
-	 * Automatically generated by Eclipse.
-	 */
-	private static final long serialVersionUID = -5360289379097430620L;
-
-	private transient Player player;
-	private PacketContainer packet;
-	private boolean serverPacket;
-	private boolean cancel;
-	
-	private AsyncMarker asyncMarker;
-	private boolean asynchronous;
-	
-	/**
-	 * Use the static constructors to create instances of this event.
-	 * @param source - the event source.
-	 */
-	public PacketEvent(Object source) {
-		super(source);
-	}
-
-	private PacketEvent(Object source, PacketContainer packet, Player player, boolean serverPacket) {
-		super(source);
-		this.packet = packet;
-		this.player = player;
-		this.serverPacket = serverPacket;
-	}
-	
-	private PacketEvent(PacketEvent origial, AsyncMarker asyncMarker) {
-		super(origial.source);
-		this.packet = origial.packet;
-		this.player = origial.player;
-		this.cancel = origial.cancel;
-		this.serverPacket = origial.serverPacket;
-		this.asyncMarker = asyncMarker;
-		this.asynchronous = true;
-	}
-
-	/**
-	 * Creates an event representing a client packet transmission.
-	 * @param source - the event source.
-	 * @param packet - the packet.
-	 * @param client - the client that sent the packet.
-	 * @return The event.
-	 */
-	public static PacketEvent fromClient(Object source, PacketContainer packet, Player client) {
-		return new PacketEvent(source, packet, client, false);
-	}
-	
-	/**
-	 * Creates an event representing a server packet transmission.
-	 * @param source - the event source.
-	 * @param packet - the packet.
-	 * @param recipient - the client that will receieve the packet.
-	 * @return The event.
-	 */
-	public static PacketEvent fromServer(Object source,  PacketContainer packet, Player recipient) {
-		return new PacketEvent(source, packet, recipient, true);
-	}
-	
-	/**
-	 * Create an asynchronous packet event from a synchronous event and a async marker.
-	 * @param event - the original synchronous event.
-	 * @param marker - the asynchronous marker.
-	 * @return The new packet event.
-	 */
-	public static PacketEvent fromSynchronous(PacketEvent event, AsyncMarker marker) {
-		return new PacketEvent(event, marker);
-	}
-	
-	/**
-	 * Retrieves the packet that will be sent to the player.
-	 * @return Packet to send to the player.
-	 */
-	public PacketContainer getPacket() {
-		return packet;
-	}
-
-	/**
-	 * Replace the packet that will be sent to the player.
-	 * @param packet - the packet that will be sent instead.
-	 */
-	public void setPacket(PacketContainer packet) {
-		this.packet = packet;
-	}
-
-	/**
-	 * Retrieves the packet ID.
-	 * @return The current packet ID.
-	 */
-	public int getPacketID() {
-		return packet.getID();
-	}
-	
-	/**
-	 * Retrieves whether or not the packet should be cancelled.
-	 * @return TRUE if it should be cancelled, FALSE otherwise.
-	 */
-	public boolean isCancelled() {
-		return cancel;
-	}
-
-	/**
-	 * Sets whether or not the packet should be cancelled.
-	 * @param cancel - TRUE if it should be cancelled, FALSE otherwise.
-	 */
-	public void setCancelled(boolean cancel) {
-		this.cancel = cancel;
-	}
-
-	/**
-	 * Retrieves the player that has sent the packet or is recieving it.
-	 * @return The player associated with this event.
-	 */
-	public Player getPlayer() {
-		return player;
-	}
-	
-	/**
-	 * Whether or not this packet was created by the server.
-	 * <p>
-	 * Most listeners can deduce this by noting which listener method was invoked.
-	 * @return TRUE if the packet was created by the server, FALSE if it was created by a client.
-	 */
-	public boolean isServerPacket() {
-		return serverPacket;
-	}
-	
-	/**
-	 * Retrieve the asynchronous marker.
-	 * <p>
-	 * If the packet is synchronous, this marker will be used to schedule an asynchronous event. In the following
-	 * asynchronous event, the marker is used to correctly pass the packet around to the different threads.
-	 * <p>
-	 * Note that if there are no asynchronous events that can receive this packet, the marker is NULL.
-	 * @return The current asynchronous marker, or NULL.
-	 */
-	public AsyncMarker getAsyncMarker() {
-		return asyncMarker;
-	}
-	/**
-	 * Set the asynchronous marker. 
-	 * <p>
-	 * If the marker is non-null at the end of an synchronous event processing, the packet will be scheduled
-	 * to be processed asynchronously with the given settings.
-	 * <p>
-	 * Note that if there are no asynchronous events that can receive this packet, the marker should be NULL. 
-	 * @param asyncMarker - the new asynchronous marker, or NULL.
-	 * @throws IllegalStateException If the current event is asynchronous.
-	 */
-	public void setAsyncMarker(AsyncMarker asyncMarker) {
-		if (isAsynchronous())
-			throw new IllegalStateException("The marker is immutable for asynchronous events");
-		this.asyncMarker = asyncMarker;
-	}
-
-	/**
-	 * Determine if the packet event has been executed asynchronously or not.
-	 * @return TRUE if this packet event is asynchronous, FALSE otherwise.
-	 */
-	public boolean isAsynchronous() {
-		return asynchronous;
-	}
-	
-	private void writeObject(ObjectOutputStream output) throws IOException {
-	    // Default serialization 
-		output.defaultWriteObject();
-
-		// Write the name of the player (or NULL if it's not set)
-		output.writeObject(player != null ? new SerializedOfflinePlayer(player) : null);
-	}
-
-	private void readObject(ObjectInputStream input) throws ClassNotFoundException, IOException {
-	    // Default deserialization
-		input.defaultReadObject();
-
-		final SerializedOfflinePlayer offlinePlayer = (SerializedOfflinePlayer) input.readObject();
-		
-	    if (offlinePlayer != null) {
-	    	// Better than nothing
-	    	player = offlinePlayer.getPlayer();
-	    }
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/EntityUtilities.java

@@ -1,190 +0,0 @@
-package com.comphenix.protocol.injector;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.List;
-import java.util.Set;
-
-import org.bukkit.World;
-import org.bukkit.craftbukkit.CraftWorld;
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.Player;
-
-import com.comphenix.protocol.injector.PacketConstructor.BukkitUnwrapper;
-import com.comphenix.protocol.reflect.FieldAccessException;
-import com.comphenix.protocol.reflect.FieldUtils;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-import com.google.common.collect.Lists;
-
-/**
- * Used to perform certain operations on entities.
- * 
- * @author Kristian
- */
-class EntityUtilities {
-
-	private static Field entityTrackerField;
-	private static Field trackedEntitiesField;
-	private static Field trackedPlayersField;
-	
-	private static Method hashGetMethod;
-	private static Method scanPlayersMethod;
-	
-	/*
-	 * While this function may look pretty bad, it's essentially just a reflection-warped 
-	 * version of the following:
-	 * 
-	 *  	@SuppressWarnings("unchecked")
-	 *	 	public static void updateEntity2(Entity entity, List<Player> observers) {
-	 *
-	 *			World world = entity.getWorld();
-	 *			WorldServer worldServer = ((CraftWorld) world).getHandle();
-	 *
-	 *			EntityTracker tracker = worldServer.tracker;
-	 *			EntityTrackerEntry entry = (EntityTrackerEntry) tracker.trackedEntities.get(entity.getEntityId());
-	 *
-	 *			List<EntityPlayer> nmsPlayers = getNmsPlayers(observers);
-	 *
-	 *			entry.trackedPlayers.removeAll(nmsPlayers);
-	 *			entry.scanPlayers(nmsPlayers);
-	 *		}
-	 *
-	 *		private static List<EntityPlayer> getNmsPlayers(List<Player> players) {
-	 *			List<EntityPlayer> nsmPlayers = new ArrayList<EntityPlayer>();
-	 *	
-	 *			for (Player bukkitPlayer : players) {
-	 *				CraftPlayer craftPlayer = (CraftPlayer) bukkitPlayer;
-	 *				nsmPlayers.add(craftPlayer.getHandle());
-	 *			}
-	 *	
-	 *			return nsmPlayers;
-	 *		}
-	 *
-	 */
-	public static void updateEntity(Entity entity, List<Player> observers) throws FieldAccessException {
-		
-		World world = entity.getWorld();
-		Object worldServer = ((CraftWorld) world).getHandle();
-
-		// We have to rely on the class naming here.
-		if (entityTrackerField == null)
-			entityTrackerField = FuzzyReflection.fromObject(worldServer).getFieldByType(".*Tracker");
-		
-		// Get the tracker
-		Object tracker = null;
-		
-		try {
-			tracker = FieldUtils.readField(entityTrackerField, worldServer, false);
-		} catch (IllegalAccessException e) {
-			throw new FieldAccessException("Cannot access 'tracker' field due to security limitations.", e);
-		}
-		
-		if (trackedEntitiesField == null) {
-			@SuppressWarnings("rawtypes")
-			Set<Class> ignoredTypes = new HashSet<Class>();
-			
-			// Well, this is more difficult. But we're looking for a Minecraft object that is not 
-			// created by the constructor(s).
-			for (Constructor<?> constructor : tracker.getClass().getConstructors()) {
-				for (Class<?> type : constructor.getParameterTypes()) {
-					ignoredTypes.add(type);
-				}
-			}
-			
-			// The Minecraft field that's NOT filled in by the constructor
-			trackedEntitiesField = FuzzyReflection.fromObject(tracker, true).
-						getFieldByType(FuzzyReflection.MINECRAFT_OBJECT, ignoredTypes);
-		}
-		
-		// Read the entity hashmap
-		Object trackedEntities = null;
-
-		try {
-			trackedEntities = FieldUtils.readField(trackedEntitiesField, tracker, true);
-		} catch (IllegalAccessException e) {
-			throw new FieldAccessException("Cannot access 'trackedEntities' field due to security limitations.", e);
-		}
-		
-		// Getting the "get" method is pretty hard, but first - try to just get it by name
-		if (hashGetMethod == null) {
-			
-			Class<?> type = trackedEntities.getClass();
-			
-			try {
-				hashGetMethod = type.getMethod("get", int.class);
-			} catch (NoSuchMethodException e) {
-			
-				Class<?>[] params = { int.class };
-				
-				// Then it's probably the lowest named method that takes an int-parameter
-				for (Method method : type.getMethods()) {
-					if (Arrays.equals(params, method.getParameterTypes())) {
-						if (hashGetMethod == null ||
-							method.getName().compareTo(hashGetMethod.getName()) < 0) {
-							hashGetMethod = method;
-						}
-					}
-				}
-			}
-		}
-	
-		try {
-			//EntityTrackerEntry trackEntity = (EntityTrackerEntry) tracker.trackedEntities.get(entity.getEntityId());
-			 Object trackerEntry = hashGetMethod.invoke(trackedEntities, entity.getEntityId());
-
-			if (trackedPlayersField == null) {
-				// This one is fairly easy
-				trackedPlayersField = FuzzyReflection.fromObject(trackerEntry).getFieldByType("java\\.util\\..*");
-			}
-			
-			// Phew, finally there.
-			Collection<?> trackedPlayers = (Collection<?>) FieldUtils.readField(trackedPlayersField, trackerEntry, false);
-			List<Object> nmsPlayers = unwrapBukkit(observers);
-			
-			// trackEntity.trackedPlayers.clear();
-			trackedPlayers.removeAll(nmsPlayers);
-			
-			// We have to rely on a NAME once again. Damn it.
-			if (scanPlayersMethod == null) {
-				scanPlayersMethod = trackerEntry.getClass().getMethod("scanPlayers", List.class);
-			}
-			
-			//trackEntity.scanPlayers(server.players);
-			scanPlayersMethod.invoke(trackerEntry, nmsPlayers);
-			
-		} catch (IllegalArgumentException e) {
-			throw e;
-		} catch (IllegalAccessException e) {
-			throw new FieldAccessException("Security limitation prevents access to 'get' method in IntHashMap", e);
-		} catch (InvocationTargetException e) {
-			throw new RuntimeException("Exception occurred in Minecraft.", e);
-		} catch (SecurityException e) {
-			throw new FieldAccessException("Security limitation prevents access to 'scanPlayers' method in trackerEntry.", e);
-		} catch (NoSuchMethodException e) {
-			throw new FieldAccessException("Canot find 'scanPlayers' method. Is ProtocolLib up to date?", e);
-		}
-	}
-	
-	private static List<Object> unwrapBukkit(List<Player> players) {
-		
-		List<Object> output = Lists.newArrayList();
-		BukkitUnwrapper unwrapper = new BukkitUnwrapper();
-		
-		// Get the NMS equivalent
-		for (Player player : players) {
-			Object result = unwrapper.unwrapItem(player);
-			
-			if (result != null)
-				output.add(result);
-			else
-				throw new IllegalArgumentException("Cannot unwrap item " + player);
-		}
-		
-		return output;
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/InjectedArrayList.java

@@ -1,115 +0,0 @@
-package com.comphenix.protocol.injector;
-
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.ArrayList;
-import java.util.Set;
-
-import net.minecraft.server.Packet;
-import net.sf.cglib.proxy.Enhancer;
-import net.sf.cglib.proxy.MethodInterceptor;
-import net.sf.cglib.proxy.MethodProxy;
-
-import com.comphenix.protocol.injector.NetworkFieldInjector.FakePacket;
-
-/**
- * The array list that notifies when packets are sent by the server.
- * 
- * @author Kristian
- */
-class InjectedArrayList extends ArrayList<Packet> {
-
-	/**
-	 * Silly Eclipse.
-	 */
-	private static final long serialVersionUID = -1173865905404280990L;
-	
-	private PlayerInjector injector;
-	private Set<Packet> ignoredPackets;
-	private ClassLoader classLoader;
-	
-	public InjectedArrayList(ClassLoader classLoader, PlayerInjector injector, Set<Packet> ignoredPackets) {
-		this.classLoader = classLoader;
-		this.injector = injector;
-		this.ignoredPackets = ignoredPackets;
-	}
-
-	@Override
-	public boolean add(Packet packet) {
-
-		Packet result = null;
-		
-		// Check for fake packets and ignored packets
-		if (packet instanceof FakePacket) {
-			return true;
-		} else if (ignoredPackets.contains(packet)) {
-			ignoredPackets.remove(packet);
-		} else {
-			result = injector.handlePacketRecieved(packet);
-		}
-		
-		// A NULL packet indicate cancelling
-		try {
-			if (result != null) {
-				super.add(result);
-			} else {
-				// We'll use the FakePacket marker instead of preventing the filters
-				injector.sendServerPacket(createNegativePacket(packet), true);
-			}
-			
-			// Collection.add contract
-			return true;
-			
-		} catch (InvocationTargetException e) {
-			throw new RuntimeException("Reverting cancelled packet failed.", e.getTargetException());
-		}
-	}
-	
-	/**
-	 * Used by a hack that reverses the effect of a cancelled packet. Returns a packet
-	 * whereby every int method's return value is inverted (a => -a).
-	 * 
-	 * @param source - packet to invert.
-	 * @return The inverted packet.
-	 */
-	Packet createNegativePacket(Packet source) {
-		Enhancer ex = new Enhancer();
-		Class<?> type = source.getClass();
-		
-		// We want to subtract the byte amount that were added to the running
-		// total of outstanding packets. Otherwise, cancelling too many packets
-		// might cause a "disconnect.overflow" error.
-		//
-		// We do that by constructing a special packet of the same type that returns 
-		// a negative integer for all zero-parameter integer methods. This includes the
-		// size() method, which is used by the queue method to count the number of
-		// bytes to add.
-		//
-		// Essentially, we have:
-		//
-		//   public class NegativePacket extends [a packet] {
-		//      @Override
-		//      public int size() {
-		//         return -super.size();
-		//      }
-		//   ect.
-		//   }
-		ex.setInterfaces(new Class[] { FakePacket.class } );
-		ex.setUseCache(true);
-		ex.setClassLoader(classLoader);
-		ex.setSuperclass(type);
-		ex.setCallback(new MethodInterceptor() {
-			@Override
-			public Object intercept(Object obj, Method method, Object[] args, MethodProxy proxy) throws Throwable {
-				if (method.getReturnType().equals(int.class) && args.length == 0) {
-					Integer result = (Integer) proxy.invokeSuper(obj, args);
-					return -result;
-				} else {
-					return proxy.invokeSuper(obj, args);
-				}
-			}
-		});
-		
-		return (Packet) ex.create();
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/InjectedServerConnection.java

@@ -1,189 +0,0 @@
-package com.comphenix.protocol.injector;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import org.bukkit.Server;
-
-import com.comphenix.protocol.reflect.FieldUtils;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-import com.comphenix.protocol.reflect.VolatileField;
-
-/**
- * Used to ensure that the 1.3 server is referencing the correct server handler.
- * 
- * @author Kristian
- */
-class InjectedServerConnection {
-	
-	private static Field listenerThreadField;
-	private static Field minecraftServerField;
-	private static Method serverConnectionMethod;
-	private static Field listField;
-	
-	private List<VolatileField> listFields;
-	private List<ReplacedArrayList<Object>> replacedLists;
-	
-	private Server server;
-	private Logger logger;
-	private boolean hasAttempted;
-	private boolean hasSuccess;
-	
-	private Object minecraftServer = null;
-	
-	public InjectedServerConnection(Logger logger, Server server) {
-		this.listFields = new ArrayList<VolatileField>();
-		this.replacedLists = new ArrayList<ReplacedArrayList<Object>>();
-		this.logger = logger;
-		this.server = server;
-	}
-
-	public void injectList() {
-
-		// Only execute this method once
-		if (!hasAttempted)
-			hasAttempted = true;
-		else
-			return;
-		
-		if (minecraftServerField == null)
-			minecraftServerField = FuzzyReflection.fromObject(server, true).getFieldByType(".*MinecraftServer");
-
-		try {
-			minecraftServer = FieldUtils.readField(minecraftServerField, server, true);
-		} catch (IllegalAccessException e1) {
-			logger.log(Level.WARNING, "Cannot extract minecraft server from Bukkit.");
-			return;
-		}
-		
-		try {
-			if (serverConnectionMethod == null)
-				serverConnectionMethod = FuzzyReflection.fromClass(minecraftServerField.getType()).
-											getMethodByParameters("getServerConnection", ".*ServerConnection", new String[] {});
-			// We're using Minecraft 1.3.1
-			injectServerConnection();
-		
-		} catch (RuntimeException e) {
-			
-			// Minecraft 1.2.5 or lower
-			injectListenerThread();
-		}
-	}
-	
-	private void injectListenerThread() {
-	
-		try {
-		
-		if (listenerThreadField == null)
-			listenerThreadField = FuzzyReflection.fromClass(minecraftServerField.getType()).
-				getFieldByType(".*NetworkListenThread");
-		} catch (RuntimeException e) {
-			logger.log(Level.SEVERE, "Cannot find listener thread in MinecraftServer.");
-			return;
-		}
-
-		Object listenerThread = null;
-		
-		// Attempt to get the thread
-		try {
-			listenerThread = listenerThreadField.get(minecraftServer);
-		} catch (Exception e) {
-			logger.log(Level.WARNING, "Unable to read the listener thread.");
-			return;
-		}
-		
-		// Ok, great. Get every list field
-		List<Field> lists = FuzzyReflection.fromClass(listenerThreadField.getType()).getFieldListByType(List.class);
-		
-		for (Field list : lists) {
-			injectIntoList(listenerThread, list);
-		}
-		
-		hasSuccess = true;
-	}
-	
-	private void injectServerConnection() {
-		
-		Object serverConnection = null;
-		
-		// Careful - we might fail
-		try {
-			serverConnection = serverConnectionMethod.invoke(minecraftServer);
-		} catch (Exception ex) {
-			logger.log(Level.WARNING, "Unable to retrieve server connection", ex);
-			return;
-		}
-		
-		if (listField == null)
-			listField = FuzzyReflection.fromClass(serverConnectionMethod.getReturnType(), true).
-							getFieldByType("serverConnection", List.class);
-		injectIntoList(serverConnection, listField);
-		hasSuccess = true;
-	}
-	
-	@SuppressWarnings("unchecked")
-	private void injectIntoList(Object instance, Field field) {
-		VolatileField listFieldRef = new VolatileField(listField, instance, true);
-		List<Object> list = (List<Object>) listFieldRef.getValue();
-
-		// Careful not to inject twice
-		if (list instanceof ReplacedArrayList) {
-			replacedLists.add((ReplacedArrayList<Object>) list);
-		} else {
-			replacedLists.add(new ReplacedArrayList<Object>(list));
-			listFieldRef.setValue(replacedLists.get(0));
-			listFields.add(listFieldRef);
-		}
-	}
-	
-	/**
-	 * Replace the server handler instance kept by the "keep alive" object.
-	 * @param oldHandler - old server handler.
-	 * @param newHandler - new, proxied server handler.
-	 */
-	public void replaceServerHandler(Object oldHandler, Object newHandler) {
-		if (!hasAttempted) {
-			injectList();
-		}
-		
-		if (hasSuccess) {
-			for (ReplacedArrayList<Object> replacedList : replacedLists) {
-				replacedList.addMapping(oldHandler, newHandler);
-			}
-		}
-	}
-	
-	/**
-	 * Revert to the old vanilla server handler, if it has been replaced.
-	 * @param oldHandler - old vanilla server handler.
-	 */
-	public void revertServerHandler(Object oldHandler) {
-		if (hasSuccess) {
-			for (ReplacedArrayList<Object> replacedList : replacedLists) {
-				replacedList.removeMapping(oldHandler);
-			}
-		}
-	}
-	
-	/**
-	 * Undoes everything.
-	 */
-	public void cleanupAll() {
-		if (replacedLists.size() > 0) {
-			// Repair the underlying lists
-			for (ReplacedArrayList<Object> replacedList : replacedLists) {
-				replacedList.revertAll();
-			}
-			for (VolatileField field : listFields) {
-				field.revertValue();
-			}
-			
-			listFields.clear();
-			replacedLists.clear();
-		}
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/MinecraftRegistry.java

@@ -1,104 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.injector;
-
-import java.lang.reflect.Field;
-import java.util.HashMap;
-import java.util.Map;
-
-import net.minecraft.server.Packet;
-
-import com.comphenix.protocol.reflect.FieldUtils;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-import com.google.common.base.Objects;
-
-/**
- * Static registries in Minecraft.
- * 
- * @author Kristian
- */
-@SuppressWarnings("rawtypes")
-class MinecraftRegistry {
-
-	// The packet class to packet ID translator
-	private static Map<Class, Integer> packetToID;
-	
-	// New proxy values
-	private static Map<Integer, Class> overwrittenPackets = new HashMap<Integer, Class>();
-	
-	// Vanilla packets
-	private static Map<Integer, Class> previousValues = new HashMap<Integer, Class>();
-	
-	@SuppressWarnings({ "unchecked" })
-	public static Map<Class, Integer> getPacketToID() {
-		// Initialize it, if we haven't already
-		if (packetToID == null) {
-			try {
-				Field packetsField = FuzzyReflection.fromClass(Packet.class, true).getFieldByType("packetsField", Map.class);
-				packetToID = (Map<Class, Integer>) FieldUtils.readStaticField(packetsField, true);
-				
-			} catch (IllegalAccessException e) {
-				throw new RuntimeException("Unable to retrieve the packetClassToIdMap", e);
-			}
-		}
-		
-		return packetToID;
-	}
-	
-	public static Map<Integer, Class> getOverwrittenPackets() {
-		return overwrittenPackets;
-	}
-	
-	public static Map<Integer, Class> getPreviousPackets() {
-		return previousValues;
-	}
-	
-	/**
-	 * Retrieves the correct packet class from a given packet ID.
-	 * @param packetID - the packet ID.
-	 * @return The associated class.
-	 */
-	public static Class getPacketClassFromID(int packetID) {
-		return getPacketClassFromID(packetID, false);
-	}
-	
-	/**
-	 * Retrieves the correct packet class from a given packet ID.
-	 * @param packetID - the packet ID.
- 	 * @param vanilla - whether or not to look for vanilla classes, not injected classes.
-	 * @return The associated class.
-	 */
-	public static Class getPacketClassFromID(int packetID, boolean forceVanilla) {
-		
-		Map<Integer, Class> lookup = forceVanilla ? previousValues : overwrittenPackets;
-		
-		// Optimized lookup
-		if (lookup.containsKey(packetID)) {
-			return lookup.get(packetID);
-		}
-
-		// Will most likely not be used
-		for (Map.Entry<Class, Integer> entry : getPacketToID().entrySet()) {
-			if (Objects.equal(entry.getValue(), packetID)) {
-				return entry.getKey();
-			}
-		}
-		
-		throw new IllegalArgumentException("The packet ID " + packetID + " is not registered.");
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/NetworkFieldInjector.java

@@ -1,157 +0,0 @@
-package com.comphenix.protocol.injector;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-
-import org.bukkit.entity.Player;
-
-import com.comphenix.protocol.Packets;
-import com.comphenix.protocol.events.ListeningWhitelist;
-import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.reflect.FieldUtils;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-import com.comphenix.protocol.reflect.StructureModifier;
-import com.comphenix.protocol.reflect.VolatileField;
-import com.google.common.collect.Sets;
-
-import net.minecraft.server.Packet;
-
-/**
- * Injection hook that overrides the packet queue lists in NetworkHandler.
- * 
- * @author Kristian
- */
-class NetworkFieldInjector extends PlayerInjector {
-
-	/**
-	 * Marker interface that indicates a packet is fake and should not be processed.
-	 * @author Kristian
-	 */
-	public interface FakePacket {
-		// Nothing
-	}
-	
-	// Packets to ignore
-	private Set<Packet> ignoredPackets = Sets.newSetFromMap(new ConcurrentHashMap<Packet, Boolean>());
-	
-	// Overridden fields
-	private List<VolatileField> overridenLists = new ArrayList<VolatileField>();
-	
-	// Sync field
-	private static Field syncField;
-	private Object syncObject;
-	
-	public NetworkFieldInjector(Player player, PacketFilterManager manager, Set<Integer> sendingFilters) throws IllegalAccessException {
-		super(player, manager, sendingFilters);
-	}
-	
-	@Override
-	protected synchronized void initialize() throws IllegalAccessException {
-		super.initialize();
-	
-		// Get the sync field as well
-		if (hasInitialized) {
-			if (syncField == null)
-				syncField = FuzzyReflection.fromObject(networkManager, true).getFieldByType("java\\.lang\\.Object");
-			syncObject = FieldUtils.readField(syncField, networkManager, true);
-		}
-	}
-
-	@Override
-	public void sendServerPacket(Packet packet, boolean filtered) throws InvocationTargetException {
-		
-		if (networkManager != null) {
-			try {
-				if (!filtered) {
-					ignoredPackets.add(packet);
-				}
-				
-				// Note that invocation target exception is a wrapper for a checked exception
-				queueMethod.invoke(networkManager, packet);
-				
-			} catch (IllegalArgumentException e) {
-				throw e;
-			} catch (InvocationTargetException e) {
-				throw e;
-			} catch (IllegalAccessException e) {
-				throw new IllegalStateException("Unable to access queue method.", e);
-			}
-		} else {
-			throw new IllegalStateException("Unable to load network mananager. Cannot send packet.");
-		}
-	}
-	
-	@Override
-	public void checkListener(PacketListener listener) {
-		// Unfortunately, we don't support chunk packets
-		if (ListeningWhitelist.containsAny(listener.getSendingWhitelist(), 
-				Packets.Server.MAP_CHUNK, Packets.Server.MAP_CHUNK_BULK)) {
-			throw new IllegalStateException("The NETWORK_FIELD_INJECTOR hook doesn't support map chunk listeners.");
-		}
-	}
-	
-	@Override
-	public void injectManager() {
-		
-		if (networkManager != null) {
-
-			@SuppressWarnings("rawtypes")
-			StructureModifier<List> list = networkModifier.withType(List.class);
-
-			// Subclass both send queues
-			for (Field field : list.getFields()) {
-				VolatileField overwriter = new VolatileField(field, networkManager, true);
-				
-				@SuppressWarnings("unchecked")
-				List<Packet> minecraftList = (List<Packet>) overwriter.getOldValue();
-				
-				synchronized(syncObject) {
-					// The list we'll be inserting
-					List<Packet> hackedList = new InjectedArrayList(manager.getClassLoader(), this, ignoredPackets);
-					
-					// Add every previously stored packet
-					for (Packet packet : minecraftList) {
-						hackedList.add(packet);
-					}
-					
-					// Don' keep stale packets around
-					minecraftList.clear();
-					overwriter.setValue(Collections.synchronizedList(hackedList));
-				}
-				
-				overridenLists.add(overwriter);
-			}
-		}
-	}
-	
-	@SuppressWarnings("unchecked")
-	public void cleanupAll() {
-		// Clean up
-		for (VolatileField overriden : overridenLists) {
-			List<Packet> minecraftList = (List<Packet>) overriden.getOldValue();
-			List<Packet> hacketList = (List<Packet>) overriden.getValue();
-			
-			if (minecraftList == hacketList) {
-				return;
-			}
-	
-			// Get a lock before we modify the list
-			synchronized(syncObject) {
-				try {
-					// Copy over current packets
-					for (Packet packet : (List<Packet>) overriden.getValue()) {
-						minecraftList.add(packet);
-					}
-				} finally {
-					overriden.revertValue();
-				}
-			}
-		}
-		overridenLists.clear();
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/NetworkObjectInjector.java

@@ -1,110 +0,0 @@
-package com.comphenix.protocol.injector;
-
-import java.lang.reflect.InvocationTargetException;
-
-import net.minecraft.server.Packet;
-
-import java.lang.reflect.InvocationHandler;
-import java.lang.reflect.Proxy;
-import java.lang.reflect.Method;
-import java.util.Set;
-
-import org.bukkit.entity.Player;
-
-import com.comphenix.protocol.Packets;
-import com.comphenix.protocol.events.ListeningWhitelist;
-import com.comphenix.protocol.events.PacketListener;
-
-/**
- * Injection method that overrides the NetworkHandler itself, and it's sendPacket-method.
- * 
- * @author Kristian
- */
-class NetworkObjectInjector extends PlayerInjector {
-	public NetworkObjectInjector(Player player, PacketFilterManager manager, Set<Integer> sendingFilters) throws IllegalAccessException {
-		super(player, manager, sendingFilters);
-	}
-
-	@Override
-	public void sendServerPacket(Packet packet, boolean filtered) throws InvocationTargetException {
-		Object networkDelegate = filtered ? networkManagerRef.getValue() : networkManagerRef.getOldValue();
-		
-		if (networkDelegate != null) {
-			try {
-				// Note that invocation target exception is a wrapper for a checked exception
-				queueMethod.invoke(networkDelegate, packet);
-				
-			} catch (IllegalArgumentException e) {
-				throw e;
-			} catch (InvocationTargetException e) {
-				throw e;
-			} catch (IllegalAccessException e) {
-				throw new IllegalStateException("Unable to access queue method.", e);
-			}
-		} else {
-			throw new IllegalStateException("Unable to load network mananager. Cannot send packet.");
-		}
-	}
-	
-	@Override
-	public void checkListener(PacketListener listener) {
-		// Unfortunately, we don't support chunk packets
-		if (ListeningWhitelist.containsAny(listener.getSendingWhitelist(), 
-				Packets.Server.MAP_CHUNK, Packets.Server.MAP_CHUNK_BULK)) {
-			throw new IllegalStateException("The NETWORK_FIELD_INJECTOR hook doesn't support map chunk listeners.");
-		}
-	}
-	
-	@Override
-	public void injectManager() {
-		
-		if (networkManager != null) {
-			final Class<?> networkInterface = networkManagerField.getType();
-			final Object networkDelegate = networkManagerRef.getOldValue();
-			
-			if (!networkInterface.isInterface()) {
-				throw new UnsupportedOperationException(
-						"Must use CraftBukkit 1.3.0 or later to inject into into NetworkMananger.");
-			}
-			
-			// Create our proxy object
-			Object networkProxy = Proxy.newProxyInstance(networkInterface.getClassLoader(), 
-					new Class<?>[] { networkInterface }, new InvocationHandler() {
-				
-				@Override
-				public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
-					// OH OH! The queue method!
-					if (method.equals(queueMethod)) {
-						Packet packet = (Packet) args[0];
-						
-						if (packet != null) {
-							packet = handlePacketRecieved(packet);
-							
-							// A NULL packet indicate cancelling
-							if (packet != null)
-								args[0] = packet;
-							else
-								return null;
-						}
-					}
-					
-					// Delegate to our underlying class
-					try {
-						return method.invoke(networkDelegate, args);
-					} catch (InvocationTargetException e) {
-						throw e.getCause();
-					}
-				}
-			});
-		
-			// Inject it, if we can.
-			networkManagerRef.setValue(networkProxy);
-		}
-	}
-	
-	@Override
-	public void cleanupAll() {
-		// Clean up
-		networkManagerRef.revertValue();
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/NetworkServerInjector.java

@@ -1,181 +0,0 @@
-package com.comphenix.protocol.injector;
-
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.Set;
-
-import net.minecraft.server.Packet;
-import net.sf.cglib.proxy.Enhancer;
-import net.sf.cglib.proxy.Factory;
-import net.sf.cglib.proxy.MethodInterceptor;
-import net.sf.cglib.proxy.MethodProxy;
-
-import org.bukkit.entity.Player;
-
-import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.reflect.FieldAccessException;
-import com.comphenix.protocol.reflect.FieldUtils;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-import com.comphenix.protocol.reflect.StructureModifier;
-import com.comphenix.protocol.reflect.instances.CollectionGenerator;
-import com.comphenix.protocol.reflect.instances.DefaultInstances;
-import com.comphenix.protocol.reflect.instances.ExistingGenerator;
-import com.comphenix.protocol.reflect.instances.PrimitiveGenerator;
-
-/**
- * Represents a player hook into the NetServerHandler class. 
- * 
- * @author Kristian
- */
-public class NetworkServerInjector extends PlayerInjector {
-
-	private static Method sendPacketMethod;
-
-	private StructureModifier<Object> serverHandlerModifier;
-	private InjectedServerConnection serverInjection;
-	
-	public NetworkServerInjector(Player player, PacketFilterManager manager, 
-								 Set<Integer> sendingFilters, InjectedServerConnection serverInjection) throws IllegalAccessException {
-		super(player, manager, sendingFilters);
-		this.serverInjection = serverInjection;
-	}
-	
-	@Override
-	protected void initialize() throws IllegalAccessException {
-		super.initialize();
-		
-		// Get the send packet method!
-		if (hasInitialized) {
-			if (sendPacketMethod == null)
-				sendPacketMethod = FuzzyReflection.fromObject(serverHandler).getMethodByName("sendPacket.*");
-			if (serverHandlerModifier == null)
-				serverHandlerModifier = new StructureModifier<Object>(serverHandler.getClass(), null, false);
-		}
-	}
-
-	@Override
-	public void sendServerPacket(Packet packet, boolean filtered) throws InvocationTargetException {
-		Object serverDeleage = filtered ? serverHandlerRef.getValue() : serverHandlerRef.getOldValue();
-		
-		if (serverDeleage != null) {
-			try {
-				// Note that invocation target exception is a wrapper for a checked exception
-				sendPacketMethod.invoke(serverDeleage, packet);
-				
-			} catch (IllegalArgumentException e) {
-				throw e;
-			} catch (InvocationTargetException e) {
-				throw e;
-			} catch (IllegalAccessException e) {
-				throw new IllegalStateException("Unable to access send packet method.", e);
-			}
-		} else {
-			throw new IllegalStateException("Unable to load server handler. Cannot send packet.");
-		}
-	}
-
-	@Override
-	public void injectManager() {
-		
-		if (serverHandlerRef == null)
-			throw new IllegalStateException("Cannot find server handler.");
-		// Don't inject twice
-		if (serverHandlerRef.getValue() instanceof Factory)
-			return;
-		
-		Class<?> serverClass = serverHandler.getClass();
-		
-		Enhancer ex = new Enhancer();
-		ex.setClassLoader(manager.getClassLoader());
-		ex.setSuperclass(serverClass);
-		ex.setCallback(new MethodInterceptor() {
-			@Override
-			public Object intercept(Object obj, Method method, Object[] args, MethodProxy proxy) throws Throwable {
-				
-				// The send packet method!
-				if (method.equals(sendPacketMethod)) {
-					Packet packet = (Packet) args[0];
-					
-					if (packet != null) {
-						packet = handlePacketRecieved(packet);
-						
-						// A NULL packet indicate cancelling
-						if (packet != null)
-							args[0] = packet;
-						else
-							return null;
-					}
-				}
-				
-				// Call the method directly
-				return proxy.invokeSuper(obj, args);
-			}
-		});
-		
-		// Use the existing field values when we create our copy
-		DefaultInstances serverInstances = DefaultInstances.fromArray(
-				ExistingGenerator.fromObjectFields(serverHandler),
-				PrimitiveGenerator.INSTANCE, 
-				CollectionGenerator.INSTANCE);
-
-		Object proxyObject = serverInstances.forEnhancer(ex).getDefault(serverClass);
-		serverInjection.replaceServerHandler(serverHandler, proxyObject);
-		
-		// Inject it now
-		if (proxyObject != null) {
-			copyTo(serverHandler, proxyObject);
-			serverHandlerRef.setValue(proxyObject);
-		} else {
-			throw new RuntimeException(
-					"Cannot hook player: Unable to find a valid constructor for the NetServerHandler object.");
-		}
-	}
-	
-	/**
-	 * Copy every field in server handler A to server handler B.
-	 * @param source - fields to copy.
-	 * @param destination - fields to copy to.
-	 */
-	private void copyTo(Object source, Object destination) {
-		StructureModifier<Object> modifierSource = serverHandlerModifier.withTarget(source);
-		StructureModifier<Object> modifierDest = serverHandlerModifier.withTarget(destination);
-		
-		// Copy every field
-		try {
-			for (int i = 0; i < modifierSource.size(); i++) {
-					modifierDest.write(i, modifierSource.read(i));
-			}
-		} catch (FieldAccessException e) {
-			throw new RuntimeException("Unable to copy fields from NetServerHandler.", e);
-		}
-	}
-	
-	@Override
-	public void cleanupAll() {
-		if (serverHandlerRef != null && serverHandlerRef.isCurrentSet()) {
-			copyTo(serverHandlerRef.getValue(), serverHandlerRef.getOldValue());
-			serverHandlerRef.revertValue();
-		}
-		
-		serverInjection.revertServerHandler(serverHandler);
-		
-		try {
-			if (getNetHandler() != null) {
-				// Restore packet listener
-				try {
-					FieldUtils.writeField(netHandlerField, networkManager, serverHandlerRef.getOldValue(), true);
-				} catch (IllegalAccessException e) {
-					// Oh well
-					e.printStackTrace();
-				}
-			}
-		} catch (IllegalAccessException e) {
-			e.printStackTrace();
-		}
-	}
-	
-	@Override
-	public void checkListener(PacketListener listener) {
-		// We support everything
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/PacketConstructor.java

@@ -1,231 +0,0 @@
-package com.comphenix.protocol.injector;
-
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-
-import net.minecraft.server.Packet;
-
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.reflect.FieldAccessException;
-import com.google.common.collect.ImmutableList;
-import com.google.common.collect.Lists;
-
-/**
- * A packet constructor that uses an internal Minecraft.
- * @author Kristian
- *
- */
-public class PacketConstructor {
-
-	/**
-	 * A packet constructor that automatically converts Bukkit types to their NMS conterpart. 
-	 * <p>
-	 * Remember to call withPacket().
-	 */
-	public static PacketConstructor DEFAULT = new PacketConstructor(null);
-	
-	// The constructor method that's actually responsible for creating the packet
-	private Constructor<?> constructorMethod;
-	
-	// The packet ID
-	private int packetID;
-	
-	// Used to unwrap Bukkit objects
-	private List<Unwrapper> unwrappers;
-	
-	private PacketConstructor(Constructor<?> constructorMethod) {
-		this.constructorMethod = constructorMethod;
-		this.unwrappers = Lists.newArrayList((Unwrapper) new BukkitUnwrapper());
-	}
-	
-	private PacketConstructor(int packetID, Constructor<?> constructorMethod, List<Unwrapper> unwrappers) {
-		this.packetID = packetID;
-		this.constructorMethod = constructorMethod;
-		this.unwrappers = unwrappers;
-	}
-	
-	public ImmutableList<Unwrapper> getUnwrappers() {
-		return ImmutableList.copyOf(unwrappers);
-	}
-	
-	/**
-	 * Retrieve the id of the packets this constructor creates.
-	 * @return The ID of the packets this constructor will create.
-	 */
-	public int getPacketID() {
-		return packetID;
-	}
-	
-	/**
-	 * Return a copy of the current constructor with a different list of unwrappers.
-	 * @param unwrappers - list of unwrappers that convert Bukkit wrappers into the equivalent NMS classes.
-	 * @return A constructor with a different set of unwrappers.
-	 */
-	public PacketConstructor withUnwrappers(List<Unwrapper> unwrappers) {
-		return new PacketConstructor(packetID, constructorMethod, unwrappers);
-	}
-
-	/**
-	 * Create a packet constructor that creates packets using the given types.
-	 * @param id - packet ID.
-	 * @param types - types to create.
-	 * @return A packet constructor with these types.
-	 * @throws IllegalArgumentException If no packet constructor could be created with these types.
-	 */
-	public PacketConstructor withPacket(int id, Object[] values) {
-		
-		Class<?>[] types = new Class<?>[values.length];
-		
-		for (int i = 0; i < types.length; i++) {
-			// Default type
-			if (values[i] != null) {
-				types[i] = values[i].getClass();
-				
-				for (Unwrapper unwrapper : unwrappers) {
-					Object result = unwrapper.unwrapItem(values[i]);
-					
-					// Update type we're searching for
-					if (result != null) {
-						types[i] = result.getClass();
-						break;
-					}
-				}
-			
-			} else {
-				// Try it
-				types[i] = Object.class;
-			}
-		}
-		
-		Class<?> packetType = MinecraftRegistry.getPacketClassFromID(id);
-		
-		if (packetType == null)
-			throw new IllegalArgumentException("Could not find a packet by the id " + id);
-		
-		// Find the correct constructor
-		for (Constructor<?> constructor : packetType.getConstructors()) {
-			Class<?>[] params = constructor.getParameterTypes();
-
-			if (isCompatible(types, params)) {
-				// Right, we've found our type
-				return new PacketConstructor(id, constructor, unwrappers);
-			}
-		}
-		
-		throw new IllegalArgumentException("No suitable constructor could be found.");
-	}
-	
-	/**
-	 * Construct a packet using the special builtin Minecraft constructors.
-	 * @param values - values containing Bukkit wrapped items to pass to Minecraft.
-	 * @return The created packet.
-	 * @throws FieldAccessException Failure due to a security limitation.
-	 * @throws IllegalArgumentException Arguments doesn't match the constructor.
-	 * @throws RuntimeException Minecraft threw an exception.
-	 */
-	public PacketContainer createPacket(Object... values) throws FieldAccessException {
-		
-		try {
-			// Convert types
-			for (int i = 0; i < values.length; i++) {
-				for (Unwrapper unwrapper : unwrappers) {
-					Object converted = unwrapper.unwrapItem(values[i]);
-					
-					if (converted != null) {
-						values[i] = converted;
-						break;
-					}
-				}
-			}
-			
-			Packet nmsPacket = (Packet) constructorMethod.newInstance(values);
-			return new PacketContainer(packetID, nmsPacket);
-			
-		} catch (IllegalArgumentException e) {
-			throw e;
-		} catch (InstantiationException e) {
-			throw new FieldAccessException("Cannot construct an abstract packet.", e);
-		} catch (IllegalAccessException e) {
-			throw new FieldAccessException("Cannot construct packet due to a security limitation.", e);
-		} catch (InvocationTargetException e) {
-			throw new RuntimeException("Minecraft error.", e);
-		}
-	}
-	
-	// Determine if a method with the types 'params' can be called with 'types'
-	private static boolean isCompatible(Class<?>[] types, Class<?>[] params) {
-		
-		// Determine if the types are similar
-		if (params.length == types.length) {
-			for (int i = 0; i < params.length; i++) {
-				if (!params[i].isAssignableFrom(types[i])) {
-					return false;
-				}
-			}
-			
-			return true;
-		}
-		
-		// Parameter count must match
-		return false;
-	}
-
-	public static class BukkitUnwrapper implements Unwrapper {
-	
-		private static Map<Class<?>, Method> cache = new ConcurrentHashMap<Class<?>, Method>();
-	
-		@Override
-		public Object unwrapItem(Object wrappedObject) {
-
-			Class<?> currentClass = wrappedObject.getClass();
-			Method cachedMethod = initializeCache(currentClass);
-			
-			try {
-				// Retrieve the handle
-				if (cachedMethod != null)
-					return cachedMethod.invoke(wrappedObject);
-				else
-					return null;
-				
-			} catch (IllegalArgumentException e) {
-				// Impossible
-				return null;
-			} catch (IllegalAccessException e) {
-				return null;
-			} catch (InvocationTargetException e) {
-				// This is REALLY bad
-				throw new RuntimeException("Minecraft error.", e);
-			}
-		}
-		
-		private Method initializeCache(Class<?> type) {
-			
-			// See if we're already determined this
-			if (cache.containsKey(type)) {
-				// We will never remove from the cache, so this ought to be thread safe
-				return cache.get(type);
-			}
-			
-			try {
-				Method find = type.getMethod("getHandle");
-				
-				// It's thread safe, as getMethod should return the same handle 
-				cache.put(type, find);
-				return find;
-				
-			} catch (SecurityException e) {
-				return null;
-			} catch (NoSuchMethodException e) {
-				return null;
-			}
-		}
-	}
-	
-	public static interface Unwrapper {
-		public Object unwrapItem(Object wrappedObject);
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/PacketFilterManager.java

@@ -1,741 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.injector;
-
-import java.io.DataInputStream;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import net.minecraft.server.Packet;
-import net.sf.cglib.proxy.Enhancer;
-import net.sf.cglib.proxy.MethodInterceptor;
-import net.sf.cglib.proxy.MethodProxy;
-
-import org.bukkit.Server;
-import org.bukkit.entity.Entity;
-import org.bukkit.entity.Player;
-import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
-import org.bukkit.event.Listener;
-import org.bukkit.event.player.PlayerJoinEvent;
-import org.bukkit.event.player.PlayerQuitEvent;
-import org.bukkit.event.server.PluginDisableEvent;
-import org.bukkit.plugin.Plugin;
-import org.bukkit.plugin.PluginManager;
-
-import com.comphenix.protocol.AsynchronousManager;
-import com.comphenix.protocol.ProtocolManager;
-import com.comphenix.protocol.async.AsyncFilterManager;
-import com.comphenix.protocol.async.AsyncMarker;
-import com.comphenix.protocol.events.*;
-import com.comphenix.protocol.reflect.FieldAccessException;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-import com.google.common.base.Objects;
-import com.google.common.collect.ImmutableSet;
-
-public final class PacketFilterManager implements ProtocolManager {
-
-	/**
-	 * Sets the inject hook type. Different types allow for maximum compatibility.
-	 * @author Kristian
-	 */
-	public enum PlayerInjectHooks {
-		/**
-		 * Override the packet queue lists in NetworkHandler. 
-		 * <p>
-		 * Cannot intercept MapChunk packets. 
-		 */
-		NETWORK_HANDLER_FIELDS,
-		
-		/**
-		 * Override the network handler object itself. Only works in 1.3.
-		 * <p>
-		 * Cannot intercept MapChunk packets. 
-		 */
-		NETWORK_MANAGER_OBJECT,
-		
-		/**
-		 * Override the server handler object. Versatile, but a tad slower.
-		 */
-		NETWORK_SERVER_OBJECT;
-	}
-	
-	// Create a concurrent set
-	private Set<PacketListener> packetListeners = 
-			Collections.newSetFromMap(new ConcurrentHashMap<PacketListener, Boolean>());
-	
-	// Player injection
-	private Map<DataInputStream, Player> connectionLookup = new ConcurrentHashMap<DataInputStream, Player>();
-	private Map<Player, PlayerInjector> playerInjection = new HashMap<Player, PlayerInjector>();
-	
-	// Player injection type
-	private PlayerInjectHooks playerHook = PlayerInjectHooks.NETWORK_SERVER_OBJECT;
-	
-	// Packet injection
-	private PacketInjector packetInjector;
-	
-	// Server connection injection
-	private InjectedServerConnection serverInjection;
-	
-	// Enabled packet filters
-	private Set<Integer> sendingFilters = Collections.newSetFromMap(new ConcurrentHashMap<Integer, Boolean>());
-	
-	// The two listener containers
-	private SortedPacketListenerList recievedListeners = new SortedPacketListenerList();
-	private SortedPacketListenerList sendingListeners = new SortedPacketListenerList();
-	
-	// Whether or not this class has been closed
-	private volatile boolean hasClosed;
-	
-	// The default class loader
-	private ClassLoader classLoader;
-	
-	// The last successful player hook
-	private PlayerInjector lastSuccessfulHook;
-	
-	// Error logger
-	private Logger logger;
-	
-	// The async packet handler
-	private AsyncFilterManager asyncFilterManager;
-	
-	/**
-	 * Only create instances of this class if protocol lib is disabled.
-	 */
-	public PacketFilterManager(ClassLoader classLoader, Server server, Logger logger) {
-		if (logger == null)
-			throw new IllegalArgumentException("logger cannot be NULL.");
-		if (classLoader == null)
-			throw new IllegalArgumentException("classLoader cannot be NULL.");
-		
-		try {
-			// Initialize values
-			this.classLoader = classLoader;
-			this.logger = logger;
-			this.packetInjector = new PacketInjector(classLoader, this, connectionLookup);
-			this.asyncFilterManager = new AsyncFilterManager(logger, server.getScheduler(), this);
-			this.serverInjection = new InjectedServerConnection(logger, server);
-		} catch (IllegalAccessException e) {
-			logger.log(Level.SEVERE, "Unable to initialize packet injector.", e);
-		}
-	}
-	
-	@Override
-	public AsynchronousManager getAsynchronousManager() {
-		return asyncFilterManager;
-	}
-	
-	/**
-	 * Retrieves how the server packets are read.
-	 * @return Injection method for reading server packets.
-	 */
-	public PlayerInjectHooks getPlayerHook() {
-		return playerHook;
-	}
-
-	/**
-	 * Sets how the server packets are read.
-	 * @param playerHook - the new injection method for reading server packets.
-	 */
-	public void setPlayerHook(PlayerInjectHooks playerHook) {
-		this.playerHook = playerHook;
-		
-		// Make sure the current listeners are compatible
-		if (lastSuccessfulHook != null) {
-			for (PacketListener listener : packetListeners) {
-				checkListener(listener);
-			}
-		}
-	}
-
-	public Logger getLogger() {
-		return logger;
-	}
-	
-	@Override
-	public ImmutableSet<PacketListener> getPacketListeners() {
-		return ImmutableSet.copyOf(packetListeners);
-	}
-
-	@Override
-	public void addPacketListener(PacketListener listener) {
-		if (listener == null)
-			throw new IllegalArgumentException("listener cannot be NULL.");
-		
-		// A listener can only be added once
-		if (packetListeners.contains(listener))
-			return;
-		
-		ListeningWhitelist sending = listener.getSendingWhitelist();
-		ListeningWhitelist receiving = listener.getReceivingWhitelist();
-		boolean hasSending = sending != null && sending.isEnabled();
-		boolean hasReceiving = receiving != null && receiving.isEnabled();
-		
-		if (hasSending || hasReceiving) {
-			// Add listeners and hooks
-			if (hasSending) {
-				verifyWhitelist(listener, sending);
-				sendingListeners.addListener(listener, sending);
-				enablePacketFilters(ConnectionSide.SERVER_SIDE, sending.getWhitelist());
-			}
-			if (hasReceiving) {
-				verifyWhitelist(listener, receiving);
-				recievedListeners.addListener(listener, receiving);
-				enablePacketFilters(ConnectionSide.CLIENT_SIDE, receiving.getWhitelist());
-				
-				// We don't know if we've hooked any players yet
-				checkListener(listener);
-			}
-			
-			// Inform our injected hooks
-			packetListeners.add(listener);
-		}
-	}
-	
-	/**
-	 * Determine if the packet IDs in a whitelist is valid.
-	 * @param listener - the listener that will be mentioned in the error.
-	 * @param whitelist - whitelist of packet IDs.
-	 * @throws IllegalArgumentException If the whitelist is illegal.
-	 */
-	public static void verifyWhitelist(PacketListener listener, ListeningWhitelist whitelist) {
-		for (Integer id : whitelist.getWhitelist()) {
-			if (id >= 256 || id < 0) {
-				throw new IllegalArgumentException(String.format("Invalid packet id %s in listener %s.", 
-							id, PacketAdapter.getPluginName(listener))
-				);
-			}
-		}
-	}
-	
-	/**
-	 * Determine if a listener is valid or not.
-	 * @param listener - listener to check.
-	 * @throws IllegalStateException If the given listener's whitelist cannot be fulfilled.
-	 */
-	public void checkListener(PacketListener listener) {
-		try {
-			if (lastSuccessfulHook != null)
-				lastSuccessfulHook.checkListener(listener);
-		} catch (Exception e) {
-			throw new IllegalStateException("Registering listener " + PacketAdapter.getPluginName(listener) + " failed", e);
-		}
-	}
-	
-	@Override
-	public void removePacketListener(PacketListener listener) {
-		if (listener == null)
-			throw new IllegalArgumentException("listener cannot be NULL");
-
-		List<Integer> sendingRemoved = null;
-		List<Integer> receivingRemoved = null;
-		
-		ListeningWhitelist sending = listener.getSendingWhitelist();
-		ListeningWhitelist receiving = listener.getReceivingWhitelist();
-		
-		// Remove from the overal list of listeners
-		if (!packetListeners.remove(listener))
-			return;
-		
-		// Add listeners
-		if (sending != null && sending.isEnabled())
-			sendingRemoved = sendingListeners.removeListener(listener, sending);
-		if (receiving != null && receiving.isEnabled())
-			receivingRemoved = recievedListeners.removeListener(listener, receiving);
-		
-		// Remove hooks, if needed
-		if (sendingRemoved != null && sendingRemoved.size() > 0)
-			disablePacketFilters(ConnectionSide.SERVER_SIDE, sendingRemoved);
-		if (receivingRemoved != null && receivingRemoved.size() > 0)
-			disablePacketFilters(ConnectionSide.CLIENT_SIDE, receivingRemoved);
-	}
-	
-	@Override
-	public void removePacketListeners(Plugin plugin) {
-		
-		// Iterate through every packet listener
-		for (PacketListener listener : packetListeners) {			
-			// Remove the listener
-			if (Objects.equal(listener.getPlugin(), plugin)) {
-				removePacketListener(listener);
-			}
-		}
-		
-		// Do the same for the asynchronous events
-		asyncFilterManager.unregisterAsyncHandlers(plugin);
-	}
-	
-	/**
-	 * Invokes the given packet event for every registered listener.
-	 * @param event - the packet event to invoke.
-	 */
-	public void invokePacketRecieving(PacketEvent event) {
-		handlePacket(recievedListeners, event, false);
-	}
-	
-	/**
-	 * Invokes the given packet event for every registered listener.
-	 * @param event - the packet event to invoke.
-	 */
-	public void invokePacketSending(PacketEvent event) {
-		handlePacket(sendingListeners, event, true);
-	}
-	
-	/**
-	 * Handle a packet sending or receiving event.
-	 * <p>
-	 * Note that we also handle asynchronous events.
-	 * @param packetListeners - packet listeners that will receive this event.
-	 * @param event - the evnet to broadcast.
-	 */
-	private void handlePacket(SortedPacketListenerList packetListeners, PacketEvent event, boolean sending) {
-		
-		// By default, asynchronous packets are queued for processing
-		if (asyncFilterManager.hasAsynchronousListeners(event)) {
-			event.setAsyncMarker(asyncFilterManager.createAsyncMarker());
-		}
-		
-		// Process synchronous events
-		if (sending)
-			packetListeners.invokePacketSending(logger, event);
-		else
-			packetListeners.invokePacketRecieving(logger, event);
-		
-		// To cancel asynchronous processing, use the async marker
-		if (!event.isCancelled() && !hasAsyncCancelled(event.getAsyncMarker())) {
-			asyncFilterManager.enqueueSyncPacket(event, event.getAsyncMarker());
-
-			// The above makes a copy of the event, so it's safe to cancel it
-			event.setCancelled(true);
-		}
-	}
-	
-	// NULL marker mean we're dealing with no asynchronous listeners 
-	private boolean hasAsyncCancelled(AsyncMarker marker) {
-		return marker == null || marker.isAsyncCancelled();
-	}
-	
-	/**
-	 * Enables packet events for a given packet ID.
-	 * <p>
-	 * Note that all packets are disabled by default.
-	 * 
-	 * @param side - which side the event will arrive from.
-	 * @param packets - the packet id(s).
-	 */
-	private void enablePacketFilters(ConnectionSide side, Iterable<Integer> packets) {
-		if (side == null)
-			throw new IllegalArgumentException("side cannot be NULL.");
-		
-		for (int packetID : packets) {
-			if (side.isForServer()) 
-				sendingFilters.add(packetID);
-			if (side.isForClient() && packetInjector != null)
-				packetInjector.addPacketHandler(packetID);
-		}
-	}
-
-	/**
-	 * Disables packet events from a given packet ID.
-	 * @param packets - the packet id(s).
-	 * @param side - which side the event no longer should arrive from.
-	 */
-	private void disablePacketFilters(ConnectionSide side, Iterable<Integer> packets) {
-		if (side == null)
-			throw new IllegalArgumentException("side cannot be NULL.");
-		
-		for (int packetID : packets) {
-			if (side.isForServer())
-				sendingFilters.remove(packetID);
-			if (side.isForClient() && packetInjector != null) 
-				packetInjector.removePacketHandler(packetID);
-		}
-	}
-	
-	@Override
-	public void sendServerPacket(Player reciever, PacketContainer packet) throws InvocationTargetException {
-		sendServerPacket(reciever, packet, true);
-	}
-	
-	@Override
-	public void sendServerPacket(Player reciever, PacketContainer packet, boolean filters) throws InvocationTargetException {
-		if (reciever == null)
-			throw new IllegalArgumentException("reciever cannot be NULL.");
-		if (packet == null)
-			throw new IllegalArgumentException("packet cannot be NULL.");
-		
-		getInjector(reciever).sendServerPacket(packet.getHandle(), filters);
-	}
-
-	@Override
-	public void recieveClientPacket(Player sender, PacketContainer packet) throws IllegalAccessException, InvocationTargetException {
-		recieveClientPacket(sender, packet, true);
-	}
-	
-	@Override
-	public void recieveClientPacket(Player sender, PacketContainer packet, boolean filters) throws IllegalAccessException, InvocationTargetException {
-		
-		if (sender == null)
-			throw new IllegalArgumentException("sender cannot be NULL.");
-		if (packet == null)
-			throw new IllegalArgumentException("packet cannot be NULL.");
-		
-		PlayerInjector injector = getInjector(sender);
-		Packet mcPacket = packet.getHandle();
-		
-		// Make sure the packet isn't cancelled
-		packetInjector.undoCancel(packet.getID(), mcPacket);
-		
-		if (filters) {
-			mcPacket = injector.handlePacketRecieved(mcPacket);
-		}
-		
-		injector.processPacket(mcPacket);
-	}
-	
-	@Override
-	public PacketContainer createPacket(int id) {
-		return createPacket(id, true);
-	}
-	
-	@Override
-	public PacketContainer createPacket(int id, boolean forceDefaults) {
-		PacketContainer packet = new PacketContainer(id);
-		
-		// Use any default values if possible
-		if (forceDefaults) {
-			try {
-				packet.getModifier().writeDefaults();
-			} catch (FieldAccessException e) {
-				throw new RuntimeException("Security exception.", e);
-			}
-		}
-		
-		return packet;
-	}
-	
-	@Override
-	public PacketConstructor createPacketConstructor(int id, Object... arguments) {
-		return PacketConstructor.DEFAULT.withPacket(id, arguments);
-	}
-
-	@Override
-	public Set<Integer> getSendingFilters() {
-		return ImmutableSet.copyOf(sendingFilters);
-	}
-	
-	@Override
-	public Set<Integer> getReceivingFilters() {
-		return ImmutableSet.copyOf(packetInjector.getPacketHandlers());
-	}
-	
-	@Override
-	public void updateEntity(Entity entity, List<Player> observers) throws FieldAccessException {
-		EntityUtilities.updateEntity(entity, observers);
-	}
-	
-	/**
-	 * Initialize the packet injection for every player.
-	 * @param players - list of players to inject. 
-	 */
-	public void initializePlayers(Player[] players) {
-		for (Player player : players)
-			injectPlayer(player);
-	}
-	
-	/**
-	 * Used to construct a player hook.
-	 * @param player - the player to hook.
-	 * @param hook - the hook type.
-	 * @return A new player hoook
-	 * @throws IllegalAccessException Unable to do our reflection magic.
-	 */
-	protected PlayerInjector getHookInstance(Player player, PlayerInjectHooks hook) throws IllegalAccessException {
-		// Construct the correct player hook
-		switch (hook) {
-		case NETWORK_HANDLER_FIELDS: 
-			return new NetworkFieldInjector(player, this, sendingFilters);
-		case NETWORK_MANAGER_OBJECT: 
-			return new NetworkObjectInjector(player, this, sendingFilters);
-		case NETWORK_SERVER_OBJECT:
-			return new NetworkServerInjector(player, this, sendingFilters, serverInjection);
-		default:
-			throw new IllegalArgumentException("Cannot construct a player injector.");
-		}
-	}
-	
-	/**
-	 * Initialize a player hook, allowing us to read server packets.
-	 * @param player - player to hook.
-	 */
-	protected void injectPlayer(Player player) {
-		
-		PlayerInjector injector = null;
-		PlayerInjectHooks currentHook = playerHook;
-		boolean firstPlayer = lastSuccessfulHook == null;
-		
-		// Don't inject if the class has closed
-		if (!hasClosed && player != null && !playerInjection.containsKey(player)) {
-			while (true) {
-				try {
-					injector = getHookInstance(player, currentHook);
-					injector.injectManager();
-					playerInjection.put(player, injector);
-					connectionLookup.put(injector.getInputStream(false), player);
-					break;
-					
-				} catch (Exception e) {
-
-					// Mark this injection attempt as a failure
-					logger.log(Level.SEVERE, "Player hook " + currentHook.toString() + " failed.", e);
-					
-					// Clean up as much as possible
-					try {
-						if (injector != null)
-							injector.cleanupAll();
-					} catch (Exception e2) {
-						logger.log(Level.WARNING, "Cleaing up after player hook failed.", e);
-					}
-					
-					if (currentHook.ordinal() > 0) {
-						// Choose the previous player hook type
-						currentHook = PlayerInjectHooks.values()[currentHook.ordinal() - 1];
-						logger.log(Level.INFO, "Switching to " + currentHook.toString() + " instead.");
-					} else {
-						// UTTER FAILURE
-						playerInjection.put(player, null);
-						return;
-					}
-				}
-			}
-			
-			// Update values
-			if (injector != null)
-				lastSuccessfulHook = injector;
-			if (currentHook != playerHook || firstPlayer) 
-				setPlayerHook(currentHook);
-		}
-	}
-	
-	/**
-	 * Register this protocol manager on Bukkit.
-	 * @param manager - Bukkit plugin manager that provides player join/leave events.
-	 * @param plugin - the parent plugin.
-	 */
-	public void registerEvents(PluginManager manager, final Plugin plugin) {
-		
-		try {
-			manager.registerEvents(new Listener() {
-				
-				@EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
-			    public void onPlayerJoin(PlayerJoinEvent event) {
-					injectPlayer(event.getPlayer());
-			    }
-				
-				@EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
-			    public void onPlayerQuit(PlayerQuitEvent event) {
-					uninjectPlayer(event.getPlayer());
-			    }
-				
-				@EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
-			    public void onPluginDisabled(PluginDisableEvent event) {
-					// Clean up in case the plugin forgets
-					if (event.getPlugin() != plugin) {
-						removePacketListeners(event.getPlugin());
-					}
-			    }
-				
-			}, plugin);
-		
-		} catch (NoSuchMethodError e) {
-			// Oh wow! We're running on 1.0.0 or older.
-			registerOld(manager, plugin);
-		}
-	}
-	
-	// Yes, this is crazy.
-	@SuppressWarnings({ "unchecked", "rawtypes" })
-	private void registerOld(PluginManager manager, Plugin plugin) {
-		
-		try {
-			ClassLoader loader = manager.getClass().getClassLoader();
-			
-			// The different enums we are going to need
-			Class eventTypes = loader.loadClass("org.bukkit.event.Event$Type");
-			Class eventPriority = loader.loadClass("org.bukkit.event.Event$Priority");
-			
-			// Get the priority
-			Object priorityNormal = Enum.valueOf(eventPriority, "Normal");
-			
-			// Get event types
-			Object playerJoinType = Enum.valueOf(eventTypes, "PLAYER_JOIN");
-			Object playerQuitType = Enum.valueOf(eventTypes, "PLAYER_QUIT");
-			Object pluginDisabledType = Enum.valueOf(eventTypes, "PLUGIN_DISABLE");
-			
-			// The player listener! Good times.
-			Class<?> playerListener = loader.loadClass("org.bukkit.event.player.PlayerListener");
-			Class<?> serverListener = loader.loadClass("org.bukkit.event.server.ServerListener");
-			
-			// Find the register event method
-			Method registerEvent = FuzzyReflection.fromObject(manager).getMethodByParameters("registerEvent", 
-					eventTypes, Listener.class, eventPriority, Plugin.class);
-
-			Enhancer playerEx = new Enhancer();
-			Enhancer serverEx = new Enhancer();
-			
-			playerEx.setSuperclass(playerListener);
-			playerEx.setClassLoader(classLoader);
-			playerEx.setCallback(new MethodInterceptor() {
-				@Override
-				public Object intercept(Object obj, Method method, Object[] args, MethodProxy proxy) throws Throwable {
-					// Must have a parameter
-					if (args.length == 1) {
-						Object event = args[0];
-						
-						// Check for the correct event
-						if (event instanceof PlayerJoinEvent)
-							injectPlayer(((PlayerJoinEvent) event).getPlayer());
-						else if (event instanceof PlayerQuitEvent)
-							uninjectPlayer(((PlayerQuitEvent) event).getPlayer());
-					}
-					return null;
-				}
-			});
-			
-			serverEx.setSuperclass(serverListener);
-			serverEx.setClassLoader(classLoader);
-			serverEx.setCallback(new MethodInterceptor() {
-				@Override
-				public Object intercept(Object obj, Method method, Object[] args,
-						MethodProxy proxy) throws Throwable {
-					// Must have a parameter
-					if (args.length == 1) {
-						Object event = args[0];
-						
-						if (event instanceof PluginDisableEvent)
-							removePacketListeners(((PluginDisableEvent) event).getPlugin());
-					}
-					return null;
-				}
-			});
-			
-			// Create our listener
-			Object playerProxy = playerEx.create();
-			Object serverProxy = serverEx.create();
-			
-			registerEvent.invoke(manager, playerJoinType, playerProxy, priorityNormal, plugin);
-			registerEvent.invoke(manager, playerQuitType, playerProxy, priorityNormal, plugin);
-			registerEvent.invoke(manager, pluginDisabledType, serverProxy, priorityNormal, plugin);
-			
-			// A lot can go wrong
-		} catch (ClassNotFoundException e1) {
-			e1.printStackTrace();
-		} catch (IllegalArgumentException e) {
-			e.printStackTrace();
-		} catch (IllegalAccessException e) {
-			e.printStackTrace();
-		} catch (InvocationTargetException e) {
-			e.printStackTrace();
-		}
-	}
-	
-	private void uninjectPlayer(Player player) {
-		if (!hasClosed && player != null) {
-			
-			PlayerInjector injector = playerInjection.get(player);
-			
-			if (injector != null) {
-				DataInputStream input = injector.getInputStream(true);
-				injector.cleanupAll();
-				
-				playerInjection.remove(player);
-				connectionLookup.remove(input);
-			}
-		}	
-	}
-	
-	private PlayerInjector getInjector(Player player) {
-		if (!playerInjection.containsKey(player)) {
-			// What? Try to inject again.
-			injectPlayer(player);
-		}
-		
-		PlayerInjector injector = playerInjection.get(player);
-		
-		// Check that the injector was sucessfully added
-		if (injector != null)
-			return injector;
-		else
-			throw new IllegalArgumentException("Player has no injected handler.");
-	}
-	
-	/**
-	 * Retrieves the current plugin class loader.
-	 * @return Class loader.
-	 */
-	public ClassLoader getClassLoader() {
-		return classLoader;
-	}
-	
-	@Override
-	public boolean isClosed() {
-		return hasClosed;
-	}
-	
-	public void close() {
-		// Guard
-		if (hasClosed || playerInjection == null)
-			return;
-
-		// Remove everything
-		for (PlayerInjector injection : playerInjection.values()) {
-			if (injection != null) {
-				injection.cleanupAll();
-			}
-		}
-
-		// Remove packet handlers
-		if (packetInjector != null)
-			packetInjector.cleanupAll();
-		
-		// Remove server handler
-		serverInjection.cleanupAll();
-		hasClosed = true;
-		
-		// Remove listeners
-		packetListeners.clear();
-		playerInjection.clear();
-		connectionLookup.clear();
-		
-		// Clean up async handlers. We have to do this last.
-		asyncFilterManager.cleanupAll();
-	}
-	
-	@Override
-	protected void finalize() throws Throwable {
-		close();
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/PacketInjector.java

@@ -1,217 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.injector;
-
-import java.io.DataInputStream;
-import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.Map;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-
-import org.bukkit.entity.Player;
-
-import net.minecraft.server.Packet;
-import net.sf.cglib.proxy.Callback;
-import net.sf.cglib.proxy.Enhancer;
-
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.reflect.FieldUtils;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-
-/**
- * This class is responsible for adding or removing proxy objects that intercepts recieved packets.
- * 
- * @author Kristian
- */
-class PacketInjector {
-
-	// The "put" method that associates a packet ID with a packet class
-	private static Method putMethod;
-	private static Object intHashMap;
-	
-	// The packet filter manager
-	private PacketFilterManager manager;
-	
-	// Allows us to determine the sender
-	private Map<DataInputStream, Player> playerLookup;
-	
-	// Allows us to look up read packet injectors
-	private Map<Integer, ReadPacketModifier> readModifier;
-	
-	// Class loader
-	private ClassLoader classLoader;
-			
-	public PacketInjector(ClassLoader classLoader, PacketFilterManager manager, 
-						  Map<DataInputStream, Player> playerLookup) throws IllegalAccessException {
-		
-		this.classLoader = classLoader;
-		this.manager = manager;
-		this.playerLookup = playerLookup;
-		this.readModifier = new ConcurrentHashMap<Integer, ReadPacketModifier>();
-		initialize();
-	}
-	
-	/**
-	 * Undo a packet cancel.
-	 * @param id - the id of the packet.
-	 * @param packet - packet to uncancel.
-	 */
-	public void undoCancel(Integer id, Packet packet) {
-		ReadPacketModifier modifier = readModifier.get(id);
-		
-		// Cancelled packets are represented with NULL
-		if (modifier != null && modifier.getOverride(packet) == null) {
-			modifier.removeOverride(packet);
-		}
-	}
-	
-	private void initialize() throws IllegalAccessException {
-		if (intHashMap == null) {
-			// We're looking for the first static field with a Minecraft-object. This should be a IntHashMap.
-			Field intHashMapField = FuzzyReflection.fromClass(Packet.class, true).getFieldByType(FuzzyReflection.MINECRAFT_OBJECT);
-			
-			try {
-				intHashMap = FieldUtils.readField(intHashMapField, (Object) null, true);
-			} catch (IllegalArgumentException e) {
-				throw new RuntimeException("Minecraft is incompatible.", e);
-			}
-			
-			// Now, get the "put" method.
-			putMethod = FuzzyReflection.fromObject(intHashMap).getMethodByParameters("put", int.class, Object.class);
-		}
-	}
-	
-	@SuppressWarnings("rawtypes")
-	public boolean addPacketHandler(int packetID) {
-		if (hasPacketHandler(packetID))
-			return false;
-		
-		Enhancer ex = new Enhancer();
-		
-		// Unfortunately, we can't easily distinguish between these two functions:
-		//   * Object lookup(int par1)
-		//   * Object removeObject(int par1)
-		
-		// So, we'll use the classMapToInt registry instead.
-		Map<Integer, Class> overwritten = MinecraftRegistry.getOverwrittenPackets();
-		Map<Integer, Class> previous = MinecraftRegistry.getPreviousPackets();
-		Map<Class, Integer> registry = MinecraftRegistry.getPacketToID();
-		Class old = MinecraftRegistry.getPacketClassFromID(packetID);
-		
-		// Check for previous injections
-		if (!old.getName().startsWith("net.minecraft.")) {
-			throw new IllegalStateException("Packet " + packetID + " has already been injected.");
-		}
-		
-		// Subclass the specific packet class
-		ex.setSuperclass(old);
-		ex.setCallbackType(ReadPacketModifier.class);
-		ex.setUseCache(false);
-		ex.setClassLoader(classLoader);
-		Class proxy = ex.createClass();
-		
-		// Create the proxy handler
-		ReadPacketModifier modifier = new ReadPacketModifier(packetID, this);
-		readModifier.put(packetID, modifier);
-		
-		// Add a static reference
-		Enhancer.registerStaticCallbacks(proxy, new Callback[] { modifier });
-		
-		try {
-			// Override values
-			putMethod.invoke(intHashMap, packetID, proxy);
-			previous.put(packetID, old);
-			registry.put(proxy, packetID);
-			overwritten.put(packetID, proxy);
-			return true;
-			
-		} catch (IllegalArgumentException e) {
-			throw new RuntimeException("Illegal argument.", e);
-		} catch (IllegalAccessException e) {
-			throw new RuntimeException("Cannot access method.", e);
-		} catch (InvocationTargetException e) {
-			throw new RuntimeException("Exception occured in IntHashMap.put.", e);
-		}
-	}
-	
-	@SuppressWarnings("rawtypes")
-	public boolean removePacketHandler(int packetID) {
-		if (!hasPacketHandler(packetID))
-			return false;
-		
-		Map<Class, Integer> registry = MinecraftRegistry.getPacketToID();
-		Map<Integer, Class> previous = MinecraftRegistry.getPreviousPackets();
-		Map<Integer, Class> overwritten = MinecraftRegistry.getOverwrittenPackets();
-		
-		// Use the old class definition
-		try {
-			Class old = previous.get(packetID);
-			Class proxy = MinecraftRegistry.getPacketClassFromID(packetID);
-			
-			putMethod.invoke(intHashMap, packetID, old);
-			previous.remove(packetID);
-			readModifier.remove(packetID);
-			registry.remove(proxy);
-			overwritten.remove(packetID);
-			return true;
-			
-			// Handle some problems
-		} catch (IllegalArgumentException e) {
-			return false;
-		} catch (IllegalAccessException e) {
-			throw new RuntimeException("Cannot access method.", e);
-		} catch (InvocationTargetException e) {
-			throw new RuntimeException("Exception occured in IntHashMap.put.", e);
-		}
-	}
-	
-	public boolean hasPacketHandler(int packetID) {
-		return MinecraftRegistry.getPreviousPackets().containsKey(packetID);
-	}
-	
-	public Set<Integer> getPacketHandlers() {
-		return MinecraftRegistry.getPreviousPackets().keySet();
-	}
-	
-	// Called from the ReadPacketModified monitor
-	PacketEvent packetRecieved(PacketContainer packet, DataInputStream input) {
-		
-		Player client = playerLookup.get(input);
-		PacketEvent event = PacketEvent.fromClient((Object) manager, packet, client);
-		
-		manager.invokePacketRecieving(event);
-		return event;
-	}
-	
-	@SuppressWarnings("rawtypes")
-	public void cleanupAll() {
-		Map<Integer, Class> overwritten = MinecraftRegistry.getOverwrittenPackets();
-		Map<Integer, Class> previous = MinecraftRegistry.getPreviousPackets();
-		
-		// Remove every packet handler
-		for (Integer id : previous.keySet()) {
-			removePacketHandler(id);
-		}
-		
-		overwritten.clear();
-		previous.clear();
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/PlayerInjector.java

@@ -1,262 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.injector;
-
-import java.io.DataInputStream;
-import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.Set;
-
-import net.minecraft.server.EntityPlayer;
-import net.minecraft.server.Packet;
-
-import org.bukkit.craftbukkit.entity.CraftPlayer;
-import org.bukkit.entity.Player;
-
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.reflect.FieldUtils;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-import com.comphenix.protocol.reflect.StructureModifier;
-import com.comphenix.protocol.reflect.VolatileField;
-
-abstract class PlayerInjector {
-	
-	// Cache previously retrieved fields
-	protected static Field serverHandlerField;
-	protected static Field networkManagerField;
-	protected static Field inputField;
-	protected static Field netHandlerField;
-	
-	// To add our injected array lists
-	protected static StructureModifier<Object> networkModifier;
-	
-	// And methods
-	protected static Method queueMethod;
-	protected static Method processMethod;
-		
-	protected Player player;
-	protected boolean hasInitialized;
-	
-	// Reference to the player's network manager
-	protected VolatileField networkManagerRef;
-	protected VolatileField serverHandlerRef;
-	protected Object networkManager;
-	
-	// Current net handler
-	protected Object serverHandler;
-	protected Object netHandler;
-	
-	// The packet manager and filters
-	protected PacketFilterManager manager;
-	protected Set<Integer> sendingFilters;
-	
-	// Previous data input
-	protected DataInputStream cachedInput;
-
-	public PlayerInjector(Player player, PacketFilterManager manager, Set<Integer> sendingFilters) throws IllegalAccessException {
-		this.player = player;
-		this.manager = manager;
-		this.sendingFilters = sendingFilters;
-		initialize();
-	}
-
-	/**
-	 * Retrieve the notch (NMS) entity player object.
-	 * @return Notch player object.
-	 */
-	protected EntityPlayer getEntityPlayer() {
-		CraftPlayer craft = (CraftPlayer) player;
-		return craft.getHandle();
-	}
-	
-	protected void initialize() throws IllegalAccessException {
-	
-		EntityPlayer notchEntity = getEntityPlayer();
-		
-		if (!hasInitialized) {
-			// Do this first, in case we encounter an exception
-			hasInitialized = true;
-			
-			// Retrieve the server handler
-			if (serverHandlerField == null)
-				serverHandlerField = FuzzyReflection.fromObject(notchEntity).getFieldByType(".*NetServerHandler");
-			serverHandlerRef = new VolatileField(serverHandlerField, notchEntity);
-			serverHandler = serverHandlerRef.getValue();
-			
-			// Next, get the network manager 
-			if (networkManagerField == null) 
-				networkManagerField = FuzzyReflection.fromObject(serverHandler).getFieldByType(".*NetworkManager");
-			networkManagerRef = new VolatileField(networkManagerField, serverHandler);
-			networkManager = networkManagerRef.getValue();
-			
-			// Create the network manager modifier from the actual object type
-			if (networkManager != null && networkModifier == null)
-				networkModifier = new StructureModifier<Object>(networkManager.getClass(), null, false);
-			
-			// And the queue method
-			if (queueMethod == null)
-				queueMethod = FuzzyReflection.fromClass(networkManagerField.getType()).
-								getMethodByParameters("queue", Packet.class );
-			
-			// And the data input stream that we'll use to identify a player
-			if (inputField == null)
-				inputField = FuzzyReflection.fromObject(networkManager, true).
-								getFieldByType("java\\.io\\.DataInputStream");
-		}
-	}
-	
-	/**
-	 * Retrieves the current net handler for this player.
-	 * @return Current net handler.
-	 * @throws IllegalAccessException Unable to find or retrieve net handler.
-	 */
-	protected Object getNetHandler() throws IllegalAccessException {
-		
-		// What a mess
-		try {
-			if (netHandlerField == null)
-				netHandlerField = FuzzyReflection.fromClass(networkManager.getClass(), true).
-									getFieldByType("net\\.minecraft\\.NetHandler");
-		} catch (RuntimeException e1) {
-			// Swallow it
-		}
-		
-		// Second attempt
-		if (netHandlerField == null) {
-			try {
-				// Well, that sucks. Try just Minecraft objects then.
-				netHandlerField = FuzzyReflection.fromClass(networkManager.getClass(), true).
-									 getFieldByType(FuzzyReflection.MINECRAFT_OBJECT);
-				
-			} catch (RuntimeException e2) {
-				throw new IllegalAccessException("Cannot locate net handler. " + e2.getMessage());
-			}
-		}
-		
-		// Get the handler
-		if (netHandler == null)
-			netHandler = FieldUtils.readField(netHandlerField, networkManager, true);
-		return netHandler;
-	}
-	
-	/**
-	 * Processes the given packet as if it was transmitted by the current player.
-	 * @param packet - packet to process.
-	 * @throws IllegalAccessException If the reflection machinery failed.
-	 * @throws InvocationTargetException If the underlying method caused an error.
-	 */
-	public void processPacket(Packet packet) throws IllegalAccessException, InvocationTargetException {
-		
-		Object netHandler = getNetHandler();
-		
-		// Get the process method
-		if (processMethod == null) {
-			try {
-				processMethod = FuzzyReflection.fromClass(Packet.class).
-						getMethodByParameters("processPacket", netHandlerField.getType());
-			} catch (RuntimeException e) {
-				throw new IllegalArgumentException("Cannot locate process packet method: " + e.getMessage());
-			}
-		}
-	
-		// We're ready
-		try {
-			processMethod.invoke(packet, netHandler);
-		} catch (IllegalArgumentException e) {
-			throw new IllegalArgumentException("Method " + processMethod.getName() + " is not compatible.");
-		} catch (InvocationTargetException e) {
-			throw e;
-		}
-	}
-	
-	/**
-	 * Send a packet to the client.
-	 * @param packet - server packet to send.
-	 * @param filtered - whether or not the packet will be filtered by our listeners.
-	 * @param InvocationTargetException If an error occured when sending the packet.
-	 */
-	public abstract void sendServerPacket(Packet packet, boolean filtered) throws InvocationTargetException;
-	
-	/**
-	 * Inject a hook to catch packets sent to the current player.
-	 */
-	public abstract void injectManager();
-	
-	/**
-	 * Remove all hooks and modifications.
-	 */
-	public abstract void cleanupAll();
-	
-	/**
-	 * Invoked before a new listener is registered.
-	 * <p>
-	 * The player injector should throw an exception if this listener cannot be properly supplied with packet events. 
-	 * @param listener - the listener that is about to be registered.
-	 */
-	public abstract void checkListener(PacketListener listener);
-	
-	/**
-	 * Allows a packet to be recieved by the listeners.
-	 * @param packet - packet to recieve.
-	 * @return The given packet, or the packet replaced by the listeners.
-	 */
-	Packet handlePacketRecieved(Packet packet) {
-		// Get the packet ID too
-		Integer id = MinecraftRegistry.getPacketToID().get(packet.getClass());
-
-		// Make sure we're listening
-		if (id != null && sendingFilters.contains(id)) {
-			// A packet has been sent guys!
-			PacketContainer container = new PacketContainer(id, packet);
-			PacketEvent event = PacketEvent.fromServer(manager, container, player);
-			manager.invokePacketSending(event);
-			
-			// Cancelling is pretty simple. Just ignore the packet.
-			if (event.isCancelled())
-				return null;
-			
-			// Right, remember to replace the packet again
-			return event.getPacket().getHandle();
-		}
-		
-		return packet;
-	}
-	
-	/**
-	 * Retrieve the current player's input stream.
-	 * @param cache - whether or not to cache the result of this method.
-	 * @return The player's input stream.
-	 */
-	public DataInputStream getInputStream(boolean cache) {
-		// Get the associated input stream
-		try {
-			if (cache && cachedInput != null)
-				return cachedInput;
-			
-			// Save to cache
-			cachedInput = (DataInputStream) FieldUtils.readField(inputField, networkManager, true);
-			return cachedInput;
-			
-		} catch (IllegalAccessException e) {
-			throw new RuntimeException("Unable to read input stream.", e);
-		}
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/ReadPacketModifier.java

@@ -1,122 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.injector;
-
-import java.io.DataInputStream;
-import java.lang.reflect.Method;
-import java.util.Arrays;
-import java.util.WeakHashMap;
-
-import com.comphenix.protocol.events.PacketContainer;
-import com.comphenix.protocol.events.PacketEvent;
-
-import net.minecraft.server.Packet;
-import net.sf.cglib.proxy.MethodInterceptor;
-import net.sf.cglib.proxy.MethodProxy;
-
-class ReadPacketModifier implements MethodInterceptor {
-
-	@SuppressWarnings("rawtypes")
-	private static Class[] parameters = { DataInputStream.class };
-
-	// Common for all packets of the same type
-	private PacketInjector packetInjector;
-	private int packetID;
-	
-	// Whether or not a packet has been cancelled
-	private static WeakHashMap<Object, Object> override = new WeakHashMap<Object, Object>();
-	
-	public ReadPacketModifier(int packetID, PacketInjector packetInjector) {
-		this.packetID = packetID;
-		this.packetInjector = packetInjector;
-	}
-	
-	/**
-	 * Remove any packet overrides.
-	 * @param packet - the packet to rever
-	 */
-	public void removeOverride(Packet packet) {
-		override.remove(packet);
-	}
-	
-	/**
-	 * Retrieve the packet that overrides the methods of the given packet.
-	 * @param packet - the given packet.
-	 * @return Overriden object.
-	 */
-	public Object getOverride(Packet packet) {
-		return override.get(packet);
-	}
-
-	@Override
-	public Object intercept(Object thisObj, Method method, Object[] args, MethodProxy proxy) throws Throwable {
-		
-		Object returnValue = null;
-		String methodName = method.getName();
-
-		// We always pass these down (otherwise, we'll end up with a infinite loop)
-		if (methodName.equals("hashCode") || methodName.equals("equals") || methodName.equals("toString")) {
-			return proxy.invokeSuper(thisObj, args);
-		}
-		
-		if (override.containsKey(thisObj)) {
-			Object overridenObject = override.get(thisObj);
-			
-			// This packet has been cancelled
-			if (overridenObject == null) {
-				// So, cancel all void methods
-				if (method.getReturnType().equals(Void.TYPE))
-					return null;
-				else // Revert to normal for everything else
-					overridenObject = thisObj;
-			}
-			
-			returnValue = proxy.invokeSuper(overridenObject, args);
-		} else {
-			returnValue = proxy.invokeSuper(thisObj, args);
-		}
-		
-		// Is this a readPacketData method?
-		if (returnValue == null && 
-				Arrays.equals(method.getParameterTypes(), parameters)) {
-			
-			// We need this in order to get the correct player
-			DataInputStream input = (DataInputStream) args[0];
-
-			// Let the people know
-			PacketContainer container = new PacketContainer(packetID, (Packet) thisObj);
-			PacketEvent event = packetInjector.packetRecieved(container, input);
-			Packet result = event.getPacket().getHandle();
-			
-			// Handle override
-			if (event != null) {
-				if (event.isCancelled()) {
-					override.put(thisObj, null);
-				} else if (!objectEquals(thisObj, result)) {
-					override.put(thisObj, result);
-				}
-			}
-		}
-		
-		return returnValue;
-	}
-	
-	private boolean objectEquals(Object a, Object b) {
-		return System.identityHashCode(a) != System.identityHashCode(b);
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/ReplacedArrayList.java

@@ -1,136 +0,0 @@
-package com.comphenix.protocol.injector;
-
-import java.util.Collection;
-import java.util.List;
-
-import com.google.common.base.Objects;
-import com.google.common.collect.BiMap;
-import com.google.common.collect.ForwardingList;
-import com.google.common.collect.HashBiMap;
-
-/**
- * Represents an array list that wraps another list, while automatically replacing one element with another.
- * <p>
- * The replaced elements can be recovered. 
- * 
- * @author Kristian
- * @param <TKey> - type of the elements we're replacing.
- */
-class ReplacedArrayList<TKey> extends ForwardingList<TKey> {
-	private BiMap<TKey, TKey> replaceMap = HashBiMap.create();
-	private List<TKey> underlyingList;
-	
-	public ReplacedArrayList(List<TKey> underlyingList) {
-		this.underlyingList = underlyingList;
-	}
-	
-	@Override
-	public boolean add(TKey element) {
-		if (replaceMap.containsKey(element)) {
-			return super.add(replaceMap.get(element));
-		} else {
-			return super.add(element);
-		}
-	}
-	
-	@Override
-	public void add(int index, TKey element) {
-		if (replaceMap.containsKey(element)) {
-			super.add(index, replaceMap.get(element));
-		} else {
-			super.add(index, element);
-		}
-	}
-	
-	@Override
-	public boolean addAll(Collection<? extends TKey> collection) {
-		int oldSize = size();
-		
-		for (TKey element : collection)
-			add(element);
-		return size() != oldSize;
-	}
-	
-	@Override
-	public boolean addAll(int index, Collection<? extends TKey> elements) {
-		int oldSize = size();
-		
-		for (TKey element : elements)
-			add(index++, element);
-		return size() != oldSize;
-	}
-	
-	@Override
-	protected List<TKey> delegate() {
-		return underlyingList;
-	}
-
-	/**
-	 * Add a replace rule.
-	 * <p>
-	 * This automatically replaces every existing element.
-	 * @param target - instance to find.
-	 * @param replacement - instance to replace with.
-	 */
-	public synchronized void addMapping(TKey target, TKey replacement) {
-		replaceMap.put(target, replacement);
-
-		// Replace existing elements
-		replaceAll(target, replacement);
-	}
-	
-	/**
-	 * Revert the given mapping.
-	 * @param target - the instance we replaced.
-	 */
-	public synchronized void removeMapping(TKey target) {
-		// Make sure the mapping exist
-		if (replaceMap.containsKey(target)) {
-			TKey replacement = replaceMap.get(target);
-			replaceMap.remove(target);
-	
-			// Revert existing elements
-			replaceAll(replacement, target);
-		}
-	}
-	
-	/**
-	 * Replace all instances of the given object.
-	 * @param find - object to find.
-	 * @param replace - object to replace it with.
-	 */
-	public synchronized void replaceAll(TKey find, TKey replace) {
-		for (int i = 0; i < underlyingList.size(); i++) {
-			if (Objects.equal(underlyingList.get(i), find))
-				underlyingList.set(i, replace);
-		}
-	}
-	
-	/**
-	 * Undo all replacements.
-	 */
-	public synchronized void revertAll() {
-		
-		// No need to do anything else
-		if (replaceMap.size() < 1)
-			return;
-		
-		BiMap<TKey, TKey> inverse = replaceMap.inverse();
-		
-		for (int i = 0; i < underlyingList.size(); i++) {
-			TKey replaced = underlyingList.get(i);
-			
-			if (inverse.containsKey(replaced)) {
-				underlyingList.set(i, inverse.get(replaced));
-			}
-		}
-		
-		replaceMap.clear();
-	}
-	
-	@Override
-	protected void finalize() throws Throwable {
-		revertAll();
-		super.finalize();
-	}
-}

ProtocolLib/src/com/comphenix/protocol/injector/SortedPacketListenerList.java

@@ -1,66 +0,0 @@
-package com.comphenix.protocol.injector;
-
-import java.util.Collection;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import com.comphenix.protocol.concurrency.AbstractConcurrentListenerMultimap;
-import com.comphenix.protocol.events.PacketAdapter;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.events.PacketListener;
-
-/**
- * Registry of synchronous packet listeners.
- * 
- * @author Kristian
- */
-class SortedPacketListenerList extends AbstractConcurrentListenerMultimap<PacketListener> {
-	
-	/**
-	 * Invokes the given packet event for every registered listener.
-	 * @param logger - the logger that will be used to inform about listener exceptions.
-	 * @param event - the packet event to invoke.
-	 */
-	public void invokePacketRecieving(Logger logger, PacketEvent event) {
-		Collection<PrioritizedListener<PacketListener>> list = getListener(event.getPacketID());
-		
-		if (list == null)
-			return;
-
-		// The returned list is thread-safe
-		for (PrioritizedListener<PacketListener> element : list) {
-			try {
-				element.getListener().onPacketReceiving(event);
-			} catch (Throwable e) {
-				// Minecraft doesn't want your Exception.
-				logger.log(Level.SEVERE, 
-						"Exception occured in onPacketReceiving() for " + 
-							PacketAdapter.getPluginName(element.getListener()), e);
-			}
-		}
-	}
-	
-	/**
-	 * Invokes the given packet event for every registered listener.
-	 * @param logger - the logger that will be used to inform about listener exceptions.
-	 * @param event - the packet event to invoke.
-	 */
-	public void invokePacketSending(Logger logger, PacketEvent event) {
-		Collection<PrioritizedListener<PacketListener>> list = getListener(event.getPacketID());
-		
-		if (list == null)
-			return;
-		
-		for (PrioritizedListener<PacketListener> element : list) {
-			try {
-				element.getListener().onPacketSending(event);
-			} catch (Throwable e) {
-				// Minecraft doesn't want your Exception.
-				logger.log(Level.SEVERE, 
-						"Exception occured in onPacketSending() for " + 
-							PacketAdapter.getPluginName(element.getListener()), e);
-			}
-		}
-	}
-	
-}

ProtocolLib/src/com/comphenix/protocol/injector/StructureCache.java

@@ -1,113 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.injector;
-
-import java.util.HashSet;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
-
-import net.minecraft.server.Packet;
-
-import com.comphenix.protocol.reflect.StructureModifier;
-import com.comphenix.protocol.reflect.compiler.BackgroundCompiler;
-import com.comphenix.protocol.reflect.compiler.CompileListener;
-import com.comphenix.protocol.reflect.compiler.CompiledStructureModifier;
-
-/**
- * Caches structure modifiers.
- * @author Kristian
- */
-public class StructureCache {
-	// Structure modifiers
-	private static ConcurrentMap<Integer, StructureModifier<Object>> structureModifiers = 
-			new ConcurrentHashMap<Integer, StructureModifier<Object>>();
-	
-	private static Set<Integer> compiling = new HashSet<Integer>();
-	
-	/**
-	 * Creates an empty Minecraft packet of the given ID.
-	 * @param id - packet ID.
-	 * @return Created packet.
-	 */
-	public static Packet newPacket(int id) {
-		try {
-			return (Packet) MinecraftRegistry.getPacketClassFromID(id, true).newInstance();
-		} catch (InstantiationException e) {
-			return null;
-		} catch (IllegalAccessException e) {
-			throw new RuntimeException("Access denied.", e);
-		}
-	}
-	
-	/**
-	 * Retrieve a cached structure modifier for the given packet id.
-	 * @param id - packet ID.
-	 * @return A structure modifier.
-	 */
-	public static StructureModifier<Object> getStructure(int id) {
-		// Compile structures by default
-		return getStructure(id, true);
-	}
-	
-	/**
-	 * Retrieve a cached structure modifier for the given packet id.
-	 * @param id - packet ID.
-	 * @param compile - whether or not to asynchronously compile the structure modifier.
-	 * @return A structure modifier.
-	 */
-	public static StructureModifier<Object> getStructure(int id, boolean compile) {
-		
-		StructureModifier<Object> result = structureModifiers.get(id);
-
-		// We don't want to create this for every lookup
-		if (result == null) {
-			// Use the vanilla class definition
-			final StructureModifier<Object> value = new StructureModifier<Object>(
-					MinecraftRegistry.getPacketClassFromID(id, true), Packet.class, true);
-			
-			result = structureModifiers.putIfAbsent(id, value);
-			
-			// We may end up creating multiple modifiers, but we'll agree on which to use
-			if (result == null) {
-				result = value;
-			}
-		}
-		
-		// Automatically compile the structure modifier
-		if (compile && !(result instanceof CompiledStructureModifier)) {
-			// Compilation is many orders of magnitude slower than synchronization
-			synchronized (compiling) {
-				final int idCopy = id;
-				final BackgroundCompiler compiler = BackgroundCompiler.getInstance();
-				
-				if (!compiling.contains(id) && compiler != null) {
-					compiler.scheduleCompilation(result, new CompileListener<Object>() {
-						@Override
-						public void onCompiled(StructureModifier<Object> compiledModifier) {
-							structureModifiers.put(idCopy, compiledModifier);
-						}
-					});
-					compiling.add(id);
-				}
-			}
-		}
-		
-		return result;
-	}
-}

ProtocolLib/src/com/comphenix/protocol/metrics/Metrics.java

@@ -1,648 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.metrics;
-
-/*
- * Copyright 2011 Tyler Blair. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification, are
- * permitted provided that the following conditions are met:
- *
- *    1. Redistributions of source code must retain the above copyright notice, this list of
- *       conditions and the following disclaimer.
- *
- *    2. Redistributions in binary form must reproduce the above copyright notice, this list
- *       of conditions and the following disclaimer in the documentation and/or other materials
- *       provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * The views and conclusions contained in the software and documentation are those of the
- * authors and contributors and should not be interpreted as representing official policies,
- * either expressed or implied, of anybody else.
- */
-
-import org.bukkit.Bukkit;
-import org.bukkit.configuration.file.YamlConfiguration;
-import org.bukkit.configuration.InvalidConfigurationException;
-import org.bukkit.plugin.Plugin;
-import org.bukkit.plugin.PluginDescriptionFile;
-
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStreamReader;
-import java.io.OutputStreamWriter;
-import java.io.UnsupportedEncodingException;
-import java.net.Proxy;
-import java.net.URL;
-import java.net.URLConnection;
-import java.net.URLEncoder;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.LinkedHashSet;
-import java.util.Set;
-import java.util.UUID;
-import java.util.logging.Level;
-
-/**
- * <p>
- * The metrics class obtains data about a plugin and submits statistics about it to the metrics backend.
- * </p>
- * <p>
- * Public methods provided by this class:
- * </p>
- * <code>
- * Graph createGraph(String name); <br/>
- * void addCustomData(Metrics.Plotter plotter); <br/>
- * void start(); <br/>
- * </code>
- */
-class Metrics {
-
-    /**
-     * The current revision number
-     */
-    private final static int REVISION = 5;
-
-    /**
-     * The base url of the metrics domain
-     */
-    private static final String BASE_URL = "http://mcstats.org";
-
-    /**
-     * The url used to report a server's status
-     */
-    private static final String REPORT_URL = "/report/%s";
-
-    /**
-     * The separator to use for custom data. This MUST NOT change unless you are hosting your own
-     * version of metrics and want to change it.
-     */
-    private static final String CUSTOM_DATA_SEPARATOR = "~~";
-
-    /**
-     * Interval of time to ping (in minutes)
-     */
-    private static final int PING_INTERVAL = 10;
-
-    /**
-     * The plugin this metrics submits for
-     */
-    private final Plugin plugin;
-
-    /**
-     * All of the custom graphs to submit to metrics
-     */
-    private final Set<Graph> graphs = Collections.synchronizedSet(new HashSet<Graph>());
-
-    /**
-     * The default graph, used for addCustomData when you don't want a specific graph
-     */
-    private final Graph defaultGraph = new Graph("Default");
-
-    /**
-     * The plugin configuration file
-     */
-    private final YamlConfiguration configuration;
-    
-    /**
-     * The plugin configuration file
-     */
-    private final File configurationFile;
-
-    /**
-     * Unique server id
-     */
-    private final String guid;
-
-    /**
-     * Lock for synchronization
-     */
-    private final Object optOutLock = new Object();
-
-    /**
-     * Id of the scheduled task
-     */
-    private volatile int taskId = -1;
-
-    public Metrics(final Plugin plugin) throws IOException {
-        if (plugin == null) {
-            throw new IllegalArgumentException("Plugin cannot be null");
-        }
-
-        this.plugin = plugin;
-
-        // load the config
-        configurationFile = getConfigFile();
-        configuration = YamlConfiguration.loadConfiguration(configurationFile);
-
-        // add some defaults
-        configuration.addDefault("opt-out", false);
-        configuration.addDefault("guid", UUID.randomUUID().toString());
-
-        // Do we need to create the file?
-        if (configuration.get("guid", null) == null) {
-            configuration.options().header("http://mcstats.org").copyDefaults(true);
-            configuration.save(configurationFile);
-        }
-
-        // Load the guid then
-        guid = configuration.getString("guid");
-    }
-
-    /**
-     * Construct and create a Graph that can be used to separate specific plotters to their own graphs
-     * on the metrics website. Plotters can be added to the graph object returned.
-     *
-     * @param name The name of the graph
-     * @return Graph object created. Will never return NULL under normal circumstances unless bad parameters are given
-     */
-    public Graph createGraph(final String name) {
-        if (name == null) {
-            throw new IllegalArgumentException("Graph name cannot be null");
-        }
-
-        // Construct the graph object
-        final Graph graph = new Graph(name);
-
-        // Now we can add our graph
-        graphs.add(graph);
-
-        // and return back
-        return graph;
-    }
-
-    /**
-     * Add a Graph object to Metrics that represents data for the plugin that should be sent to the backend
-     *
-     * @param graph The name of the graph
-     */
-    public void addGraph(final Graph graph) {
-        if (graph == null) {
-            throw new IllegalArgumentException("Graph cannot be null");
-        }
-
-        graphs.add(graph);
-    }
-
-    /**
-     * Adds a custom data plotter to the default graph
-     *
-     * @param plotter The plotter to use to plot custom data
-     */
-    public void addCustomData(final Plotter plotter) {
-        if (plotter == null) {
-            throw new IllegalArgumentException("Plotter cannot be null");
-        }
-
-        // Add the plotter to the graph o/
-        defaultGraph.addPlotter(plotter);
-
-        // Ensure the default graph is included in the submitted graphs
-        graphs.add(defaultGraph);
-    }
-
-    /**
-     * Start measuring statistics. This will immediately create an async repeating task as the plugin and send
-     * the initial data to the metrics backend, and then after that it will post in increments of
-     * PING_INTERVAL * 1200 ticks.
-     *
-     * @return True if statistics measuring is running, otherwise false.
-     */
-    public boolean start() {
-        synchronized (optOutLock) {
-            // Did we opt out?
-            if (isOptOut()) {
-                return false;
-            }
-
-            // Is metrics already running?
-            if (taskId >= 0) {
-                return true;
-            }
-
-            // Begin hitting the server with glorious data
-            taskId = plugin.getServer().getScheduler().scheduleAsyncRepeatingTask(plugin, new Runnable() {
-
-                private boolean firstPost = true;
-
-                public void run() {
-                    try {
-                        // This has to be synchronized or it can collide with the disable method.
-                        synchronized (optOutLock) {
-                            // Disable Task, if it is running and the server owner decided to opt-out
-                            if (isOptOut() && taskId > 0) {
-                                plugin.getServer().getScheduler().cancelTask(taskId);
-                                taskId = -1;
-                                // Tell all plotters to stop gathering information.
-                                for (Graph graph : graphs){
-                                    graph.onOptOut();
-                                }
-                            }
-                        }
-
-                        // We use the inverse of firstPost because if it is the first time we are posting,
-                        // it is not a interval ping, so it evaluates to FALSE
-                        // Each time thereafter it will evaluate to TRUE, i.e PING!
-                        postPlugin(!firstPost);
-
-                        // After the first post we set firstPost to false
-                        // Each post thereafter will be a ping
-                        firstPost = false;
-                    } catch (IOException e) {
-                        Bukkit.getLogger().log(Level.INFO, "[Metrics] " + e.getMessage());
-                    }
-                }
-            }, 0, PING_INTERVAL * 1200);
-
-            return true;
-        }
-    }
-
-    /**
-     * Has the server owner denied plugin metrics?
-     *
-     * @return true if metrics should be opted out of it
-     */
-    public boolean isOptOut() {
-        synchronized(optOutLock) {
-            try {
-                // Reload the metrics file
-                configuration.load(getConfigFile());
-            } catch (IOException ex) {
-                Bukkit.getLogger().log(Level.INFO, "[Metrics] " + ex.getMessage());
-                return true;
-            } catch (InvalidConfigurationException ex) {
-                Bukkit.getLogger().log(Level.INFO, "[Metrics] " + ex.getMessage());
-                return true;
-            }
-            return configuration.getBoolean("opt-out", false);
-        }
-    }
-
-    /**
-    * Enables metrics for the server by setting "opt-out" to false in the config file and starting the metrics task.
-    *
-    * @throws IOException
-    */
-    public void enable() throws IOException {
-        // This has to be synchronized or it can collide with the check in the task.
-        synchronized (optOutLock) {
-        	// Check if the server owner has already set opt-out, if not, set it.
-        	if (isOptOut()) {
-        		configuration.set("opt-out", false);
-        		configuration.save(configurationFile);
-        	}
-
-        	// Enable Task, if it is not running
-        	if (taskId < 0) {
-        		start();
-        	}
-        }
-    }
-
-    /**
-     * Disables metrics for the server by setting "opt-out" to true in the config file and canceling the metrics task.
-     *
-     * @throws IOException
-     */
-    public void disable() throws IOException {
-        // This has to be synchronized or it can collide with the check in the task.
-        synchronized (optOutLock) {
-            // Check if the server owner has already set opt-out, if not, set it.
-            if (!isOptOut()) {
-                configuration.set("opt-out", true);
-                configuration.save(configurationFile);
-            }
-
-            // Disable Task, if it is running
-            if (taskId > 0) {
-                this.plugin.getServer().getScheduler().cancelTask(taskId);
-                taskId = -1;
-            }
-        }
-    }
-
-    /**
-     * Gets the File object of the config file that should be used to store data such as the GUID and opt-out status
-     *
-     * @return the File object for the config file
-     */
-    public File getConfigFile() {
-        // I believe the easiest way to get the base folder (e.g craftbukkit set via -P) for plugins to use
-        // is to abuse the plugin object we already have
-        // plugin.getDataFolder() => base/plugins/PluginA/
-        // pluginsFolder => base/plugins/
-        // The base is not necessarily relative to the startup directory.
-        File pluginsFolder = plugin.getDataFolder().getParentFile();
-
-        // return => base/plugins/PluginMetrics/config.yml
-        return new File(new File(pluginsFolder, "PluginMetrics"), "config.yml");
-    }
-
-    /**
-     * Generic method that posts a plugin to the metrics website
-     */
-    private void postPlugin(final boolean isPing) throws IOException {
-        // The plugin's description file containg all of the plugin data such as name, version, author, etc
-        final PluginDescriptionFile description = plugin.getDescription();
-
-        // Construct the post data
-        final StringBuilder data = new StringBuilder();
-        data.append(encode("guid")).append('=').append(encode(guid));
-        encodeDataPair(data, "version", description.getVersion());
-        encodeDataPair(data, "server", Bukkit.getVersion());
-        encodeDataPair(data, "players", Integer.toString(Bukkit.getServer().getOnlinePlayers().length));
-        encodeDataPair(data, "revision", String.valueOf(REVISION));
-
-        // If we're pinging, append it
-        if (isPing) {
-            encodeDataPair(data, "ping", "true");
-        }
-
-        // Acquire a lock on the graphs, which lets us make the assumption we also lock everything
-        // inside of the graph (e.g plotters)
-        synchronized (graphs) {
-            final Iterator<Graph> iter = graphs.iterator();
-
-            while (iter.hasNext()) {
-                final Graph graph = iter.next();
-
-                for (Plotter plotter : graph.getPlotters()) {
-                    // The key name to send to the metrics server
-                    // The format is C-GRAPHNAME-PLOTTERNAME where separator - is defined at the top
-                    // Legacy (R4) submitters use the format Custom%s, or CustomPLOTTERNAME
-                    final String key = String.format("C%s%s%s%s", CUSTOM_DATA_SEPARATOR, graph.getName(), CUSTOM_DATA_SEPARATOR, plotter.getColumnName());
-
-                    // The value to send, which for the foreseeable future is just the string
-                    // value of plotter.getValue()
-                    final String value = Integer.toString(plotter.getValue());
-
-                    // Add it to the http post data :)
-                    encodeDataPair(data, key, value);
-                }
-            }
-        }
-
-        // Create the url
-        URL url = new URL(BASE_URL + String.format(REPORT_URL, encode(plugin.getDescription().getName())));
-
-        // Connect to the website
-        URLConnection connection;
-
-        // Mineshafter creates a socks proxy, so we can safely bypass it
-        // It does not reroute POST requests so we need to go around it
-        if (isMineshafterPresent()) {
-            connection = url.openConnection(Proxy.NO_PROXY);
-        } else {
-            connection = url.openConnection();
-        }
-
-        connection.setDoOutput(true);
-
-        // Write the data
-        final OutputStreamWriter writer = new OutputStreamWriter(connection.getOutputStream());
-        writer.write(data.toString());
-        writer.flush();
-
-        // Now read the response
-        final BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
-        final String response = reader.readLine();
-
-        // close resources
-        writer.close();
-        reader.close();
-
-        if (response == null || response.startsWith("ERR")) {
-            throw new IOException(response); //Throw the exception
-        } else {
-            // Is this the first update this hour?
-            if (response.contains("OK This is your first update this hour")) {
-                synchronized (graphs) {
-                    final Iterator<Graph> iter = graphs.iterator();
-
-                    while (iter.hasNext()) {
-                        final Graph graph = iter.next();
-
-                        for (Plotter plotter : graph.getPlotters()) {
-                            plotter.reset();
-                        }
-                    }
-                }
-            }
-        }
-    }
-
-    /**
-     * Check if mineshafter is present. If it is, we need to bypass it to send POST requests
-     *
-     * @return true if mineshafter is installed on the server
-     */
-    private boolean isMineshafterPresent() {
-        try {
-            Class.forName("mineshafter.MineServer");
-            return true;
-        } catch (Exception e) {
-            return false;
-        }
-    }
-
-    /**
-     * <p>Encode a key/value data pair to be used in a HTTP post request. This INCLUDES a & so the first
-     * key/value pair MUST be included manually, e.g:</p>
-     * <code>
-     * StringBuffer data = new StringBuffer();
-     * data.append(encode("guid")).append('=').append(encode(guid));
-     * encodeDataPair(data, "version", description.getVersion());
-     * </code>
-     *
-     * @param buffer the stringbuilder to append the data pair onto
-     * @param key the key value
-     * @param value the value
-     */
-    private static void encodeDataPair(final StringBuilder buffer, final String key, final String value) throws UnsupportedEncodingException {
-        buffer.append('&').append(encode(key)).append('=').append(encode(value));
-    }
-
-    /**
-     * Encode text as UTF-8
-     *
-     * @param text the text to encode
-     * @return the encoded text, as UTF-8
-     */
-    private static String encode(final String text) throws UnsupportedEncodingException {
-        return URLEncoder.encode(text, "UTF-8");
-    }
-
-    /**
-     * Represents a custom graph on the website
-     */
-    public static class Graph {
-
-        /**
-         * The graph's name, alphanumeric and spaces only :)
-         * If it does not comply to the above when submitted, it is rejected
-         */
-        private final String name;
-
-        /**
-         * The set of plotters that are contained within this graph
-         */
-        private final Set<Plotter> plotters = new LinkedHashSet<Plotter>();
-
-        private Graph(final String name) {
-            this.name = name;
-        }
-
-        /**
-         * Gets the graph's name
-         *
-         * @return the Graph's name
-         */
-        public String getName() {
-            return name;
-        }
-
-        /**
-         * Add a plotter to the graph, which will be used to plot entries
-         *
-         * @param plotter the plotter to add to the graph
-         */
-        public void addPlotter(final Plotter plotter) {
-            plotters.add(plotter);
-        }
-
-        /**
-         * Remove a plotter from the graph
-         *
-         * @param plotter the plotter to remove from the graph
-         */
-        public void removePlotter(final Plotter plotter) {
-            plotters.remove(plotter);
-        }
-
-        /**
-         * Gets an <b>unmodifiable</b> set of the plotter objects in the graph
-         *
-         * @return an unmodifiable {@link Set} of the plotter objects
-         */
-        public Set<Plotter> getPlotters() {
-            return Collections.unmodifiableSet(plotters);
-        }
-
-        @Override
-        public int hashCode() {
-            return name.hashCode();
-        }
-
-        @Override
-        public boolean equals(final Object object) {
-            if (!(object instanceof Graph)) {
-                return false;
-            }
-
-            final Graph graph = (Graph) object;
-            return graph.name.equals(name);
-        }
-
-        /**
-         * Called when the server owner decides to opt-out of Metrics while the server is running.
-         */
-        protected void onOptOut() {
-        }
-
-    }
-
-    /**
-     * Interface used to collect custom data for a plugin
-     */
-    public static abstract class Plotter {
-
-        /**
-         * The plot's name
-         */
-        private final String name;
-
-        /**
-         * Construct a plotter with the default plot name
-         */
-        public Plotter() {
-            this("Default");
-        }
-
-        /**
-         * Construct a plotter with a specific plot name
-         *
-         * @param name the name of the plotter to use, which will show up on the website
-         */
-        public Plotter(final String name) {
-            this.name = name;
-        }
-
-        /**
-         * Get the current value for the plotted point. Since this function defers to an external function
-         * it may or may not return immediately thus cannot be guaranteed to be thread friendly or safe.
-         * This function can be called from any thread so care should be taken when accessing resources
-         * that need to be synchronized.
-         *
-         * @return the current value for the point to be plotted.
-         */
-        public abstract int getValue();
-
-        /**
-         * Get the column name for the plotted point
-         *
-         * @return the plotted point's column name
-         */
-        public String getColumnName() {
-            return name;
-        }
-
-        /**
-         * Called after the website graphs have been updated
-         */
-        public void reset() {
-        }
-
-        @Override
-        public int hashCode() {
-            return getColumnName().hashCode();
-        }
-
-        @Override
-        public boolean equals(final Object object) {
-            if (!(object instanceof Plotter)) {
-                return false;
-            }
-
-            final Plotter plotter = (Plotter) object;
-            return plotter.name.equals(name) && plotter.getValue() == getValue();
-        }
-
-    }
-}

ProtocolLib/src/com/comphenix/protocol/metrics/Statistics.java

@@ -1,81 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.metrics;
-
-import java.io.IOException;
-import java.util.HashMap;
-import java.util.Map;
-
-import org.bukkit.plugin.Plugin;
-
-import com.comphenix.protocol.ProtocolLibrary;
-import com.comphenix.protocol.ProtocolManager;
-import com.comphenix.protocol.events.PacketAdapter;
-import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.metrics.Metrics.Graph;
-
-public class Statistics {
-
-	// Metrics
-	private Metrics metrics;
-	
-	public Statistics(Plugin plugin) throws IOException {
-		metrics = new Metrics(plugin);
-		metrics.start();
-		
-		// Determine who is using this library
-		addPluginUserGraph(metrics);
-	}
-	
-	private void addPluginUserGraph(Metrics metrics) {
-	
-		Graph pluginUsers = metrics.createGraph("Plugin Users");
-		
-		for (Map.Entry<String, Integer> entry : getPluginUsers(ProtocolLibrary.getProtocolManager()).entrySet()) {
-			final int count = entry.getValue();
-			
-			// Plot plugins of this type
-			pluginUsers.addPlotter(new Metrics.Plotter(entry.getKey()) {
-				@Override
-				public int getValue() {
-					return count;
-				}
-			});
-		}
-	}
-	
-	// Retrieve loaded plugins
-	private Map<String, Integer> getPluginUsers(ProtocolManager manager) {
-		
-		Map<String, Integer> users = new HashMap<String, Integer>();
-			
-		for (PacketListener listener : manager.getPacketListeners()) {
-			
-			String name = PacketAdapter.getPluginName(listener);
-			
-			// Increment occurence
-			if (!users.containsKey(name)) {
-				users.put(name, 1);
-			} else {
-				users.put(name, users.get(name) + 1);
-			}
-		}
-		
-		return users;
-	}
-}

ProtocolLib/src/com/comphenix/protocol/reflect/FuzzyReflection.java

@@ -1,388 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.reflect;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.LinkedHashSet;
-import java.util.List;
-import java.util.Set;
-import java.util.regex.Pattern;
-
-/**
- * Retrieves fields and methods by signature, not just name.
- * 
- * @author Kristian
- */
-public class FuzzyReflection {
-
-	/**
-	 * Matches a Minecraft object.
-	 */
-	public static String MINECRAFT_OBJECT = "net\\.minecraft(\\.\\w+)+";
-	
-	// The class we're actually representing
-	private Class<?> source;
-
-	// Whether or not to lookup private members
-	private boolean forceAccess;
-
-	public FuzzyReflection(Class<?> source, boolean forceAccess) {
-		this.source = source;
-		this.forceAccess = forceAccess;
-	}
-	
-	/**
-	 * Retrieves a fuzzy reflection instance from a given class.
-	 * @param source - the class we'll use.
-	 * @return A fuzzy reflection instance.
-	 */
-	public static FuzzyReflection fromClass(Class<?> source) {
-		return fromClass(source, false);
-	}
-	
-	/**
-	 * Retrieves a fuzzy reflection instance from a given class.
-	 * @param source - the class we'll use.
-	 * @param forceAccess - whether or not to override scope restrictions.
-	 * @return A fuzzy reflection instance.
-	 */
-	public static FuzzyReflection fromClass(Class<?> source, boolean forceAccess) {
-		return new FuzzyReflection(source, forceAccess);
-	}
-	
-	/**
-	 * Retrieves a fuzzy reflection instance from an object.
-	 * @param reference - the object we'll use.
-	 * @return A fuzzy reflection instance that uses the class of the given object.
-	 */
-	public static FuzzyReflection fromObject(Object reference) {
-		return new FuzzyReflection(reference.getClass(), false);
-	}
-	
-	/**
-	 * Retrieves a fuzzy reflection instance from an object.
-	 * @param reference - the object we'll use.
-	 * @param forceAccess - whether or not to override scope restrictions.
-	 * @return A fuzzy reflection instance that uses the class of the given object.
-	 */
-	public static FuzzyReflection fromObject(Object reference, boolean forceAccess) {
-		return new FuzzyReflection(reference.getClass(), forceAccess);
-	}
-	
-	/**
-	 * Retrieves the underlying class.
-	 */
-	public Class<?> getSource() {
-		return source;
-	}
-	
-	/**
-	 * Retrieves a method by looking at its name.
-	 * @param nameRegex -  regular expression that will match method names.
-	 * @return The first method that satisfies the regular expression.
-	 * @throws RuntimeException If the method cannot be found.
-	 */
-	public Method getMethodByName(String nameRegex) {
-		
-		Pattern match = Pattern.compile(nameRegex);
-		
-		for (Method method : getMethods()) {
-			if (match.matcher(method.getName()).matches()) {
-				// Right - this is probably it. 
-				return method;
-			}
-		}
-
-		throw new RuntimeException("Unable to find a method with the pattern " + 
-									nameRegex + " in " + source.getName());
-	}
-	
-	/**
-	 * Retrieves a method by looking at the parameter types only.
-	 * @param name - potential name of the method. Only used by the error mechanism.
-	 * @param args - parameter types of the method to find.
-	 * @return The first method that satisfies the parameter types.
-	 */
-	public Method getMethodByParameters(String name, Class<?>... args) {
-		
-		// Find the correct method to call
-		for (Method method : getMethods()) {
-			if (Arrays.equals(method.getParameterTypes(), args)) {
-				return method;
-			}
-		}
-		
-		// That sucks
-		throw new RuntimeException("Unable to find " + name + " in " + source.getName());
-	}
-	
-	/**
-	 * Retrieves a method by looking at the parameter types and return type only.
-	 * @param name - potential name of the method. Only used by the error mechanism.
-	 * @param returnType - return type of the method to find.
-	 * @param args - parameter types of the method to find.
-	 * @return The first method that satisfies the parameter types.
-	 */
-	public Method getMethodByParameters(String name, Class<?> returnType, Class<?>[] args) {
-		// Find the correct method to call
-		List<Method> methods = getMethodListByParameters(returnType, args);
-		
-		if (methods.size() > 0) {
-			return methods.get(0);
-		} else {
-			// That sucks
-			throw new RuntimeException("Unable to find " + name + " in " + source.getName());
-		}
-	}
-	
-	/**
-	 * Retrieves a method by looking at the parameter types and return type only.
-	 * @param name - potential name of the method. Only used by the error mechanism.
-	 * @param returnType - regular expression matching the return type of the method to find.
-	 * @param args - regular expressions of the matching parameter types.
-	 * @return The first method that satisfies the parameter types.
-	 */
-	public Method getMethodByParameters(String name, String returnTypeRegex, String[] argsRegex) {
-	
-		Pattern match = Pattern.compile(returnTypeRegex);
-		Pattern[] argMatch = new Pattern[argsRegex.length];
-		
-		for (int i = 0; i < argsRegex.length; i++) {
-			argMatch[i] = Pattern.compile(argsRegex[i]);
-		}
-		
-		// Find the correct method to call
-		for (Method method : getMethods()) {
-			if (match.matcher(method.getReturnType().getName()).matches()) {
-				if (matchParameters(argMatch, method.getParameterTypes()))
-					return method;
-			}
-		}
-		
-		// That sucks
-		throw new RuntimeException("Unable to find " + name + " in " + source.getName());
-	}
-	
-	private boolean matchParameters(Pattern[] parameterMatchers, Class<?>[] argTypes) {
-		if (parameterMatchers.length != argTypes.length)
-			throw new IllegalArgumentException("Arrays must have the same cardinality.");
-		
-		// Check types against the regular expressions
-		for (int i = 0; i < argTypes.length; i++) {
-			if (!parameterMatchers[i].matcher(argTypes[i].getName()).matches())
-				return false;
-		}
-		
-		return true;
-	}
-	
-	/**
-	 * Retrieves every method that has the given parameter types and return type.
-	 * @param returnType - return type of the method to find.
-	 * @param args - parameter types of the method to find.
-	 * @return Every method that satisfies the given constraints.
-	 */
-	public List<Method> getMethodListByParameters(Class<?> returnType, Class<?>[] args) {
-	
-		List<Method> methods = new ArrayList<Method>();
-		
-		// Find the correct method to call
-		for (Method method : getMethods()) {
-			if (method.getReturnType().equals(returnType) && Arrays.equals(method.getParameterTypes(), args)) {
-				methods.add(method);
-			}
-		}
-		
-		return methods;
-	}
-	
-	/**
-	 * Retrieves a field by name.
-	 * @param nameRegex - regular expression that will match a field name.
-	 * @return The first field to match the given expression.
-	 */
-	public Field getFieldByName(String nameRegex) {
-		
-		Pattern match = Pattern.compile(nameRegex);
-		
-		for (Field field : getFields()) {
-			if (match.matcher(field.getName()).matches()) {
-				// Right - this is probably it. 
-				return field;
-			}
-		}
-		
-		// Looks like we're outdated. Too bad.
-		throw new RuntimeException("Unable to find a field with the pattern " + 
-									nameRegex + " in " + source.getName());
-	}
-	
-	/**
-	 * Retrieves the first field with a type equal to or more specific to the given type.
-	 * @param name - name the field probably is given. This will only be used in the error message.
-	 * @param type - type of the field to find.
-	 * @return The first field with a type that is an instance of the given type.
-	 */
-	public Field getFieldByType(String name, Class<?> type) {
-		
-		List<Field> fields = getFieldListByType(type);
-		
-		if (fields.size() > 0) {
-			return fields.get(0);
-		} else {
-			// Looks like we're outdated. Too bad.
-			throw new RuntimeException(String.format("Unable to find a field %s with the type %s in %s",
-					name, type.getName(), source.getName())
-			);
-		}
-	}
-	
-	/**
-	 * Retrieves every field with a type equal to or more specific to the given type.
-	 * @param type - type of the fields to find.
-	 * @return Every field with a type that is an instance of the given type.
-	 */
-	public List<Field> getFieldListByType(Class<?> type) {
-		
-		List<Field> fields = new ArrayList<Field>();
-		
-		// Field with a compatible type
-		for (Field field : getFields()) {
-			// A assignable from B -> B instanceOf A
-			if (type.isAssignableFrom(field.getType())) {
-				fields.add(field);
-			}
-		}
-		
-		return fields;
-	}
-	
-	/**
-	 * Retrieves a field by type.
-	 * <p>
-	 * Note that the type is matched using the full canonical representation, i.e.: 
-	 * <ul>
-	 *     <li>java.util.List</li>
-	 *     <li>net.comphenix.xp.ExperienceMod</li>
-	 * </ul>
-	 * @param typeRegex - regular expression that will match the field type.
-	 * @return The first field with a type that matches the given regular expression.
-	 */
-	public Field getFieldByType(String typeRegex) {
-		
-		Pattern match = Pattern.compile(typeRegex);
-		
-		// Like above, only here we test the field type
-		for (Field field : getFields()) {
-			if (match.matcher(field.getType().getName()).matches()) {
-				return field;
-			}
-		}
-		
-		// Looks like we're outdated. Too bad.
-		throw new RuntimeException("Unable to find a field with the type " + 
-									typeRegex + " in " + source.getName());
-	}
-	
-	/**
-	 * Retrieves a field by type.
-	 * <p>
-	 * Note that the type is matched using the full canonical representation, i.e.: 
-	 * <ul>
-	 *     <li>java.util.List</li>
-	 *     <li>net.comphenix.xp.ExperienceMod</li>
-	 * </ul>
-	 * @param typeRegex - regular expression that will match the field type.
-	 * @param ignored - types to ignore.
-	 * @return The first field with a type that matches the given regular expression.
-	 */
-	@SuppressWarnings("rawtypes")
-	public Field getFieldByType(String typeRegex, Set<Class> ignored) {
-		
-		Pattern match = Pattern.compile(typeRegex);
-		
-		// Like above, only here we test the field type
-		for (Field field : getFields()) {
-			Class type = field.getType();
-			
-			if (!ignored.contains(type) && match.matcher(type.getName()).matches()) {
-				return field;
-			}
-		}
-		
-		// Looks like we're outdated. Too bad.
-		throw new RuntimeException("Unable to find a field with the type " + 
-									typeRegex + " in " + source.getName());
-	}
-	
-	/**
-	 * Retrieves all private and public fields in declared order (after JDK 1.5).
-	 * @return Every field.
-	 */
-	public Set<Field> getFields() {
-		// We will only consider private fields in the declared class
-		if (forceAccess)
-			return setUnion(source.getDeclaredFields(), source.getFields());
-		else
-			return setUnion(source.getFields());
-	}
-	
-	/**
-	 * Retrieves all private and public methods in declared order (after JDK 1.5).
-	 * @return Every method.
-	 */
-	public Set<Method> getMethods() {
-		// We will only consider private methods in the declared class
-		if (forceAccess)
-			return setUnion(source.getDeclaredMethods(), source.getMethods());
-		else
-			return setUnion(source.getMethods());
-	}
-	
-	// Prevent duplicate fields
-	private static <T> Set<T> setUnion(T[]... array) {
-		Set<T> result = new LinkedHashSet<T>();
-		
-		for (T[] elements : array) {
-			for (T element : elements) {
-				result.add(element);
-			}
-		}
-		
-		return result;
-	}
-	
-	/**
-	 * Retrieves whether or not not to override any scope restrictions.
-	 * @return TRUE if we override scope, FALSE otherwise.
-	 */
-	public boolean isForceAccess() {
-		return forceAccess;
-	}
-
-	/**
-	 * Sets whether or not not to override any scope restrictions.
-	 * @param forceAccess - TRUE if we override scope, FALSE otherwise.
-	 */
-	public void setForceAccess(boolean forceAccess) {
-		this.forceAccess = forceAccess;
-	}
-}

ProtocolLib/src/com/comphenix/protocol/reflect/PrimitiveUtils.java

@@ -1,124 +0,0 @@
-package com.comphenix.protocol.reflect;
-
-/*
- * Copyright (C) 2008 Google Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import java.lang.reflect.Type;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-
-/**
- * Contains static utility methods pertaining to primitive types and their
- * corresponding wrapper types.
- * 
- * @author Kevin Bourrillion
- */
-public final class PrimitiveUtils {
-	private PrimitiveUtils() {
-	}
-
-	/** A map from primitive types to their corresponding wrapper types. */
-	private static final Map<Class<?>, Class<?>> PRIMITIVE_TO_WRAPPER_TYPE;
-
-	/** A map from wrapper types to their corresponding primitive types. */
-	private static final Map<Class<?>, Class<?>> WRAPPER_TO_PRIMITIVE_TYPE;
-
-	// Sad that we can't use a BiMap. :(
-	static {
-		Map<Class<?>, Class<?>> primToWrap = new HashMap<Class<?>, Class<?>>(16);
-		Map<Class<?>, Class<?>> wrapToPrim = new HashMap<Class<?>, Class<?>>(16);
-
-		add(primToWrap, wrapToPrim, boolean.class, Boolean.class);
-		add(primToWrap, wrapToPrim, byte.class, Byte.class);
-		add(primToWrap, wrapToPrim, char.class, Character.class);
-		add(primToWrap, wrapToPrim, double.class, Double.class);
-		add(primToWrap, wrapToPrim, float.class, Float.class);
-		add(primToWrap, wrapToPrim, int.class, Integer.class);
-		add(primToWrap, wrapToPrim, long.class, Long.class);
-		add(primToWrap, wrapToPrim, short.class, Short.class);
-		add(primToWrap, wrapToPrim, void.class, Void.class);
-
-		PRIMITIVE_TO_WRAPPER_TYPE = Collections.unmodifiableMap(primToWrap);
-		WRAPPER_TO_PRIMITIVE_TYPE = Collections.unmodifiableMap(wrapToPrim);
-	}
-
-	private static void add(Map<Class<?>, Class<?>> forward,
-			Map<Class<?>, Class<?>> backward, Class<?> key, Class<?> value) {
-		forward.put(key, value);
-		backward.put(value, key);
-	}
-
-	/**
-	 * Returns true if this type is a primitive.
-	 */
-	public static boolean isPrimitive(Type type) {
-		return PRIMITIVE_TO_WRAPPER_TYPE.containsKey(type);
-	}
-
-	/**
-	 * Returns {@code true} if {@code type} is one of the nine primitive-wrapper
-	 * types, such as {@link Integer}.
-	 * 
-	 * @see Class#isPrimitive
-	 */
-	public static boolean isWrapperType(Type type) {
-		return WRAPPER_TO_PRIMITIVE_TYPE.containsKey(checkNotNull(type));
-	}
-
-	/**
-	 * Returns the corresponding wrapper type of {@code type} if it is a
-	 * primitive type; otherwise returns {@code type} itself. Idempotent.
-	 * 
-	 * <pre>
-	 *     wrap(int.class) == Integer.class
-	 *     wrap(Integer.class) == Integer.class
-	 *     wrap(String.class) == String.class
-	 * </pre>
-	 */
-	public static <T> Class<T> wrap(Class<T> type) {
-		// cast is safe: long.class and Long.class are both of type Class<Long>
-		@SuppressWarnings("unchecked")
-		Class<T> wrapped = (Class<T>) PRIMITIVE_TO_WRAPPER_TYPE
-				.get(checkNotNull(type));
-		return (wrapped == null) ? type : wrapped;
-	}
-
-	/**
-	 * Returns the corresponding primitive type of {@code type} if it is a
-	 * wrapper type; otherwise returns {@code type} itself. Idempotent.
-	 * 
-	 * <pre>
-	 *     unwrap(Integer.class) == int.class
-	 *     unwrap(int.class) == int.class
-	 *     unwrap(String.class) == String.class
-	 * </pre>
-	 */
-	public static <T> Class<T> unwrap(Class<T> type) {
-		// cast is safe: long.class and Long.class are both of type Class<Long>
-		@SuppressWarnings("unchecked")
-		Class<T> unwrapped = (Class<T>) WRAPPER_TO_PRIMITIVE_TYPE
-				.get(checkNotNull(type));
-		return (unwrapped == null) ? type : unwrapped;
-	}
-	
-	public static <T> T checkNotNull(T obj) {
-		if (obj == null) {
-			throw new NullPointerException();
-		}
-		return obj;
-	}
-}

ProtocolLib/src/com/comphenix/protocol/reflect/StructureModifier.java

@@ -1,463 +0,0 @@
-/*
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2012 Kristian S. Stangeland
- *
- *  This program is free software; you can redistribute it and/or modify it under the terms of the 
- *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
- *  the License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
- *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
- *  See the GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along with this program; 
- *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
- *  02111-1307 USA
- */
-
-package com.comphenix.protocol.reflect;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.Modifier;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-
-import com.comphenix.protocol.reflect.compiler.BackgroundCompiler;
-import com.comphenix.protocol.reflect.instances.DefaultInstances;
-import com.google.common.base.Function;
-import com.google.common.collect.ImmutableList;
-
-/**
- * Provides list-oriented access to the fields of a Minecraft packet.
- * <p>
- * Implemented by using reflection. Use a CompiledStructureModifier, if speed is essential.
- * 
- * @author Kristian
- * @param <TField> Type of the fields to retrieve.
- */
-@SuppressWarnings("rawtypes")
-public class StructureModifier<TField> {
-	
-	// Object and its type
-	protected Class targetType;
-	protected Object target;
-	
-	// Converter. May be NULL.
-	protected EquivalentConverter<TField> converter;
-	
-	// The fields to read in order
-	protected Class fieldType;
-	protected List<Field> data = new ArrayList<Field>();
-	
-	// Improved default values
-	protected Map<Field, Integer> defaultFields;
-	
-	// Cache of previous types
-	protected Map<Class, StructureModifier> subtypeCache;
-	
-	// Whether or subclasses should handle conversion
-	protected boolean customConvertHandling;
-	
-	/**
-	 * Creates a structure modifier.
-	 * @param targetType - the structure to modify.
-	 * @param superclassExclude - a superclass to exclude.
-	 * @param requireDefault - whether or not we will be using writeDefaults().
-	 */
-	public StructureModifier(Class targetType, Class superclassExclude, boolean requireDefault) {
-		List<Field> fields = getFields(targetType, superclassExclude);
-		Map<Field, Integer> defaults = requireDefault ? generateDefaultFields(fields) : new HashMap<Field, Integer>();
-		
-		initialize(targetType, Object.class, fields, defaults, null, new ConcurrentHashMap<Class, StructureModifier>());
-	}
-	
-	/**
-	 * Consumers of this method should call "initialize".
-	 */
-	protected StructureModifier() {
-		
-	}
-	
-	/**
-	 * Initialize using the same field types.
-	 * @param other - information to set.
-	 */
-	protected void initialize(StructureModifier<TField> other) {
-		initialize(other.targetType, other.fieldType, other.data, 
-				   other.defaultFields, other.converter, other.subtypeCache);
-	}
-	
-	/**
-	 * Initialize every field of this class.
-	 * @param targetType - type of the object we're reading and writing from.
-	 * @param fieldType - the common type of the fields we're modifying.
-	 * @param data - list of fields to modify.
-	 * @param defaultFields - list of fields that will be automatically initialized.
-	 * @param converter - converts between the common field type and the actual type the consumer expects.
-	 * @param subTypeCache - a structure modifier cache.
-	 */
-	protected void initialize(Class targetType, Class fieldType, 
-			  List<Field> data, Map<Field, Integer> defaultFields,
-			  EquivalentConverter<TField> converter, Map<Class, StructureModifier> subTypeCache) {
-		this.targetType = targetType;
-		this.fieldType = fieldType;
-		this.data = data;
-		this.defaultFields = defaultFields;
-		this.converter = converter;
-		this.subtypeCache = subTypeCache;
-	}
-	
-	/**
-	 * Reads the value of a field given its index.
-	 * @param fieldIndex - index of the field.
-	 * @return Value of the field.
-	 * @throws FieldAccessException The field doesn't exist, or it cannot be accessed under the current security contraints.
-	 */
-	@SuppressWarnings("unchecked")
-	public TField read(int fieldIndex) throws FieldAccessException {
-		if (fieldIndex < 0 || fieldIndex >= data.size())
-			throw new FieldAccessException("Field index must be within 0 - count", 
-					new IndexOutOfBoundsException("Out of bounds"));
-		if (target == null)
-			throw new IllegalStateException("Cannot read from a NULL target.");
-		
-		try {
-			Object result = FieldUtils.readField(data.get(fieldIndex), target, true);
-			
-			// Use the converter, if we have it
-			if (needConversion())
-				return converter.getSpecific(result);
-			else
-				return (TField) result;
-			
-		} catch (IllegalAccessException e) {
-			throw new FieldAccessException("Cannot read field due to a security limitation.", e);
-		}
-	}
-
-	/**
-	 * Reads the value of a field if and ONLY IF it exists.
-	 * @param fieldIndex - index of the field.
-	 * @return Value of the field, or NULL if it doesn't exist.
-	 * @throws FieldAccessException The field cannot be accessed under the current security contraints.
-	 */
-	public TField readSafely(int fieldIndex) throws FieldAccessException {
-		if (fieldIndex >= 0 && fieldIndex < data.size()) {
-			return read(fieldIndex);
-		} else {
-			return null;
-		}
-	}
-	
-	/**
-	 * Writes the value of a field given its index.
-	 * @param fieldIndex - index of the field.
-	 * @param value - new value of the field.
-	 * @return This structure modifier - for chaining.
-	 * @throws FieldAccessException The field doesn't exist, or it cannot be accessed under the current security contraints.
-	 */
-	public StructureModifier<TField> write(int fieldIndex, TField value) throws FieldAccessException {
-		if (fieldIndex < 0 || fieldIndex >= data.size())
-			throw new FieldAccessException("Field index must be within 0 - count", 
-					new IndexOutOfBoundsException("Out of bounds"));
-		if (target == null)
-			throw new IllegalStateException("Cannot write to a NULL target.");
-		
-		// Use the converter, if it exists
-		Object obj = needConversion() ? converter.getGeneric(value) : value;
-		
-		try {
-			FieldUtils.writeField(data.get(fieldIndex), target, obj, true);
-		} catch (IllegalAccessException e) {
-			throw new FieldAccessException("Cannot read field due to a security limitation.", e);
-		}
-		
-		// Make this method chainable
-		return this;
-	}
-	
-	/**
-	 * Whether or not we should use the converter instance.
-	 * @return TRUE if we should, FALSE otherwise.
-	 */
-	private final boolean needConversion() {
-		return converter != null && !customConvertHandling;
-	}
-	
-	/**
-	 * Writes the value of a given field IF and ONLY if it exists.
-	 * @param fieldIndex - index of the potential field.
-	 * @param value - new value of the field.
-	 * @return This structure modifer - for chaining.
-	 * @throws FieldAccessException The field cannot be accessed under the current security contraints.
-	 */
-	public StructureModifier<TField> writeSafely(int fieldIndex, TField value) throws FieldAccessException {
-		if (fieldIndex >= 0 && fieldIndex < data.size()) {
-			write(fieldIndex, value);
-		}
-		return this;
-	}
-	
-	/**
-	 * Correctly modifies the value of a field.
-	 * @param fieldIndex - index of the field to modify.
-	 * @param select - the function that modifies the field value.
-	 * @return This structure modifier - for chaining.
-	 * @throws FieldAccessException The field cannot be accessed under the current security contraints.
-	 */
-	public StructureModifier<TField> modify(int fieldIndex, Function<TField, TField> select) throws FieldAccessException {
-		TField value = read(fieldIndex);
-		return write(fieldIndex, select.apply(value));
-	}
-	
-	/**
-	 * Retrieves a structure modifier that only reads and writes fields of a given type.
-	 * @param fieldType - the type, or supertype, of every field to modify.
-	 * @return A structure modifier for fields of this type.
-	 */
-	public <T> StructureModifier<T> withType(Class fieldType) {
-		return withType(fieldType, null);
-	}
-	
-	/**
-	 * Sets all non-primitive fields to a more fitting default value. See {@link DefaultInstances#getDefault(Class)}.
-	 * @return The current structure modifier - for chaining.
-	 * @throws FieldAccessException If we're unable to write to the fields due to a security limitation.
-	 */
-	public StructureModifier<TField> writeDefaults() throws FieldAccessException {
-		
-		DefaultInstances generator = DefaultInstances.DEFAULT;
-		
-		// Write a default instance to every field
-		for (Field field : defaultFields.keySet()) {
-			try {
-				FieldUtils.writeField(field, target, 
-						generator.getDefault(field.getType()), true);
-			} catch (IllegalAccessException e) {
-				throw new FieldAccessException("Cannot write to field due to a security limitation.", e);
-			}
-		}
-		
-		return this;
-	}
-	
-	/**
-	 * Retrieves a structure modifier that only reads and writes fields of a given type.
-	 * @param fieldType - the type, or supertype, of every field to modify.
-	 * @param converter - converts objects into the given type.
-	 * @return A structure modifier for fields of this type.
-	 */
-	@SuppressWarnings("unchecked")
-	public <T> StructureModifier<T> withType(Class fieldType, EquivalentConverter<T> converter) {
-		
-		StructureModifier<T> result = subtypeCache.get(fieldType);
-		
-		// Do we need to update the cache?
-		if (result == null) {
-			List<Field> filtered = new ArrayList<Field>();
-			Map<Field, Integer> defaults = new HashMap<Field, Integer>();
-			int index = 0;
-			
-			for (Field field : data) {
-				if (fieldType != null && fieldType.isAssignableFrom(field.getType())) {
-					filtered.add(field);
-					
-					// Don't use the original index
-					if (defaultFields.containsKey(field))
-						defaults.put(field, index);
-				}
-				
-				// Keep track of the field index
-				index++;
-			}
-			
-			// Cache structure modifiers
-			result = withFieldType(fieldType, filtered, defaults, converter);
-			
-			if (fieldType != null) {
-				subtypeCache.put(fieldType, result);
-				
-				// Automatically compile the structure modifier
-				if (BackgroundCompiler.getInstance() != null) 
-					BackgroundCompiler.getInstance().scheduleCompilation(subtypeCache, fieldType);
-			}
-		}
-		
-		// Add the target too
-		result = result.withTarget(target);
-		
-		// And the converter, if it's needed
-		if (!sameConverter(result.converter, converter)) {
-			result = result.withConverter(converter);
-		}
-		
-		return result;
-	}
-	
-	private boolean sameConverter(EquivalentConverter<?> a, EquivalentConverter<?> b) {
-		// Compare the converter types
-		if (a == null)
-			return b == null;
-		else if (b == null)
-			return a == null;
-		else
-			return a.getSpecificType().equals(b.getSpecificType());
-	}
-	
-	/**
-	 * Retrieves the common type of each field.
-	 * @return Common type of each field.
-	 */
-	public Class getFieldType() {
-		return fieldType;
-	}
-	
-	/**
-	 * Retrieves the type of the object we're modifying.
-	 * @return Type of the object.
-	 */
-	public Class getTargetType() {
-		return targetType;
-	}
-	
-	/**
-	 * Retrieves the object we're currently modifying.
-	 * @return Object we're modifying.
-	 */
-	public Object getTarget() {
-		return target;
-	}
-	
-	/**
-	 * Retrieve the number of readable types.
-	 * @return Readable types.
-	 */
-	public int size() {
-		return data.size();
-	}
-	
-	/**
-	 * Create a new structure modifier for the new field type.
-	 * @param fieldType - common type of each field.
-	 * @param filtered - list of fields after filtering the original modifier.
-	 * @param defaults - list of default values after filtering the original.
-	 * @param converter - the new converter.
-	 * @return A new structure modifier.
-	 */
-	protected <T> StructureModifier<T> withFieldType(
-			Class fieldType, List<Field> filtered, 
-			Map<Field, Integer> defaults, EquivalentConverter<T> converter) {
-		
-		StructureModifier<T> result = new StructureModifier<T>();
-		result.initialize(targetType, fieldType, filtered, defaults, 
-						  converter, new ConcurrentHashMap<Class, StructureModifier>());
-		return result;
-	}
-	
-	/**
-	 * Retrieves a structure modifier of the same type for a different object target.
-	 * @param target - different target of the same type.
-	 * @return Structure modifier with the new target.
-	 */
-	public StructureModifier<TField> withTarget(Object target) {
-		StructureModifier<TField> copy = new StructureModifier<TField>();
-		
-		// Create a new instance
-		copy.initialize(targetType, fieldType, data, defaultFields, converter, subtypeCache);
-		copy.target = target;
-		return copy;
-	}
-	
-	/**
-	 * Retrieves a structure modifier with the same type and target, but using a new object converter.
-	 * @param converter - the object converter to use.
-	 * @return Structure modifier with the new converter.
-	 */
-	@SuppressWarnings("unchecked")
-	private <T> StructureModifier<T> withConverter(EquivalentConverter<T> converter) {
-		StructureModifier copy = withTarget(target);
-		
-		copy.setConverter(converter);
-		return copy;
-	}
-	
-	/**
-	 * Set the current object converter. Should only be called during construction.
-	 * @param converter - current object converter.
-	 */
-	protected void setConverter(EquivalentConverter<TField> converter) {
-		this.converter = converter;
-	}
-	
-	/**
-	 * Retrieves a list of the fields matching the constraints of this structure modifier.
-	 * @return List of fields.
-	 */
-	public List<Field> getFields() {
-		return ImmutableList.copyOf(data);
-	}
-
-	/**
-	 * Retrieve every value stored in the fields of the current type.
-	 * @return Every field value.
-	 * @throws FieldAccessException Unable to access one or all of the fields
-	 */
-	public List<TField> getValues() throws FieldAccessException {
-		List<TField> values = new ArrayList<TField>();
-		
-		for (int i = 0; i < size(); i++) {
-			values.add(read(i));
-		}
-		
-		return values;
-	}
-	
-	// Used to generate plausible default values
-	private static Map<Field, Integer> generateDefaultFields(List<Field> fields) {
-		
-		Map<Field, Integer> requireDefaults = new HashMap<Field, Integer>();
-		DefaultInstances generator = DefaultInstances.DEFAULT;
-		int index = 0;
-		
-		for (Field field : fields) {
-			Class<?> type = field.getType();
-			
-			// First, ignore primitive fields
-			if (!PrimitiveUtils.isPrimitive(type)) {
-				// Next, see if we actually can generate a default value
-				if (generator.getDefault(type) != null) {
-					// If so, require it
-					requireDefaults.put(field, index);
-				}
-			}
-			
-			// Increment field index
-			index++;
-		}
-		
-		return requireDefaults;
-	}
-	
-	// Used to filter out irrelevant fields
-	private static List<Field> getFields(Class type, Class superclassExclude) {
-		List<Field> result = new ArrayList<Field>();
-		
-		// Retrieve every private and public field
-		for (Field field : FuzzyReflection.fromClass(type, true).getFields()) {
-			int mod = field.getModifiers();
-			
-			// Ignore static, final and "abstract packet" fields
-			if (!Modifier.isFinal(mod) && !Modifier.isStatic(mod) && (
-					superclassExclude == null || !field.getDeclaringClass().equals(superclassExclude)
-				)) {
-				
-				result.add(field);
-			}
-		}
-		
-		return result;
-	}
-}

ProtocolLib/src/com/comphenix/protocol/reflect/compiler/BackgroundCompiler.java

@@ -1,183 +0,0 @@
-package com.comphenix.protocol.reflect.compiler;
-
-import java.util.Map;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.RejectedExecutionException;
-import java.util.concurrent.TimeUnit;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-
-import com.comphenix.protocol.reflect.StructureModifier;
-
-/**
- * Compiles structure modifiers on a background thread.
- * <p>
- * This is necessary as we cannot block the main thread.
- * 
- * @author Kristian
- */
-public class BackgroundCompiler {
-
-	// How long to wait for a shutdown
-	public static final int SHUTDOWN_DELAY_MS = 2000;
-	
-	// The single background compiler we're using
-	private static BackgroundCompiler backgroundCompiler;
-	
-	private StructureCompiler compiler;
-	private boolean enabled;
-	private boolean shuttingDown;
-	
-	private ExecutorService executor;
-	
-	/**
-	 * Retrieves the current background compiler.
-	 * @return Current background compiler.
-	 */
-	public static BackgroundCompiler getInstance() {
-		return backgroundCompiler;
-	}
-	
-	/**
-	 * Sets the single background compiler we're using.
-	 * @param backgroundCompiler - current background compiler, or NULL if the library is not loaded.
-	 */
-	public static void setInstance(BackgroundCompiler backgroundCompiler) {
-		BackgroundCompiler.backgroundCompiler = backgroundCompiler;
-	}
-	
-	/**
-	 * Initialize a background compiler.
-	 * @param loader - class loader from Bukkit.
-	 */
-	public BackgroundCompiler(ClassLoader loader) {
-		this(loader, Executors.newSingleThreadExecutor());
-	}
-
-	/**
-	 * Initialize a background compiler utilizing the given thread pool.
-	 * @param loader - class loader from Bukkit.
-	 * @param executor - thread pool we'll use.
-	 */
-	public BackgroundCompiler(ClassLoader loader, ExecutorService executor) {
-		if (loader == null)
-			throw new IllegalArgumentException("loader cannot be NULL");
-		if (executor == null)
-			throw new IllegalArgumentException("executor cannot be NULL");
-		
-		this.compiler = new StructureCompiler(loader);
-		this.executor = executor;
-		this.enabled = true;
-	}
-	
-	/**
-	 * Ensure that the indirectly given structure modifier is eventually compiled.
-	 * @param cache - store of structure modifiers.
-	 * @param key - key of the structure modifier to compile.
-	 */
-	@SuppressWarnings("rawtypes")
-	public void scheduleCompilation(final Map<Class, StructureModifier> cache, final Class key) {
-		
-		@SuppressWarnings("unchecked")
-		final StructureModifier<Object> uncompiled = cache.get(key);
-		
-		if (uncompiled != null) {
-			scheduleCompilation(uncompiled, new CompileListener<Object>() {
-				@Override
-				public void onCompiled(StructureModifier<Object> compiledModifier) {
-					// Update cache
-					cache.put(key, compiledModifier);
-				}
-			});
-		}
-	}
-	
-	/**
-	 * Ensure that the given structure modifier is eventually compiled.
-	 * @param uncompiled - structure modifier to compile.
-	 * @param listener - listener responsible for responding to the compilation.
-	 */
-	public <TKey> void scheduleCompilation(final StructureModifier<TKey> uncompiled, final CompileListener<TKey> listener) {
-
-		// Only schedule if we're enabled
-		if (enabled && !shuttingDown) {
-			
-			// Don't try to schedule anything
-			if (executor == null || executor.isShutdown())
-				return;
-			
-			try {
-				executor.submit(new Callable<Object>() {
-					@Override
-					public Object call() throws Exception {
-		
-						StructureModifier<TKey> modifier = uncompiled;
-						
-						// Do our compilation
-						modifier = compiler.compile(modifier);
-						listener.onCompiled(modifier);
-						
-						// We'll also return the new structure modifier
-						return modifier;
-					}
-				});
-			} catch (RejectedExecutionException e) {
-				// Occures when the underlying queue is overflowing. Since the compilation  
-				// is only an optmization and not really essential we'll just log this failure 
-				// and move on.
-				Logger.getLogger("Minecraft").log(Level.WARNING, "Unable to schedule compilation task.", e);
-			}
-		}
-	}
-	
-	/**
-	 * Clean up after ourselves using the default timeout.
-	 */
-	public void shutdownAll() {
-		shutdownAll(SHUTDOWN_DELAY_MS, TimeUnit.MILLISECONDS);
-	}
-	
-	/**
-	 * Clean up after ourselves.
-	 * @param timeout - the maximum time to wait.
-	 * @param unit - the time unit of the timeout argument.
-	 */
-	public void shutdownAll(long timeout, TimeUnit unit) {
-		setEnabled(false);
-		shuttingDown = true;
-		executor.shutdown();
-		
-		try {
-			executor.awaitTermination(timeout, unit);
-		} catch (InterruptedException e) {
-			// Unlikely to ever occur.
-			e.printStackTrace();
-		}
-	}
-	
-	/**
-	 * Retrieve whether or not the background compiler is enabled.
-	 * @return TRUE if it is enabled, FALSE otherwise.
-	 */
-	public boolean isEnabled() {
-		return enabled;
-	}
-
-	/**
-	 * Sets whether or not the background compiler is enabled.
-	 * @param enabled - TRUE to enable it, FALSE otherwise.
-	 */
-	public void setEnabled(boolean enabled) {
-		this.enabled = enabled;
-	}
-
-	/**
-	 * Retrieve the current structure compiler.
-	 * @return Current structure compiler.
-	 */
-	public StructureCompiler getCompiler() {
-		return compiler;
-	}
-}

ProtocolLib/src/com/comphenix/protocol/reflect/compiler/BoxingHelper.java

@@ -1,275 +0,0 @@
-package com.comphenix.protocol.reflect.compiler;
-
-import net.sf.cglib.asm.*;
-
-/**
- * Used by the compiler to automatically box and unbox values.
- */
-class BoxingHelper {
-
-	private final static Type BYTE_TYPE = Type.getObjectType("java/lang/Byte");
-	private final static Type BOOLEAN_TYPE = Type.getObjectType("java/lang/Boolean");
-	private final static Type SHORT_TYPE = Type.getObjectType("java/lang/Short");
-	private final static Type CHARACTER_TYPE = Type.getObjectType("java/lang/Character");
-	private final static Type INTEGER_TYPE = Type.getObjectType("java/lang/Integer");
-	private final static Type FLOAT_TYPE = Type.getObjectType("java/lang/Float");
-	private final static Type LONG_TYPE = Type.getObjectType("java/lang/Long");
-	private final static Type DOUBLE_TYPE = Type.getObjectType("java/lang/Double");
-	private final static Type NUMBER_TYPE = Type.getObjectType("java/lang/Number");
-	private final static Type OBJECT_TYPE = Type.getObjectType("java/lang/Object");
-
-	private final static MethodDescriptor BOOLEAN_VALUE = MethodDescriptor.getMethod("boolean booleanValue()");
-	private final static MethodDescriptor CHAR_VALUE = MethodDescriptor.getMethod("char charValue()");
-	private final static MethodDescriptor INT_VALUE = MethodDescriptor.getMethod("int intValue()");
-	private final static MethodDescriptor FLOAT_VALUE = MethodDescriptor.getMethod("float floatValue()");
-	private final static MethodDescriptor LONG_VALUE = MethodDescriptor.getMethod("long longValue()");
-	private final static MethodDescriptor DOUBLE_VALUE = MethodDescriptor.getMethod("double doubleValue()");
-
-	private MethodVisitor mv;
-	
-	public BoxingHelper(MethodVisitor mv) {
-		this.mv = mv;
-	}
-	
-	/**
-	 * Generates the instructions to box the top stack value. This value is
-	 * replaced by its boxed equivalent on top of the stack.
-	 *
-	 * @param type the type of the top stack value.
-	 */
-	public void box(final Type type){
-		if(type.getSort() == Type.OBJECT || type.getSort() == Type.ARRAY) {
-			return;
-		}
-		
-		if(type == Type.VOID_TYPE) {
-			push((String) null);
-		} else {
-			Type boxed = type;
-			
-			switch(type.getSort()) {
-				case Type.BYTE:
-					boxed = BYTE_TYPE;
-					break;
-				case Type.BOOLEAN:
-					boxed = BOOLEAN_TYPE;
-					break;
-				case Type.SHORT:
-					boxed = SHORT_TYPE;
-					break;
-				case Type.CHAR:
-					boxed = CHARACTER_TYPE;
-					break;
-				case Type.INT:
-					boxed = INTEGER_TYPE;
-					break;
-				case Type.FLOAT:
-					boxed = FLOAT_TYPE;
-					break;
-				case Type.LONG:
-					boxed = LONG_TYPE;
-					break;
-				case Type.DOUBLE:
-					boxed = DOUBLE_TYPE;
-					break;
-			}
-			
-			newInstance(boxed);
-			if(type.getSize() == 2) {
-				// Pp -> Ppo -> oPpo -> ooPpo -> ooPp -> o
-				dupX2();
-				dupX2();
-				pop();
-			} else {
-				// p -> po -> opo -> oop -> o
-				dupX1();
-				swap();
-			}
-			
-			invokeConstructor(boxed, new MethodDescriptor("<init>", Type.VOID_TYPE, new Type[] {type}));
-		}
-	}
-	
-	/**
-	 * Generates the instruction to invoke a constructor.
-	 *
-	 * @param type   the class in which the constructor is defined.
-	 * @param method the constructor to be invoked.
-	 */
-	public void invokeConstructor(final Type type, final MethodDescriptor method){
-		invokeInsn(Opcodes.INVOKESPECIAL, type, method);
-	}
-	
-	/**
-	 * Generates a DUP_X1 instruction.
-	 */
-	public void dupX1(){
-		mv.visitInsn(Opcodes.DUP_X1);
-	}
-
-	/**
-	 * Generates a DUP_X2 instruction.
-	 */
-	public void dupX2(){
-		mv.visitInsn(Opcodes.DUP_X2);
-	}
-	
-	/**
-	 * Generates a POP instruction.
-	 */
-	public void pop(){
-		mv.visitInsn(Opcodes.POP);
-	}
-
-	/**
-	 * Generates a SWAP instruction.
-	 */
-	public void swap(){
-		mv.visitInsn(Opcodes.SWAP);
-	}
-	
-	/**
-	 * Generates the instruction to push the given value on the stack.
-	 *
-	 * @param value the value to be pushed on the stack.
-	 */
-	public void push(final boolean value){
-		push(value ? 1 : 0);
-	}
-	
-	/**
-	 * Generates the instruction to push the given value on the stack.
-	 * 
-	 * @param value the value to be pushed on the stack.
-	 */
-	public void push(final int value) {
-		if (value >= -1 && value <= 5) {
-			mv.visitInsn(Opcodes.ICONST_0 + value);
-		} else if (value >= Byte.MIN_VALUE && value <= Byte.MAX_VALUE) {
-			mv.visitIntInsn(Opcodes.BIPUSH, value);
-		} else if (value >= Short.MIN_VALUE && value <= Short.MAX_VALUE) {
-			mv.visitIntInsn(Opcodes.SIPUSH, value);
-		} else {
-			mv.visitLdcInsn(new Integer(value));
-		}
-	}
-
-	/**
-	 * Generates the instruction to create a new object.
-	 *
-	 * @param type the class of the object to be created.
-	 */
-	public void newInstance(final Type type){
-		typeInsn(Opcodes.NEW, type);
-	}
-	
-	/**
-	 * Generates the instruction to push the given value on the stack.
-	 * 
-	 * @param value the value to be pushed on the stack. May be <tt>null</tt>.
-	 */
-	public void push(final String value) {
-		if (value == null) {
-			mv.visitInsn(Opcodes.ACONST_NULL);
-		} else {
-			mv.visitLdcInsn(value);
-		}
-	}
-
-	/**
-	 * Generates the instructions to unbox the top stack value. This value is
-	 * replaced by its unboxed equivalent on top of the stack.
-	 * 
-	 * @param type
-	 *            the type of the top stack value.
-	 */
-	public void unbox(final Type type){
-		Type t = NUMBER_TYPE;
-		MethodDescriptor sig = null;
-		
-		switch(type.getSort()) {
-			case Type.VOID:
-				return;
-			case Type.CHAR:
-				t = CHARACTER_TYPE;
-				sig = CHAR_VALUE;
-				break;
-			case Type.BOOLEAN:
-				t = BOOLEAN_TYPE;
-				sig = BOOLEAN_VALUE;
-				break;
-			case Type.DOUBLE:
-				sig = DOUBLE_VALUE;
-				break;
-			case Type.FLOAT:
-				sig = FLOAT_VALUE;
-				break;
-			case Type.LONG:
-				sig = LONG_VALUE;
-				break;
-			case Type.INT:
-			case Type.SHORT:
-			case Type.BYTE:
-				sig = INT_VALUE;
-			}
-		
-		if(sig == null) {
-			checkCast(type);
-		} else {
-			checkCast(t);
-			invokeVirtual(t, sig);
-		}
-	}
-
-	/**
-	 * Generates the instruction to check that the top stack value is of the
-	 * given type.
-	 *
-	 * @param type a class or interface type.
-	 */
-	public void checkCast(final Type type){
-		if(!type.equals(OBJECT_TYPE)) {
-			typeInsn(Opcodes.CHECKCAST, type);
-		}
-	}
-	
-	/**
-	 * Generates the instruction to invoke a normal method.
-	 *
-	 * @param owner  the class in which the method is defined.
-	 * @param method the method to be invoked.
-	 */
-	public void invokeVirtual(final Type owner, final MethodDescriptor method){
-		invokeInsn(Opcodes.INVOKEVIRTUAL, owner, method);
-	}
-	
-	/**
-	 * Generates an invoke method instruction.
-	 *
-	 * @param opcode the instruction's opcode.
-	 * @param type   the class in which the method is defined.
-	 * @param method the method to be invoked.
-	 */
-	private void invokeInsn(final int opcode, final Type type, final MethodDescriptor method){
-		String owner = type.getSort() == Type.ARRAY ? type.getDescriptor() : type.getInternalName();
-		mv.visitMethodInsn(opcode, owner, method.getName(), method.getDescriptor());
-	}
-	
-	/**
-	 * Generates a type dependent instruction.
-	 *
-	 * @param opcode the instruction's opcode.
-	 * @param type   the instruction's operand.
-	 */
-	private void typeInsn(final int opcode, final Type type){
-		String desc;
-		
-		if(type.getSort() == Type.ARRAY) {
-			desc = type.getDescriptor();
-		} else { 
-			desc = type.getInternalName();
-		}
-		
-		mv.visitTypeInsn(opcode, desc);
-	}
-}

ProtocolLib/src/com/comphenix/protocol/reflect/compiler/CompileListener.java

@@ -1,17 +0,0 @@
-package com.comphenix.protocol.reflect.compiler;
-
-import com.comphenix.protocol.reflect.StructureModifier;
-
-/**
- * Used to save the result of an compilation.
- * 
- * @author Kristian
- * @param <TKey> - type of the structure modifier field.
- */
-public interface CompileListener<TKey> {
-	/**
-	 * Invoked when a structure modifier has been successfully compiled.
-	 * @param compiledModifier - the compiled structure modifier.
-	 */
-	public void onCompiled(StructureModifier<TKey> compiledModifier);
-}

ProtocolLib/src/com/comphenix/protocol/reflect/compiler/CompiledStructureModifier.java

@@ -1,73 +0,0 @@
-package com.comphenix.protocol.reflect.compiler;
-
-import java.lang.reflect.Field;
-import java.util.Map;
-
-import com.comphenix.protocol.reflect.FieldAccessException;
-import com.comphenix.protocol.reflect.StructureModifier;
-import com.comphenix.protocol.reflect.instances.DefaultInstances;
-
-/**
- * Represents a compiled structure modifier.
- * 
- * @author Kristian
- * @param <TField> Field type.
- */
-public abstract class CompiledStructureModifier<TField> extends StructureModifier<TField> {
-	// Used to compile instances of structure modifiers
-	protected StructureCompiler compiler;
-	
-	public CompiledStructureModifier() {
-		super();
-		customConvertHandling = true;
-	}
-	
-	// Speed up the default writer
-	@SuppressWarnings("unchecked")
-	@Override
-	public StructureModifier<TField> writeDefaults() throws FieldAccessException {
-		
-		DefaultInstances generator = DefaultInstances.DEFAULT;
-		
-		// Write a default instance to every field
-		for (Map.Entry<Field, Integer> entry  : defaultFields.entrySet()) {
-			Integer index = entry.getValue();
-			Field field = entry.getKey();
-			
-			write(index, (TField) generator.getDefault(field.getType()));
-		}
-		
-		return this;
-	}
-	
-	@SuppressWarnings("unchecked")
-	@Override
-	public final TField read(int fieldIndex) throws FieldAccessException {
-		Object result = readGenerated(fieldIndex);
-		
-		if (converter != null)
-			return converter.getSpecific(result);
-		else
-			return (TField) result;
-	}
-	
-	protected abstract Object readGenerated(int fieldIndex) throws FieldAccessException;
-
-	@SuppressWarnings("unchecked")
-	@Override
-	public StructureModifier<TField> write(int index, Object value) throws FieldAccessException {
-		if (converter != null)
-			value = converter.getGeneric((TField) value);
-		return writeGenerated(index, value);
-	}
-	
-	protected abstract StructureModifier<TField> writeGenerated(int index, Object value) throws FieldAccessException;
-	
-	@Override
-	public StructureModifier<TField> withTarget(Object target) {
-		if (compiler != null)
-			return compiler.compile(super.withTarget(target));
-		else
-			return super.withTarget(target);
-	}
-}

ProtocolLib/src/com/comphenix/protocol/reflect/compiler/StructureCompiler.java

@@ -1,443 +0,0 @@
-package com.comphenix.protocol.reflect.compiler;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.lang.reflect.Modifier;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import com.comphenix.protocol.reflect.PrimitiveUtils;
-import com.comphenix.protocol.reflect.StructureModifier;
-import com.google.common.base.Objects;
-
-import net.sf.cglib.asm.*;
-
-// public class CompiledStructureModifierPacket20<TField> extends CompiledStructureModifier<TField> {
-//	
-//		private Packet20NamedEntitySpawn typedTarget;
-//	
-//		public CompiledStructureModifierPacket20(StructureModifier<TField> other, StructureCompiler compiler) {
-//			super();
-//			initialize(other);
-//			this.target = other.getTarget();
-//			this.typedTarget = (Packet20NamedEntitySpawn) target;
-//			this.compiler = compiler;
-//		}
-//	
-//		@Override
-//		protected Object readGenerated(int fieldIndex) throws FieldAccessException {
-//	
-//			Packet20NamedEntitySpawn target = typedTarget;
-//			
-//			switch (fieldIndex) {
-//			case 0: return (Object) target.a;
-//			case 1: return (Object) target.b;
-//			case 2: return (Object) target.c;
-//			case 3: return super.read(fieldIndex);
-//			case 4: return super.read(fieldIndex);
-//			case 5: return (Object) target.f;
-//			case 6: return (Object) target.g;
-//			case 7: return (Object) target.h;
-//			default:
-//				throw new FieldAccessException("Invalid index " + fieldIndex);
-//			}
-//		}
-//	
-//		@Override
-//		protected StructureModifier<TField> writeGenerated(int index, Object value) throws FieldAccessException {
-//			
-//			Packet20NamedEntitySpawn target = typedTarget;
-//			
-//			switch (index) {
-//			case 0: target.a = (Integer) value; break;
-//			case 1: target.b = (String) value; break;
-//			case 2: target.c = (Integer) value; break;
-//			case 3: target.d = (Integer) value; break;
-//			case 4: super.write(index, value); break;
-//			case 5: super.write(index, value); break;
-//			case 6: target.g = (Byte) value; break;
-//			case 7: target.h = (Integer) value; break;
-//			default:
-//				throw new FieldAccessException("Invalid index " + index);
-//			}
-//			
-//			// Chaining
-//			return this;
-//		}
-//	}
-
-/**
- * Represents a StructureModifier compiler.
- * 
- * @author Kristian
- */
-public final class StructureCompiler {
-
-	// Used to store generated classes of different types
-	@SuppressWarnings("rawtypes")
-	private class StructureKey {
-		private Class targetType;
-		private Class fieldType;
-		
-		public StructureKey(Class targetType, Class fieldType) {
-			this.targetType = targetType;
-			this.fieldType = fieldType;
-		}
-
-		@Override
-		public int hashCode() {
-			return Objects.hashCode(targetType, fieldType);
-		}
-		
-		@Override
-		public boolean equals(Object obj) {
-			if (obj instanceof StructureKey) {
-				StructureKey other = (StructureKey) obj;
-				return Objects.equal(targetType, other.targetType) &&
-					   Objects.equal(fieldType, other.fieldType);
-			}
-			return false;
-		}
-	}
-	
-	// Used to load classes
-	private volatile static Method defineMethod;
-	
-	@SuppressWarnings("rawtypes")
-	private Map<StructureKey, Class> compiledCache = new HashMap<StructureKey, Class>();
-	
-	// The class loader we'll store our classes
-	private ClassLoader loader;
-	
-	// References to other classes
-	private static String PACKAGE_NAME = "com/comphenix/protocol/reflect/compiler";
-	private static String SUPER_CLASS = "com/comphenix/protocol/reflect/StructureModifier";
-	private static String COMPILED_CLASS = PACKAGE_NAME + "/CompiledStructureModifier";
-	private static String FIELD_EXCEPTION_CLASS = "com/comphenix/protocol/reflect/FieldAccessException";
-	
-	/**
-	 * Construct a structure compiler.
-	 * @param loader - main class loader.
-	 */
-	StructureCompiler(ClassLoader loader) {
-		this.loader = loader;
-	}
-	
-	/**
-	 * Compiles the given structure modifier.
-	 * <p>
-	 * WARNING: Do NOT call this method in the main thread. Compiling may easily take 10 ms, which is already 
-	 * over 1/4 of a tick (50 ms). Let the background thread automatically compile the structure modifiers instead.
-	 * @param source - structure modifier to compile.
-	 * @return A compiled structure modifier.
-	 */
-	@SuppressWarnings("unchecked")
-	public synchronized <TField> StructureModifier<TField> compile(StructureModifier<TField> source) {
-
-		// We cannot optimize a structure modifier with no public fields
-		if (!isAnyPublic(source.getFields())) {
-			return source;
-		}
-		
-		StructureKey key = new StructureKey(source.getTargetType(), source.getFieldType());
-		Class<?> compiledClass = compiledCache.get(key);
-		
-		if (!compiledCache.containsKey(key)) {
-			compiledClass = generateClass(source);
-			compiledCache.put(key, compiledClass);
-		}
-		
-		// Next, create an instance of this class
-		try {
-			return (StructureModifier<TField>) compiledClass.getConstructor(
-					StructureModifier.class, StructureCompiler.class).
-					 newInstance(source, this);
-		} catch (IllegalArgumentException e) {
-			throw new IllegalStateException("Used invalid parameters in instance creation", e);
-		} catch (SecurityException e) {
-			throw new RuntimeException("Security limitation!", e);
-		} catch (InstantiationException e) {
-			throw new RuntimeException("Error occured while instancing generated class.", e);
-		} catch (IllegalAccessException e) {
-			throw new RuntimeException("Security limitation! Cannot create instance of dynamic class.", e);
-		} catch (InvocationTargetException e) {
-			throw new RuntimeException("Error occured while instancing generated class.", e);
-		} catch (NoSuchMethodException e) {
-			throw new IllegalStateException("Cannot happen.", e);
-		}
-	}
-	
-	private <TField> Class<?> generateClass(StructureModifier<TField> source) {
-		
-		ClassWriter cw = new ClassWriter(0);
-
-		@SuppressWarnings("rawtypes")
-		Class targetType = source.getTargetType();
-		
-		String className = "CompiledStructure$" + targetType.getSimpleName() + source.getFieldType().getSimpleName();
-		String targetSignature = Type.getDescriptor(targetType);
-		String targetName = targetType.getName().replace('.', '/');
-		
-		try {
-			// This class might have been generated before. Try to load it.
-			Class<?> before = loader.loadClass(PACKAGE_NAME.replace('/', '.') + "." + className);
-			
-			if (before != null)
-				return before;
-		} catch (ClassNotFoundException e) {
-			// That's ok. 
-		}
-		
-		cw.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, PACKAGE_NAME + "/" + className, 
-				"<TField:Ljava/lang/Object;>L" + COMPILED_CLASS + "<TTField;>;", 
-				COMPILED_CLASS, null);
-
-		createFields(cw, targetSignature);
-		createConstructor(cw, className, targetSignature, targetName);
-		createReadMethod(cw, className, source.getFields(), targetSignature, targetName);
-		createWriteMethod(cw, className, source.getFields(), targetSignature, targetName);
-		cw.visitEnd();
-
-		byte[] data = cw.toByteArray();
-		
-		// Call the define method
-		try {
-			if (defineMethod == null) {
-				Method defined = ClassLoader.class.getDeclaredMethod("defineClass", 
-					new Class<?>[] { String.class, byte[].class, int.class, int.class });
-			
-				// Awesome. Now, create and return it.
-				defined.setAccessible(true);
-				defineMethod = defined;
-			}
-			
-			@SuppressWarnings("rawtypes")
-			Class clazz = (Class) defineMethod.invoke(loader, null, data, 0, data.length);
-			
-			// DEBUG CODE: Print the content of the generated class.
-			//org.objectweb.asm.ClassReader cr = new org.objectweb.asm.ClassReader(data);
-	        //cr.accept(new ASMifierClassVisitor(new PrintWriter(System.out)), 0);
-			
-			return clazz;
-			
-		} catch (SecurityException e) {
-			throw new RuntimeException("Cannot use reflection to dynamically load a class.", e);
-		} catch (NoSuchMethodException e) {
-			throw new IllegalStateException("Incompatible JVM.", e);
-		} catch (IllegalArgumentException e) {
-			throw new IllegalStateException("Cannot call defineMethod - wrong JVM?", e);
-		} catch (IllegalAccessException e) {
-			throw new RuntimeException("Security limitation! Cannot dynamically load class.", e);
-		} catch (InvocationTargetException e) {
-			throw new RuntimeException("Error occured in code generator.", e);
-		}
-	}
-	
-	/**
-	 * Determine if at least one of the given fields is public.
-	 * @param fields - field to test.
-	 * @return TRUE if one or more field is publically accessible, FALSE otherwise.
-	 */
-	private boolean isAnyPublic(List<Field> fields) {
-		// Are any of the fields public?
-		for (int i = 0; i < fields.size(); i++) {
-			if (isPublic(fields.get(i))) {
-				return true;
-			}
-		}
-		
-		return false;
-	}
-	
-	private boolean isPublic(Field field) {
-		return Modifier.isPublic(field.getModifiers());
-	}
-	
-	private void createFields(ClassWriter cw, String targetSignature) {
-		FieldVisitor typedField = cw.visitField(Opcodes.ACC_PRIVATE, "typedTarget", targetSignature, null, null);
-		typedField.visitEnd();
-	}
-	
-	private void createWriteMethod(ClassWriter cw, String className, List<Field> fields, String targetSignature, String targetName) {
-		
-		String methodDescriptor = "(ILjava/lang/Object;)L" + SUPER_CLASS + ";";
-		String methodSignature = "(ITTField;)L" + SUPER_CLASS + "<TTField;>;";
-		MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PROTECTED, "writeGenerated", methodDescriptor, methodSignature, 
-									new String[] { FIELD_EXCEPTION_CLASS });
-		BoxingHelper boxingHelper = new BoxingHelper(mv);
-		
-		mv.visitCode();
-		mv.visitVarInsn(Opcodes.ALOAD, 0);
-		mv.visitFieldInsn(Opcodes.GETFIELD, PACKAGE_NAME + "/" + className, "typedTarget", targetSignature);
-		mv.visitVarInsn(Opcodes.ASTORE, 3);
-		mv.visitVarInsn(Opcodes.ILOAD, 1);
-
-		// The last label is for the default switch
-		Label[] labels = new Label[fields.size()];
-		Label errorLabel = new Label();
-		Label returnLabel = new Label();
-		
-		// Generate labels
-		for (int i = 0; i < fields.size(); i++) {
-			labels[i] = new Label();
-		}
-		
-		mv.visitTableSwitchInsn(0, labels.length - 1, errorLabel, labels);
-		
-		for (int i = 0; i < fields.size(); i++) {
-			
-			Class<?> outputType = fields.get(i).getType();
-			Class<?> inputType = PrimitiveUtils.wrap(outputType);
-			String typeDescriptor = Type.getDescriptor(outputType);
-			String inputPath = inputType.getName().replace('.', '/');
-			
-			mv.visitLabel(labels[i]);
-			
-			// Push the compare object
-			if (i == 0)
-				mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { targetName }, 0, null);
-			else
-				mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
-			
-			// Only write to public fields
-			if (isPublic(fields.get(i))) {
-				mv.visitVarInsn(Opcodes.ALOAD, 3);
-				mv.visitVarInsn(Opcodes.ALOAD, 2);
-				
-				if (!PrimitiveUtils.isPrimitive(outputType))
-					mv.visitTypeInsn(Opcodes.CHECKCAST, inputPath);
-				else
-					boxingHelper.unbox(Type.getType(outputType));
-				
-				mv.visitFieldInsn(Opcodes.PUTFIELD, targetName, fields.get(i).getName(), typeDescriptor);
-			
-			} else {
-				// Use reflection. We don't have a choice, unfortunately.
-				mv.visitVarInsn(Opcodes.ALOAD, 0);
-				mv.visitVarInsn(Opcodes.ILOAD, 1);
-				mv.visitVarInsn(Opcodes.ALOAD, 2);
-				mv.visitMethodInsn(Opcodes.INVOKESPECIAL, COMPILED_CLASS, "write", "(ILjava/lang/Object;)L" + SUPER_CLASS + ";");
-				mv.visitInsn(Opcodes.POP);
-			}
-		
-			mv.visitJumpInsn(Opcodes.GOTO, returnLabel);
-		}
-		
-		mv.visitLabel(errorLabel);
-		mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
-		mv.visitTypeInsn(Opcodes.NEW, FIELD_EXCEPTION_CLASS);
-		mv.visitInsn(Opcodes.DUP);
-		mv.visitTypeInsn(Opcodes.NEW, "java/lang/StringBuilder");
-		mv.visitInsn(Opcodes.DUP);
-		mv.visitLdcInsn("Invalid index ");
-		mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V");
-		mv.visitVarInsn(Opcodes.ILOAD, 1);
-		mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(I)Ljava/lang/StringBuilder;");
-		mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;");
-		mv.visitMethodInsn(Opcodes.INVOKESPECIAL, FIELD_EXCEPTION_CLASS, "<init>", "(Ljava/lang/String;)V");
-		mv.visitInsn(Opcodes.ATHROW);
-		
-		mv.visitLabel(returnLabel);
-		mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
-		mv.visitVarInsn(Opcodes.ALOAD, 0);
-		mv.visitInsn(Opcodes.ARETURN);
-		mv.visitMaxs(5, 4);
-		mv.visitEnd();
-	}
-
-	private void createReadMethod(ClassWriter cw, String className, List<Field> fields, String targetSignature, String targetName) {
-		MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PROTECTED, "readGenerated", "(I)Ljava/lang/Object;", null, 
-									new String[] { "com/comphenix/protocol/reflect/FieldAccessException" });
-		BoxingHelper boxingHelper = new BoxingHelper(mv);
-		
-		mv.visitCode();
-		mv.visitVarInsn(Opcodes.ALOAD, 0);
-		mv.visitFieldInsn(Opcodes.GETFIELD, PACKAGE_NAME + "/" + className, "typedTarget", targetSignature);
-		mv.visitVarInsn(Opcodes.ASTORE, 2);
-		mv.visitVarInsn(Opcodes.ILOAD, 1);
-
-		// The last label is for the default switch
-		Label[] labels = new Label[fields.size()];
-		Label errorLabel = new Label();
-		
-		// Generate labels
-		for (int i = 0; i < fields.size(); i++) {
-			labels[i] = new Label();
-		}
-		
-		mv.visitTableSwitchInsn(0, fields.size() - 1, errorLabel, labels);
-		
-		for (int i = 0; i < fields.size(); i++) {
-			Class<?> outputType = fields.get(i).getType();
-			String typeDescriptor = Type.getDescriptor(outputType);
-			
-			mv.visitLabel(labels[i]);
-			
-			// Push the compare object
-			if (i == 0)
-				mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] { targetName }, 0, null);
-			else
-				mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
-			
-			// Note that byte code cannot access non-public fields
-			if (isPublic(fields.get(i))) {
-				mv.visitVarInsn(Opcodes.ALOAD, 2);
-				mv.visitFieldInsn(Opcodes.GETFIELD, targetName, fields.get(i).getName(), typeDescriptor);
-				
-				boxingHelper.box(Type.getType(outputType));
-			} else {
-				// We have to use reflection for private and protected fields.
-				mv.visitVarInsn(Opcodes.ALOAD, 0);
-				mv.visitVarInsn(Opcodes.ILOAD, 1);
-				mv.visitMethodInsn(Opcodes.INVOKESPECIAL, COMPILED_CLASS, "read", "(I)Ljava/lang/Object;");
-			}
-			
-			mv.visitInsn(Opcodes.ARETURN);
-		}
-
-		mv.visitLabel(errorLabel);
-		mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
-		mv.visitTypeInsn(Opcodes.NEW, FIELD_EXCEPTION_CLASS);
-		mv.visitInsn(Opcodes.DUP);
-		mv.visitTypeInsn(Opcodes.NEW, "java/lang/StringBuilder");
-		mv.visitInsn(Opcodes.DUP);
-		mv.visitLdcInsn("Invalid index ");
-		mv.visitMethodInsn(Opcodes.INVOKESPECIAL, "java/lang/StringBuilder", "<init>", "(Ljava/lang/String;)V");
-		mv.visitVarInsn(Opcodes.ILOAD, 1);
-		mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "append", "(I)Ljava/lang/StringBuilder;");
-		mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/lang/StringBuilder", "toString", "()Ljava/lang/String;");
-		mv.visitMethodInsn(Opcodes.INVOKESPECIAL, FIELD_EXCEPTION_CLASS, "<init>", "(Ljava/lang/String;)V");
-		mv.visitInsn(Opcodes.ATHROW);
-		mv.visitMaxs(5, 3);
-		mv.visitEnd();
-	}
-
-	private void createConstructor(ClassWriter cw, String className, String targetSignature, String targetName) {
-		MethodVisitor mv = cw.visitMethod(Opcodes.ACC_PUBLIC, "<init>", 
-				"(L" + SUPER_CLASS + ";L" + PACKAGE_NAME + "/StructureCompiler;)V", 
-				"(L" + SUPER_CLASS + "<TTField;>;L" + SUPER_CLASS + ";)V", null);
-		mv.visitCode();
-		mv.visitVarInsn(Opcodes.ALOAD, 0);
-		mv.visitMethodInsn(Opcodes.INVOKESPECIAL, COMPILED_CLASS, "<init>", "()V");
-		mv.visitVarInsn(Opcodes.ALOAD, 0);
-		mv.visitVarInsn(Opcodes.ALOAD, 1);
-		mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, PACKAGE_NAME + "/" + className, "initialize", "(L" + SUPER_CLASS + ";)V");
-		mv.visitVarInsn(Opcodes.ALOAD, 0);
-		mv.visitVarInsn(Opcodes.ALOAD, 1);
-		mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL, SUPER_CLASS, "getTarget", "()Ljava/lang/Object;");
-		mv.visitFieldInsn(Opcodes.PUTFIELD, PACKAGE_NAME + "/" + className, "target", "Ljava/lang/Object;");
-		mv.visitVarInsn(Opcodes.ALOAD, 0);
-		mv.visitVarInsn(Opcodes.ALOAD, 0);
-		mv.visitFieldInsn(Opcodes.GETFIELD, PACKAGE_NAME + "/" + className, "target", "Ljava/lang/Object;");
-		mv.visitTypeInsn(Opcodes.CHECKCAST, targetName);
-		mv.visitFieldInsn(Opcodes.PUTFIELD, PACKAGE_NAME + "/" + className, "typedTarget", targetSignature);
-		mv.visitVarInsn(Opcodes.ALOAD, 0);
-		mv.visitVarInsn(Opcodes.ALOAD, 2);
-		mv.visitFieldInsn(Opcodes.PUTFIELD, PACKAGE_NAME + "/" + className, "compiler", "L" + PACKAGE_NAME + "/StructureCompiler;");
-		mv.visitInsn(Opcodes.RETURN);
-		mv.visitMaxs(2, 3);
-		mv.visitEnd();
-	}
-}

ProtocolLib/src/com/comphenix/protocol/reflect/instances/ExistingGenerator.java

@@ -1,89 +0,0 @@
-package com.comphenix.protocol.reflect.instances;
-
-import java.lang.reflect.Field;
-import java.util.HashMap;
-import java.util.Map;
-
-import javax.annotation.Nullable;
-
-import com.comphenix.protocol.reflect.FieldUtils;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-
-/**
- * Provides instance constructors using a list of existing values.
- * <p>
- * Only one instance per individual class.
- * @author Kristian
- */
-public class ExistingGenerator implements InstanceProvider {
-
-	@SuppressWarnings("rawtypes")
-	private Map<Class, Object> existingValues = new HashMap<Class, Object>();
-	
-	private ExistingGenerator() {
-		// Only accessible to the constructors
-	}
-	
-	/**
-	 * Automatically create an instance provider from a objects public and private fields.
-	 * <p>
-	 * If two or more fields share the same type, the last declared non-null field will take
-	 * precedent.
-	 * @param object - object to create an instance generator from.
-	 * @return The instance generator.
-	 */
-	public static ExistingGenerator fromObjectFields(Object object) {
-		ExistingGenerator generator = new ExistingGenerator();
-		
-		// Read instances from every field.
-		for (Field field : FuzzyReflection.fromObject(object, true).getFields()) {
-			try {
-				Object value = FieldUtils.readField(field, object, true);
-				
-				// Use the type of the field, not the object itself
-				if (value != null)
-					generator.addObject(field.getType(), value);
-				
-			} catch (Exception e) {
-				// Yes, swallow it. No, really.
-			}
-		}
-		
-		return generator;
-	}
-	
-	/**
-	 * Create an instance generator from a pre-defined array of values.
-	 * @param values - values to provide.
-	 * @return An instance provider that uses these values.
-	 */
-	public static ExistingGenerator fromObjectArray(Object[] values) {
-		ExistingGenerator generator = new ExistingGenerator();
-		
-		for (Object value : values)
-			 generator.addObject(value);
-		
-		return generator;
-	}
-	
-	private void addObject(Object value) {
-		if (value == null)
-			throw new IllegalArgumentException("Value cannot be NULL.");
-		
-		existingValues.put(value.getClass(), value);
-	}
-
-	private void addObject(Class<?> type, Object value) {
-		existingValues.put(type, value);
-	}
-
-	
-	@Override
-	public Object create(@Nullable Class<?> type) {
-		
-		Object value = existingValues.get(type);
-		
-		// NULL values indicate that the generator failed
-		return value;
-	}
-}

ProtocolLib/src/com/comphenix/protocol/reflect/instances/InstanceProvider.java

@@ -1,18 +0,0 @@
-package com.comphenix.protocol.reflect.instances;
-
-import javax.annotation.Nullable;
-
-/**
- * Represents a type generator for specific types.
- * 
- * @author Kristian
- */
-public interface InstanceProvider {
-
-	/**
-	 * Create an instance given a type, if possible.
-	 * @param type - type to create.
-	 * @return The instance, or NULL if the type cannot be created.
-	 */
-	public abstract Object create(@Nullable Class<?> type);
-}

ProtocolLib/src/plugin.yml

@@ -1,8 +0,0 @@
-name: ProtocolLib
-version: 1.2.1
-description: Provides read/write access to the Minecraft protocol.
-author: Comphenix
-website: http://www.comphenix.net/ProtocolLib
-
-main: com.comphenix.protocol.ProtocolLibrary
-database: false

ProtocolLib/test/com/comphenix/protocol/reflect/StructureModifierTest.java

@@ -1,26 +0,0 @@
-package com.comphenix.protocol.reflect;
-
-import static org.junit.Assert.*;
-
-import net.minecraft.server.Packet103SetSlot;
-
-import org.junit.Test;
-
-import com.avaje.ebeaninternal.server.cluster.Packet;
-import com.comphenix.protocol.reflect.StructureModifier;
-
-public class StructureModifierTest {
-
-	@Test
-	public void test() throws FieldAccessException {
-
-		Packet103SetSlot move = new Packet103SetSlot();
-		StructureModifier<Object> modifier = new StructureModifier<Object>(
-				Packet103SetSlot.class, Packet.class, true);
-
-		move.a = 1;
-		int value = (Integer) modifier.withTarget(move).withType(int.class).read(0);
-		
-		assertEquals(1, value);
-	}
-}

Readme.md

@@ -1,131 +1,169 @@
-ProtocolLib 
-===========
+# ProtocolLib [![Travis Status](https://travis-ci.org/dmulloy2/ProtocolLib.svg?branch=master)](https://travis-ci.org/dmulloy2/ProtocolLib)
 
-Certain tasks are impossible to perform with the standard Bukkit API, and may require 
-working with and even modify Minecraft directly. A common technique is to modify incoming 
-and outgoing [packets](http://www.wiki.vg/Protocol), or inject custom packets into the
-stream. This is quite cumbersome to do, however, and most implementations will break 
+Certain tasks are impossible to perform with the standard Bukkit API, and may require
+working with and even modify Minecraft directly. A common technique is to modify incoming
+and outgoing [packets](https://www.wiki.vg/Protocol), or inject custom packets into the
+stream. This is quite cumbersome to do, however, and most implementations will break
 as soon as a new version of Minecraft has been released, mostly due to obfuscation.
 
-Critically, different plugins that use this approach may _hook_ into the same classes, 
-with unpredictable outcomes. More than often this causes plugins to crash, but it may also 
+Critically, different plugins that use this approach may _hook_ into the same classes,
+with unpredictable outcomes. More than often this causes plugins to crash, but it may also
 lead to more subtle bugs.
 
+Currently maintained by dmulloy2 on behalf of [Spigot](https://www.spigotmc.org/).
 
 ### Resources
 
-* [JavaDoc](http://aadnk.github.com/ProtocolLib/Javadoc/) 
+* [Resource Page](https://www.spigotmc.org/resources/protocollib.1997/)
+* [Dev Builds](https://ci.dmulloy2.net/job/ProtocolLib)
+* [JavaDoc](https://ci.dmulloy2.net/job/ProtocolLib/javadoc)
 
+### Compilation
 
-A new API
----------
+ProtocolLib is built with Maven and requires Spigot and SpigotAPI, which can be found [here](https://www.spigotmc.org/wiki/buildtools/).
 
-__ProtocolLib__ attempts to solve this problem by providing a event API, much like Bukkit, 
-that allow plugins to monitor, modify or cancel packets sent and received. But more importantly, 
-the API also hides all the gritty, obfuscated classes with a simple index based read/write system. 
+### A new API
+
+__ProtocolLib__ attempts to solve this problem by providing a event API, much like Bukkit,
+that allows plugins to monitor, modify, or cancel packets sent and received. But, more importantly,
+the API also hides all the gritty, obfuscated classes with a simple index based read/write system.
 You no longer have to reference CraftBukkit!
 
-
 ### Using ProtocolLib
 
-To use the library, first add ProtocolLib.jar to your Java build path. Then, add ProtocolLib
-as a dependency (or soft-dependency, if you can live without it) to your plugin.yml file:
+To use this library, first add ProtocolLib.jar to your Java build path. Then, add ProtocolLib
+as a dependency or soft dependency to your plugin.yml file like any other plugin:
 
-    depends: [ProtocolLib]
+````yml
+depend: [ProtocolLib]
+````
 
-Then get a reference to ProtocolManager in onLoad() and you're good to go.
+You can also add ProtocolLib as a Maven dependency:
 
-    private ProtocolManager protocolManager;
-    
-    public void onLoad() {
-        protocolManager = ProtocolLibrary.getProtocolManager();
-    }
+````xml
+<repositories>
+  <repository>
+    <id>dmulloy2-repo</id>
+    <url>https://repo.dmulloy2.net/nexus/repository/public/</url>
+  </repository>
+  ...
+</repositories>
+
+<dependencies>
+  <dependency>
+    <groupId>com.comphenix.protocol</groupId>
+    <artifactId>ProtocolLib</artifactId>
+    <version>4.5.0</version>
+  </dependency>
+</dependencies>
+````
+
+Or use the maven dependency with gradle:
+
+```gradle
+repositories {
+    maven { url "https://repo.dmulloy2.net/nexus/repository/public/" }
+}
+
+dependencies {
+    compileOnly group: "com.comphenix.protocol", name: "ProtocolLib", version: "4.5.0";
+}
+```
+
+Then get a reference to ProtocolManager in onLoad() or onEnable() and you're good to go.
+
+````java
+private ProtocolManager protocolManager;
+
+public void onLoad() {
+    protocolManager = ProtocolLibrary.getProtocolManager();
+}
+````
 
 To listen for packets sent by the server to a client, add a server-side listener:
 
-    // Disable all sound effects
-    protocolManager.addPacketListener(
-      new PacketAdapter(this, ConnectionSide.SERVER_SIDE, ListenerPriority.NORMAL, 0x3E) {
-        @Override
-        public void onPacketSending(PacketEvent event) {
-            // Item packets
-            switch (event.getPacketID()) {
-            case 0x3E: // Sound effect
-                event.setCancelled(true);
-                break;
-            }
+````java
+// Disable all sound effects
+protocolManager.addPacketListener(
+  new PacketAdapter(this, ListenerPriority.NORMAL,
+          PacketType.Play.Server.NAMED_SOUND_EFFECT) {
+    @Override
+    public void onPacketSending(PacketEvent event) {
+        // Item packets (id: 0x29)
+        if (event.getPacketType() ==
+                PacketType.Play.Server.NAMED_SOUND_EFFECT) {
+            event.setCancelled(true);
         }
-    });
-
+    }
+});
+````
 
 It's also possible to read and modify the content of these packets. For instance, you can create a global
 censor by listening for Packet3Chat events:
 
-    // Censor
-    protocolManager.addPacketListener(
-      new PacketAdapter(this, ConnectionSide.CLIENT_SIDE, ListenerPriority.NORMAL, 0x03) {
-        @Override
-        public void onPacketReceiving(PacketEvent event) {
-            if (event.getPacketID() == 0x03) {
-                try {
-                    PacketContainer packet = event.getPacket();
-                    String message = packet.getSpecificModifier(String.class).read(0);
-                    
-                    if (message.contains("shit") || message.contains("damn")) {
-                        event.setCancelled(true);
-                        event.getPlayer().sendMessage("Bad manners!");
-                    }
-                    		
-                } catch (FieldAccessException e) {
-                    getLogger().log(Level.SEVERE, "Couldn't access field.", e);
-                }
+````java
+// Censor
+protocolManager.addPacketListener(new PacketAdapter(this,
+        ListenerPriority.NORMAL,
+        PacketType.Play.Client.CHAT) {
+    @Override
+    public void onPacketReceiving(PacketEvent event) {
+        if (event.getPacketType() == PacketType.Play.Client.CHAT) {
+            PacketContainer packet = event.getPacket();
+            String message = packet.getStrings().read(0);
+
+            if (message.contains("shit")
+                    || message.contains("damn")) {
+                event.setCancelled(true);
+                event.getPlayer().sendMessage("Bad manners!");
             }
         }
-    });
-
+    }
+});
+````
 
 ### Sending packets
 
 Normally, you might have to do something ugly like the following:
 
-    Packet60Explosion fakeExplosion = new Packet60Explosion();
-    	
-    fakeExplosion.a = player.getLocation().getX();
-    fakeExplosion.b = player.getLocation().getY();
-    fakeExplosion.c = player.getLocation().getZ();
-    fakeExplosion.d = 3.0F;
-    fakeExplosion.e = new ArrayList<Object>();
+````java
+Packet60Explosion fakeExplosion = new Packet60Explosion();
 
-    ((CraftPlayer) player).getHandle().netServerHandler.sendPacket(fakeExplosion);
+fakeExplosion.a = player.getLocation().getX();
+fakeExplosion.b = player.getLocation().getY();
+fakeExplosion.c = player.getLocation().getZ();
+fakeExplosion.d = 3.0F;
+fakeExplosion.e = new ArrayList<Object>();
 
-But with ProtocolLib, you can turn that into something more manageable. Notice that 
-you don't have to create an ArrayList this version:
+((CraftPlayer) player).getHandle().netServerHandler.sendPacket(fakeExplosion);
+````
 
-    PacketContainer fakeExplosion = protocolManager.createPacket(60);
-    
-    fakeExplosion.getSpecificModifier(double.class).
-        write(0, player.getLocation().getX()).
-        write(1, player.getLocation().getY()).
-        write(2, player.getLocation().getZ());
-    fakeExplosion.getSpecificModifier(float.class).
-        write(0, 3.0F);
-    
+But with ProtocolLib, you can turn that into something more manageable. Notice that
+you don't have to create an ArrayList with this version:
+
+````java
+
+PacketContainer fakeExplosion = new PacketContainer(PacketType.Play.Server.EXPLOSION);
+fakeExplosion.getDoubles().
+    write(0, player.getLocation().getX()).
+    write(1, player.getLocation().getY()).
+    write(2, player.getLocation().getZ());
+fakeExplosion.getFloat().write(0, 3.0F);
+
+try {
     protocolManager.sendServerPacket(player, fakeExplosion);
+} catch (InvocationTargetException e) {
+    throw new RuntimeException(
+        "Cannot send packet " + fakeExplosion, e);
+}
+````
 
+### Compatibility
 
-Compatiblity
-------------
+One of the main goals of this project was to achieve maximum compatibility with CraftBukkit. And the end
+result is quite flexible. Aside from netty package changes, it should be resilient against future changes.
+It's likely that I won't have to update ProtocolLib for anything but bug fixes and new features.
 
-One of the main goals of this project was to achive maximum compatibility with craftBukkit. And the end
-result is quite flexible - in tests I successfully ran an unmodified ProtocolLib on CraftBukkit 1.8.0, and
-it should be resiliant against future changes. It's likely that I won't have to update ProtocolLib for
-anything but bug and performance fixes. 
-
-How is this possible? It all comes down to reflection in the end. Essentially, no name is hard coded - 
+How is this possible? It all comes down to reflection in the end. Essentially, no name is hard coded -
 every field, method and class is deduced by looking at field types, package names or parameter
 types. It's remarkably consistent across different versions.
-
-
-### Incompatiblity
-
-The following plugins (to be expanded) are not compatible with ProtocolLib:

TinyProtocol/pom.xml

@@ -0,0 +1,137 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <modelVersion>4.0.0</modelVersion>
+  <groupId>com.comphenix.tinyprotocol</groupId>
+  <artifactId>TinyProtocol</artifactId>
+  <version>1.0.0-SNAPSHOT</version>
+  <name>TinyProtocol</name>
+  <description>Intercept packets without ProtocolLib.</description>
+
+  <properties>
+    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+  </properties>
+
+  <parent>
+    <groupId>com.comphenix.protocol</groupId>
+    <artifactId>ProtocolLib-Parent</artifactId>
+    <version>v4-SNAPSHOT</version>
+    <relativePath>../../</relativePath>
+  </parent>
+
+  <repositories>
+    <repository>
+      <id>spigot-repo</id>
+      <url>https://hub.spigotmc.org/nexus/content/groups/public/</url>
+    </repository>
+    <repository>
+      <id>dmulloy2-repo</id>
+      <url>http://repo.dmulloy2.net/content/groups/public/</url>
+    </repository>
+  </repositories>
+
+  <build>
+    <sourceDirectory>src/main/java</sourceDirectory>
+    <resources>
+      <resource>
+        <directory>src/main/resources</directory>
+      </resource>
+    </resources>
+
+    <plugins>
+      <plugin>
+        <artifactId>maven-compiler-plugin</artifactId>
+        <version>3.0</version>
+        <configuration>
+          <source>1.8</source>
+          <target>1.8</target>
+        </configuration>
+      </plugin>
+
+      <plugin>
+        <groupId>org.apache.maven.plugins</groupId>
+        <artifactId>maven-jar-plugin</artifactId>
+        <version>2.5</version>
+        <configuration>
+          <archive>
+            <addMavenDescriptor>false</addMavenDescriptor>
+          </archive>
+          <finalName>TinyProtocol</finalName>
+          <outputDirectory>../../target/</outputDirectory>
+        </configuration>
+      </plugin>
+
+      <plugin>
+        <artifactId>maven-javadoc-plugin</artifactId>
+        <version>2.7</version>
+        <executions>
+          <execution>
+            <phase>package</phase>
+            <id>attach-javadocs</id>
+          </execution>
+        </executions>
+        <configuration>
+          <skip>true</skip>
+        </configuration>
+      </plugin>
+
+    </plugins>
+  </build>
+
+  <profiles>
+    <profile>
+      <id>release-sign-artifacts</id>
+      <activation>
+        <property>
+          <name>performRelease</name>
+          <value>true</value>
+        </property>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-source-plugin</artifactId>
+            <version>2.2</version>
+            <executions>
+              <execution>
+                <id>attach-sources</id>
+                <goals>
+                  <goal>jar</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-javadoc-plugin</artifactId>
+            <version>2.9</version>
+            <executions>
+              <execution>
+                <id>attach-javadocs</id>
+                <goals>
+                  <goal>jar</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-gpg-plugin</artifactId>
+            <version>1.4</version>
+            <executions>
+              <execution>
+                <id>sign-artifacts</id>
+                <phase>verify</phase>
+                <goals>
+                  <goal>sign</goal>
+                </goals>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
+</project>

TinyProtocol/src/main/java/com/comphenix/tinyprotocol/ExamplePlugin.java

@@ -0,0 +1,117 @@
+package com.comphenix.tinyprotocol;
+
+import io.netty.channel.Channel;
+
+import org.bukkit.ChatColor;
+import org.bukkit.Location;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import com.comphenix.tinyprotocol.Reflection.ConstructorInvoker;
+import com.comphenix.tinyprotocol.Reflection.FieldAccessor;
+
+/**
+ * Represents an example plugin utilizing TinyProtocol
+ */
+public class ExamplePlugin extends JavaPlugin {
+	// Chat packets
+	private FieldAccessor<String> CHAT_MESSAGE = Reflection.getField("{nms}.PacketPlayInChat", String.class, 0);
+
+	// Explosion packet
+	private Class<?> particleClass = Reflection.getClass("{nms}.PacketPlayOutWorldParticles");
+	private FieldAccessor<String> particleName = Reflection.getField(particleClass, String.class, 0);
+	private FieldAccessor<Float> particleX = Reflection.getField(particleClass, float.class, 0);
+	private FieldAccessor<Float> particleY = Reflection.getField(particleClass, float.class, 1);
+	private FieldAccessor<Float> particleZ = Reflection.getField(particleClass, float.class, 2);
+	private FieldAccessor<Integer> particleCount = Reflection.getField(particleClass, int.class, 0);
+
+	// Server info packet
+	private Class<?> serverInfoClass = Reflection.getClass("{nms}.PacketStatusOutServerInfo");
+	private Class<Object> serverPingClass = Reflection.getUntypedClass("{nms}.ServerPing");
+	private Class<Object> playerSampleClass = Reflection.getUntypedClass("{nms}.ServerPingPlayerSample");
+	private FieldAccessor<Object> serverPing = Reflection.getField(serverInfoClass, serverPingClass, 0);
+	private FieldAccessor<Object> playerSample = Reflection.getField(serverPingClass, playerSampleClass, 0);
+	private ConstructorInvoker playerSampleInvoker = Reflection.getConstructor(playerSampleClass, int.class, int.class);
+
+	private TinyProtocol protocol;
+
+	@Override
+	public void onEnable() {
+		protocol = new TinyProtocol(this) {
+
+			@Override
+			public Object onPacketInAsync(Player sender, Channel channel, Object packet) {
+				// Cancel chat packets
+				if (CHAT_MESSAGE.hasField(packet)) {
+					if (CHAT_MESSAGE.get(packet).contains("dirty")) {
+						sendExplosion(sender);
+						return null;
+					}
+				}
+
+				if (particleName.hasField(packet)) {
+					System.out.println("Sending particle field:" + packet);
+				}
+
+				return super.onPacketInAsync(sender, channel, packet);
+			}
+
+			@Override
+			public Object onPacketOutAsync(Player reciever, Channel channel, Object packet) {
+				if (serverInfoClass.isInstance(packet)) {
+					Object ping = serverPing.get(packet);
+					playerSample.set(ping, playerSampleInvoker.invoke(1000, 0));
+
+					// Which is equivalent to:
+					// serverPing.get(packet).setPlayerSample(new ServerPingPlayerSample(1000, 0));
+					return packet;
+				}
+
+				return super.onPacketOutAsync(reciever, channel, packet);
+			}
+
+		};
+	}
+
+	@Override
+	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+		if (sender instanceof Player) {
+			Player player = (Player) sender;
+
+			// Toggle injection
+			if (protocol.hasInjected(player)) {
+				protocol.uninjectPlayer(player);
+				sender.sendMessage(ChatColor.YELLOW + "Player " + player + " has been uninjected.");
+			} else {
+				protocol.injectPlayer(player);
+				sender.sendMessage(ChatColor.DARK_GREEN + "Player " + player + " has been injected.");
+			}
+
+			return true;
+		} else {
+			sender.sendMessage(ChatColor.RED + "Can only be invoked by a player.");
+		}
+
+		return false;
+	}
+
+	private void sendExplosion(Player player) {
+		try {
+			// Only visible for the client
+			Object explosionPacket = particleClass.newInstance();
+			Location loc = player.getLocation();
+			particleName.set(explosionPacket, "hugeexplosion");
+			particleX.set(explosionPacket, (float) loc.getX());
+			particleY.set(explosionPacket, (float) loc.getY());
+			particleZ.set(explosionPacket, (float) loc.getZ());
+			particleCount.set(explosionPacket, 1);
+
+			// Send the packet to the player
+			protocol.sendPacket(player, explosionPacket);
+		} catch (Exception e) {
+			throw new RuntimeException("Cannot send packet.", e);
+		}
+	}
+}

TinyProtocol/src/main/java/com/comphenix/tinyprotocol/Reflection.java

@@ -0,0 +1,403 @@
+package com.comphenix.tinyprotocol;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.util.Arrays;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.bukkit.Bukkit;
+
+/**
+ * An utility class that simplifies reflection in Bukkit plugins.
+ * 
+ * @author Kristian
+ */
+public final class Reflection {
+	/**
+	 * An interface for invoking a specific constructor.
+	 */
+	public interface ConstructorInvoker {
+		/**
+		 * Invoke a constructor for a specific class.
+		 * 
+		 * @param arguments - the arguments to pass to the constructor.
+		 * @return The constructed object.
+		 */
+		public Object invoke(Object... arguments);
+	}
+
+	/**
+	 * An interface for invoking a specific method.
+	 */
+	public interface MethodInvoker {
+		/**
+		 * Invoke a method on a specific target object.
+		 * 
+		 * @param target - the target object, or NULL for a static method.
+		 * @param arguments - the arguments to pass to the method.
+		 * @return The return value, or NULL if is void.
+		 */
+		public Object invoke(Object target, Object... arguments);
+	}
+
+	/**
+	 * An interface for retrieving the field content.
+	 * 
+	 * @param <T> - field type.
+	 */
+	public interface FieldAccessor<T> {
+		/**
+		 * Retrieve the content of a field.
+		 * 
+		 * @param target - the target object, or NULL for a static field.
+		 * @return The value of the field.
+		 */
+		public T get(Object target);
+
+		/**
+		 * Set the content of a field.
+		 * 
+		 * @param target - the target object, or NULL for a static field.
+		 * @param value - the new value of the field.
+		 */
+		public void set(Object target, Object value);
+
+		/**
+		 * Determine if the given object has this field.
+		 * 
+		 * @param target - the object to test.
+		 * @return TRUE if it does, FALSE otherwise.
+		 */
+		public boolean hasField(Object target);
+	}
+
+	// Deduce the net.minecraft.server.v* package
+	private static String OBC_PREFIX = Bukkit.getServer().getClass().getPackage().getName();
+	private static String NMS_PREFIX = OBC_PREFIX.replace("org.bukkit.craftbukkit", "net.minecraft.server");
+	private static String VERSION = OBC_PREFIX.replace("org.bukkit.craftbukkit", "").replace(".", "");
+
+	// Variable replacement
+	private static Pattern MATCH_VARIABLE = Pattern.compile("\\{([^\\}]+)\\}");
+
+	private Reflection() {
+		// Seal class
+	}
+
+	/**
+	 * Retrieve a field accessor for a specific field type and name.
+	 * 
+	 * @param target - the target type.
+	 * @param name - the name of the field, or NULL to ignore.
+	 * @param fieldType - a compatible field type.
+	 * @return The field accessor.
+	 */
+	public static <T> FieldAccessor<T> getField(Class<?> target, String name, Class<T> fieldType) {
+		return getField(target, name, fieldType, 0);
+	}
+
+	/**
+	 * Retrieve a field accessor for a specific field type and name.
+	 * 
+	 * @param className - lookup name of the class, see {@link #getClass(String)}.
+	 * @param name - the name of the field, or NULL to ignore.
+	 * @param fieldType - a compatible field type.
+	 * @return The field accessor.
+	 */
+	public static <T> FieldAccessor<T> getField(String className, String name, Class<T> fieldType) {
+		return getField(getClass(className), name, fieldType, 0);
+	}
+
+	/**
+	 * Retrieve a field accessor for a specific field type and name.
+	 * 
+	 * @param target - the target type.
+	 * @param fieldType - a compatible field type.
+	 * @param index - the number of compatible fields to skip.
+	 * @return The field accessor.
+	 */
+	public static <T> FieldAccessor<T> getField(Class<?> target, Class<T> fieldType, int index) {
+		return getField(target, null, fieldType, index);
+	}
+
+	/**
+	 * Retrieve a field accessor for a specific field type and name.
+	 * 
+	 * @param className - lookup name of the class, see {@link #getClass(String)}.
+	 * @param fieldType - a compatible field type.
+	 * @param index - the number of compatible fields to skip.
+	 * @return The field accessor.
+	 */
+	public static <T> FieldAccessor<T> getField(String className, Class<T> fieldType, int index) {
+		return getField(getClass(className), fieldType, index);
+	}
+
+	// Common method
+	private static <T> FieldAccessor<T> getField(Class<?> target, String name, Class<T> fieldType, int index) {
+		for (final Field field : target.getDeclaredFields()) {
+			if ((name == null || field.getName().equals(name)) && fieldType.isAssignableFrom(field.getType()) && index-- <= 0) {
+				field.setAccessible(true);
+
+				// A function for retrieving a specific field value
+				return new FieldAccessor<T>() {
+
+					@Override
+					@SuppressWarnings("unchecked")
+					public T get(Object target) {
+						try {
+							return (T) field.get(target);
+						} catch (IllegalAccessException e) {
+							throw new RuntimeException("Cannot access reflection.", e);
+						}
+					}
+
+					@Override
+					public void set(Object target, Object value) {
+						try {
+							field.set(target, value);
+						} catch (IllegalAccessException e) {
+							throw new RuntimeException("Cannot access reflection.", e);
+						}
+					}
+
+					@Override
+					public boolean hasField(Object target) {
+						// target instanceof DeclaringClass
+						return field.getDeclaringClass().isAssignableFrom(target.getClass());
+					}
+				};
+			}
+		}
+
+		// Search in parent classes
+		if (target.getSuperclass() != null)
+			return getField(target.getSuperclass(), name, fieldType, index);
+
+		throw new IllegalArgumentException("Cannot find field with type " + fieldType);
+	}
+
+	/**
+	 * Search for the first publicly and privately defined method of the given name and parameter count.
+	 * 
+	 * @param className - lookup name of the class, see {@link #getClass(String)}.
+	 * @param methodName - the method name, or NULL to skip.
+	 * @param params - the expected parameters.
+	 * @return An object that invokes this specific method.
+	 * @throws IllegalStateException If we cannot find this method.
+	 */
+	public static MethodInvoker getMethod(String className, String methodName, Class<?>... params) {
+		return getTypedMethod(getClass(className), methodName, null, params);
+	}
+
+	/**
+	 * Search for the first publicly and privately defined method of the given name and parameter count.
+	 * 
+	 * @param clazz - a class to start with.
+	 * @param methodName - the method name, or NULL to skip.
+	 * @param params - the expected parameters.
+	 * @return An object that invokes this specific method.
+	 * @throws IllegalStateException If we cannot find this method.
+	 */
+	public static MethodInvoker getMethod(Class<?> clazz, String methodName, Class<?>... params) {
+		return getTypedMethod(clazz, methodName, null, params);
+	}
+
+	/**
+	 * Search for the first publicly and privately defined method of the given name and parameter count.
+	 * 
+	 * @param clazz - a class to start with.
+	 * @param methodName - the method name, or NULL to skip.
+	 * @param returnType - the expected return type, or NULL to ignore.
+	 * @param params - the expected parameters.
+	 * @return An object that invokes this specific method.
+	 * @throws IllegalStateException If we cannot find this method.
+	 */
+	public static MethodInvoker getTypedMethod(Class<?> clazz, String methodName, Class<?> returnType, Class<?>... params) {
+		for (final Method method : clazz.getDeclaredMethods()) {
+			if ((methodName == null || method.getName().equals(methodName))
+					&& (returnType == null || method.getReturnType().equals(returnType))
+					&& Arrays.equals(method.getParameterTypes(), params)) {
+				method.setAccessible(true);
+
+				return new MethodInvoker() {
+
+					@Override
+					public Object invoke(Object target, Object... arguments) {
+						try {
+							return method.invoke(target, arguments);
+						} catch (Exception e) {
+							throw new RuntimeException("Cannot invoke method " + method, e);
+						}
+					}
+
+				};
+			}
+		}
+
+		// Search in every superclass
+		if (clazz.getSuperclass() != null)
+			return getMethod(clazz.getSuperclass(), methodName, params);
+
+		throw new IllegalStateException(String.format("Unable to find method %s (%s).", methodName, Arrays.asList(params)));
+	}
+
+	/**
+	 * Search for the first publically and privately defined constructor of the given name and parameter count.
+	 * 
+	 * @param className - lookup name of the class, see {@link #getClass(String)}.
+	 * @param params - the expected parameters.
+	 * @return An object that invokes this constructor.
+	 * @throws IllegalStateException If we cannot find this method.
+	 */
+	public static ConstructorInvoker getConstructor(String className, Class<?>... params) {
+		return getConstructor(getClass(className), params);
+	}
+
+	/**
+	 * Search for the first publically and privately defined constructor of the given name and parameter count.
+	 * 
+	 * @param clazz - a class to start with.
+	 * @param params - the expected parameters.
+	 * @return An object that invokes this constructor.
+	 * @throws IllegalStateException If we cannot find this method.
+	 */
+	public static ConstructorInvoker getConstructor(Class<?> clazz, Class<?>... params) {
+		for (final Constructor<?> constructor : clazz.getDeclaredConstructors()) {
+			if (Arrays.equals(constructor.getParameterTypes(), params)) {
+				constructor.setAccessible(true);
+
+				return new ConstructorInvoker() {
+
+					@Override
+					public Object invoke(Object... arguments) {
+						try {
+							return constructor.newInstance(arguments);
+						} catch (Exception e) {
+							throw new RuntimeException("Cannot invoke constructor " + constructor, e);
+						}
+					}
+
+				};
+			}
+		}
+
+		throw new IllegalStateException(String.format("Unable to find constructor for %s (%s).", clazz, Arrays.asList(params)));
+	}
+
+	/**
+	 * Retrieve a class from its full name, without knowing its type on compile time.
+	 * <p>
+	 * This is useful when looking up fields by a NMS or OBC type.
+	 * <p>
+	 * 
+	 * @see {@link #getClass()} for more information.
+	 * @param lookupName - the class name with variables.
+	 * @return The class.
+	 */
+	public static Class<Object> getUntypedClass(String lookupName) {
+		@SuppressWarnings({ "rawtypes", "unchecked" })
+		Class<Object> clazz = (Class) getClass(lookupName);
+		return clazz;
+	}
+
+	/**
+	 * Retrieve a class from its full name.
+	 * <p>
+	 * Strings enclosed with curly brackets - such as {TEXT} - will be replaced according to the following table:
+	 * <p>
+	 * <table border="1">
+	 * <tr>
+	 * <th>Variable</th>
+	 * <th>Content</th>
+	 * </tr>
+	 * <tr>
+	 * <td>{nms}</td>
+	 * <td>Actual package name of net.minecraft.server.VERSION</td>
+	 * </tr>
+	 * <tr>
+	 * <td>{obc}</td>
+	 * <td>Actual pacakge name of org.bukkit.craftbukkit.VERSION</td>
+	 * </tr>
+	 * <tr>
+	 * <td>{version}</td>
+	 * <td>The current Minecraft package VERSION, if any.</td>
+	 * </tr>
+	 * </table>
+	 * 
+	 * @param lookupName - the class name with variables.
+	 * @return The looked up class.
+	 * @throws IllegalArgumentException If a variable or class could not be found.
+	 */
+	public static Class<?> getClass(String lookupName) {
+		return getCanonicalClass(expandVariables(lookupName));
+	}
+
+	/**
+	 * Retrieve a class in the net.minecraft.server.VERSION.* package.
+	 * 
+	 * @param name - the name of the class, excluding the package.
+	 * @throws IllegalArgumentException If the class doesn't exist.
+	 */
+	public static Class<?> getMinecraftClass(String name) {
+		return getCanonicalClass(NMS_PREFIX + "." + name);
+	}
+
+	/**
+	 * Retrieve a class in the org.bukkit.craftbukkit.VERSION.* package.
+	 * 
+	 * @param name - the name of the class, excluding the package.
+	 * @throws IllegalArgumentException If the class doesn't exist.
+	 */
+	public static Class<?> getCraftBukkitClass(String name) {
+		return getCanonicalClass(OBC_PREFIX + "." + name);
+	}
+
+	/**
+	 * Retrieve a class by its canonical name.
+	 * 
+	 * @param canonicalName - the canonical name.
+	 * @return The class.
+	 */
+	private static Class<?> getCanonicalClass(String canonicalName) {
+		try {
+			return Class.forName(canonicalName);
+		} catch (ClassNotFoundException e) {
+			throw new IllegalArgumentException("Cannot find " + canonicalName, e);
+		}
+	}
+
+	/**
+	 * Expand variables such as "{nms}" and "{obc}" to their corresponding packages.
+	 * 
+	 * @param name - the full name of the class.
+	 * @return The expanded string.
+	 */
+	private static String expandVariables(String name) {
+		StringBuffer output = new StringBuffer();
+		Matcher matcher = MATCH_VARIABLE.matcher(name);
+
+		while (matcher.find()) {
+			String variable = matcher.group(1);
+			String replacement = "";
+
+			// Expand all detected variables
+			if ("nms".equalsIgnoreCase(variable))
+				replacement = NMS_PREFIX;
+			else if ("obc".equalsIgnoreCase(variable))
+				replacement = OBC_PREFIX;
+			else if ("version".equalsIgnoreCase(variable))
+				replacement = VERSION;
+			else
+				throw new IllegalArgumentException("Unknown variable: " + variable);
+
+			// Assume the expanded variables are all packages, and append a dot
+			if (replacement.length() > 0 && matcher.end() < name.length() && name.charAt(matcher.end()) != '.')
+				replacement += ".";
+			matcher.appendReplacement(output, Matcher.quoteReplacement(replacement));
+		}
+
+		matcher.appendTail(output);
+		return output.toString();
+	}
+}

TinyProtocol/src/main/java/com/comphenix/tinyprotocol/TinyProtocol.java

@@ -0,0 +1,522 @@
+package com.comphenix.tinyprotocol;
+
+import io.netty.channel.Channel;
+import io.netty.channel.ChannelDuplexHandler;
+import io.netty.channel.ChannelFuture;
+import io.netty.channel.ChannelHandlerContext;
+import io.netty.channel.ChannelInboundHandlerAdapter;
+import io.netty.channel.ChannelInitializer;
+import io.netty.channel.ChannelPipeline;
+import io.netty.channel.ChannelPromise;
+
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+import java.util.NoSuchElementException;
+import java.util.Set;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.logging.Level;
+
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.EventHandler;
+import org.bukkit.event.EventPriority;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.Listener;
+import org.bukkit.event.player.PlayerLoginEvent;
+import org.bukkit.event.server.PluginDisableEvent;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.scheduler.BukkitRunnable;
+
+import com.comphenix.tinyprotocol.Reflection.FieldAccessor;
+import com.comphenix.tinyprotocol.Reflection.MethodInvoker;
+import com.google.common.collect.Lists;
+import com.google.common.collect.MapMaker;
+import com.mojang.authlib.GameProfile;
+
+/**
+ * Represents a very tiny alternative to ProtocolLib.
+ * <p>
+ * It now supports intercepting packets during login and status ping (such as OUT_SERVER_PING)!
+ * 
+ * @author Kristian
+ */
+public abstract class TinyProtocol {
+	private static final AtomicInteger ID = new AtomicInteger(0);
+
+	// Used in order to lookup a channel
+	private static final MethodInvoker getPlayerHandle = Reflection.getMethod("{obc}.entity.CraftPlayer", "getHandle");
+	private static final FieldAccessor<Object> getConnection = Reflection.getField("{nms}.EntityPlayer", "playerConnection", Object.class);
+	private static final FieldAccessor<Object> getManager = Reflection.getField("{nms}.PlayerConnection", "networkManager", Object.class);
+	private static final FieldAccessor<Channel> getChannel = Reflection.getField("{nms}.NetworkManager", Channel.class, 0);
+
+	// Looking up ServerConnection
+	private static final Class<Object> minecraftServerClass = Reflection.getUntypedClass("{nms}.MinecraftServer");
+	private static final Class<Object> serverConnectionClass = Reflection.getUntypedClass("{nms}.ServerConnection");
+	private static final FieldAccessor<Object> getMinecraftServer = Reflection.getField("{obc}.CraftServer", minecraftServerClass, 0);
+	private static final FieldAccessor<Object> getServerConnection = Reflection.getField(minecraftServerClass, serverConnectionClass, 0);
+	private static final MethodInvoker getNetworkMarkers = Reflection.getTypedMethod(serverConnectionClass, null, List.class, serverConnectionClass);
+
+	// Packets we have to intercept
+	private static final Class<?> PACKET_LOGIN_IN_START = Reflection.getMinecraftClass("PacketLoginInStart");
+	private static final FieldAccessor<GameProfile> getGameProfile = Reflection.getField(PACKET_LOGIN_IN_START, GameProfile.class, 0);
+
+	// Speedup channel lookup
+	private Map<String, Channel> channelLookup = new MapMaker().weakValues().makeMap();
+	private Listener listener;
+
+	// Channels that have already been removed
+	private Set<Channel> uninjectedChannels = Collections.newSetFromMap(new MapMaker().weakKeys().<Channel, Boolean>makeMap());
+
+	// List of network markers
+	private List<Object> networkManagers;
+
+	// Injected channel handlers
+	private List<Channel> serverChannels = Lists.newArrayList();
+	private ChannelInboundHandlerAdapter serverChannelHandler;
+	private ChannelInitializer<Channel> beginInitProtocol;
+	private ChannelInitializer<Channel> endInitProtocol;
+
+	// Current handler name
+	private String handlerName;
+
+	protected volatile boolean closed;
+	protected Plugin plugin;
+
+	/**
+	 * Construct a new instance of TinyProtocol, and start intercepting packets for all connected clients and future clients.
+	 * <p>
+	 * You can construct multiple instances per plugin.
+	 * 
+	 * @param plugin - the plugin.
+	 */
+	public TinyProtocol(final Plugin plugin) {
+		this.plugin = plugin;
+
+		// Compute handler name
+		this.handlerName = getHandlerName();
+
+		// Prepare existing players
+		registerBukkitEvents();
+
+		try {
+			registerChannelHandler();
+			registerPlayers(plugin);
+		} catch (IllegalArgumentException ex) {
+			// Damn you, late bind
+			plugin.getLogger().info("[TinyProtocol] Delaying server channel injection due to late bind.");
+
+			new BukkitRunnable() {
+				@Override
+				public void run() {
+					registerChannelHandler();
+					registerPlayers(plugin);
+					plugin.getLogger().info("[TinyProtocol] Late bind injection successful.");
+				}
+			}.runTask(plugin);
+		}
+	}
+
+	private void createServerChannelHandler() {
+		// Handle connected channels
+		endInitProtocol = new ChannelInitializer<Channel>() {
+
+			@Override
+			protected void initChannel(Channel channel) throws Exception {
+				try {
+					// This can take a while, so we need to stop the main thread from interfering
+					synchronized (networkManagers) {
+						// Stop injecting channels
+						if (!closed) {
+							channel.eventLoop().submit(() -> injectChannelInternal(channel));
+						}
+					}
+				} catch (Exception e) {
+					plugin.getLogger().log(Level.SEVERE, "Cannot inject incomming channel " + channel, e);
+				}
+			}
+
+		};
+
+		// This is executed before Minecraft's channel handler
+		beginInitProtocol = new ChannelInitializer<Channel>() {
+
+			@Override
+			protected void initChannel(Channel channel) throws Exception {
+				channel.pipeline().addLast(endInitProtocol);
+			}
+
+		};
+
+		serverChannelHandler = new ChannelInboundHandlerAdapter() {
+	
+			@Override
+			public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
+				Channel channel = (Channel) msg;
+
+				// Prepare to initialize ths channel
+				channel.pipeline().addFirst(beginInitProtocol);
+				ctx.fireChannelRead(msg);
+			}
+
+		};
+	}
+
+	/**
+	 * Register bukkit events.
+	 */
+	private void registerBukkitEvents() {
+		listener = new Listener() {
+
+			@EventHandler(priority = EventPriority.LOWEST)
+			public final void onPlayerLogin(PlayerLoginEvent e) {
+				if (closed)
+					return;
+
+				Channel channel = getChannel(e.getPlayer());
+
+				// Don't inject players that have been explicitly uninjected
+				if (!uninjectedChannels.contains(channel)) {
+					injectPlayer(e.getPlayer());
+				}
+			}
+
+			@EventHandler
+			public final void onPluginDisable(PluginDisableEvent e) {
+				if (e.getPlugin().equals(plugin)) {
+					close();
+				}
+			}
+
+		};
+
+		plugin.getServer().getPluginManager().registerEvents(listener, plugin);
+	}
+
+	@SuppressWarnings("unchecked")
+	private void registerChannelHandler() {
+		Object mcServer = getMinecraftServer.get(Bukkit.getServer());
+		Object serverConnection = getServerConnection.get(mcServer);
+		boolean looking = true;
+
+		// We need to synchronize against this list
+		networkManagers = (List<Object>) getNetworkMarkers.invoke(null, serverConnection);
+		createServerChannelHandler();
+
+		// Find the correct list, or implicitly throw an exception
+		for (int i = 0; looking; i++) {
+			List<Object> list = Reflection.getField(serverConnection.getClass(), List.class, i).get(serverConnection);
+
+			for (Object item : list) {
+				if (!ChannelFuture.class.isInstance(item))
+					break;
+
+				// Channel future that contains the server connection
+				Channel serverChannel = ((ChannelFuture) item).channel();
+
+				serverChannels.add(serverChannel);
+				serverChannel.pipeline().addFirst(serverChannelHandler);
+				looking = false;
+			}
+		}
+	}
+
+	private void unregisterChannelHandler() {
+		if (serverChannelHandler == null)
+			return;
+
+		for (Channel serverChannel : serverChannels) {
+			final ChannelPipeline pipeline = serverChannel.pipeline();
+
+			// Remove channel handler
+			serverChannel.eventLoop().execute(new Runnable() {
+
+				@Override
+				public void run() {
+					try {
+						pipeline.remove(serverChannelHandler);
+					} catch (NoSuchElementException e) {
+						// That's fine
+					}
+				}
+
+			});
+		}
+	}
+
+	private void registerPlayers(Plugin plugin) {
+		for (Player player : plugin.getServer().getOnlinePlayers()) {
+			injectPlayer(player);
+		}
+	}
+
+	/**
+	 * Invoked when the server is starting to send a packet to a player.
+	 * <p>
+	 * Note that this is not executed on the main thread.
+	 * 
+	 * @param receiver - the receiving player, NULL for early login/status packets.
+	 * @param channel - the channel that received the packet. Never NULL.
+	 * @param packet - the packet being sent.
+	 * @return The packet to send instead, or NULL to cancel the transmission.
+	 */
+	public Object onPacketOutAsync(Player receiver, Channel channel, Object packet) {
+		return packet;
+	}
+
+	/**
+	 * Invoked when the server has received a packet from a given player.
+	 * <p>
+	 * Use {@link Channel#remoteAddress()} to get the remote address of the client.
+	 * 
+	 * @param sender - the player that sent the packet, NULL for early login/status packets.
+	 * @param channel - channel that received the packet. Never NULL.
+	 * @param packet - the packet being received.
+	 * @return The packet to recieve instead, or NULL to cancel.
+	 */
+	public Object onPacketInAsync(Player sender, Channel channel, Object packet) {
+		return packet;
+	}
+
+	/**
+	 * Send a packet to a particular player.
+	 * <p>
+	 * Note that {@link #onPacketOutAsync(Player, Channel, Object)} will be invoked with this packet.
+	 * 
+	 * @param player - the destination player.
+	 * @param packet - the packet to send.
+	 */
+	public void sendPacket(Player player, Object packet) {
+		sendPacket(getChannel(player), packet);
+	}
+
+	/**
+	 * Send a packet to a particular client.
+	 * <p>
+	 * Note that {@link #onPacketOutAsync(Player, Channel, Object)} will be invoked with this packet.
+	 * 
+	 * @param channel - client identified by a channel.
+	 * @param packet - the packet to send.
+	 */
+	public void sendPacket(Channel channel, Object packet) {
+		channel.pipeline().writeAndFlush(packet);
+	}
+
+	/**
+	 * Pretend that a given packet has been received from a player.
+	 * <p>
+	 * Note that {@link #onPacketInAsync(Player, Channel, Object)} will be invoked with this packet.
+	 * 
+	 * @param player - the player that sent the packet.
+	 * @param packet - the packet that will be received by the server.
+	 */
+	public void receivePacket(Player player, Object packet) {
+		receivePacket(getChannel(player), packet);
+	}
+
+	/**
+	 * Pretend that a given packet has been received from a given client.
+	 * <p>
+	 * Note that {@link #onPacketInAsync(Player, Channel, Object)} will be invoked with this packet.
+	 * 
+	 * @param channel - client identified by a channel.
+	 * @param packet - the packet that will be received by the server.
+	 */
+	public void receivePacket(Channel channel, Object packet) {
+		channel.pipeline().context("encoder").fireChannelRead(packet);
+	}
+
+	/**
+	 * Retrieve the name of the channel injector, default implementation is "tiny-" + plugin name + "-" + a unique ID.
+	 * <p>
+	 * Note that this method will only be invoked once. It is no longer necessary to override this to support multiple instances.
+	 * 
+	 * @return A unique channel handler name.
+	 */
+	protected String getHandlerName() {
+		return "tiny-" + plugin.getName() + "-" + ID.incrementAndGet();
+	}
+
+	/**
+	 * Add a custom channel handler to the given player's channel pipeline, allowing us to intercept sent and received packets.
+	 * <p>
+	 * This will automatically be called when a player has logged in.
+	 * 
+	 * @param player - the player to inject.
+	 */
+	public void injectPlayer(Player player) {
+		injectChannelInternal(getChannel(player)).player = player;
+	}
+
+	/**
+	 * Add a custom channel handler to the given channel.
+	 * 
+	 * @param channel - the channel to inject.
+	 * @return The intercepted channel, or NULL if it has already been injected.
+	 */
+	public void injectChannel(Channel channel) {
+		injectChannelInternal(channel);
+	}
+
+	/**
+	 * Add a custom channel handler to the given channel.
+	 * 
+	 * @param channel - the channel to inject.
+	 * @return The packet interceptor.
+	 */
+	private PacketInterceptor injectChannelInternal(Channel channel) {
+		try {
+			PacketInterceptor interceptor = (PacketInterceptor) channel.pipeline().get(handlerName);
+
+			// Inject our packet interceptor
+			if (interceptor == null) {
+				interceptor = new PacketInterceptor();
+				channel.pipeline().addBefore("packet_handler", handlerName, interceptor);
+				uninjectedChannels.remove(channel);
+			}
+
+			return interceptor;
+		} catch (IllegalArgumentException e) {
+			// Try again
+			return (PacketInterceptor) channel.pipeline().get(handlerName);
+		}
+	}
+
+	/**
+	 * Retrieve the Netty channel associated with a player. This is cached.
+	 * 
+	 * @param player - the player.
+	 * @return The Netty channel.
+	 */
+	public Channel getChannel(Player player) {
+		Channel channel = channelLookup.get(player.getName());
+
+		// Lookup channel again
+		if (channel == null) {
+			Object connection = getConnection.get(getPlayerHandle.invoke(player));
+			Object manager = getManager.get(connection);
+
+			channelLookup.put(player.getName(), channel = getChannel.get(manager));
+		}
+
+		return channel;
+	}
+
+	/**
+	 * Uninject a specific player.
+	 * 
+	 * @param player - the injected player.
+	 */
+	public void uninjectPlayer(Player player) {
+		uninjectChannel(getChannel(player));
+	}
+
+	/**
+	 * Uninject a specific channel.
+	 * <p>
+	 * This will also disable the automatic channel injection that occurs when a player has properly logged in.
+	 * 
+	 * @param channel - the injected channel.
+	 */
+	public void uninjectChannel(final Channel channel) {
+		// No need to guard against this if we're closing
+		if (!closed) {
+			uninjectedChannels.add(channel);
+		}
+
+		// See ChannelInjector in ProtocolLib, line 590
+		channel.eventLoop().execute(new Runnable() {
+
+			@Override
+			public void run() {
+				channel.pipeline().remove(handlerName);
+			}
+
+		});
+	}
+
+	/**
+	 * Determine if the given player has been injected by TinyProtocol.
+	 * 
+	 * @param player - the player.
+	 * @return TRUE if it is, FALSE otherwise.
+	 */
+	public boolean hasInjected(Player player) {
+		return hasInjected(getChannel(player));
+	}
+
+	/**
+	 * Determine if the given channel has been injected by TinyProtocol.
+	 * 
+	 * @param channel - the channel.
+	 * @return TRUE if it is, FALSE otherwise.
+	 */
+	public boolean hasInjected(Channel channel) {
+		return channel.pipeline().get(handlerName) != null;
+	}
+
+	/**
+	 * Cease listening for packets. This is called automatically when your plugin is disabled.
+	 */
+	public final void close() {
+		if (!closed) {
+			closed = true;
+
+			// Remove our handlers
+			for (Player player : plugin.getServer().getOnlinePlayers()) {
+				uninjectPlayer(player);
+			}
+
+			// Clean up Bukkit
+			HandlerList.unregisterAll(listener);
+			unregisterChannelHandler();
+		}
+	}
+
+	/**
+	 * Channel handler that is inserted into the player's channel pipeline, allowing us to intercept sent and received packets.
+	 * 
+	 * @author Kristian
+	 */
+	private final class PacketInterceptor extends ChannelDuplexHandler {
+		// Updated by the login event
+		public volatile Player player;
+
+		@Override
+		public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
+			// Intercept channel
+			final Channel channel = ctx.channel();
+			handleLoginStart(channel, msg);
+
+			try {
+				msg = onPacketInAsync(player, channel, msg);
+			} catch (Exception e) {
+				plugin.getLogger().log(Level.SEVERE, "Error in onPacketInAsync().", e);
+			}
+
+			if (msg != null) {
+				super.channelRead(ctx, msg);
+			}
+		}
+
+		@Override
+		public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise promise) throws Exception {
+			try {
+				msg = onPacketOutAsync(player, ctx.channel(), msg);
+			} catch (Exception e) {
+				plugin.getLogger().log(Level.SEVERE, "Error in onPacketOutAsync().", e);
+			}
+
+			if (msg != null) {
+				super.write(ctx, msg, promise);
+			}
+		}
+
+		private void handleLoginStart(Channel channel, Object packet) {
+			if (PACKET_LOGIN_IN_START.isInstance(packet)) {
+				GameProfile profile = getGameProfile.get(packet);
+				channelLookup.put(profile.getName(), channel);
+			}
+		}
+	}
+}

TinyProtocol/src/main/resources/plugin.yml

@@ -0,0 +1,14 @@
+name: TinyProtocol
+version: 0.1.0
+description: Intercept packets without ProtocolLib
+author: Comphenix
+
+load: startup
+
+main: com.comphenix.tinyprotocol.ExamplePlugin
+database: false
+
+commands:
+   toggleinjection:
+      description: Toggle the TinyProtocol injection of the current player.
+      usage: /<command>

pom.xml

@@ -0,0 +1,335 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+    <groupId>com.comphenix.protocol</groupId>
+	<artifactId>ProtocolLib</artifactId>
+	<name>ProtocolLib</name>
+	<version>4.5.1</version>
+
+	<description>Provides read/write access to the Minecraft protocol.</description>
+	<url>https://github.com/dmulloy2/ProtocolLib</url>
+	<packaging>jar</packaging>
+	<inceptionYear>2012</inceptionYear>
+
+	<properties>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.build.number></project.build.number>
+		<project.fullVersion>${project.version}</project.fullVersion>
+
+		<powermock.version>2.0.4</powermock.version>
+		<spigot.version>1.15.2-R0.1-SNAPSHOT</spigot.version>
+	</properties>
+
+	<build>
+		<defaultGoal>clean install</defaultGoal>
+		<sourceDirectory>src/main/java</sourceDirectory>
+		<testSourceDirectory>src/test/java</testSourceDirectory>
+		<resources>
+			<resource>
+				<directory>src/main/resources</directory>
+				<filtering>true</filtering>
+				<excludes>
+					<exclude>**/*.java</exclude>
+				</excludes>
+			</resource>
+		</resources>
+
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-shade-plugin</artifactId>
+				<version>3.2.1</version>
+				<executions>
+					<execution>
+						<phase>package</phase>
+						<goals>
+							<goal>shade</goal>
+						</goals>
+						<configuration>
+							<shadedArtifactAttached>false</shadedArtifactAttached>
+							<createDependencyReducedPom>false</createDependencyReducedPom>
+
+							<relocations>
+								<relocation>
+									<pattern>net.sf</pattern>
+									<shadedPattern>com.comphenix.net.sf</shadedPattern>
+								</relocation>
+							</relocations>
+
+							<artifactSet>
+								<excludes>
+									<exclude>org.spigotmc:spigot</exclude>
+									<exclude>org.spigotmc:spigot-api</exclude>
+									<exclude>junit:junit</exclude>
+									<exclude>io.netty:*</exclude>
+								</excludes>
+							</artifactSet>
+						</configuration>
+					</execution>
+				</executions>
+			</plugin>
+
+			<plugin>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>3.8.1</version>
+				<configuration>
+					<source>1.8</source>
+					<target>1.8</target>
+				</configuration>
+			</plugin>
+
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-jar-plugin</artifactId>
+				<version>3.2.0</version>
+				<configuration>
+					<archive>
+						<manifestEntries>
+							<Main-Class>com.comphenix.protocol.Application</Main-Class>
+							<Implementation-Title>ProtocolLib</Implementation-Title>
+							<Implementation-Version>${project.fullVersion}</Implementation-Version>
+							<Implementation-Vendor>dmulloy2</Implementation-Vendor>
+						</manifestEntries>
+					</archive>
+					<finalName>${project.name}</finalName>
+				</configuration>
+			</plugin>
+
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-surefire-plugin</artifactId>
+				<version>3.0.0-M4</version>
+				<configuration>
+					<systemProperties>
+						<property>
+							<name>projectVersion</name>
+							<value>${project.version}</value>
+						</property>
+					</systemProperties>
+				</configuration>
+			</plugin>
+
+			<plugin>
+				<artifactId>maven-javadoc-plugin</artifactId>
+				<version>3.1.1</version>
+				<configuration>
+					<failOnError>false</failOnError>
+					<encoding>ISO-8859-1</encoding>
+					<doctitle>ProtocolLib JavaDocs</doctitle>
+					<windowtitle>ProtocolLib JavaDocs</windowtitle>
+					<bottom>Copyright &#169; {inceptionYear}&#x2013;{currentYear}
+						Comphenix and dmulloy2. Licensed under the GNU GPL v2.</bottom>
+					<additionalOptions>
+						<additionalOption>-Xdoclint:none</additionalOption>
+					</additionalOptions>
+				</configuration>
+				<executions>
+					<execution>
+						<phase>install</phase>
+						<goals>
+							<goal>aggregate</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+		</plugins>
+	</build>
+
+	<profiles>
+		<profile>
+			<id>jenkins</id>
+			<activation>
+				<property>
+					<name>env.BUILD_NUMBER</name>
+				</property>
+			</activation>
+			<properties>
+				<project.build.number>-b${env.BUILD_NUMBER}</project.build.number>
+				<!--<project.fullVersion>${project.version}${project.build.number}</project.fullVersion>-->
+				<project.fullVersion>${project.version}</project.fullVersion>
+			</properties>
+		</profile>
+
+		<profile>
+			<id>release-sign-artifacts</id>
+			<activation>
+				<property>
+					<name>performRelease</name>
+					<value>true</value>
+				</property>
+			</activation>
+			<properties>
+				<project.fullVersion>${project.version}</project.fullVersion>
+			</properties>
+			<build>
+				<plugins>
+					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
+						<artifactId>maven-source-plugin</artifactId>
+						<version>3.2.0</version>
+						<executions>
+							<execution>
+								<id>attach-sources</id>
+								<goals>
+									<goal>jar</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+
+					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
+						<artifactId>maven-javadoc-plugin</artifactId>
+						<version>3.1.1</version>
+						<executions>
+							<execution>
+								<id>attach-javadocs</id>
+								<goals>
+									<goal>jar</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+
+					<!-- TODO: Look into signing releases
+					<plugin>
+						<groupId>org.apache.maven.plugins</groupId>
+						<artifactId>maven-gpg-plugin</artifactId>
+						<version>1.6</version>
+						<executions>
+							<execution>
+								<id>sign-artifacts</id>
+								<phase>verify</phase>
+								<goals>
+									<goal>sign</goal>
+								</goals>
+							</execution>
+						</executions>
+					</plugin>
+					-->
+
+				</plugins>
+			</build>
+		</profile>
+	</profiles>
+
+	<scm>
+		<connection>scm:git:git://github.com/dmulloy2/ProtocolLib.git</connection>
+		<developerConnection>scm:git:git@github.com:dmulloy2/ProtocolLib.git</developerConnection>
+		<url>https://github.com/dmulloy2/ProtocolLib</url>
+	</scm>
+
+	<licenses>
+		<license>
+			<name>GNU GENERAL PUBLIC LICENSE - Version 2, June 1991</name>
+			<url>http://www.gnu.org/licenses/gpl-2.0.txt</url>
+			<distribution>repo</distribution>
+		</license>
+	</licenses>
+
+	<developers>
+		<developer>
+			<id>dmulloy2</id>
+			<name>Dan Mulloy</name>
+			<url>http://dmulloy2.net/</url>
+			<roles>
+				<role>developer</role>
+				<role>maintainer</role>
+			</roles>
+		</developer>
+		<developer>
+			<id>aadnk</id>
+			<name>Kristian S. Stangeland</name>
+			<email>kr_stang@hotmail.com</email>
+			<url>http://comphenix.net/</url>
+			<roles>
+				<role>former author</role>
+			</roles>
+			<timezone>1</timezone>
+		</developer>
+	</developers>
+
+	<distributionManagement>
+		<repository>
+			<id>dmulloy2-releases</id>
+			<url>https://repo.dmulloy2.net/nexus/repository/releases/</url>
+		</repository>
+		<snapshotRepository>
+			<id>dmulloy2-snapshots</id>
+			<url>https://repo.dmulloy2.net/nexus/repository/snapshots/</url>
+		</snapshotRepository>
+	</distributionManagement>
+
+	<repositories>
+		<repository>
+			<id>dmulloy2-repo</id>
+			<url>https://repo.dmulloy2.net/nexus/repository/public/</url>
+		</repository>
+		<repository>
+			<id>spigot-repo</id>
+			<url>https://hub.spigotmc.org/nexus/content/groups/public/</url>
+		</repository>
+	</repositories>
+
+	<dependencies>
+		<!-- Compile with the old version of Netty for backwards compat -->
+		<dependency>
+			<groupId>io.netty</groupId>
+			<artifactId>netty-all</artifactId>
+			<version>4.0.23.Final</version>
+			<scope>provided</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.spigotmc</groupId>
+			<artifactId>spigot-api</artifactId>
+			<version>${spigot.version}</version>
+			<scope>provided</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.spigotmc</groupId>
+			<artifactId>spigot</artifactId>
+			<version>${spigot.version}</version>
+			<scope>provided</scope>
+		</dependency>
+		<dependency>
+			<groupId>cglib</groupId>
+			<artifactId>cglib-nodep</artifactId>
+			<version>3.2.5</version>
+			<scope>compile</scope>
+		</dependency>
+
+		<!-- TODO fold BukkitExecutors into ProtocolLib -->
+		<dependency>
+			<groupId>com.comphenix.executors</groupId>
+			<artifactId>BukkitExecutors</artifactId>
+			<version>1.1-SNAPSHOT</version>
+			<scope>compile</scope>
+		</dependency>
+
+		<!-- Testing dependencies -->
+		<dependency>
+			<groupId>junit</groupId>
+			<artifactId>junit</artifactId>
+			<version>4.12</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.mockito</groupId>
+			<artifactId>mockito-core</artifactId>
+			<version>3.2.0</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.powermock</groupId>
+			<artifactId>powermock-module-junit4</artifactId>
+			<version>${powermock.version}</version>
+			<scope>test</scope>
+		</dependency>
+		<dependency>
+			<groupId>org.powermock</groupId>
+			<artifactId>powermock-api-mockito2</artifactId>
+			<version>${powermock.version}</version>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+</project>

src/main/java/com/comphenix/protocol/AsynchronousManager.java

@@ -0,0 +1,155 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol;
+
+import java.util.Set;
+
+import org.bukkit.plugin.Plugin;
+
+import com.comphenix.protocol.async.AsyncListenerHandler;
+import com.comphenix.protocol.async.AsyncMarker;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.events.PacketListener;
+
+/**
+ * Represents a asynchronous packet handler.
+ * 
+ * @author Kristian
+ */
+public interface AsynchronousManager {
+	/**
+	 * Registers an asynchronous packet handler.
+	 * <p>
+	 * Use {@link AsyncMarker#incrementProcessingDelay()} to delay a packet until its ready to be transmitted.
+	 * <p>
+	 * To start listening asynchronously, pass the getListenerLoop() runnable to a different thread.
+	 * @param listener - the packet listener that will receive these asynchronous events.
+	 * @return An asynchronous handler.
+	 */
+	public abstract AsyncListenerHandler registerAsyncHandler(PacketListener listener);
+
+	/**
+	 * Unregisters and closes the given asynchronous handler.
+	 * @param handler - asynchronous handler.
+	 */
+	public abstract void unregisterAsyncHandler(AsyncListenerHandler handler);
+
+	/**
+	 * Unregisters and closes the first asynchronous handler associated with the given listener.
+	 * @param listener - asynchronous listener
+	 */
+	public abstract void unregisterAsyncHandler(PacketListener listener);
+	
+	/**
+	 * Unregisters every asynchronous handler associated with this plugin.
+	 * @param plugin - the original plugin.
+	 */
+	public void unregisterAsyncHandlers(Plugin plugin);
+	
+	/**
+	 * Retrieves a immutable set containing the ID of the sent server packets that will be
+	 * observed by the asynchronous listeners.
+	 * <p>
+	 * Deprecated: Use {@link #getSendingTypes()} instead.
+	 * @return Every filtered server packet.
+	 */
+	@Deprecated
+	public abstract Set<Integer> getSendingFilters();
+
+	/**
+	 * Retrieves a immutable set containing the types of the sent server packets that will be
+	 * observed by the asynchronous listeners.
+	 * @return Every filtered server packet.
+	 */
+	public abstract Set<PacketType> getSendingTypes();
+	
+	/**
+	 * Retrieves a immutable set containing the ID of the recieved client packets that will be
+	 * <p>
+	 * Deprecated: Use {@link #getReceivingTypes()} instead.
+	 * observed by the asynchronous listeners.
+	 * @return Every filtered client packet.
+	 */
+	@Deprecated
+	public abstract Set<Integer> getReceivingFilters();
+	
+	/**
+	 * Retrieves a immutable set containing the types of the received client packets that will be
+	 * observed by the asynchronous listeners.
+	 * @return Every filtered client packet.
+	 */
+	public abstract Set<PacketType> getReceivingTypes();
+
+	/**
+	 * Determine if a given synchronous packet has asynchronous listeners.
+	 * @param packet - packet to test.
+	 * @return TRUE if it does, FALSE otherwise.
+	 */
+	public abstract boolean hasAsynchronousListeners(PacketEvent packet);
+
+	/**
+	 * Retrieve the default packet stream.
+	 * @return Default packet stream.
+	 */
+	public abstract PacketStream getPacketStream();
+
+	/**
+	 * Retrieve the default error reporter.
+	 * @return Default reporter.
+	 */
+	public abstract ErrorReporter getErrorReporter();
+
+	/**
+	 * Remove listeners, close threads and transmit every delayed packet.
+	 */
+	public abstract void cleanupAll();
+
+	/**
+	 * Signal that a packet is ready to be transmitted.
+	 * <p>
+	 * This should only be called if {@link com.comphenix.protocol.async.AsyncMarker#incrementProcessingDelay() AsyncMarker.incrementProcessingDelay()}
+	 * has been called previously.
+	 * @param packet - packet to signal.
+	 */
+	public abstract void signalPacketTransmission(PacketEvent packet);
+
+	/**
+	 * Register a synchronous listener that handles packets when they time out.
+	 * @param listener - synchronous listener that will handle timed out packets.
+	 */
+	public abstract void registerTimeoutHandler(PacketListener listener);
+	
+	/**
+	 * Unregisters a given timeout listener.
+	 * @param listener - the timeout listener to unregister.
+	 */
+	public abstract void unregisterTimeoutHandler(PacketListener listener);
+
+	/**
+	 * Get a immutable set of every registered timeout handler.
+	 * @return Set of every registered timeout handler.
+	 */
+	public abstract Set<PacketListener> getTimeoutHandlers();
+
+	/**
+	 * Get an immutable set of every registered asynchronous packet listener.
+	 * @return Set of every asynchronous packet listener.
+	 */
+	public abstract Set<PacketListener> getAsyncHandlers();
+}

src/main/java/com/comphenix/protocol/CleanupStaticMembers.java

@@ -0,0 +1,170 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.util.ArrayList;
+import java.util.List;
+
+import com.comphenix.protocol.async.AsyncListenerHandler;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.error.Report;
+import com.comphenix.protocol.error.ReportType;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.injector.BukkitUnwrapper;
+import com.comphenix.protocol.injector.server.AbstractInputStreamLookup;
+import com.comphenix.protocol.injector.server.TemporaryPlayerFactory;
+import com.comphenix.protocol.injector.spigot.SpigotPacketInjector;
+import com.comphenix.protocol.reflect.FieldUtils;
+import com.comphenix.protocol.reflect.FuzzyReflection;
+import com.comphenix.protocol.reflect.MethodUtils;
+import com.comphenix.protocol.reflect.ObjectWriter;
+import com.comphenix.protocol.reflect.compiler.BackgroundCompiler;
+import com.comphenix.protocol.reflect.compiler.StructureCompiler;
+import com.comphenix.protocol.reflect.instances.CollectionGenerator;
+import com.comphenix.protocol.reflect.instances.DefaultInstances;
+import com.comphenix.protocol.reflect.instances.PrimitiveGenerator;
+import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.wrappers.ChunkPosition;
+import com.comphenix.protocol.wrappers.WrappedDataWatcher;
+import com.comphenix.protocol.wrappers.WrappedWatchableObject;
+import com.comphenix.protocol.wrappers.nbt.io.NbtBinarySerializer;
+
+/**
+ * Used to fix ClassLoader leaks that may lead to filling up the permanent generation.
+ * 
+ * @author Kristian
+ */
+class CleanupStaticMembers {
+	// Reports
+	public final static ReportType REPORT_CANNOT_RESET_FIELD = new ReportType("Unable to reset field %s: %s");
+	public final static ReportType REPORT_CANNOT_UNLOAD_CLASS = new ReportType("Unable to unload class %s.");
+	
+	private ClassLoader loader;
+	private ErrorReporter reporter;
+
+	public CleanupStaticMembers(ClassLoader loader, ErrorReporter reporter) {
+		this.loader = loader;
+		this.reporter = reporter;
+	}
+	
+	/**
+	 * Ensure that the previous ClassLoader is not leaking.
+	 */
+	public void resetAll() {
+		// This list must always be updated
+		@SuppressWarnings("deprecation")
+		Class<?>[] publicClasses = { 
+				AsyncListenerHandler.class, ListeningWhitelist.class, PacketContainer.class, 
+				BukkitUnwrapper.class, DefaultInstances.class, CollectionGenerator.class,
+				PrimitiveGenerator.class, FuzzyReflection.class, MethodUtils.class, 
+				BackgroundCompiler.class, StructureCompiler.class,
+				ObjectWriter.class, Packets.Server.class, Packets.Client.class, 
+				ChunkPosition.class, WrappedDataWatcher.class, WrappedWatchableObject.class,
+				AbstractInputStreamLookup.class, TemporaryPlayerFactory.class, SpigotPacketInjector.class,
+				MinecraftReflection.class, NbtBinarySerializer.class
+		};
+							   			
+		String[] internalClasses = {
+			 "com.comphenix.protocol.events.SerializedOfflinePlayer",
+			 "com.comphenix.protocol.injector.player.InjectedServerConnection",
+			 "com.comphenix.protocol.injector.player.NetworkFieldInjector",
+			 "com.comphenix.protocol.injector.player.NetworkObjectInjector",
+			 "com.comphenix.protocol.injector.player.NetworkServerInjector",
+			 "com.comphenix.protocol.injector.player.PlayerInjector",
+			 "com.comphenix.protocol.injector.EntityUtilities",
+			 "com.comphenix.protocol.injector.packet.PacketRegistry",
+			 "com.comphenix.protocol.injector.packet.PacketInjector",
+			 "com.comphenix.protocol.injector.packet.ReadPacketModifier",
+			 "com.comphenix.protocol.injector.StructureCache",
+			 "com.comphenix.protocol.reflect.compiler.BoxingHelper",
+			 "com.comphenix.protocol.reflect.compiler.MethodDescriptor",
+			 "com.comphenix.protocol.wrappers.nbt.WrappedElement",
+		};
+		
+		resetClasses(publicClasses);
+		resetClasses(getClasses(loader, internalClasses));
+	}
+	
+	private void resetClasses(Class<?>[] classes) {
+		// Reset each class one by one
+		for (Class<?> clazz : classes) {
+			resetClass(clazz);
+		}
+	}
+	
+	private void resetClass(Class<?> clazz) {
+		for (Field field : clazz.getFields()) {
+			Class<?> type = field.getType();
+			
+			// Only check static non-primitive fields. We also skip strings.
+			if (Modifier.isStatic(field.getModifiers()) && 
+					!type.isPrimitive() && !type.equals(String.class) && 
+					!type.equals(ReportType.class)) {
+				
+				try {
+					setFinalStatic(field, null);
+				} catch (IllegalAccessException e) {
+					// Just inform the player
+					reporter.reportWarning(this, 
+							Report.newBuilder(REPORT_CANNOT_RESET_FIELD).error(e).messageParam(field.getName(), e.getMessage())
+					);
+					e.printStackTrace();
+				}
+			}
+		}
+	}
+
+	// HACK! HAACK!
+	private static void setFinalStatic(Field field, Object newValue) throws IllegalAccessException {
+		int modifier = field.getModifiers();
+		boolean isFinal = Modifier.isFinal(modifier);
+		
+		Field modifiersField = isFinal ? FieldUtils.getField(Field.class, "modifiers", true) : null;
+
+		// We have to remove the final field first
+		if (isFinal) {
+			FieldUtils.writeField(modifiersField, field, modifier & ~Modifier.FINAL, true);
+		}
+			
+		// Now we can safely modify the field
+		FieldUtils.writeStaticField(field, newValue, true);
+		
+		// Revert modifier
+		if (isFinal) {
+			FieldUtils.writeField(modifiersField, field, modifier, true);
+		}
+	}
+	
+	private Class<?>[] getClasses(ClassLoader loader, String[] names) {
+		List<Class<?>> output = new ArrayList<Class<?>>();
+		
+		for (String name : names) {
+			try {
+				output.add(loader.loadClass(name));
+			} catch (ClassNotFoundException e) {
+				// Warn the user
+				reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_UNLOAD_CLASS).error(e).messageParam(name));
+			}
+		}
+		
+		return output.toArray(new Class<?>[0]);
+	}
+}

src/main/java/com/comphenix/protocol/CommandBase.java

@@ -0,0 +1,156 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol;
+
+import java.util.ArrayDeque;
+import java.util.Arrays;
+import java.util.Deque;
+
+import org.bukkit.ChatColor;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.error.Report;
+import com.comphenix.protocol.error.ReportType;
+
+/**
+ * Base class for all our commands.
+ * 
+ * @author Kristian
+ */
+abstract class CommandBase implements CommandExecutor {
+	public static final ReportType REPORT_COMMAND_ERROR = new ReportType("Cannot execute command %s.");
+	public static final ReportType REPORT_UNEXPECTED_COMMAND = new ReportType("Incorrect command assigned to %s.");
+	
+	public static final String PERMISSION_ADMIN = "protocol.admin";
+	
+	private String permission;
+	private String name;
+	private int minimumArgumentCount;
+	
+	protected ErrorReporter reporter;
+	
+	public CommandBase(ErrorReporter reporter, String permission, String name) {
+		this(reporter, permission, name, 0);
+	}
+	
+	public CommandBase(ErrorReporter reporter, String permission, String name, int minimumArgumentCount) {
+		this.reporter = reporter;
+		this.name = name;
+		this.permission = permission;
+		this.minimumArgumentCount = minimumArgumentCount;
+	}
+
+	@Override
+	public final boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+		try {
+			// Make sure we're dealing with the correct command
+			if (!command.getName().equalsIgnoreCase(name)) {
+				reporter.reportWarning(this, Report.newBuilder(REPORT_UNEXPECTED_COMMAND).messageParam(this));
+				return false;
+			}
+
+			if (permission != null && !sender.hasPermission(permission)) {
+				sender.sendMessage(ChatColor.RED + "You haven't got permission to run this command.");
+				return true;
+			}
+			
+			// Check argument length
+			if (args != null && args.length >= minimumArgumentCount) {
+				return handleCommand(sender, args);
+			} else {
+				sender.sendMessage(ChatColor.RED + "Insufficient arguments. You need at least " + minimumArgumentCount);
+				return false;
+			}
+		} catch (Throwable ex) {
+			reporter.reportDetailed(this,
+					Report.newBuilder(REPORT_COMMAND_ERROR).error(ex).messageParam(name).callerParam(sender, label, args)
+			);
+			return true;
+		}
+	}
+
+	/**
+	 * Parse a boolean value at the head of the queue.
+	 * @param arguments - the queue of arguments.
+	 * @param parameterName - the parameter name we will match.
+	 * @return The parsed boolean, or NULL if not valid.
+	 */
+	protected Boolean parseBoolean(Deque<String> arguments, String parameterName) {
+		Boolean result = null;
+		
+		if (!arguments.isEmpty()) {
+			String arg = arguments.peek();
+			
+			if (arg.equalsIgnoreCase("true") || arg.equalsIgnoreCase("on"))
+				result = true;
+			else if (arg.equalsIgnoreCase(parameterName))
+				result = true;
+			else if (arg.equalsIgnoreCase("false") || arg.equalsIgnoreCase("off"))
+				result = false;
+		}
+		
+		if (result != null)
+			arguments.poll();
+		return result;
+	}
+		
+	/**
+	 * Create a queue from a sublist of a given array.
+	 * @param args - the source array.
+	 * @param start - the starting index.
+	 * @return A queue that contains every element in the array, starting at the given index.
+	 */
+	protected Deque<String> toQueue(String[] args, int start) {
+		return new ArrayDeque<String>(Arrays.asList(args).subList(start, args.length));
+	}
+	
+	/**
+	 * Retrieve the permission necessary to execute this command.
+	 * @return The permission, or NULL if not needed.
+	 */
+	public String getPermission() {
+		return permission;
+	}
+	
+	/**
+	 * Retrieve the primary name of this command.
+	 * @return Primary name.
+	 */
+	public String getName() {
+		return name;
+	}
+	
+	/**
+	 * Retrieve the error reporter.
+	 * @return Error reporter.
+	 */
+	protected ErrorReporter getReporter() {
+		return reporter;
+	}
+	
+	/**
+	 * Main implementation of this command.
+	 * @param sender - command sender.
+	 * @param args - input arguments.
+	 * @return TRUE if the command was successfully handled, FALSE otherwise.
+	 */
+	protected abstract boolean handleCommand(CommandSender sender, String[] args);
+}

src/main/java/com/comphenix/protocol/CommandFilter.java

@@ -0,0 +1,481 @@
+package com.comphenix.protocol;
+
+import java.util.ArrayList;
+import java.util.Deque;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Set;
+
+import javax.script.Invocable;
+import javax.script.ScriptEngine;
+import javax.script.ScriptEngineManager;
+import javax.script.ScriptException;
+
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.conversations.Conversable;
+import org.bukkit.conversations.Conversation;
+import org.bukkit.conversations.ConversationAbandonedEvent;
+import org.bukkit.conversations.ConversationAbandonedListener;
+import org.bukkit.conversations.ConversationContext;
+import org.bukkit.conversations.ConversationFactory;
+import org.bukkit.plugin.Plugin;
+
+import com.comphenix.protocol.MultipleLinesPrompt.MultipleConversationCanceller;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.error.Report;
+import com.comphenix.protocol.error.ReportType;
+import com.comphenix.protocol.events.PacketEvent;
+import com.google.common.collect.Sets;
+
+/**
+ * A command to apply JavaScript filtering to the packet command.
+ * 
+ * @author Kristian
+ */
+public class CommandFilter extends CommandBase {
+	public static final ReportType REPORT_FALLBACK_ENGINE = new ReportType("Falling back to the Rhino engine.");
+	public static final ReportType REPORT_CANNOT_LOAD_FALLBACK_ENGINE = new ReportType("Could not load Rhino either. Please upgrade your JVM or OS.");
+	public static final ReportType REPORT_PACKAGES_UNSUPPORTED_IN_ENGINE = new ReportType("Unable to initialize packages for JavaScript engine.");
+	public static final ReportType REPORT_FILTER_REMOVED_FOR_ERROR = new ReportType("Removing filter %s for causing %s.");
+	public static final ReportType REPORT_CANNOT_HANDLE_CONVERSATION = new ReportType("Cannot handle conversation.");
+	
+	public interface FilterFailedHandler{
+		/**
+		 * Invoked when a given filter has failed.
+		 * @param event - the packet event.
+		 * @param filter - the filter that failed.
+		 * @param ex - the failure.
+		 * @return TRUE to keep processing this filter, FALSE to remove it.
+		 */
+		public boolean handle(PacketEvent event, Filter filter, Exception ex);
+	}
+	
+	/**
+	 * Possible sub commands.
+	 * 
+	 * @author Kristian
+	 */
+	private enum SubCommand {
+		ADD, REMOVE;
+	}
+	
+	/**
+	 * A filter that will be used to process a packet event.
+	 * @author Kristian
+	 */
+	public static class Filter {
+		private final String name;
+		private final String predicate;
+		
+		private final Set<PacketType> packets;
+		
+		/**
+		 * Construct a new immutable filter.
+		 * @param name - the unique name of the filter.
+ 		 * @param predicate - the JavaScript predicate that will be used to filter packet events.
+		 * @param packets - a list of packet types this filter applies to.
+		 */
+		public Filter(String name, String predicate, Set<PacketType> packets) {
+			this.name = name;
+			this.predicate = predicate;
+			this.packets = Sets.newHashSet(packets);
+		}
+		
+		/**
+		 * Retrieve the unique name of the filter.
+		 * @return Unique name of the filter.
+		 */
+		public String getName() {
+			return name;
+		}
+		
+		/**
+		 * Retrieve the JavaScript predicate that will be used to filter packet events.
+		 * @return Predicate itself.
+		 */
+		public String getPredicate() {
+			return predicate;
+		}
+		
+		/**
+		 * Retrieve a copy of the set of packets this filter applies to.
+		 * @return Set of packets this filter applies to.
+		 */
+		public Set<PacketType> getRanges() {
+			return Sets.newHashSet(packets);
+		}
+		
+		/**
+		 * Determine whether or not a packet event needs to be passed to this filter.
+		 * @param event - the event to test.
+		 * @return TRUE if it does, FALSE otherwise.
+		 */
+		private boolean isApplicable(PacketEvent event) {
+			return packets.contains(event.getPacketType());
+		}
+		
+		/**
+		 * Evaluate the current filter using the provided ScriptEngine as context.
+		 * <p>
+		 * This context may be modified with additional code.
+		 * @param context - the current script context.
+		 * @param event - the packet event to evaluate.
+		 * @return TRUE to pass this packet event on to the debug listeners, FALSE otherwise.
+		 * @throws ScriptException If the compilation failed or the filter is not valid.
+		 */
+		public boolean evaluate(ScriptEngine context, PacketEvent event) throws ScriptException {
+			if (!isApplicable(event))
+				return true;
+			// Ensure that the predicate has been compiled
+			compile(context);
+			
+			try {
+				Object result = ((Invocable) context).invokeFunction(name, event, event.getPacket().getHandle());
+				
+				if (result instanceof Boolean)
+					return (Boolean) result;
+				else
+					throw new ScriptException("Filter result wasn't a boolean: " + result);
+				
+			} catch (NoSuchMethodException e) {
+				// Must be a fault with the script engine itself
+				throw new IllegalStateException("Unable to compile " + name + " into current script engine.", e);
+			}
+		}
+		
+		/**
+		 * Force the compilation of a specific filter.
+		 * @param context - the current script context.
+		 * @throws ScriptException If the compilation failed.
+		 */
+		public void compile(ScriptEngine context) throws ScriptException {
+			if (context.get(name) == null) {
+				context.eval("var " + name + " = function(event, packet) {\n" + predicate);
+			}
+		}
+		
+		/**
+		 * Clean up all associated code from this filter in the provided script engine.
+		 * @param context - the current script context.
+		 */
+		public void close(ScriptEngine context) {
+			context.put(name, null);
+		}
+	}
+	
+	private class CompilationSuccessCanceller implements MultipleConversationCanceller {
+		@Override
+		public boolean cancelBasedOnInput(ConversationContext context, String in) {
+			throw new UnsupportedOperationException("Cannot cancel on the last line alone.");
+		}
+
+		@Override
+		public void setConversation(Conversation conversation) {
+			// Ignore
+		}
+
+		@Override
+		public boolean cancelBasedOnInput(ConversationContext context, String currentLine, StringBuilder lines, int lineCount) {
+			try {
+				engine.eval("function(event, packet) {\n" + lines.toString());
+				
+				// It compiles - accept the filter!
+				return true;
+			} catch (ScriptException e) {
+				// We also have the function() line
+				int realLineCount = lineCount + 1;
+				
+				// Only possible to recover from an error on the last line.
+				return e.getLineNumber() < realLineCount;
+			}
+		}
+		
+		@Override
+		public CompilationSuccessCanceller clone() {
+			return new CompilationSuccessCanceller();
+		}
+	}
+	
+	/**
+	 * Name of this command.
+	 */
+	public static final String NAME = "filter";
+	
+	// Default error handler
+	private FilterFailedHandler defaultFailedHandler;
+	
+	// Currently registered filters
+	private List<Filter> filters = new ArrayList<Filter>();
+	
+	// Owner plugin
+	private final Plugin plugin;
+	
+	// Whether or not the command is enabled
+	private ProtocolConfig config;
+	
+	// Script engine
+	private ScriptEngine engine;
+	private boolean uninitialized;
+	
+	public CommandFilter(ErrorReporter reporter, Plugin plugin, ProtocolConfig config) {
+		super(reporter, CommandBase.PERMISSION_ADMIN, NAME, 2);
+		this.plugin = plugin;
+		this.config = config;
+		
+		// Tell the filter system to initialize the script first chance it gets
+		this.uninitialized = true;
+	}
+	
+	private void initalizeScript() {
+		try {
+			// First attempt
+			initializeEngine();
+			
+			// Oh for ..
+			if (!isInitialized()) {
+				throw new ScriptException("A JavaScript engine could not be found.");
+			} else {
+				plugin.getLogger().info("Loaded command filter engine.");
+			}
+		} catch (ScriptException e1) {
+			// It's not a huge deal
+			printPackageWarning(e1);
+			
+			if (!config.getScriptEngineName().equals("rhino")) {
+				reporter.reportWarning(this, Report.newBuilder(REPORT_FALLBACK_ENGINE));
+				config.setScriptEngineName("rhino");
+				config.saveAll();
+				
+				try {
+					initializeEngine();
+					
+					if (!isInitialized()) {
+						reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_LOAD_FALLBACK_ENGINE));
+					}
+				} catch (ScriptException e2) {
+					// And again ..
+					printPackageWarning(e2);
+				}
+			}
+		}
+	}
+	
+	private void printPackageWarning(ScriptException e) {
+		reporter.reportWarning(this, Report.newBuilder(REPORT_PACKAGES_UNSUPPORTED_IN_ENGINE).error(e));
+	}
+	
+	/**
+	 * Initialize the current configured engine.
+	 * @throws ScriptException If we are unable to import packages.
+	 */
+	private void initializeEngine() throws ScriptException {
+		ScriptEngineManager manager = new ScriptEngineManager();
+		engine = manager.getEngineByName(config.getScriptEngineName());
+		
+		// Import useful packages
+		if (engine != null) {
+			engine.eval("importPackage(org.bukkit);");
+			engine.eval("importPackage(com.comphenix.protocol.reflect);");
+		}
+	}
+	
+	/**
+	 * Determine if the filter engine has been successfully initialized.
+	 * @return TRUE if it has, FALSE otherwise.
+	 */
+	public boolean isInitialized() {
+		return engine != null;
+	}
+
+	private FilterFailedHandler getDefaultErrorHandler() {
+		// No need to create a new object every time
+		if (defaultFailedHandler == null) {
+			defaultFailedHandler = new FilterFailedHandler() {
+				@Override
+				public boolean handle(PacketEvent event, Filter filter, Exception ex) {
+					reporter.reportMinimal(plugin, "filterEvent(PacketEvent)", ex, event);
+					reporter.reportWarning(this,
+							Report.newBuilder(REPORT_FILTER_REMOVED_FOR_ERROR).messageParam(filter.getName(), ex.getClass().getSimpleName())
+					);
+					return false;
+				}
+			};
+		}
+		return defaultFailedHandler;
+	}
+	
+	/**
+	 * Determine whether or not to pass the given packet event to the packet listeners.
+	 * <p>
+	 * Uses a default filter failure handler that simply prints the error message and removes the filter.
+	 * @param event - the event.
+	 * @return TRUE if we should, FALSE otherwise.
+	 */
+	public boolean filterEvent(PacketEvent event) {
+		return filterEvent(event, getDefaultErrorHandler());
+	}
+	
+	/**
+	 * Determine whether or not to pass the given packet event to the packet listeners.
+	 * @param event - the event.
+	 * @param handler - failure handler.
+	 * @return TRUE if we should, FALSE otherwise.
+	 */
+	public boolean filterEvent(PacketEvent event, FilterFailedHandler handler) {
+		for (Iterator<Filter> it = filters.iterator(); it.hasNext(); ) {
+			Filter filter = it.next();
+			
+			try {
+				if (!filter.evaluate(engine, event)) {
+					return false;
+				}
+			} catch (Exception ex) {
+				if (!handler.handle(event, filter, ex)) {
+					it.remove();
+				}
+			}
+		}
+		// Pass!
+		return true;
+	}
+
+	/**
+	 * Initialize the script engine if necessary.
+	 */
+	private void checkScriptStatus() {
+		// Start the engine
+		if (uninitialized) {
+			uninitialized = false;
+			initalizeScript();
+		}
+	}
+	
+	/*
+	 * Description: Adds or removes a simple packet filter.
+       Usage:       /<command> add|remove name [packet IDs]
+	 */
+	@Override
+	protected boolean handleCommand(CommandSender sender, String[] args) {
+		checkScriptStatus();
+		
+		if (!config.isDebug()) {
+			sender.sendMessage(ChatColor.RED + "Debug mode must be enabled in the configuration first!");
+			return true;
+		}
+		if (!isInitialized()) {
+			sender.sendMessage(ChatColor.RED + "JavaScript engine was not present. Filter system is disabled.");
+			return true;
+		}
+		
+		final SubCommand command = parseCommand(args, 0);
+		final String name = args[1];
+		
+		switch (command) {
+			case ADD:
+				// Never overwrite an existing filter
+				if (findFilter(name) != null) {
+					sender.sendMessage(ChatColor.RED + "Filter " + name + " already exists. Remove it first.");
+					return true;
+				}
+				
+				// Prepare the input to the packet type parser
+				Deque<String> rangeArguments = toQueue(args, 2);
+				
+				final PacketTypeParser parser = new PacketTypeParser();
+				final Set<PacketType> packets = parser.parseTypes(rangeArguments, PacketTypeParser.DEFAULT_MAX_RANGE);
+				sender.sendMessage("Enter filter program ('}' to complete or CANCEL):");
+				
+				// Make sure we can use the conversable interface
+				if (sender instanceof Conversable) {
+					final MultipleLinesPrompt prompt =
+							new MultipleLinesPrompt(new CompilationSuccessCanceller(), "function(event, packet) {");
+					
+					new ConversationFactory(plugin).
+						withFirstPrompt(prompt).
+						withEscapeSequence("CANCEL").
+						withLocalEcho(false).
+						addConversationAbandonedListener(new ConversationAbandonedListener() {
+							@Override
+							public void conversationAbandoned(ConversationAbandonedEvent event) {
+								try {
+									final Conversable whom = event.getContext().getForWhom();
+									
+									if (event.gracefulExit()) {
+										String predicate = prompt.removeAccumulatedInput(event.getContext());
+										Filter filter = new Filter(name, predicate, packets);
+	
+										// Print the last line as well
+										whom.sendRawMessage(prompt.getPromptText(event.getContext()));
+										
+										try {
+											// Force early compilation
+											filter.compile(engine);
+											
+											filters.add(filter);
+											whom.sendRawMessage(ChatColor.GOLD + "Added filter " + name);
+										} catch (ScriptException e) {
+											e.printStackTrace();
+											whom.sendRawMessage(ChatColor.GOLD + "Compilation error: " + e.getMessage());
+										}
+									} else {
+										// Too bad
+										whom.sendRawMessage(ChatColor.RED + "Cancelled filter.");
+									}
+								} catch (Exception e) {
+									reporter.reportDetailed(this,
+											Report.newBuilder(REPORT_CANNOT_HANDLE_CONVERSATION).error(e).callerParam(event)
+									);
+								}
+							}
+						}).
+						buildConversation((Conversable) sender).
+						begin();
+				} else {
+					sender.sendMessage(ChatColor.RED + "Only console and players are supported!");
+				}
+				
+				break;
+				
+			case REMOVE:
+				Filter filter = findFilter(name);
+				
+				// See if it exists before we remove it
+				if (filter != null) {
+					filter.close(engine);
+					filters.remove(filter);
+					sender.sendMessage(ChatColor.GOLD + "Removed filter " + name);
+				} else {
+					sender.sendMessage(ChatColor.RED + "Unable to find a filter by the name " + name);
+				}
+				break;
+		}
+		
+		return true;
+	}
+	
+	/**
+	 * Lookup a filter by its name.
+	 * @param name - the filter name.
+	 * @return The filter, or NULL if not found.
+	 */
+	private Filter findFilter(String name) {
+		// We'll just use a linear scan for now - we don't expect that many filters
+		for (Filter filter : filters) {
+			if (filter.getName().equalsIgnoreCase(name)) {
+				return filter;
+			}
+		}
+		return null;
+	}
+	
+	private SubCommand parseCommand(String[] args, int index) {
+		String text = args[index].toUpperCase();
+		
+		try {
+			return SubCommand.valueOf(text);
+		} catch (IllegalArgumentException e) {
+			throw new IllegalArgumentException(text + " is not a valid sub command. Must be add or remove.", e);
+		}
+	}
+}

src/main/java/com/comphenix/protocol/CommandPacket.java

@@ -0,0 +1,547 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayDeque;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Deque;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.WeakHashMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import net.sf.cglib.proxy.Factory;
+
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+
+import com.comphenix.protocol.PacketType.Sender;
+import com.comphenix.protocol.concurrency.PacketTypeSet;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.error.Report;
+import com.comphenix.protocol.error.ReportType;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.events.PacketListener;
+import com.comphenix.protocol.reflect.EquivalentConverter;
+import com.comphenix.protocol.reflect.PrettyPrinter;
+import com.comphenix.protocol.reflect.PrettyPrinter.ObjectPrinter;
+import com.comphenix.protocol.utility.ChatExtensions;
+import com.comphenix.protocol.utility.HexDumper;
+import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.wrappers.BukkitConverters;
+import com.google.common.collect.MapMaker;
+import com.google.common.collect.Sets;
+
+/**
+ * Handles the "packet" debug command.
+ * 
+ * @author Kristian
+ */
+class CommandPacket extends CommandBase {
+	public static final ReportType REPORT_CANNOT_SEND_MESSAGE = new ReportType("Cannot send chat message.");
+
+	private enum SubCommand {
+		ADD, REMOVE, NAMES, PAGE;
+	}
+	
+	/**
+	 * Name of this command.
+	 */
+	public static final String NAME = "packet";
+
+	/**
+	 * Number of lines per page.
+	 */
+	public static final int PAGE_LINE_COUNT = 9;
+	
+	/**
+	 * Number of bytes before we do a hex dump.
+	 */
+	private static final int HEX_DUMP_THRESHOLD = 256;
+	
+	private Plugin plugin;
+	private Logger logger;
+	private ProtocolManager manager;
+		
+	private ChatExtensions chatter;
+	
+	// The main parser
+	private PacketTypeParser typeParser = new PacketTypeParser();
+	
+	// Paged message
+	private Map<CommandSender, List<String>> pagedMessage = new WeakHashMap<CommandSender, List<String>>();
+	
+	// Current registered packet types
+	private PacketTypeSet packetTypes = new PacketTypeSet();
+	private PacketTypeSet extendedTypes = new PacketTypeSet();
+	
+	// Compare listeners
+	private PacketTypeSet compareTypes = new PacketTypeSet();
+	private Map<PacketEvent, String> originalPackets = new MapMaker().weakKeys().makeMap();
+	
+	// The packet listener
+	private PacketListener listener;
+	
+	// Compare listener
+	private PacketListener compareListener;
+	
+	// Filter packet events
+	private CommandFilter filter;
+	
+	public CommandPacket(ErrorReporter reporter, Plugin plugin, Logger logger, CommandFilter filter, ProtocolManager manager) {
+		super(reporter, CommandBase.PERMISSION_ADMIN, NAME, 1);
+		this.plugin = plugin;
+		this.logger = logger;
+		this.manager = manager;
+		this.filter = filter;
+		this.chatter = new ChatExtensions(manager);
+	}
+
+	/**
+	 * Send a message without invoking the packet listeners.
+	 * @param receiver - the player to send it to.
+	 * @param message - the message to send.
+	 * @return TRUE if the message was sent successfully, FALSE otherwise.
+	 */
+	public void sendMessageSilently(CommandSender receiver, String message) {
+		try {
+			chatter.sendMessageSilently(receiver, message);
+		} catch (InvocationTargetException e) {
+			reporter.reportDetailed(this, 
+					Report.newBuilder(REPORT_CANNOT_SEND_MESSAGE).error(e).callerParam(receiver, message)
+			);
+		}
+	}
+	
+	/**
+	 * Broadcast a message without invoking any packet listeners.
+	 * @param message - message to send.
+	 * @param permission - permission required to receieve the message. NULL to target everyone.
+	 */
+	public void broadcastMessageSilently(String message, String permission) {
+		try {
+			chatter.broadcastMessageSilently(message, permission);
+		} catch (InvocationTargetException e) {
+			reporter.reportDetailed(this, 
+					Report.newBuilder(REPORT_CANNOT_SEND_MESSAGE).error(e).callerParam(message, permission)
+			);
+		}
+	}
+	
+	private void printPage(CommandSender sender, int pageIndex) {
+		List<String> paged = pagedMessage.get(sender);
+		
+		// Make sure the player has any pages
+		if (paged != null) {
+			int lastPage = ((paged.size() - 1) / PAGE_LINE_COUNT) + 1;
+			
+			for (int i = PAGE_LINE_COUNT * (pageIndex - 1); i < PAGE_LINE_COUNT * pageIndex; i++) {
+				if (i < paged.size()) {
+					sendMessageSilently(sender, " " + paged.get(i));
+				}
+			}
+			
+			// More data?
+			if (pageIndex < lastPage) {
+				sendMessageSilently(sender, "Send /packet page " + (pageIndex + 1) + " for the next page.");
+			}
+			
+		} else {
+			sendMessageSilently(sender, ChatColor.RED + "No pages found.");
+		}
+	}
+	
+	/*
+	 * Description: Adds or removes a simple packet listener.
+       Usage:       /<command> add|remove client|server|both [ID start] [ID stop] [detailed] 
+	 */
+	@Override
+	protected boolean handleCommand(CommandSender sender, String[] args) {
+		try {
+			Deque<String> arguments = new ArrayDeque<String>(Arrays.asList(args));
+			SubCommand subCommand = parseCommand(arguments);
+
+			// Commands with different parameters
+			if (subCommand == SubCommand.PAGE) {
+				if (args.length <= 1) {
+					sendMessageSilently(sender, ChatColor.RED + "Must specify a page index.");
+					return true;
+				}
+				
+				int page = Integer.parseInt(args[1]);
+				
+				if (page > 0)
+					printPage(sender, page);
+				else
+					sendMessageSilently(sender, ChatColor.RED + "Page index must be greater than zero.");
+				return true;
+			}
+			
+			Set<PacketType> types = typeParser.parseTypes(arguments, PacketTypeParser.DEFAULT_MAX_RANGE);
+			Boolean detailed = parseBoolean(arguments, "detailed");
+			Boolean compare = parseBoolean(arguments, "compare");
+			
+			// Notify user
+			if (typeParser.getLastProtocol() == null) {
+				sender.sendMessage(ChatColor.YELLOW + "Warning: Missing protocol (PLAY, etc) - assuming legacy IDs.");
+			}
+			if (arguments.size() > 0) {
+				throw new IllegalArgumentException("Cannot parse " + arguments);
+			}
+		
+			// The last elements are optional
+			if (detailed == null) {
+				detailed = false;
+			}
+			if (compare == null) {
+				compare = false;
+			} else {
+				// This is implied - we cannot compare content without going detailed
+				detailed = true;
+			}
+
+			// Perform commands
+			if (subCommand == SubCommand.ADD) {
+				// The add command is dangerous - don't default on the connection side
+				if (args.length == 1) {
+					sender.sendMessage(ChatColor.RED + "Please specify a connection side.");
+					return false;
+				}
+				
+				executeAddCommand(sender, types, detailed, compare);
+			} else if (subCommand == SubCommand.REMOVE) {
+				executeRemoveCommand(sender, types);
+			} else if (subCommand == SubCommand.NAMES) {
+				executeNamesCommand(sender, types);
+			}
+			
+		} catch (NumberFormatException e) {
+			sendMessageSilently(sender, ChatColor.RED + "Cannot parse number: " + e.getMessage());
+		} catch (IllegalArgumentException e) {
+			sendMessageSilently(sender, ChatColor.RED + e.getMessage());
+		}
+		
+		return true;
+	}
+	
+	private void executeAddCommand(CommandSender sender, Set<PacketType> addition, boolean detailed, boolean compare) {
+		packetTypes.addAll(addition);
+		
+		// Also mark these types as "detailed"
+		if (detailed) {
+			extendedTypes.addAll(addition);
+		}
+		// Whether or not to compare the packet with the initial state
+		if (compare) {
+			compareTypes.addAll(addition);
+		}
+		
+		updatePacketListener();
+		sendMessageSilently(sender, ChatColor.YELLOW + "Added listener " + getWhitelistInfo(listener));
+	}
+	
+	private void executeRemoveCommand(CommandSender sender, Set<PacketType> removal) {
+		packetTypes.removeAll(removal);
+		extendedTypes.removeAll(removal);
+		compareTypes.removeAll(removal);
+		updatePacketListener();
+		sendMessageSilently(sender, ChatColor.YELLOW + "Removing packet types.");
+	}
+	
+	private void executeNamesCommand(CommandSender sender, Set<PacketType> types) {
+		List<String> messages = new ArrayList<String>();
+		
+		// Print the equivalent name of every given ID
+		for (PacketType type : types) {
+			messages.add(ChatColor.YELLOW + type.toString());
+		}
+		
+		if (sender instanceof Player && messages.size() > 0 && messages.size() > PAGE_LINE_COUNT) {
+			// Divide the messages into chuncks
+			pagedMessage.put(sender, messages);
+			printPage(sender, 1);
+			
+		} else {
+			// Just print the damn thing
+			for (String message : messages) {
+				sendMessageSilently(sender, message);
+			}
+		}
+	}
+
+	/**
+	 * Retrieve whitelist information about a given listener.
+	 * @param listener - the given listener.
+	 * @return Whitelist information.
+	 */
+	private String getWhitelistInfo(PacketListener listener) {
+		boolean sendingEmpty = ListeningWhitelist.isEmpty(listener.getSendingWhitelist());
+		boolean receivingEmpty = ListeningWhitelist.isEmpty(listener.getReceivingWhitelist());
+		
+		if (!sendingEmpty && !receivingEmpty)
+			return String.format("Sending: %s, Receiving: %s", listener.getSendingWhitelist(), listener.getReceivingWhitelist());
+		else if (!sendingEmpty)
+			return listener.getSendingWhitelist().toString();
+		else if (!receivingEmpty)
+			return listener.getReceivingWhitelist().toString();
+		else
+			return "[None]";
+	}
+		
+	private Set<PacketType> filterTypes(Set<PacketType> types, Sender sender) {
+		Set<PacketType> result = Sets.newHashSet();
+		
+		for (PacketType type : types) {
+			if (type.getSender() == sender) {
+				result.add(type);
+			}
+		}
+		return result;
+	}
+	
+	public PacketListener createPacketListener(Set<PacketType> type) {
+		final ListeningWhitelist serverList = ListeningWhitelist.newBuilder().
+				types(filterTypes(type, Sender.SERVER)).
+				gamePhaseBoth().
+				monitor().
+				build();
+		
+		final ListeningWhitelist clientList = ListeningWhitelist.newBuilder(serverList).
+				types(filterTypes(type, Sender.CLIENT)).
+				monitor().
+				build();
+		
+		return new PacketListener() {
+			@Override
+			public void onPacketSending(PacketEvent event) {
+				if (filter.filterEvent(event)) {
+					printInformation(event);
+				}
+			}
+			
+			@Override
+			public void onPacketReceiving(PacketEvent event) {
+				if (filter.filterEvent(event)) {
+					printInformation(event);
+				}
+			}
+			
+			private void printInformation(PacketEvent event) {
+				String verb = event.isServerPacket() ? "Sent" : "Received";
+				String format = event.isServerPacket() ? 
+						"%s %s to %s" : 
+						"%s %s from %s";
+				
+				String shortDescription = String.format(format,
+						event.isCancelled() ? "Cancelled" : verb,
+						event.getPacketType(),
+						event.getPlayer().getName()
+				);
+				
+				// Detailed will print the packet's content too
+				if (extendedTypes.contains(event.getPacketType())) {
+					try {
+						String original = originalPackets.remove(event);
+						
+						// Also print original
+						if (original != null) {
+							logger.info("Initial packet:\n" + original + " -> ");
+						}
+						
+						logger.info(shortDescription + ":\n" + getPacketDescription(
+							event.getPacket())
+						);
+					} catch (IllegalAccessException e) {
+						logger.log(Level.WARNING, "Unable to use reflection.", e);
+					}
+				} else {
+					logger.info(shortDescription + ".");
+				}
+			}
+			
+			@Override
+			public ListeningWhitelist getSendingWhitelist() {
+				return serverList;
+			}
+			
+			@Override
+			public ListeningWhitelist getReceivingWhitelist() {
+				return clientList;
+			}
+			
+			@Override
+			public Plugin getPlugin() {
+				return plugin;
+			}
+		};
+	}
+	
+	public PacketListener createCompareListener(Set<PacketType> type) {
+		final ListeningWhitelist serverList = ListeningWhitelist.newBuilder().
+				types(filterTypes(type, Sender.SERVER)).
+				gamePhaseBoth().
+				lowest().
+				build();
+		
+		final ListeningWhitelist clientList = ListeningWhitelist.newBuilder(serverList).
+				types(filterTypes(type, Sender.CLIENT)).
+				lowest().
+				build();
+		
+		return new PacketListener() {
+			@Override
+			public void onPacketSending(PacketEvent event) {
+				savePacketState(event);
+			}
+			
+			@Override
+			public void onPacketReceiving(PacketEvent event) {
+				savePacketState(event);
+			}
+			
+			/**
+			 * Save the original value.
+			 * @param event - the event with the packet to save.
+			 */
+			private void savePacketState(PacketEvent event) {
+				try {
+					originalPackets.put(event, getPacketDescription(event.getPacket()));
+				} catch (IllegalAccessException e) {
+					throw new RuntimeException("Cannot read packet.", e);
+				}
+			}
+			
+			@Override
+			public ListeningWhitelist getSendingWhitelist() {
+				return serverList;
+			}
+			
+			@Override
+			public ListeningWhitelist getReceivingWhitelist() {
+				return clientList;
+			}
+			
+			@Override
+			public Plugin getPlugin() {
+				return plugin;
+			}
+		};
+	}
+	
+	/**
+	 * Retrieve a detailed string representation of the given packet.
+	 * @param packetContainer - the packet to describe. 
+	 * @return The detailed description.
+	 * @throws IllegalAccessException An error occured.
+	 */
+	public String getPacketDescription(PacketContainer packetContainer) throws IllegalAccessException {
+		Object packet = packetContainer.getHandle();
+		Class<?> clazz = packet.getClass();
+		
+		// Get the first Minecraft super class
+		while (clazz != null && clazz != Object.class &&
+				(!MinecraftReflection.isMinecraftClass(clazz) || 
+				 Factory.class.isAssignableFrom(clazz))) {
+			clazz = clazz.getSuperclass();
+		}
+		
+		return PrettyPrinter.printObject(packet, clazz, MinecraftReflection.getPacketClass(), PrettyPrinter.RECURSE_DEPTH, new ObjectPrinter() {
+			@Override
+			public boolean print(StringBuilder output, Object value) {
+				// Special case
+				if (value instanceof byte[]) {
+					byte[] data = (byte[]) value;
+					
+					if (data.length > HEX_DUMP_THRESHOLD) {
+						output.append("[");
+						HexDumper.defaultDumper().appendTo(output, data);
+						output.append("]");
+						return true;
+					}
+				} else if (value != null) {
+					EquivalentConverter<Object> converter = findConverter(value.getClass());
+
+					if (converter != null) {
+						output.append(converter.getSpecific(value));
+						return true;
+					}
+				}
+				return false;
+			}
+		});
+	}
+	
+	/**
+	 * Retrieve the closest equivalent converter to a specific class.
+	 * @param clazz - the class.
+	 * @return The closest converter, or NULL if not found,
+	 */
+	private EquivalentConverter<Object> findConverter(Class<?> clazz) {
+		Map<Class<?>, EquivalentConverter<Object>> converters = BukkitConverters.getConvertersForGeneric();
+		
+		while (clazz != null) {
+			EquivalentConverter<Object> result = converters.get(clazz);
+			
+			if (result != null)
+				return result;
+			else
+				clazz = clazz.getSuperclass();
+		}
+		return null;
+	}
+		
+	public PacketListener updatePacketListener() {
+		if (listener != null) {
+			manager.removePacketListener(listener);
+		}
+		if (compareListener != null) {
+			manager.removePacketListener(compareListener);
+		}
+		
+		// Register the new listeners 
+		listener = createPacketListener(packetTypes.values());
+		compareListener = createCompareListener(compareTypes.values());
+		manager.addPacketListener(listener);
+		manager.addPacketListener(compareListener);
+		return listener;
+	}
+	
+	private SubCommand parseCommand(Deque<String> arguments) {
+		String text = arguments.poll().toLowerCase();
+		
+		// Parse this too
+		if ("add".startsWith(text))
+			return SubCommand.ADD;
+		else if ("remove".startsWith(text))
+			return SubCommand.REMOVE;
+		else if ("names".startsWith(text)) 
+			return SubCommand.NAMES;
+		else if ("page".startsWith(text)) 
+			return SubCommand.PAGE;
+		else
+			throw new IllegalArgumentException(text + " is not a valid sub command. Must be add or remove.");
+	}
+}

src/main/java/com/comphenix/protocol/CommandProtocol.java

@@ -0,0 +1,292 @@
+/**
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+package com.comphenix.protocol;
+
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.text.SimpleDateFormat;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+import java.util.logging.Level;
+
+import org.bukkit.ChatColor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.PluginDescriptionFile;
+
+import com.comphenix.protocol.error.DetailedErrorReporter;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.events.PacketListener;
+import com.comphenix.protocol.timing.TimedListenerManager;
+import com.comphenix.protocol.timing.TimingReportGenerator;
+import com.comphenix.protocol.updater.Updater;
+import com.comphenix.protocol.updater.Updater.UpdateType;
+import com.comphenix.protocol.utility.Closer;
+
+/**
+ * Handles the "protocol" administration command.
+ *
+ * @author Kristian
+ */
+class CommandProtocol extends CommandBase {
+	/**
+	 * Name of this command.
+	 */
+	public static final String NAME = "protocol";
+	
+	private Plugin plugin;
+	private Updater updater;
+	private ProtocolConfig config;
+
+	public CommandProtocol(ErrorReporter reporter, Plugin plugin, Updater updater, ProtocolConfig config) {
+		super(reporter, CommandBase.PERMISSION_ADMIN, NAME, 1);
+		this.plugin = plugin;
+		this.updater = updater;
+		this.config = config;
+	}
+	
+	@Override
+	protected boolean handleCommand(CommandSender sender, String[] args) {
+		String subCommand = args[0];
+
+		// Only return TRUE if we executed the correct command
+		if (subCommand.equalsIgnoreCase("config") || subCommand.equalsIgnoreCase("reload")) {
+			reloadConfiguration(sender);
+		} else if (subCommand.equalsIgnoreCase("check")) {
+			checkVersion(sender, true);
+		} else if (subCommand.equalsIgnoreCase("update")) {
+			updateVersion(sender, true);
+		} else if (subCommand.equalsIgnoreCase("timings")) {
+			toggleTimings(sender, args);
+		} else if (subCommand.equalsIgnoreCase("listeners")) {
+			printListeners(sender);
+		} else if (subCommand.equalsIgnoreCase("version")) {
+			printVersion(sender);
+		} else if (subCommand.equalsIgnoreCase("dump")) {
+			dump(sender);
+		} else {
+			return false;
+		}
+
+		return true;
+	}
+	
+	public void checkVersion(final CommandSender sender, boolean command) {
+		performUpdate(sender, UpdateType.NO_DOWNLOAD, command);
+	}
+	
+	public void updateVersion(final CommandSender sender, boolean command) {
+		performUpdate(sender, UpdateType.DEFAULT, command);
+	}
+	
+	// Display every listener on the server
+	private void printListeners(final CommandSender sender) {
+		ProtocolManager manager = ProtocolLibrary.getProtocolManager();
+		
+		sender.sendMessage(ChatColor.GOLD + "Packet listeners:");
+		for (PacketListener listener : manager.getPacketListeners()) {
+			sender.sendMessage(ChatColor.GOLD + " - " + listener);
+		}
+
+		// Along with every asynchronous listener
+		sender.sendMessage(ChatColor.GOLD + "Asynchronous listeners:");
+		for (PacketListener listener : manager.getAsynchronousManager().getAsyncHandlers()) {
+			sender.sendMessage(ChatColor.GOLD + " - " + listener);
+		}
+	}
+	
+	private void performUpdate(final CommandSender sender, UpdateType type, final boolean command) {
+		if (updater.isChecking()) {
+			sender.sendMessage(ChatColor.RED + "Already checking for an update.");
+			return;
+		}
+
+		// Perform on an async thread
+		Runnable notify = new Runnable() {
+			@Override
+			public void run() {
+				if (command) {
+					sender.sendMessage(ChatColor.YELLOW + "[ProtocolLib] " + updater.getResult());
+					String remoteVersion = updater.getRemoteVersion();
+					if (remoteVersion != null) {
+						sender.sendMessage(ChatColor.YELLOW + "Remote version: " + remoteVersion);
+						sender.sendMessage(ChatColor.YELLOW + "Current version: " + plugin.getDescription().getVersion());
+					}
+				} else if (updater.shouldNotify() || config.isDebug()) {
+					sender.sendMessage(ChatColor.YELLOW + "[ProtocolLib] " + updater.getResult());
+				}
+
+				updater.removeListener(this);
+				updateFinished();
+			}
+		};
+		updater.start(type);
+		updater.addListener(notify);
+	}
+	
+	private void toggleTimings(CommandSender sender, String[] args) {
+		TimedListenerManager manager = TimedListenerManager.getInstance();
+		boolean state = !manager.isTiming(); // toggle
+		
+		// Parse the boolean parameter
+		if (args.length == 2) {
+			Boolean parsed = parseBoolean(toQueue(args, 2), "start");
+			
+			if (parsed != null) {
+				state = parsed;
+			} else {
+				sender.sendMessage(ChatColor.RED + "Specify a state: ON or OFF.");
+				return;
+			}
+		} else if (args.length > 2) {
+			sender.sendMessage(ChatColor.RED + "Too many parameters.");
+			return;
+		}
+		
+		// Now change the state
+		if (state) {
+			if (manager.startTiming())
+				sender.sendMessage(ChatColor.GOLD + "Started timing packet listeners.");
+			else
+				sender.sendMessage(ChatColor.RED + "Packet timing already started.");
+		} else {
+			if (manager.stopTiming()) {
+				saveTimings(manager);
+				sender.sendMessage(ChatColor.GOLD + "Stopped and saved result in plugin folder.");
+			} else {
+				sender.sendMessage(ChatColor.RED + "Packet timing already stopped.");
+			}
+ 		}
+	}
+	
+	private void saveTimings(TimedListenerManager manager) {
+		try {
+			File destination = new File(plugin.getDataFolder(), "Timings - " + System.currentTimeMillis() + ".txt");
+			TimingReportGenerator generator = new TimingReportGenerator();
+			
+			// Print to a text file
+			generator.saveTo(destination, manager);
+			manager.clear();
+			
+		} catch (IOException e) {
+			reporter.reportMinimal(plugin, "saveTimings()", e);
+		}
+	}
+	
+	/**
+	 * Prevent further automatic updates until the next delay.
+	 */
+	public void updateFinished() {
+		long currentTime = TimeUnit.MILLISECONDS.toSeconds(System.currentTimeMillis());
+
+		config.setAutoLastTime(currentTime);
+		config.saveAll();
+	}
+	
+	public void reloadConfiguration(CommandSender sender) {
+		plugin.reloadConfig();
+		sender.sendMessage(ChatColor.YELLOW + "Reloaded configuration!");
+	}
+
+	private void printVersion(CommandSender sender) {
+		PluginDescriptionFile desc = plugin.getDescription();
+
+		sender.sendMessage(ChatColor.GREEN + desc.getName() + ChatColor.WHITE + " v" + ChatColor.GREEN + desc.getVersion());
+		sender.sendMessage(ChatColor.WHITE + "Authors: " + ChatColor.GREEN + "dmulloy2" + ChatColor.WHITE + " and " + ChatColor.GREEN + "Comphenix");
+		sender.sendMessage(ChatColor.WHITE + "Issues: " + ChatColor.GREEN + "https://github.com/dmulloy2/ProtocolLib/issues");
+	}
+
+	private static SimpleDateFormat FILE_FORMAT;
+	private static SimpleDateFormat TIMESTAMP_FORMAT;
+
+	private void dump(CommandSender sender) {
+		Closer closer = Closer.create();
+
+		if (FILE_FORMAT == null)
+			FILE_FORMAT = new SimpleDateFormat("yyyy-MM-dd_HH.mm.ss");
+		if (TIMESTAMP_FORMAT == null)
+			TIMESTAMP_FORMAT = new SimpleDateFormat("MM/dd/yy HH:mm:ss");
+
+		try {
+			Date date = new Date();
+			File file = new File(plugin.getDataFolder(), "dump-" + FILE_FORMAT.format(date) + ".txt");
+			if (file.exists()) {
+				file.delete();
+			}
+
+			file.createNewFile();
+			
+			FileWriter fw = closer.register(new FileWriter(file));
+			PrintWriter pw = closer.register(new PrintWriter(fw));
+
+			pw.println("ProtocolLib Dump");
+			pw.println("Timestamp: " + TIMESTAMP_FORMAT.format(date));
+			pw.println();
+
+			pw.println("ProtocolLib Version: " + plugin.toString());
+			pw.println("Bukkit Version: " + plugin.getServer().getBukkitVersion());
+			pw.println("Server Version: " + plugin.getServer().getVersion());
+			pw.println("Java Version: " + System.getProperty("java.version"));
+			pw.println();
+
+			ProtocolManager manager = ProtocolLibrary.getProtocolManager();
+			pw.println("ProtocolLib: " + DetailedErrorReporter.getStringDescription(plugin));
+			pw.println("Manager: " + DetailedErrorReporter.getStringDescription(manager));
+			pw.println();
+
+			Set<PacketListener> listeners = manager.getPacketListeners();
+			Set<Plugin> plugins = new HashSet<>();
+
+			if (!listeners.isEmpty()) {
+				pw.println("Listeners:");
+
+				for (PacketListener listener : listeners) {
+					pw.println(DetailedErrorReporter.getStringDescription(listener));
+
+					Plugin plugin = listener.getPlugin();
+					if (plugin != null) {
+						plugins.add(plugin);
+					} else {
+						pw.println("(Missing plugin!)");
+					}
+				}
+
+				pw.println();
+			} else {
+				pw.println("No listeners");
+			}
+
+			if (!plugins.isEmpty()) {
+				pw.println("Plugins Using ProtocolLib:");
+				for (Plugin plugin : plugins) {
+					pw.println(plugin.getName() + " by " + plugin.getDescription().getAuthors());
+				}
+			}
+
+			sender.sendMessage("Data dump written to " + file.getAbsolutePath());
+		} catch (IOException ex) {
+			ProtocolLogger.log(Level.SEVERE, "Failed to create dump:", ex);
+			sender.sendMessage(ChatColor.RED + "Failed to create dump! Check console!");
+		} finally {
+			closer.close();
+		}
+	}
+}

src/main/java/com/comphenix/protocol/MultipleLinesPrompt.java

@@ -0,0 +1,163 @@
+package com.comphenix.protocol;
+
+import org.bukkit.conversations.Conversation;
+import org.bukkit.conversations.ConversationCanceller;
+import org.bukkit.conversations.ConversationContext;
+import org.bukkit.conversations.ExactMatchConversationCanceller;
+import org.bukkit.conversations.Prompt;
+import org.bukkit.conversations.StringPrompt;
+
+/**
+ * Represents a conversation prompt that accepts a list of lines.
+ * 
+ * @author Kristian
+ */
+class MultipleLinesPrompt extends StringPrompt {
+	/**
+	 * Represents a canceller that determines if the multiple lines prompt is finished.
+	 * @author Kristian
+	 */
+	public static interface MultipleConversationCanceller extends ConversationCanceller {
+		@Override
+		public boolean cancelBasedOnInput(ConversationContext context, String currentLine);
+
+		/**
+		 * Determine if the current prompt is done based on the context, last
+		 * line and collected lines.
+		 * 
+		 * @param context - current context.
+		 * @param currentLine - current (last) line.
+		 * @param lines - collected lines.
+		 * @param lineCount - number of lines.
+		 * @return TRUE if we are done, FALSE otherwise.
+		 */
+		public boolean cancelBasedOnInput(ConversationContext context, String currentLine, 
+										  StringBuilder lines, int lineCount);
+	}
+
+	/**
+	 * A wrapper class for turning a ConversationCanceller into a MultipleConversationCanceller.
+	 * @author Kristian
+	 */
+	private static class MultipleWrapper implements MultipleConversationCanceller {
+		private ConversationCanceller canceller;
+
+		public MultipleWrapper(ConversationCanceller canceller) {
+			this.canceller = canceller;
+		}
+		
+		@Override
+		public boolean cancelBasedOnInput(ConversationContext context, String currentLine) {
+			return canceller.cancelBasedOnInput(context, currentLine);
+		}
+		
+		@Override
+		public boolean cancelBasedOnInput(ConversationContext context, String currentLine, 
+										  StringBuilder lines, int lineCount) {
+			return cancelBasedOnInput(context, currentLine);
+		}
+
+		@Override
+		public void setConversation(Conversation conversation) {
+			canceller.setConversation(conversation);
+		}
+		
+		@Override
+		public MultipleWrapper clone() {
+			return new MultipleWrapper(canceller.clone());
+		}
+	}
+
+	// Feels a bit like Android
+	private static final String KEY = "multiple_lines_prompt";
+	private static final String KEY_LAST = KEY + ".last_line";
+	private static final String KEY_LINES = KEY + ".linecount";
+
+	private final MultipleConversationCanceller endMarker;
+	private final String initialPrompt;
+
+	/**
+	 * Retrieve and remove the current accumulated input.
+	 * 
+	 * @param context
+	 *            - conversation context.
+	 * @return The accumulated input, or NULL if not found.
+	 */
+	public String removeAccumulatedInput(ConversationContext context) {
+		Object result = context.getSessionData(KEY);
+
+		if (result instanceof StringBuilder) {
+			context.setSessionData(KEY, null);
+			context.setSessionData(KEY_LINES, null);
+			return ((StringBuilder) result).toString();
+		} else {
+			return null;
+		}
+	}
+
+	/**
+	 * Construct a multiple lines input prompt with a specific end marker.
+	 * <p>
+	 * This is usually an empty string.
+	 * 
+	 * @param endMarker - the end marker.
+	 */
+	public MultipleLinesPrompt(String endMarker, String initialPrompt) {
+		this(new ExactMatchConversationCanceller(endMarker), initialPrompt);
+	}
+
+	/**
+	 * Construct a multiple lines input prompt with a specific end marker implementation.
+	 * <p>
+	 * Note: Use {@link #MultipleLinesPrompt(MultipleConversationCanceller, String)} if implementing a custom canceller.
+	 * @param endMarker - the end marker.
+	 * @param initialPrompt - the initial prompt text.
+	 */
+	public MultipleLinesPrompt(ConversationCanceller endMarker, String initialPrompt) {
+		this.endMarker = new MultipleWrapper(endMarker);
+		this.initialPrompt = initialPrompt;
+	}
+	
+	/**
+	 * Construct a multiple lines input prompt with a specific end marker implementation.
+	 * @param endMarker - the end marker.
+	 * @param initialPrompt - the initial prompt text.
+	 */
+	public MultipleLinesPrompt(MultipleConversationCanceller endMarker, String initialPrompt) {
+		this.endMarker = endMarker;
+		this.initialPrompt = initialPrompt;
+	}
+
+	@Override
+	public Prompt acceptInput(ConversationContext context, String in) {
+		StringBuilder result = (StringBuilder) context.getSessionData(KEY);
+		Integer count = (Integer) context.getSessionData(KEY_LINES);
+		
+		// Handle first run
+		if (result == null) 
+			context.setSessionData(KEY, result = new StringBuilder());
+		if (count == null)
+			count = 0;
+		
+		// Save the last line as well
+		context.setSessionData(KEY_LAST, in);
+		context.setSessionData(KEY_LINES, ++count);
+		result.append(in + "\n");
+
+		// And we're done
+		if (endMarker.cancelBasedOnInput(context, in, result, count))
+			return Prompt.END_OF_CONVERSATION;
+		else
+			return this;
+	}
+
+	@Override
+	public String getPromptText(ConversationContext context) {
+		Object last = context.getSessionData(KEY_LAST);
+
+		if (last instanceof String)
+			return (String) last;
+		else
+			return initialPrompt;
+	}
+}

src/main/java/com/comphenix/protocol/PacketLogging.java

@@ -0,0 +1,268 @@
+/**
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2017 Dan Mulloy
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+package com.comphenix.protocol;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.text.MessageFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.*;
+
+import com.comphenix.protocol.PacketType.Protocol;
+import com.comphenix.protocol.PacketType.Sender;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.events.PacketListener;
+import com.comphenix.protocol.injector.netty.WirePacket;
+import com.google.common.base.Charsets;
+
+import org.bukkit.ChatColor;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.craftbukkit.libs.org.apache.commons.io.HexDump;
+import org.bukkit.plugin.Plugin;
+
+/**
+ * Logs packets to a given stream
+ * @author dmulloy2
+ */
+public class PacketLogging implements CommandExecutor, PacketListener {
+	public static final String NAME = "packetlog";
+
+	private List<PacketType> sendingTypes = new ArrayList<>();
+	private List<PacketType> receivingTypes = new ArrayList<>();
+
+	private ListeningWhitelist sendingWhitelist;
+	private ListeningWhitelist receivingWhitelist;
+
+	private Logger fileLogger;
+	private LogLocation location = LogLocation.FILE;
+
+	private final ProtocolManager manager;
+	private final Plugin plugin;
+
+	PacketLogging(Plugin plugin, ProtocolManager manager) {
+		this.plugin = plugin;
+		this.manager = manager;
+	}
+
+	@Override
+	public boolean onCommand(CommandSender sender, Command command, String label, String[] args) {
+		PacketType type = null;
+
+		try {
+			if (args.length > 2) {
+				Protocol protocol;
+
+				try {
+					protocol = Protocol.valueOf(args[0].toUpperCase());
+				} catch (IllegalArgumentException ex) {
+					sender.sendMessage(ChatColor.RED + "Unknown protocol " + args[0]);
+					return true;
+				}
+
+				Sender pSender;
+
+				try {
+					pSender = Sender.valueOf(args[1].toUpperCase());
+				} catch (IllegalArgumentException ex) {
+					sender.sendMessage(ChatColor.RED + "Unknown sender: " + args[1]);
+					return true;
+				}
+
+				try {
+					try { // Try IDs first
+						int id = Integer.parseInt(args[2]);
+						type = PacketType.findCurrent(protocol, pSender, id);
+					} catch (NumberFormatException ex) { // Check packet names
+						String name = args[2];
+						for (PacketType packet : PacketType.values()) {
+							if (packet.getProtocol() == protocol && packet.getSender() == pSender) {
+								if (packet.name().equalsIgnoreCase(name)) {
+									type = packet;
+									break;
+								}
+								for (String className : packet.getClassNames()) {
+									if (className.equalsIgnoreCase(name)) {
+										type = packet;
+										break;
+									}
+								}
+							}
+						}
+					}
+				} catch (IllegalArgumentException ex) { // RIP
+					type = null;
+				}
+
+				if (type == null) {
+					sender.sendMessage(ChatColor.RED + "Unknown packet: " + args[2]);
+					return true;
+				}
+
+				if (args.length > 3) {
+					if (args[3].equalsIgnoreCase("console")) {
+						this.location = LogLocation.CONSOLE;
+					} else {
+						this.location = LogLocation.FILE;
+					}
+				}
+
+				if (pSender == Sender.CLIENT) {
+					if (receivingTypes.contains(type)) {
+						receivingTypes.remove(type);
+					} else {
+						receivingTypes.add(type);
+					}
+				} else {
+					if (sendingTypes.contains(type)) {
+						sendingTypes.remove(type);
+					} else {
+						sendingTypes.add(type);
+					}
+				}
+
+				startLogging();
+				sender.sendMessage(ChatColor.GREEN + "Now logging " + type.getPacketClass().getSimpleName());
+				return true;
+			}
+
+			sender.sendMessage(ChatColor.RED + "Invalid syntax: /packetlog <protocol> <sender> <packet> [location]");
+			return true;
+		} catch (Throwable ex) {
+			sender.sendMessage(ChatColor.RED + "Failed to parse command: " + ex.toString());
+			return true;
+		}
+	}
+
+	private void startLogging() {
+		manager.removePacketListener(this);
+
+		if (sendingTypes.isEmpty() && receivingTypes.isEmpty()) {
+			return;
+		}
+
+		this.sendingWhitelist = ListeningWhitelist.newBuilder().types(sendingTypes).build();
+		this.receivingWhitelist = ListeningWhitelist.newBuilder().types(receivingTypes).build();
+
+		// Setup the file logger if it hasn't been already
+		if (location == LogLocation.FILE && fileLogger == null) {
+			fileLogger = Logger.getLogger("ProtocolLib-FileLogging");
+
+			for (Handler handler : fileLogger.getHandlers())
+				fileLogger.removeHandler(handler);
+			fileLogger.setUseParentHandlers(false);
+
+			try {
+				File logFile = new File(plugin.getDataFolder(), "log.log");
+				FileHandler handler = new FileHandler(logFile.getAbsolutePath(), true);
+				handler.setFormatter(new LogFormatter());
+				fileLogger.addHandler(handler);
+			} catch (IOException ex) {
+				plugin.getLogger().log(Level.SEVERE, "Failed to obtain log file:", ex);
+				return;
+			}
+		}
+
+		manager.addPacketListener(this);
+	}
+
+	@Override
+	public void onPacketSending(PacketEvent event) {
+		log(event);
+	}
+
+	@Override
+	public void onPacketReceiving(PacketEvent event) {
+		log(event);
+	}
+
+	// Here's where the magic happens
+
+	private static String hexDump(byte[] bytes) throws IOException {
+		try (ByteArrayOutputStream output = new ByteArrayOutputStream()) {
+			HexDump.dump(bytes, 0, output, 0);
+			return new String(output.toByteArray(), Charsets.UTF_8);
+		}
+	}
+
+	private void log(PacketEvent event) {
+		try {
+			byte[] bytes = WirePacket.bytesFromPacket(event.getPacket());
+			String hexDump = hexDump(bytes);
+
+			if (location == LogLocation.FILE) {
+				fileLogger.log(Level.INFO, event.getPacketType() + ":");
+				fileLogger.log(Level.INFO, hexDump);
+				fileLogger.log(Level.INFO, "");
+			} else {
+				System.out.println(event.getPacketType() + ":");
+				System.out.println(hexDump);
+				System.out.println();
+			}
+		} catch (Throwable ex) {
+			plugin.getLogger().log(Level.WARNING, "Failed to log packet " + event.getPacketType() + ":", ex);
+			plugin.getLogger().log(Level.WARNING, "Clearing packet logger...");
+
+			sendingTypes.clear();
+			receivingTypes.clear();
+			startLogging();
+		}
+	}
+
+	@Override
+	public ListeningWhitelist getSendingWhitelist() {
+		return sendingWhitelist;
+	}
+
+	@Override
+	public ListeningWhitelist getReceivingWhitelist() {
+		return receivingWhitelist;
+	}
+
+	@Override
+	public Plugin getPlugin() {
+		return plugin;
+	}
+
+	private enum LogLocation {
+		CONSOLE, FILE
+	}
+
+	private static class LogFormatter extends Formatter {
+		private static final SimpleDateFormat DATE = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
+		private static final String LINE_SEPARATOR = System.getProperty("line.separator");
+		private static final String FORMAT = "[{0}] {1}";
+
+		@Override
+		public String format(LogRecord record) {
+			String string = formatMessage(record);
+			if (string.isEmpty()) {
+				return LINE_SEPARATOR;
+			}
+
+			StringBuilder message = new StringBuilder();
+			message.append(MessageFormat.format(FORMAT, DATE.format(record.getMillis()), string));
+			message.append(LINE_SEPARATOR);
+			return message.toString();
+		}
+	}
+}

src/main/java/com/comphenix/protocol/PacketStream.java

@@ -0,0 +1,114 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol;
+
+import java.lang.reflect.InvocationTargetException;
+
+import org.bukkit.entity.Player;
+
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.NetworkMarker;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.injector.netty.WirePacket;
+
+/**
+ * Represents a object capable of sending or receiving packets.
+ * 
+ * @author Kristian
+ */
+public interface PacketStream {
+	/**
+	 * Send a packet to the given player.
+	 * @param receiver - the reciever.
+	 * @param packet - packet to send.
+	 * @throws InvocationTargetException - if an error occured when sending the packet.
+	 */
+	public void sendServerPacket(Player receiver, PacketContainer packet)
+			throws InvocationTargetException;
+
+	/**
+	 * Send a packet to the given player.
+	 * @param receiver - the reciever.
+	 * @param packet - packet to send.
+	 * @param filters - whether or not to invoke any packet filters below {@link ListenerPriority#MONITOR}.
+	 * @throws InvocationTargetException - if an error occured when sending the packet.
+	 */
+	public void sendServerPacket(Player receiver, PacketContainer packet, boolean filters)
+			throws InvocationTargetException;
+	
+	/**
+	 * Send a packet to the given player.
+	 * @param receiver - the receiver.
+	 * @param packet - packet to send.
+	 * @param marker - the network marker to use.
+	 * @param filters - whether or not to invoke any packet filters below {@link ListenerPriority#MONITOR}.
+	 * @throws InvocationTargetException - if an error occured when sending the packet.
+	 */
+	public void sendServerPacket(Player receiver, PacketContainer packet, NetworkMarker marker, boolean filters)
+			throws InvocationTargetException;
+
+	/**
+	 * Send a wire packet to the given player.
+	 * @param receiver - the receiver.
+	 * @param id - packet id.
+	 * @param bytes - packet bytes.
+	 * @throws InvocationTargetException if an error occured when sending the packet.
+	 */
+	public void sendWirePacket(Player receiver, int id, byte[] bytes) throws InvocationTargetException;
+
+	/**
+	 * Send a wire packet to the given player.
+	 * @param receiver - the receiver.
+	 * @param packet - packet to send.
+	 * @throws InvocationTargetException if an error occured when sending the packet.
+	 */
+	public void sendWirePacket(Player receiver, WirePacket packet) throws InvocationTargetException;
+
+	/**
+	 * Simulate recieving a certain packet from a given player.
+	 * @param sender - the sender.
+	 * @param packet - the packet that was sent.
+	 * @throws InvocationTargetException If the reflection machinery failed.
+	 * @throws IllegalAccessException If the underlying method caused an error.
+	 */
+	public void recieveClientPacket(Player sender, PacketContainer packet)
+			throws IllegalAccessException, InvocationTargetException;
+
+	/**
+	 * Simulate recieving a certain packet from a given player.
+	 * @param sender - the sender.
+	 * @param packet - the packet that was sent.
+	 * @param filters - whether or not to invoke any packet filters below {@link ListenerPriority#MONITOR}.
+	 * @throws InvocationTargetException If the reflection machinery failed.
+	 * @throws IllegalAccessException If the underlying method caused an error.
+	 */
+	public void recieveClientPacket(Player sender, PacketContainer packet, boolean filters)
+			throws IllegalAccessException, InvocationTargetException;
+	
+	/**
+	 * Simulate recieving a certain packet from a given player.
+	 * @param sender - the sender.
+	 * @param packet - the packet that was sent.
+	 * @param marker - the network marker to use.
+	 * @param filters - whether or not to invoke any packet filters below {@link ListenerPriority#MONITOR}.
+	 * @throws InvocationTargetException If the reflection machinery failed.
+	 * @throws IllegalAccessException If the underlying method caused an error.
+	 */
+	public void recieveClientPacket(Player sender, PacketContainer packet, NetworkMarker marker, boolean filters)
+			throws IllegalAccessException, InvocationTargetException;
+}

src/main/java/com/comphenix/protocol/PacketTypeEnum.java

@@ -0,0 +1,142 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Modifier;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Set;
+
+import com.comphenix.protocol.PacketType;
+import com.google.common.collect.BiMap;
+import com.google.common.collect.HashBiMap;
+import com.google.common.collect.Sets;
+
+/**
+ * Represents a more modern object-based enum.
+ * <p>
+ * This is useful if you want the flexibility of a modern Java enum, but don't
+ * want to prevent the creation of additional members dynamically.
+ * @author Kristian
+ */
+public class PacketTypeEnum implements Iterable<PacketType> {
+	// Used to convert between IDs and names
+	protected Set<PacketType> members = Sets.newHashSet();
+
+	/**
+	 * Registers every declared PacketType field.
+	 */
+	public PacketTypeEnum() {
+		registerAll();
+	}
+
+	/**
+	 * Registers every public assignable static field as a member.
+	 */
+	@SuppressWarnings("unchecked")
+	protected void registerAll() {
+		try {
+			// Register every non-deprecated field
+			for (Field entry : this.getClass().getFields()) {
+				if (Modifier.isStatic(entry.getModifiers()) && PacketType.class.isAssignableFrom(entry.getType())) {
+					PacketType value = (PacketType) entry.get(null);
+					if (value == null) {
+						throw new IllegalArgumentException("Field " + entry.getName() + " was null!");
+					}
+
+					value.setName(entry.getName());
+
+					if (entry.getAnnotation(PacketType.ForceAsync.class) != null) {
+						value.forceAsync();
+					}
+
+					boolean deprecated = entry.getAnnotation(Deprecated.class) != null;
+					if (deprecated) value.setDeprecated();
+
+					if (members.contains(value)) {
+						// Replace potentially deprecated packet types with non-deprecated ones
+						if (!deprecated) {
+							members.remove(value);
+							members.add(value);
+						}
+					} else {
+						members.add(value);
+					}
+				}
+			}
+		} catch (Exception ex) {
+			ex.printStackTrace();
+		}
+	}
+	
+	/**
+	 * Registers a member if its not present.
+	 * @param instance - member instance.
+	 * @param name - name of member.
+	 * @return TRUE if the member was registered, FALSE otherwise.
+	 */
+	public boolean registerMember(PacketType instance, String name) {
+		instance.setName(name);
+
+		if (!members.contains(instance)) {
+			members.add(instance);
+			return true;
+		}
+
+		return false;
+	}
+	
+	/**
+	 * Determines whether or not the given member has been registered to this enum.
+	 * @param member - the member to check.
+	 * @return TRUE if the given member has been registered, FALSE otherwise.
+	 */
+	public boolean hasMember(PacketType member) {
+		return members.contains(member);
+	}
+	
+	/**
+	 * Retrieve a member by name,
+	 * @param name - name of member to retrieve.
+	 * @return The member, or NULL if not found.
+	 * @deprecated Don't use this
+	 */
+	@Deprecated
+	public PacketType valueOf(String name) {
+		for (PacketType member : members) {
+			if (member.name().equals(name))
+				return member;
+		}
+
+		return null;
+	}
+
+	/**
+	 * Retrieve every registered member.
+	 * @return Enumeration of every value.
+	 */
+	public Set<PacketType> values() {
+		return new HashSet<>(members);
+	}
+
+	@Override
+	public Iterator<PacketType> iterator() {
+		return members.iterator();
+	}
+}

src/main/java/com/comphenix/protocol/PacketTypeLookup.java

@@ -0,0 +1,187 @@
+package com.comphenix.protocol;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+import com.comphenix.protocol.PacketType.Protocol;
+import com.comphenix.protocol.PacketType.Sender;
+import com.comphenix.protocol.collections.IntegerMap;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.HashMultimap;
+import com.google.common.collect.Multimap;
+
+/**
+ * Retrieve a packet type based on its version and ID, optionally with protocol and sender too.
+ * @author Kristian
+ */
+class PacketTypeLookup {
+	public static class ProtocolSenderLookup {
+		// Unroll lookup for performance reasons
+		public final IntegerMap<PacketType> HANDSHAKE_CLIENT = IntegerMap.newMap();
+		public final IntegerMap<PacketType> HANDSHAKE_SERVER = IntegerMap.newMap();
+		public final IntegerMap<PacketType> GAME_CLIENT = IntegerMap.newMap();
+		public final IntegerMap<PacketType> GAME_SERVER = IntegerMap.newMap();
+		public final IntegerMap<PacketType> STATUS_CLIENT = IntegerMap.newMap();
+		public final IntegerMap<PacketType> STATUS_SERVER = IntegerMap.newMap();
+		public final IntegerMap<PacketType> LOGIN_CLIENT = IntegerMap.newMap();
+		public final IntegerMap<PacketType> LOGIN_SERVER = IntegerMap.newMap();
+		
+		/**
+		 * Retrieve the correct integer map for a specific protocol and sender.
+		 * @param protocol - the protocol.
+		 * @param sender - the sender.
+		 * @return The integer map of packets.
+		 */
+		public IntegerMap<PacketType> getMap(Protocol protocol, Sender sender) {
+			switch (protocol) {
+				case HANDSHAKING: 
+					return sender == Sender.CLIENT ? HANDSHAKE_CLIENT : HANDSHAKE_SERVER;
+				case PLAY:
+					return sender == Sender.CLIENT ? GAME_CLIENT : GAME_SERVER;
+				case STATUS:
+					return sender == Sender.CLIENT ? STATUS_CLIENT : STATUS_SERVER;
+				case LOGIN:
+					return sender == Sender.CLIENT ? LOGIN_CLIENT : LOGIN_SERVER;
+				default:
+					throw new IllegalArgumentException("Unable to find protocol " + protocol);
+			}
+		}
+	}
+
+	public static class ClassLookup {
+		// Unroll lookup for performance reasons
+		public final Map<String, PacketType> HANDSHAKE_CLIENT = new ConcurrentHashMap<String, PacketType>();
+		public final Map<String, PacketType> HANDSHAKE_SERVER = new ConcurrentHashMap<String, PacketType>();
+		public final Map<String, PacketType> GAME_CLIENT = new ConcurrentHashMap<String, PacketType>();
+		public final Map<String, PacketType> GAME_SERVER = new ConcurrentHashMap<String, PacketType>();
+		public final Map<String, PacketType> STATUS_CLIENT = new ConcurrentHashMap<String, PacketType>();
+		public final Map<String, PacketType> STATUS_SERVER = new ConcurrentHashMap<String, PacketType>();
+		public final Map<String, PacketType> LOGIN_CLIENT = new ConcurrentHashMap<String, PacketType>();
+		public final Map<String, PacketType> LOGIN_SERVER = new ConcurrentHashMap<String, PacketType>();
+		
+		/**
+		 * Retrieve the correct integer map for a specific protocol and sender.
+		 * @param protocol - the protocol.
+		 * @param sender - the sender.
+		 * @return The integer map of packets.
+		 */
+		public Map<String, PacketType> getMap(Protocol protocol, Sender sender) {
+			switch (protocol) {
+				case HANDSHAKING: 
+					return sender == Sender.CLIENT ? HANDSHAKE_CLIENT : HANDSHAKE_SERVER;
+				case PLAY:
+					return sender == Sender.CLIENT ? GAME_CLIENT : GAME_SERVER;
+				case STATUS:
+					return sender == Sender.CLIENT ? STATUS_CLIENT : STATUS_SERVER;
+				case LOGIN:
+					return sender == Sender.CLIENT ? LOGIN_CLIENT : LOGIN_SERVER;
+				default:
+					throw new IllegalArgumentException("Unable to find protocol " + protocol);
+			}
+		}
+	}
+	
+	// Packet IDs from 1.6.4 and below
+	private final IntegerMap<PacketType> legacyLookup = new IntegerMap<PacketType>();
+	private final IntegerMap<PacketType> serverLookup = new IntegerMap<PacketType>();
+	private final IntegerMap<PacketType> clientLookup = new IntegerMap<PacketType>();
+	
+	// Packets for 1.7.2
+	private final ProtocolSenderLookup idLookup = new ProtocolSenderLookup();
+
+	// Packets for 1.8+
+	private final ClassLookup classLookup = new ClassLookup();
+
+	// Packets based on name
+	private final Multimap<String, PacketType> nameLookup = HashMultimap.create();
+
+	/**
+	 * Add a collection of packet types to the lookup.
+	 * @param types - the types to add.
+	 */
+	public PacketTypeLookup addPacketTypes(Iterable<? extends PacketType> types) {
+		Preconditions.checkNotNull(types, "types cannot be NULL");
+		
+		for (PacketType type : types) {
+			int legacy = type.getLegacyId();
+			
+			// Skip unknown legacy packets
+			if (legacy != PacketType.UNKNOWN_PACKET) {
+				if (type.isServer())
+					serverLookup.put(type.getLegacyId(), type);
+				if (type.isClient())
+					clientLookup.put(type.getLegacyId(), type);
+				legacyLookup.put(type.getLegacyId(), type);
+			}
+			// Skip unknown current packets
+			if (type.getCurrentId() != PacketType.UNKNOWN_PACKET) {
+				idLookup.getMap(type.getProtocol(), type.getSender()).put(type.getCurrentId(), type);
+				classLookup.getMap(type.getProtocol(), type.getSender()).put(type.getClassNames()[0], type);
+			}
+			nameLookup.put(type.name(), type);
+		}
+		return this;
+	}
+	
+	/**
+	 * Retrieve a packet type from a legacy (1.6.4 and below) packet ID.
+	 * @param packetId - the legacy packet ID.
+	 * @return The corresponding packet type, or NULL if not found.
+	 */
+	public PacketType getFromLegacy(int packetId) {
+		return legacyLookup.get(packetId);
+	}
+	
+	/**
+	 * Retrieve an unmodifiable view of all the packet types with this name.
+	 * @param name - the name.
+	 * @return The packet types, usually one.
+	 */
+	public Collection<PacketType> getFromName(String name) {
+		return Collections.unmodifiableCollection(nameLookup.get(name));
+	}
+	
+	/**
+	 * Retrieve a packet type from a legacy (1.6.4 and below) packet ID.
+	 * @param packetId - the legacy packet ID.
+	 * @param preference - which packet type to look for first.
+	 * @return The corresponding packet type, or NULL if not found.
+	 */
+	public PacketType getFromLegacy(int packetId, Sender preference) {	
+		if (preference == Sender.CLIENT)
+			return getFirst(packetId, clientLookup, serverLookup);
+		else
+			return getFirst(packetId, serverLookup, clientLookup);
+	}
+	
+	// Helper method for looking up in two sets
+	private <T> T getFirst(int packetId, IntegerMap<T> first, IntegerMap<T> second) {
+		if (first.containsKey(packetId))
+			return first.get(packetId);
+		else
+			return second.get(packetId);
+	}
+	
+	/**
+	 * Retrieve a packet type from a protocol, sender and packet ID.
+	 * @param protocol - the current protocol.
+	 * @param sender - the sender.
+	 * @param packetId - the packet ID.
+	 * @return The corresponding packet type, or NULL if not found.
+	 * @deprecated IDs are no longer reliable
+	 */
+	@Deprecated
+	public PacketType getFromCurrent(Protocol protocol, Sender sender, int packetId) {
+		return idLookup.getMap(protocol, sender).get(packetId);
+	}
+
+	public PacketType getFromCurrent(Protocol protocol, Sender sender, String name) {
+		return classLookup.getMap(protocol, sender).get(name);
+	}
+
+	public ClassLookup getClassLookup() {
+		return classLookup;
+	}
+}

src/main/java/com/comphenix/protocol/PacketTypeParser.java

@@ -0,0 +1,148 @@
+package com.comphenix.protocol;
+
+import java.util.Collection;
+import java.util.Deque;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Locale;
+import java.util.Set;
+
+import com.comphenix.protocol.PacketType.Protocol;
+import com.comphenix.protocol.PacketType.Sender;
+import com.comphenix.protocol.events.ConnectionSide;
+import com.google.common.collect.ContiguousSet;
+import com.google.common.collect.DiscreteDomain;
+import com.google.common.collect.Lists;
+import com.google.common.collect.Range;
+import com.google.common.collect.Sets;
+
+class PacketTypeParser {
+	public final static Range<Integer> DEFAULT_MAX_RANGE = Range.closed(0, 255);
+	
+	private Sender side = null;
+	private Protocol protocol = null;
+	
+	public Set<PacketType> parseTypes(Deque<String> arguments, Range<Integer> defaultRange) {
+		Set<PacketType> result = Sets.newHashSet();
+		side = null;
+		protocol = null;
+		
+		// Find these first
+		while (side == null) {
+			String arg = arguments.poll();
+			
+			// Attempt to parse a side or protocol first
+			if (side == null) {
+				ConnectionSide connection = parseSide(arg);
+				
+				if (connection != null) {
+					side = connection.getSender();
+					continue;
+				}
+			}
+			if (protocol == null) {
+				if ((protocol = parseProtocol(arg)) != null) {
+					continue;
+				}
+			}
+			throw new IllegalArgumentException("Specify connection side (CLIENT or SERVER).");
+		}
+		
+		// Then we move on to parsing IDs (named packet types soon to come)
+		List<Range<Integer>> ranges = RangeParser.getRanges(arguments, DEFAULT_MAX_RANGE);
+
+		// And finally, parse packet names if we have a protocol
+		if (protocol != null) {
+			for (Iterator<String> it = arguments.iterator(); it.hasNext(); ) {
+				String name = it.next().toUpperCase(Locale.ENGLISH);
+				Collection<PacketType> names = PacketType.fromName(name);
+				
+				for (PacketType type : names) {
+					if (type.getProtocol() == protocol && type.getSender() == side) {
+						result.add(type);
+						it.remove();
+					}
+				}
+			}
+		}
+		
+		// Supply a default integer range
+		if (ranges.isEmpty() && result.isEmpty()) {
+			ranges = Lists.newArrayList();
+			ranges.add(defaultRange);
+		}
+		
+		for (Range<Integer> range : ranges) {
+			for (Integer id : ContiguousSet.create(range, DiscreteDomain.integers())) {
+				// Deprecated packets
+				if (protocol == null) {
+					if (PacketType.hasLegacy(id)) {
+						result.add(PacketType.findLegacy(id, side));
+					}
+				} else {
+					if (PacketType.hasCurrent(protocol, side, id)) {
+						result.add(PacketType.findCurrent(protocol, side, id));
+					}
+				}
+			}
+		}
+		return result;
+	}
+	
+	/**
+	 * Retrieve the last parsed protocol.
+	 * @return Last protocol.
+	 */
+	public Protocol getLastProtocol() {
+		return protocol;
+	}
+	
+	/**
+	 * Retrieve the last sender.
+	 * @return Last sender.
+	 */
+	public Sender getLastSide() {
+		return side;
+	}
+	
+	/**
+	 * Parse a connection sides from a string.
+	 * @param text - the possible connection side.
+	 * @return The connection side, or NULL if not found.
+	 */
+	public ConnectionSide parseSide(String text) {
+		if (text == null)
+			return null;
+		String candidate = text.toLowerCase();
+		
+		// Parse the side gracefully
+		if ("client".startsWith(candidate))
+			return ConnectionSide.CLIENT_SIDE;
+		else if ("server".startsWith(candidate))
+			return ConnectionSide.SERVER_SIDE;
+		else
+			return null;
+	}
+	
+	/**
+	 * Parse a protocol from a string.
+	 * @param text - the possible protocol.
+	 * @return The protocol, or NULL if not found.
+	 */
+	public Protocol parseProtocol(String text) {
+		if (text == null)
+			return null;
+		String candidate = text.toLowerCase();
+		
+		if ("handshake".equals(candidate) || "handshaking".equals(candidate))
+			return Protocol.HANDSHAKING;
+		else if ("login".equals(candidate))
+			return Protocol.LOGIN;
+		else if ("play".equals(candidate) || "game".equals(candidate))
+			return Protocol.PLAY;
+		else if ("status".equals(candidate))
+			return Protocol.STATUS;
+		else
+			return null;
+	}
+}

src/main/java/com/comphenix/protocol/Packets.java

@@ -1,198 +1,300 @@
-package com.comphenix.protocol;
-
-import com.comphenix.protocol.reflect.IntEnum;
-
-/**
- * List of known packet IDs since 1.3.2.
- * 
- * @author Kristian
- */
-public final class Packets {
-	
-	/**
-	 * List of packets sent only by the server.
-	 * @author Kristian
-	 */
-	public static final class Server extends IntEnum {
-		/**
-		 * The singleton instance. Can also be retrieved from the parent class.
-		 */
-		private static Server INSTANCE = new Server();
-		
-		public static final int KEEP_ALIVE = 0;
-		public static final int LOGIN = 1;
-		public static final int CHAT = 3;
-		public static final int UPDATE_TIME = 4;
-		public static final int ENTITY_EQUIPMENT = 5;
-		public static final int SPAWN_POSITION = 6;
-		public static final int UPDATE_HEALTH = 8;
-		public static final int RESPAWN = 9;
-		public static final int FLYING = 10;
-		public static final int PLAYER_POSITION = 11;
-		public static final int PLAYER_LOOK = 12;
-		public static final int PLAYER_LOOK_MOVE = 13;
-		public static final int ENTITY_LOCATION_ACTION = 17;
-		public static final int ARM_ANIMATION = 18;
-		public static final int NAMED_ENTITY_SPAWN = 20;
-		public static final int PICKUP_SPAWN = 21;
-		public static final int COLLECT = 22;
-		public static final int VEHICLE_SPAWN = 23;
-		public static final int MOB_SPAWN = 24;
-		public static final int ENTITY_PAINTING = 25;
-		public static final int ADD_EXP_ORB = 26;
-		public static final int ENTITY_VELOCITY = 28;
-		public static final int DESTROY_ENTITY = 29;
-		public static final int ENTITY = 30;
-		public static final int REL_ENTITY_MOVE = 31;
-		public static final int ENTITY_LOOK = 32;
-		public static final int REL_ENTITY_MOVE_LOOK = 33;
-		public static final int ENTITY_TELEPORT = 34;
-		public static final int ENTITY_HEAD_ROTATION = 35;
-		public static final int ENTITY_STATUS = 38;
-		public static final int ATTACH_ENTITY = 39;
-		public static final int ENTITY_METADATA = 40;
-		public static final int MOB_EFFECT = 41;
-		public static final int REMOVE_MOB_EFFECT = 42;
-		public static final int SET_EXPERIENCE = 43;
-		public static final int MAP_CHUNK = 51;
-		public static final int MULTI_BLOCK_CHANGE = 52;
-		public static final int BLOCK_CHANGE = 53;
-		public static final int PLAY_NOTE_BLOCK = 54;
-		public static final int BLOCK_BREAK_ANIMATION = 55;
-		public static final int MAP_CHUNK_BULK = 56;
-		public static final int EXPLOSION = 60;
-		public static final int WORLD_EVENT = 61;
-		public static final int NAMED_SOUND_EFFECT = 62;
-		public static final int BED = 70;
-		public static final int WEATHER = 71;
-		public static final int OPEN_WINDOW = 100;
-		public static final int CLOSE_WINDOW = 101;
-		public static final int SET_SLOT = 103;
-		public static final int WINDOW_ITEMS = 104;
-		public static final int CRAFT_PROGRESS_BAR = 105;
-		public static final int TRANSACTION = 106;
-		public static final int SET_CREATIVE_SLOT = 107;
-		public static final int UPDATE_SIGN = 130;
-		public static final int ITEM_DATA = 131;
-		public static final int TILE_ENTITY_DATA = 132;
-		public static final int STATISTIC = 200;
-		public static final int PLAYER_INFO = 201;
-		public static final int ABILITIES = 202;
-		public static final int TAB_COMPLETE = 203;
-		public static final int CUSTOM_PAYLOAD = 250;
-		public static final int KEY_RESPONSE = 252;
-		public static final int KEY_REQUEST = 253;
-		public static final int KICK_DISCONNECT = 255;
-		
-		/**
-		 * A registry that parses between names and packet IDs.
-		 * @return The current server registry.
-		 */
-		public static Server getRegistry() {
-			return INSTANCE;
-		}
-		
-		// We only allow a single instance of this class
-	    private Server() {
-			super();
-		}
-	}
-	
-	/**
-	 * List of packets sent by the client.
-	 * @author Kristian
-	 */
-	public static class Client extends IntEnum {
-		/**
-		 * The singleton instance. Can also be retrieved from the parent class.
-		 */
-		private static Client INSTANCE = new Client();
-		
-		public static final int KEEP_ALIVE = 0;
-		public static final int LOGIN = 1;
-		public static final int HANDSHAKE = 2;
-		public static final int CHAT = 3;
-		public static final int USE_ENTITY = 7;
-		public static final int RESPAWN = 9;
-		public static final int FLYING = 10;
-		public static final int PLAYER_POSITION = 11;
-		public static final int PLAYER_LOOK = 12;
-		public static final int PLAYER_LOOK_MOVE = 13;
-		public static final int BLOCK_DIG = 14;
-		public static final int PLACE = 15;
-		public static final int BLOCK_ITEM_SWITCH = 16;
-		public static final int ARM_ANIMATION = 18;
-		public static final int ENTITY_ACTION = 19;
-		public static final int CLOSE_WINDOW = 101;
-		public static final int WINDOW_CLICK = 102;
-		public static final int TRANSACTION = 106;
-		public static final int SET_CREATIVE_SLOT = 107;
-		public static final int BUTTON_CLICK = 108;
-		public static final int UPDATE_SIGN = 130;
-		public static final int ABILITIES = 202;
-		public static final int TAB_COMPLETE = 203;
-		public static final int LOCALE_AND_VIEW_DISTANCE = 204;
-		public static final int CLIENT_COMMAND = 205;
-		public static final int CUSTOM_PAYLOAD = 250;
-		public static final int KEY_RESPONSE = 252;
-		public static final int GET_INFO = 254;
-		public static final int KICK_DISCONNECT = 255;
-		
-		/**
-		 * A registry that parses between names and packet IDs.
-		 * @return The current client registry.
-		 */
-		public static Client getRegistry() {
-			return INSTANCE;
-		}
-		
-		// Like above
-		private Client() {
-			super();
-		}
-	}
-	
-	/**
-	 * A registry that parses between names and packet IDs.
-	 * @return The current client registry.
-	 */
-	public static Server getServerRegistry() {
-		return Server.getRegistry();
-	}
-
-	/**
-	 * A registry that parses between names and packet IDs.
-	 * @return The current server registry.
-	 */
-	public static Client getClientRegistry() {
-		return Client.INSTANCE;
-	}
-	
-	/**
-	 * Find a packet by name. Must be capitalized and use underscores.
-	 * @param name - name of packet to find.
-	 * @return The packet ID found.
-	 */
-	public static int valueOf(String name) {
-		Integer serverAttempt = Server.INSTANCE.valueOf(name);
-		
-		if (serverAttempt != null)
-			return serverAttempt;
-		else
-			return Client.INSTANCE.valueOf(name);
-	}
-	
-	/**
-	 * Retrieves the name of a packet.
-	 * @param packetID - packet to retrieve name.
-	 * @return The name, or NULL if unable to find such a packet.
-	 */
-	public static String getDeclaredName(int packetID) {
-		String serverAttempt = Server.INSTANCE.getDeclaredName(packetID);
-		
-		if (serverAttempt != null)
-			return serverAttempt;
-		else
-			return Client.INSTANCE.getDeclaredName(packetID);
-	}
-}
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol;
+
+import com.comphenix.protocol.reflect.IntEnum;
+
+/**
+ * List of known packet IDs since 1.3.2.
+ * <p>
+ * Deprecated: Use {@link PacketType} instead.
+ * @author Kristian
+ */
+@Deprecated
+public final class Packets {
+	
+	/**
+	 * The highest possible packet ID. It's unlikely that this value will ever change.
+	 */
+	public static final int MAXIMUM_PACKET_ID = 255;
+	
+	/**
+	 * The maximum number of unique packet IDs. It's unlikely this will ever change.
+	 */
+	public static final int PACKET_COUNT = 256;
+	
+	/**
+	 * List of packets sent only by the server.
+	 * <p>
+	 * Deprecated: Use {@link PacketType} instead.
+	 * @author Kristian
+	 */
+	@Deprecated
+	public static final class Server extends IntEnum {
+		/**
+		 * The singleton instance. Can also be retrieved from the parent class.
+		 */
+		private static Server INSTANCE = new Server();
+		
+		public static final int KEEP_ALIVE = 0;
+		public static final int LOGIN = 1;
+		public static final int CHAT = 3;
+		public static final int UPDATE_TIME = 4;
+		public static final int ENTITY_EQUIPMENT = 5;
+		public static final int SPAWN_POSITION = 6;
+		public static final int UPDATE_HEALTH = 8;
+		public static final int RESPAWN = 9;
+		public static final int FLYING = 10;
+		public static final int PLAYER_POSITION = 11;
+		public static final int PLAYER_LOOK = 12;
+		public static final int PLAYER_LOOK_MOVE = 13;
+		/**
+		 * Made bi-directional in 1.4.6.
+		 */
+		public static final int BLOCK_ITEM_SWITCH = 16;
+		public static final int ENTITY_LOCATION_ACTION = 17;
+		public static final int ARM_ANIMATION = 18;
+		public static final int NAMED_ENTITY_SPAWN = 20;
+		/**
+		 * Removed in 1.4.6 and replaced with VEHICLE_SPAWN. 
+		 * @see <a href="http://www.wiki.vg/Protocol_History#2012-12-20">Protocol History - MinecraftCoalition</a>
+		 */
+		@Deprecated()
+		public static final int PICKUP_SPAWN = 21;
+		public static final int COLLECT = 22;
+		public static final int VEHICLE_SPAWN = 23;
+		public static final int MOB_SPAWN = 24;
+		public static final int ENTITY_PAINTING = 25;
+		public static final int ADD_EXP_ORB = 26;
+		public static final int ENTITY_VELOCITY = 28;
+		public static final int DESTROY_ENTITY = 29;
+		public static final int ENTITY = 30;
+		public static final int REL_ENTITY_MOVE = 31;
+		public static final int ENTITY_LOOK = 32;
+		public static final int REL_ENTITY_MOVE_LOOK = 33;
+		public static final int ENTITY_TELEPORT = 34;
+		public static final int ENTITY_HEAD_ROTATION = 35;
+		public static final int ENTITY_STATUS = 38;
+		public static final int ATTACH_ENTITY = 39;
+		
+		/**
+		 * Sent when an entities DataWatcher is updated.
+		 * <p>
+		 * Remember to clone the packet if you are modifying it.
+		 */
+		public static final int ENTITY_METADATA = 40;
+		public static final int MOB_EFFECT = 41;
+		public static final int REMOVE_MOB_EFFECT = 42;
+		public static final int SET_EXPERIENCE = 43;
+		public static final int UPDATE_ATTRIBUTES = 44;
+		public static final int MAP_CHUNK = 51;
+		public static final int MULTI_BLOCK_CHANGE = 52;
+		public static final int BLOCK_CHANGE = 53;
+		public static final int PLAY_NOTE_BLOCK = 54;
+		public static final int BLOCK_BREAK_ANIMATION = 55;
+		public static final int MAP_CHUNK_BULK = 56;
+		public static final int EXPLOSION = 60;
+		public static final int WORLD_EVENT = 61;
+		public static final int NAMED_SOUND_EFFECT = 62;
+		public static final int WORLD_PARTICLES = 63;
+		public static final int BED = 70;
+		public static final int WEATHER = 71;
+		public static final int OPEN_WINDOW = 100;
+		public static final int CLOSE_WINDOW = 101;
+		public static final int SET_SLOT = 103;
+		public static final int WINDOW_ITEMS = 104;
+		public static final int CRAFT_PROGRESS_BAR = 105;
+		public static final int TRANSACTION = 106;
+		public static final int SET_CREATIVE_SLOT = 107;
+		public static final int UPDATE_SIGN = 130;
+		public static final int ITEM_DATA = 131;
+		
+		/**
+		 * Sent the first time a tile entity (chest inventory, etc.) is withing range of the player, or has been updated.
+		 * <p>
+		 * Remember to clone the packet if you are modifying it.
+		 */
+		public static final int TILE_ENTITY_DATA = 132;
+		public static final int OPEN_TILE_ENTITY = 133;
+		public static final int STATISTIC = 200;
+		public static final int PLAYER_INFO = 201;
+		public static final int ABILITIES = 202;
+		public static final int TAB_COMPLETE = 203;
+		public static final int SCOREBOARD_OBJECTIVE = 206;
+		public static final int UPDATE_SCORE  = 207;
+		public static final int DISPLAY_SCOREBOARD = 208;
+		public static final int TEAMS = 209;
+		public static final int CUSTOM_PAYLOAD = 250;
+		public static final int KEY_RESPONSE = 252;
+		public static final int KEY_REQUEST = 253;
+		public static final int KICK_DISCONNECT = 255;
+		
+		/**
+		 * This packet was introduced in 1.7.2.
+		 */
+		public static final int PING_TIME = 230;
+		
+		/**
+		 * This packet was introduced in 1.7.2.
+		 */
+		public static final int LOGIN_SUCCESS = 232;
+		
+		/**
+		 * A registry that parses between names and packet IDs.
+		 * @return The current server registry.
+		 */
+		public static Server getRegistry() {
+			return INSTANCE;
+		}
+
+		// We only allow a single instance of this class
+	    private Server() {
+			super();
+		}
+	}
+	
+	/**
+	 * List of packets sent by the client.
+	 * <p>
+	 * Deprecated: Use {@link PacketType} instead.
+	 * @author Kristian
+	 */
+	@Deprecated
+	public static class Client extends IntEnum {
+		/**
+		 * The singleton instance. Can also be retrieved from the parent class.
+		 */
+		private static Client INSTANCE = new Client();
+		
+		public static final int KEEP_ALIVE = 0;
+		public static final int LOGIN = 1;
+		public static final int HANDSHAKE = 2;
+		public static final int CHAT = 3;
+		public static final int USE_ENTITY = 7;
+		
+		/**
+		 * Since 1.3.1, the client no longer sends a respawn packet. Moved to CLIENT_COMMAND.
+		 */
+		@Deprecated
+		public static final int RESPAWN = 9;
+		
+		public static final int FLYING = 10;
+		public static final int PLAYER_POSITION = 11;
+		public static final int PLAYER_LOOK = 12;
+		public static final int PLAYER_LOOK_MOVE = 13;
+		public static final int BLOCK_DIG = 14;
+		public static final int PLACE = 15;
+		public static final int BLOCK_ITEM_SWITCH = 16;
+		public static final int ARM_ANIMATION = 18;
+		public static final int ENTITY_ACTION = 19;
+		public static final int PLAYER_INPUT = 27;
+		public static final int CLOSE_WINDOW = 101;
+		public static final int WINDOW_CLICK = 102;
+		public static final int TRANSACTION = 106;
+		public static final int SET_CREATIVE_SLOT = 107;
+		public static final int BUTTON_CLICK = 108;
+		public static final int UPDATE_SIGN = 130;
+		public static final int ABILITIES = 202;
+		public static final int TAB_COMPLETE = 203;
+		public static final int LOCALE_AND_VIEW_DISTANCE = 204;
+		public static final int CLIENT_COMMAND = 205;
+		public static final int CUSTOM_PAYLOAD = 250;
+		public static final int KEY_RESPONSE = 252;
+		public static final int GET_INFO = 254;
+		public static final int KICK_DISCONNECT = 255;
+		
+		/**
+		 * This packet was introduced in 1.7.2.
+		 */
+		public static final int PING_TIME = 230;
+		
+		/**
+		 * This packet was introduced in 1.7.2.
+		 */
+		public static final int LOGIN_START = 231;
+		
+		/**
+		 * A registry that parses between names and packet IDs.
+		 * @return The current client registry.
+		 */
+		public static Client getRegistry() {
+			return INSTANCE;
+		}
+
+		// Like above
+		private Client() {
+			super();
+		}
+	}
+	
+	/**
+	 * A registry that parses between names and packet IDs.
+	 * <p>
+	 * Deprecated: Use {@link PacketType} instead.
+	 * @return The current client registry.
+	 */
+	@Deprecated
+	public static Server getServerRegistry() {
+		return Server.getRegistry();
+	}
+
+	/**
+	 * A registry that parses between names and packet IDs.
+	 * <p>
+	 * Deprecated: Use {@link PacketType} instead.
+	 * @return The current server registry.
+	 */
+	@Deprecated
+	public static Client getClientRegistry() {
+		return Client.INSTANCE;
+	}
+	
+	/**
+	 * Find a packet by name. Must be capitalized and use underscores.
+	 * <p>
+	 * Deprecated: Use {@link PacketType} instead.
+	 * @param name - name of packet to find.
+	 * @return The packet ID found.
+	 */
+	@Deprecated
+	public static int valueOf(String name) {
+		Integer serverAttempt = Server.INSTANCE.valueOf(name);
+		
+		if (serverAttempt != null)
+			return serverAttempt;
+		else
+			return Client.INSTANCE.valueOf(name);
+	}
+	
+	/**
+	 * Retrieves the name of a packet.
+	 * <p>
+	 * Deprecated: Use {@link PacketType} instead.
+	 * @param packetID - packet to retrieve name.
+	 * @return The name, or NULL if unable to find such a packet.
+	 */
+	@Deprecated
+	public static String getDeclaredName(int packetID) {
+		String serverAttempt = Server.INSTANCE.getDeclaredName(packetID);
+		
+		if (serverAttempt != null)
+			return serverAttempt;
+		else
+			return Client.INSTANCE.getDeclaredName(packetID);
+	}
+}

src/main/java/com/comphenix/protocol/ProtocolConfig.java

@@ -0,0 +1,504 @@
+/**
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+package com.comphenix.protocol;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Locale;
+
+import org.bukkit.configuration.Configuration;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.plugin.Plugin;
+
+import com.comphenix.protocol.injector.PlayerInjectHooks;
+import com.google.common.base.Charsets;
+import com.google.common.collect.ImmutableList;
+import com.google.common.collect.Lists;
+import com.google.common.io.Files;
+
+/**
+ * Represents the configuration of ProtocolLib.
+ * 
+ * @author Kristian
+ */
+public class ProtocolConfig {
+	private static final String LAST_UPDATE_FILE = "lastupdate";
+
+	private static final String SECTION_GLOBAL = "global";
+	private static final String SECTION_AUTOUPDATER = "auto updater";
+
+	private static final String METRICS_ENABLED = "metrics";
+
+	private static final String IGNORE_VERSION_CHECK = "ignore version check";
+	private static final String BACKGROUND_COMPILER_ENABLED = "background compiler";
+
+	private static final String DEBUG_MODE_ENABLED = "debug";
+	private static final String DETAILED_ERROR = "detailed error";
+	private static final String INJECTION_METHOD = "injection method";
+
+	private static final String SCRIPT_ENGINE_NAME = "script engine";
+	private static final String SUPPRESSED_REPORTS = "suppressed reports";
+
+	private static final String UPDATER_NOTIFY = "notify";
+	private static final String UPDATER_DOWNLAD = "download";
+	private static final String UPDATER_DELAY = "delay";
+
+	// Defaults
+	private static final long DEFAULT_UPDATER_DELAY = 43200;
+
+	private Plugin plugin;
+	private Configuration config;
+	private boolean loadingSections;
+
+	private ConfigurationSection global;
+	private ConfigurationSection updater;
+
+	// Last update time
+	private long lastUpdateTime;
+	private boolean configChanged;
+	private boolean valuesChanged;
+
+	// Modifications
+	private int modCount;
+
+	public ProtocolConfig(Plugin plugin) {
+		this.plugin = plugin;
+		reloadConfig();
+	}
+
+	/**
+	 * Reload configuration file.
+	 */
+	public void reloadConfig() {
+		// Reset
+		configChanged = false;
+		valuesChanged = false;
+		modCount++;
+
+		this.config = plugin.getConfig();
+		this.lastUpdateTime = loadLastUpdate();
+		loadSections(!loadingSections);
+	}
+
+	/**
+	 * Load the last update time stamp from the file system.
+	 * 
+	 * @return Last update time stamp.
+	 */
+	private long loadLastUpdate() {
+		File dataFile = getLastUpdateFile();
+
+		if (dataFile.exists()) {
+			try {
+				return Long.parseLong(Files.toString(dataFile, Charsets.UTF_8));
+			} catch (NumberFormatException e) {
+				plugin.getLogger().warning("Cannot parse " + dataFile + " as a number.");
+			} catch (IOException e) {
+				plugin.getLogger().warning("Cannot read " + dataFile);
+			}
+		}
+		// Default last update
+		return 0;
+	}
+
+	/**
+	 * Store the given time stamp.
+	 * 
+	 * @param value - time stamp to store.
+	 */
+	private void saveLastUpdate(long value) {
+		File dataFile = getLastUpdateFile();
+
+		// The data folder must exist
+		dataFile.getParentFile().mkdirs();
+
+		if (dataFile.exists())
+			dataFile.delete();
+
+		try {
+			Files.write(Long.toString(value), dataFile, Charsets.UTF_8);
+		} catch (IOException e) {
+			throw new RuntimeException("Cannot write " + dataFile, e);
+		}
+	}
+
+	/**
+	 * Retrieve the file that is used to store the update time stamp.
+	 * 
+	 * @return File storing the update time stamp.
+	 */
+	private File getLastUpdateFile() {
+		return new File(plugin.getDataFolder(), LAST_UPDATE_FILE);
+	}
+
+	/**
+	 * Load data sections.
+	 * 
+	 * @param copyDefaults - whether or not to copy configuration defaults.
+	 */
+	private void loadSections(boolean copyDefaults) {
+		if (config != null) {
+			global = config.getConfigurationSection(SECTION_GLOBAL);
+		}
+		if (global != null) {
+			updater = global.getConfigurationSection(SECTION_AUTOUPDATER);
+			if (updater.getValues(true).isEmpty()) {
+				plugin.getLogger().warning("Updater section is missing, regenerate your config!");
+			}
+		}
+
+		// Automatically copy defaults
+		if (copyDefaults && (!getFile().exists() || global == null || updater == null)) {
+			loadingSections = true;
+
+			if (config != null)
+				config.options().copyDefaults(true);
+			plugin.saveDefaultConfig();
+			plugin.reloadConfig();
+			loadingSections = false;
+
+			// Inform the user
+			plugin.getLogger().info("Created default configuration.");
+		}
+	}
+
+	/**
+	 * Set a particular configuration key value pair.
+	 * 
+	 * @param section - the configuration root.
+	 * @param path - the path to the key.
+	 * @param value - the value to set.
+	 */
+	private void setConfig(ConfigurationSection section, String path, Object value) {
+		configChanged = true;
+		section.set(path, value);
+	}
+
+	@SuppressWarnings("unchecked")
+	private <T> T getGlobalValue(String path, T def) {
+		try {
+			return (T) global.get(path, def);
+		} catch (Throwable ex) {
+			return def;
+		}
+	}
+
+	@SuppressWarnings("unchecked")
+	private <T> T getUpdaterValue(String path, T def) {
+		try {
+			return (T) updater.get(path, def);
+		} catch (Throwable ex) {
+			return def;
+		}
+	}
+
+	/**
+	 * Retrieve a reference to the configuration file.
+	 * 
+	 * @return Configuration file on disk.
+	 */
+	public File getFile() {
+		return new File(plugin.getDataFolder(), "config.yml");
+	}
+
+	/**
+	 * Determine if detailed error reporting is enabled. Default FALSE.
+	 * 
+	 * @return TRUE if it is enabled, FALSE otherwise.
+	 */
+	public boolean isDetailedErrorReporting() {
+		return getGlobalValue(DETAILED_ERROR, false);
+	}
+
+	/**
+	 * Set whether or not detailed error reporting is enabled.
+	 * 
+	 * @param value - TRUE if it is enabled, FALSE otherwise.
+	 */
+	public void setDetailedErrorReporting(boolean value) {
+		global.set(DETAILED_ERROR, value);
+	}
+
+	/**
+	 * Retrieve whether or not ProtocolLib should determine if a new version has been released.
+	 * 
+	 * @return TRUE if it should do this automatically, FALSE otherwise.
+	 */
+	public boolean isAutoNotify() {
+		return getUpdaterValue(UPDATER_NOTIFY, true);
+	}
+
+	/**
+	 * Set whether or not ProtocolLib should determine if a new version has been released.
+	 * 
+	 * @param value - TRUE to do this automatically, FALSE otherwise.
+	 */
+	public void setAutoNotify(boolean value) {
+		setConfig(updater, UPDATER_NOTIFY, value);
+		modCount++;
+	}
+
+	/**
+	 * Retrieve whether or not ProtocolLib should automatically download the new version.
+	 * 
+	 * @return TRUE if it should, FALSE otherwise.
+	 */
+	public boolean isAutoDownload() {
+		return updater != null && getUpdaterValue(UPDATER_DOWNLAD, false);
+	}
+
+	/**
+	 * Set whether or not ProtocolLib should automatically download the new version.
+	 * 
+	 * @param value - TRUE if it should. FALSE otherwise.
+	 */
+	public void setAutoDownload(boolean value) {
+		setConfig(updater, UPDATER_DOWNLAD, value);
+		modCount++;
+	}
+
+	/**
+	 * Determine whether or not debug mode is enabled.
+	 * <p>
+	 * This grants access to the filter command.
+	 * 
+	 * @return TRUE if it is, FALSE otherwise.
+	 */
+	public boolean isDebug() {
+		return getGlobalValue(DEBUG_MODE_ENABLED, false);
+	}
+
+	/**
+	 * Set whether or not debug mode is enabled.
+	 * 
+	 * @param value - TRUE if it is enabled, FALSE otherwise.
+	 */
+	public void setDebug(boolean value) {
+		setConfig(global, DEBUG_MODE_ENABLED, value);
+		modCount++;
+	}
+
+	/**
+	 * Retrieve an immutable list of every suppressed report type.
+	 * 
+	 * @return Every suppressed report type.
+	 */
+	public ImmutableList<String> getSuppressedReports() {
+		return ImmutableList.copyOf(getGlobalValue(SUPPRESSED_REPORTS, new ArrayList<String>()));
+	}
+
+	/**
+	 * Set the list of suppressed report types,
+	 * 
+	 * @param reports - suppressed report types.
+	 */
+	public void setSuppressedReports(List<String> reports) {
+		global.set(SUPPRESSED_REPORTS, Lists.newArrayList(reports));
+		modCount++;
+	}
+
+	/**
+	 * Retrieve the amount of time to wait until checking for a new update.
+	 * 
+	 * @return The amount of time to wait.
+	 */
+	public long getAutoDelay() {
+		// Note that the delay must be greater than 59 seconds
+		return Math.max(getUpdaterValue(UPDATER_DELAY, 0), DEFAULT_UPDATER_DELAY);
+	}
+
+	/**
+	 * Set the amount of time to wait until checking for a new update.
+	 * <p>
+	 * This time must be greater than 59 seconds.
+	 * 
+	 * @param delaySeconds - the amount of time to wait.
+	 */
+	public void setAutoDelay(long delaySeconds) {
+		// Silently fix the delay
+		if (delaySeconds < DEFAULT_UPDATER_DELAY)
+			delaySeconds = DEFAULT_UPDATER_DELAY;
+		setConfig(updater, UPDATER_DELAY, delaySeconds);
+		modCount++;
+	}
+
+	/**
+	 * The version of Minecraft to ignore the built-in safety feature.
+	 * 
+	 * @return The version to ignore ProtocolLib's satefy.
+	 */
+	public String getIgnoreVersionCheck() {
+		return getGlobalValue(IGNORE_VERSION_CHECK, "");
+	}
+
+	/**
+	 * Sets under which version of Minecraft the version safety feature will be ignored.
+	 * <p>
+	 * This is useful if a server operator has tested and verified that a version of ProtocolLib works, but doesn't want or can't upgrade to a newer version.
+	 * 
+	 * @param ignoreVersion - the version of Minecraft where the satefy will be disabled.
+	 */
+	public void setIgnoreVersionCheck(String ignoreVersion) {
+		setConfig(global, IGNORE_VERSION_CHECK, ignoreVersion);
+		modCount++;
+	}
+
+	/**
+	 * Retrieve whether or not metrics is enabled.
+	 * 
+	 * @return TRUE if metrics is enabled, FALSE otherwise.
+	 */
+	public boolean isMetricsEnabled() {
+		return getGlobalValue(METRICS_ENABLED, true);
+	}
+
+	/**
+	 * Set whether or not metrics is enabled.
+	 * <p>
+	 * This setting will take effect next time ProtocolLib is started.
+	 * 
+	 * @param enabled - whether or not metrics is enabled.
+	 */
+	public void setMetricsEnabled(boolean enabled) {
+		setConfig(global, METRICS_ENABLED, enabled);
+		modCount++;
+	}
+
+	/**
+	 * Retrieve whether or not the background compiler for structure modifiers is enabled or not.
+	 * 
+	 * @return TRUE if it is enabled, FALSE otherwise.
+	 */
+	public boolean isBackgroundCompilerEnabled() {
+		return getGlobalValue(BACKGROUND_COMPILER_ENABLED, true);
+	}
+
+	/**
+	 * Set whether or not the background compiler for structure modifiers is enabled or not.
+	 * <p>
+	 * This setting will take effect next time ProtocolLib is started.
+	 * 
+	 * @param enabled - TRUE if is enabled/running, FALSE otherwise.
+	 */
+	public void setBackgroundCompilerEnabled(boolean enabled) {
+		setConfig(global, BACKGROUND_COMPILER_ENABLED, enabled);
+		modCount++;
+	}
+
+	/**
+	 * Retrieve the last time we updated, in seconds since 1970.01.01 00:00.
+	 * 
+	 * @return Last update time.
+	 */
+	public long getAutoLastTime() {
+		return lastUpdateTime;
+	}
+
+	/**
+	 * Set the last time we updated, in seconds since 1970.01.01 00:00.
+	 * <p>
+	 * Note that this is not considered to modify the configuration, so the modification count will not be incremented.
+	 * 
+	 * @param lastTimeSeconds - new last update time.
+	 */
+	public void setAutoLastTime(long lastTimeSeconds) {
+		this.valuesChanged = true;
+		this.lastUpdateTime = lastTimeSeconds;
+	}
+
+	/**
+	 * Retrieve the unique name of the script engine to use for filtering.
+	 * 
+	 * @return Script engine to use.
+	 */
+	public String getScriptEngineName() {
+		return getGlobalValue(SCRIPT_ENGINE_NAME, "JavaScript");
+	}
+
+	/**
+	 * Set the unique name of the script engine to use for filtering.
+	 * <p>
+	 * This setting will take effect next time ProtocolLib is started.
+	 * 
+	 * @param name - name of the script engine to use.
+	 */
+	public void setScriptEngineName(String name) {
+		setConfig(global, SCRIPT_ENGINE_NAME, name);
+		modCount++;
+	}
+
+	/**
+	 * Retrieve the default injection method.
+	 * 
+	 * @return Default method.
+	 */
+	public PlayerInjectHooks getDefaultMethod() {
+		return PlayerInjectHooks.NETWORK_SERVER_OBJECT;
+	}
+
+	/**
+	 * Retrieve the injection method that has been set in the configuration, or use a default value.
+	 * 
+	 * @return Injection method to use.
+	 * @throws IllegalArgumentException If the configuration option is malformed.
+	 */
+	public PlayerInjectHooks getInjectionMethod() throws IllegalArgumentException {
+		String text = global.getString(INJECTION_METHOD);
+
+		// Default hook if nothing has been set
+		PlayerInjectHooks hook = getDefaultMethod();
+
+		if (text != null)
+			hook = PlayerInjectHooks.valueOf(text.toUpperCase(Locale.ENGLISH).replace(" ", "_"));
+		return hook;
+	}
+
+	/**
+	 * Set the starting injection method to use.
+	 * 
+	 * @return Injection method.
+	 */
+	public void setInjectionMethod(PlayerInjectHooks hook) {
+		setConfig(global, INJECTION_METHOD, hook.name());
+		modCount++;
+	}
+
+	/**
+	 * Retrieve the number of modifications made to this configuration.
+	 * 
+	 * @return The number of modifications.
+	 */
+	public int getModificationCount() {
+		return modCount;
+	}
+
+	/**
+	 * Save the current configuration file.
+	 */
+	public void saveAll() {
+		if (valuesChanged)
+			saveLastUpdate(lastUpdateTime);
+		if (configChanged)
+			plugin.saveConfig();
+
+		// And we're done
+		valuesChanged = false;
+		configChanged = false;
+	}
+}

src/main/java/com/comphenix/protocol/ProtocolLib.java

@@ -0,0 +1,661 @@
+/**
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+package com.comphenix.protocol;
+
+import java.io.File;
+import java.io.IOException;
+import java.util.Set;
+import java.util.logging.Handler;
+import java.util.logging.Level;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import org.bukkit.Server;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.PluginCommand;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.PluginManager;
+import org.bukkit.plugin.java.JavaPlugin;
+
+import com.comphenix.executors.BukkitExecutors;
+import com.comphenix.protocol.async.AsyncFilterManager;
+import com.comphenix.protocol.error.BasicErrorReporter;
+import com.comphenix.protocol.error.DelegatedErrorReporter;
+import com.comphenix.protocol.error.DetailedErrorReporter;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.error.Report;
+import com.comphenix.protocol.error.ReportType;
+import com.comphenix.protocol.injector.DelayedSingleTask;
+import com.comphenix.protocol.injector.InternalManager;
+import com.comphenix.protocol.injector.PacketFilterManager;
+import com.comphenix.protocol.injector.PlayerInjectHooks;
+import com.comphenix.protocol.metrics.Statistics;
+import com.comphenix.protocol.reflect.compiler.BackgroundCompiler;
+import com.comphenix.protocol.updater.Updater;
+import com.comphenix.protocol.updater.Updater.UpdateType;
+import com.comphenix.protocol.utility.ChatExtensions;
+import com.comphenix.protocol.utility.EnhancerFactory;
+import com.comphenix.protocol.utility.MinecraftVersion;
+import com.google.common.base.Splitter;
+import com.google.common.collect.Iterables;
+import com.google.common.collect.Sets;
+import com.google.common.util.concurrent.ListeningScheduledExecutorService;
+
+/**
+ * The main entry point for ProtocolLib.
+ *
+ * @author Kristian
+ */
+public class ProtocolLib extends JavaPlugin {
+	// Every possible error or warning report type
+	public static final ReportType REPORT_CANNOT_LOAD_CONFIG = new ReportType("Cannot load configuration");
+	public static final ReportType REPORT_CANNOT_DELETE_CONFIG = new ReportType("Cannot delete old ProtocolLib configuration.");
+	public static final ReportType REPORT_CANNOT_PARSE_INJECTION_METHOD = new ReportType("Cannot parse injection method. Using default.");
+
+	public static final ReportType REPORT_PLUGIN_LOAD_ERROR = new ReportType("Cannot load ProtocolLib.");
+	public static final ReportType REPORT_PLUGIN_ENABLE_ERROR = new ReportType("Cannot enable ProtocolLib.");
+
+	public static final ReportType REPORT_METRICS_IO_ERROR = new ReportType("Unable to enable metrics due to network problems.");
+	public static final ReportType REPORT_METRICS_GENERIC_ERROR = new ReportType("Unable to enable metrics due to network problems.");
+
+	public static final ReportType REPORT_CANNOT_PARSE_MINECRAFT_VERSION = new ReportType("Unable to retrieve current Minecraft version. Assuming %s");
+	public static final ReportType REPORT_CANNOT_DETECT_CONFLICTING_PLUGINS = new ReportType("Unable to detect conflicting plugin versions.");
+	public static final ReportType REPORT_CANNOT_REGISTER_COMMAND = new ReportType("Cannot register command %s: %s");
+
+	public static final ReportType REPORT_CANNOT_CREATE_TIMEOUT_TASK = new ReportType("Unable to create packet timeout task.");
+	public static final ReportType REPORT_CANNOT_UPDATE_PLUGIN = new ReportType("Cannot perform automatic updates.");
+
+	// Update information
+	static final String BUKKIT_DEV_SLUG = "protocollib";
+	static final int BUKKIT_DEV_ID = 45564;
+
+	// Different commands
+	private enum ProtocolCommand {
+		FILTER,
+		PACKET,
+		PROTOCOL,
+		LOGGING;
+	}
+
+	/**
+	 * The number of milliseconds per second.
+	 */
+	static final long MILLI_PER_SECOND = 1000;
+
+	private static final String PERMISSION_INFO = "protocol.info";
+
+	// There should only be one protocol manager, so we'll make it static
+	private static InternalManager protocolManager;
+
+	// Error reporter
+	private static ErrorReporter reporter = new BasicErrorReporter();
+
+	// Strongly typed configuration
+	private static ProtocolConfig config;
+
+	// Metrics and statistics
+	private Statistics statistics;
+
+	// Executors
+	private static ListeningScheduledExecutorService executorAsync;
+	private static ListeningScheduledExecutorService executorSync;
+
+	// Structure compiler
+	private BackgroundCompiler backgroundCompiler;
+
+	// Used to clean up server packets that have expired, but mostly required to simulate
+	// recieving client packets.
+	private int packetTask = -1;
+	private int tickCounter = 0;
+	private static final int ASYNC_MANAGER_DELAY = 1;
+
+	// Used to unhook players after a delay
+	private DelayedSingleTask unhookTask;
+
+	// Settings/options
+	private int configExpectedMod = -1;
+
+	// Updater
+	private Updater updater;
+	public static boolean UPDATES_DISABLED;
+
+	// Logger
+	private static Logger logger;
+	private Handler redirectHandler;
+
+	// Commands
+	private CommandProtocol commandProtocol;
+	private CommandPacket commandPacket;
+	private CommandFilter commandFilter;
+	private PacketLogging packetLogging;
+
+	// Whether or not disable is not needed
+	private boolean skipDisable;
+
+	@Override
+	public void onLoad() {
+		// Logging
+		logger = getLogger();
+		ProtocolLogger.init(this);
+
+		// Initialize enhancer factory
+		EnhancerFactory.getInstance().setClassLoader(getClassLoader());
+
+		// Initialize executors
+		executorAsync = BukkitExecutors.newAsynchronous(this);
+		executorSync = BukkitExecutors.newSynchronous(this);
+
+		// Add global parameters
+		DetailedErrorReporter detailedReporter = new DetailedErrorReporter(this);
+		reporter = getFilteredReporter(detailedReporter);
+
+		// Configuration
+		saveDefaultConfig();
+		reloadConfig();
+
+		try {
+			config = new ProtocolConfig(this);
+		} catch (Exception e) {
+			reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_LOAD_CONFIG).error(e));
+
+			// Load it again
+			if (deleteConfig()) {
+				config = new ProtocolConfig(this);
+			} else {
+				reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_DELETE_CONFIG));
+			}
+		}
+
+		// Print the state of the debug mode
+		if (config.isDebug()) {
+			logger.warning("Debug mode is enabled!");
+		}
+		// And the state of the error reporter
+		if (config.isDetailedErrorReporting()) {
+			detailedReporter.setDetailedReporting(true);
+			logger.warning("Detailed error reporting enabled!");
+		}
+
+		try {
+			// Check for other versions
+			checkConflictingVersions();
+
+			// Handle unexpected Minecraft versions
+			MinecraftVersion version = verifyMinecraftVersion();
+
+			// Set updater - this will not perform any update automatically
+			updater = Updater.create(this, BUKKIT_DEV_ID, getFile(), UpdateType.NO_DOWNLOAD, true);
+
+			unhookTask = new DelayedSingleTask(this);
+			protocolManager = PacketFilterManager.newBuilder()
+					.classLoader(getClassLoader())
+					.server(getServer())
+					.library(this)
+					.minecraftVersion(version)
+					.unhookTask(unhookTask)
+					.reporter(reporter)
+					.build();
+
+			// Initialize the API
+			ProtocolLibrary.init(this, config, protocolManager, reporter, executorAsync, executorSync);
+
+			// Setup error reporter
+			detailedReporter.addGlobalParameter("manager", protocolManager);
+
+			// Update injection hook
+			try {
+				PlayerInjectHooks hook = config.getInjectionMethod();
+
+				// Only update the hook if it's different
+				if (!protocolManager.getPlayerHook().equals(hook)) {
+					logger.info("Changing player hook from " + protocolManager.getPlayerHook() + " to " + hook);
+					protocolManager.setPlayerHook(hook);
+				}
+			} catch (IllegalArgumentException e) {
+				reporter.reportWarning(config, Report.newBuilder(REPORT_CANNOT_PARSE_INJECTION_METHOD).error(e));
+			}
+
+			// Send logging information to player listeners too
+			initializeCommands();
+			setupBroadcastUsers(PERMISSION_INFO);
+
+		} catch (OutOfMemoryError e) {
+			throw e;
+		} catch (Throwable e) {
+			reporter.reportDetailed(this, Report.newBuilder(REPORT_PLUGIN_LOAD_ERROR).error(e).callerParam(protocolManager));
+			disablePlugin();
+		}
+	}
+
+	/**
+	 * Initialize all command handlers.
+	 */
+	private void initializeCommands() {
+		// Initialize command handlers
+		for (ProtocolCommand command : ProtocolCommand.values()) {
+			try {
+				switch (command) {
+				case PROTOCOL:
+					commandProtocol = new CommandProtocol(reporter, this, updater, config);
+					break;
+				case FILTER:
+					commandFilter = new CommandFilter(reporter, this, config);
+					break;
+				case PACKET:
+					commandPacket = new CommandPacket(reporter, this, logger, commandFilter, protocolManager);
+					break;
+				case LOGGING:
+					packetLogging = new PacketLogging(this, protocolManager);
+					break;
+				}
+			} catch (OutOfMemoryError e) {
+				throw e;
+			} catch (LinkageError e) {
+				logger.warning("Failed to register command " + command.name() + ": " + e);
+			} catch (Throwable e) {
+				reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_REGISTER_COMMAND)
+						.messageParam(command.name(), e.getMessage()).error(e));
+			}
+		}
+	}
+
+	/**
+	 * Retrieve a error reporter that may be filtered by the configuration.
+	 * @return The new default error reporter.
+	 */
+	private ErrorReporter getFilteredReporter(ErrorReporter reporter) {
+		return new DelegatedErrorReporter(reporter) {
+			private int lastModCount = -1;
+			private Set<String> reports = Sets.newHashSet();
+
+			@Override
+			protected Report filterReport(Object sender, Report report, boolean detailed) {
+				try {
+					String canonicalName = ReportType.getReportName(sender, report.getType());
+					String reportName = Iterables.getLast(Splitter.on("#").split(canonicalName)).toUpperCase();
+
+					if (config != null && config.getModificationCount() != lastModCount) {
+						// Update our cached set again
+						reports = Sets.newHashSet(config.getSuppressedReports());
+						lastModCount = config.getModificationCount();
+					}
+
+					// Cancel reports either on the full canonical name, or just the report name
+					if (reports.contains(canonicalName) || reports.contains(reportName))
+						return null;
+
+				} catch (Exception e) {
+					// Only report this with a minor message
+					logger.warning("Error filtering reports: " + e.toString());
+				}
+				// Don't filter anything
+				return report;
+			}
+		};
+	}
+
+	private boolean deleteConfig() {
+		return config.getFile().delete();
+	}
+
+	@Override
+	public void reloadConfig() {
+		super.reloadConfig();
+
+		// Reload configuration
+		if (config != null) {
+			config.reloadConfig();
+		}
+	}
+
+	private void setupBroadcastUsers(final String permission) {
+		// Guard against multiple calls
+		if (redirectHandler != null)
+			return;
+
+		// Broadcast information to every user too
+		redirectHandler = new Handler() {
+			@Override
+			public void publish(LogRecord record) {
+				// Only display warnings and above
+				if (record.getLevel().intValue() >= Level.WARNING.intValue()) {
+					commandPacket.broadcastMessageSilently(record.getMessage(), permission);
+				}
+			}
+
+			@Override
+			public void flush() {
+				// Not needed.
+			}
+
+			@Override
+			public void close() throws SecurityException {
+				// Do nothing.
+			}
+		};
+
+		logger.addHandler(redirectHandler);
+	}
+
+	@Override
+	public void onEnable() {
+		try {
+			Server server = getServer();
+			PluginManager manager = server.getPluginManager();
+
+			// Don't do anything else!
+			if (manager == null)
+				return;
+
+			// Silly plugin reloaders!
+			if (protocolManager == null) {
+				Logger directLogging = Logger.getLogger("Minecraft");
+				String[] message = new String[] {
+						" ProtocolLib does not support plugin reloaders! ", " Please use the built-in reload command! "
+				};
+
+				// Print as severe
+				for (String line : ChatExtensions.toFlowerBox(message, "*", 3, 1)) {
+					directLogging.severe(line);
+				}
+
+				disablePlugin();
+				return;
+			}
+
+			// Check for incompatible plugins
+			checkForIncompatibility(manager);
+
+			// Initialize background compiler
+			if (backgroundCompiler == null && config.isBackgroundCompilerEnabled()) {
+				backgroundCompiler = new BackgroundCompiler(getClassLoader(), reporter);
+				BackgroundCompiler.setInstance(backgroundCompiler);
+
+				logger.info("Started structure compiler thread.");
+			} else {
+				logger.info("Structure compiler thread has been disabled.");
+			}
+
+			// Set up command handlers
+			registerCommand(CommandProtocol.NAME, commandProtocol);
+			registerCommand(CommandPacket.NAME, commandPacket);
+			registerCommand(CommandFilter.NAME, commandFilter);
+			registerCommand(PacketLogging.NAME, packetLogging);
+
+			// Player login and logout events
+			protocolManager.registerEvents(manager, this);
+
+			// Worker that ensures that async packets are eventually sent
+			// It also performs the update check.
+			createPacketTask(server);
+		} catch (OutOfMemoryError e) {
+			throw e;
+		} catch (Throwable e) {
+			reporter.reportDetailed(this, Report.newBuilder(REPORT_PLUGIN_ENABLE_ERROR).error(e));
+			disablePlugin();
+			return;
+		}
+
+		// Try to enable statistics
+		try {
+			if (config.isMetricsEnabled()) {
+				statistics = new Statistics(this);
+			}
+		} catch (OutOfMemoryError e) {
+			throw e;
+		} catch (IOException e) {
+			reporter.reportDetailed(this, Report.newBuilder(REPORT_METRICS_IO_ERROR).error(e).callerParam(statistics));
+		} catch (Throwable e) {
+			reporter.reportDetailed(this, Report.newBuilder(REPORT_METRICS_GENERIC_ERROR).error(e).callerParam(statistics));
+		}
+	}
+
+	// Plugin authors: Notify me to remove these
+
+	private void checkForIncompatibility(PluginManager manager) {
+		for (String plugin : ProtocolLibrary.INCOMPATIBLE) {
+			if (manager.getPlugin(plugin) != null) {
+				// Special case for TagAPI and iTag
+				if (plugin.equals("TagAPI")) {
+					Plugin iTag = manager.getPlugin("iTag");
+					if (iTag == null || iTag.getDescription().getVersion().startsWith("1.0")) {
+						logger.severe("Detected incompatible plugin: TagAPI");
+					}
+				} else {
+					logger.severe("Detected incompatible plugin: " + plugin);
+				}
+			}
+		}
+	}
+
+	// Used to check Minecraft version
+	private MinecraftVersion verifyMinecraftVersion() {
+		MinecraftVersion minimum = new MinecraftVersion(ProtocolLibrary.MINIMUM_MINECRAFT_VERSION);
+		MinecraftVersion maximum = new MinecraftVersion(ProtocolLibrary.MAXIMUM_MINECRAFT_VERSION);
+
+		try {
+			MinecraftVersion current = new MinecraftVersion(getServer());
+
+			// Skip certain versions
+			if (!config.getIgnoreVersionCheck().equals(current.getVersion())) {
+				// We'll just warn the user for now
+				if (current.compareTo(minimum) < 0)
+					logger.warning("Version " + current + " is lower than the minimum " + minimum);
+				if (current.compareTo(maximum) > 0)
+					logger.warning("Version " + current + " has not yet been tested! Proceed with caution.");
+			}
+
+			return current;
+		} catch (Exception e) {
+			reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_PARSE_MINECRAFT_VERSION).error(e).messageParam(maximum));
+
+			// Unknown version - just assume it is the latest
+			return maximum;
+		}
+	}
+
+	private void checkConflictingVersions() {
+		Pattern ourPlugin = Pattern.compile("ProtocolLib-(.*)\\.jar");
+		MinecraftVersion currentVersion = new MinecraftVersion(getDescription().getVersion());
+		MinecraftVersion newestVersion = null;
+
+		// Skip the file that contains this current instance however
+		File loadedFile = getFile();
+
+		try {
+			// Scan the plugin folder for newer versions of ProtocolLib
+			// The plugin folder isn't always plugins/
+			File pluginFolder = getDataFolder().getParentFile();
+
+			File[] candidates = pluginFolder.listFiles();
+			if (candidates != null) {
+				for (File candidate : candidates) {
+					if (candidate.isFile() && !candidate.equals(loadedFile)) {
+						Matcher match = ourPlugin.matcher(candidate.getName());
+						if (match.matches()) {
+							MinecraftVersion version = new MinecraftVersion(match.group(1));
+
+							if (candidate.length() == 0) {
+								// Delete and inform the user
+								logger.info((candidate.delete() ? "Deleted " : "Could not delete ") + candidate);
+							} else if (newestVersion == null || newestVersion.compareTo(version) < 0) {
+								newestVersion = version;
+							}
+						}
+					}
+				}
+			}
+		} catch (Exception e) {
+			// TODO This shows [ProtocolLib] and [ProtocolLibrary] in the message
+			reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_DETECT_CONFLICTING_PLUGINS).error(e));
+		}
+
+		// See if the newest version is actually higher
+		if (newestVersion != null && currentVersion.compareTo(newestVersion) < 0) {
+			// We don't need to set internal classes or instances to NULL - that would break the other loaded plugin
+			skipDisable = true;
+
+			throw new IllegalStateException(String.format(
+					"Detected a newer version of ProtocolLib (%s) in plugin folder than the current (%s). Disabling.",
+					newestVersion.getVersion(), currentVersion.getVersion()));
+		}
+	}
+
+	private void registerCommand(String name, CommandExecutor executor) {
+		try {
+			// Ignore these - they must have printed an error already
+			if (executor == null)
+				return;
+
+			PluginCommand command = getCommand(name);
+
+			// Try to load the command
+			if (command != null) {
+				command.setExecutor(executor);
+			} else {
+				throw new RuntimeException("plugin.yml might be corrupt.");
+			}
+		} catch (RuntimeException e) {
+			reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_REGISTER_COMMAND).messageParam(name, e.getMessage()).error(e));
+		}
+	}
+
+	/**
+	 * Disable the current plugin.
+	 */
+	private void disablePlugin() {
+		getServer().getPluginManager().disablePlugin(this);
+	}
+
+	private void createPacketTask(Server server) {
+		try {
+			if (packetTask >= 0)
+				throw new IllegalStateException("Packet task has already been created");
+
+			// Attempt to create task
+			packetTask = server.getScheduler().scheduleSyncRepeatingTask(this, new Runnable() {
+				@Override
+				public void run() {
+					AsyncFilterManager manager = (AsyncFilterManager) protocolManager.getAsynchronousManager();
+
+					// We KNOW we're on the main thread at the moment
+					manager.sendProcessedPackets(tickCounter++, true);
+
+					// House keeping
+					updateConfiguration();
+
+					// Check for updates too
+					if (!UPDATES_DISABLED && (tickCounter % 20) == 0) {
+						checkUpdates();
+					}
+				}
+			}, ASYNC_MANAGER_DELAY, ASYNC_MANAGER_DELAY);
+		} catch (OutOfMemoryError e) {
+			throw e;
+		} catch (Throwable e) {
+			if (packetTask == -1) {
+				reporter.reportDetailed(this, Report.newBuilder(REPORT_CANNOT_CREATE_TIMEOUT_TASK).error(e));
+			}
+		}
+	}
+
+	private void updateConfiguration() {
+		if (config != null && config.getModificationCount() != configExpectedMod) {
+			configExpectedMod = config.getModificationCount();
+
+			// Update the debug flag
+			protocolManager.setDebug(config.isDebug());
+		}
+	}
+
+	private void checkUpdates() {
+		// Ignore milliseconds - it's pointless
+		long currentTime = System.currentTimeMillis() / MILLI_PER_SECOND;
+		
+		try {
+			long updateTime = config.getAutoLastTime() + config.getAutoDelay();
+
+			// Should we update?
+			if (currentTime > updateTime && !updater.isChecking()) {
+				// Initiate the update as if it came from the console
+				if (config.isAutoDownload())
+					commandProtocol.updateVersion(getServer().getConsoleSender(), false);
+				else if (config.isAutoNotify())
+					commandProtocol.checkVersion(getServer().getConsoleSender(), false);
+				else
+					commandProtocol.updateFinished();
+			}
+		} catch (Exception e) {
+			reporter.reportDetailed(this, Report.newBuilder(REPORT_CANNOT_UPDATE_PLUGIN).error(e));
+			UPDATES_DISABLED = true;
+		}
+	}
+
+	@Override
+	public void onDisable() {
+		if (skipDisable) {
+			return;
+		}
+
+		// Disable compiler
+		if (backgroundCompiler != null) {
+			backgroundCompiler.shutdownAll();
+			backgroundCompiler = null;
+			BackgroundCompiler.setInstance(null);
+		}
+
+		// Clean up
+		if (packetTask >= 0) {
+			getServer().getScheduler().cancelTask(packetTask);
+			packetTask = -1;
+		}
+
+		// And redirect handler too
+		if (redirectHandler != null) {
+			logger.removeHandler(redirectHandler);
+		}
+		if (protocolManager != null)
+			protocolManager.close();
+		else
+			return; // Plugin reloaders!
+
+		if (unhookTask != null)
+			unhookTask.close();
+		protocolManager = null;
+		statistics = null;
+
+		// To clean up global parameters
+		reporter = new BasicErrorReporter();
+	}
+
+	/**
+	 * Retrieve the metrics instance used to measure users of this library.
+	 * <p>
+	 * Note that this method may return NULL when the server is reloading or shutting down. It is also
+	 * NULL if metrics has been disabled.
+	 * @return Metrics instance container.
+	 */
+	public Statistics getStatistics() {
+		return statistics;
+	}
+
+	public ProtocolConfig getProtocolConfig() {
+		return config;
+	}
+}

src/main/java/com/comphenix/protocol/ProtocolLibrary.java

@@ -0,0 +1,143 @@
+/**
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2016 dmulloy2
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+package com.comphenix.protocol;
+
+import java.util.Arrays;
+import java.util.List;
+
+import org.apache.commons.lang.Validate;
+import org.bukkit.plugin.Plugin;
+
+import com.comphenix.protocol.error.BasicErrorReporter;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.google.common.util.concurrent.ListeningScheduledExecutorService;
+
+/**
+ * The main entry point for ProtocolLib.
+ * @author dmulloy2
+ */
+public class ProtocolLibrary {
+	/**
+	 * The minimum version ProtocolLib has been tested with.
+	 */
+	public static final String MINIMUM_MINECRAFT_VERSION = "1.8";
+
+	/**
+	 * The maximum version ProtocolLib has been tested with.
+	 */
+	public static final String MAXIMUM_MINECRAFT_VERSION = "1.15.1";
+
+	/**
+	 * The date (with ISO 8601 or YYYY-MM-DD) when the most recent version (1.14.4) was released.
+	 */
+	public static final String MINECRAFT_LAST_RELEASE_DATE = "2019-12-17";
+
+	/**
+	 * Plugins that are currently incompatible with ProtocolLib.
+	 */
+	public static final List<String> INCOMPATIBLE = Arrays.asList("TagAPI");
+
+	private static Plugin plugin;
+	private static ProtocolConfig config;
+	private static ProtocolManager manager;
+	private static ErrorReporter reporter = new BasicErrorReporter();
+
+	private static ListeningScheduledExecutorService executorAsync;
+	private static ListeningScheduledExecutorService executorSync;
+
+	private static boolean updatesDisabled;
+	private static boolean initialized;
+
+	protected static void init(Plugin plugin, ProtocolConfig config, ProtocolManager manager, ErrorReporter reporter,
+			ListeningScheduledExecutorService executorAsync, ListeningScheduledExecutorService executorSync) {
+		Validate.isTrue(!initialized, "ProtocolLib has already been initialized.");
+		ProtocolLibrary.plugin = plugin;
+		ProtocolLibrary.config = config;
+		ProtocolLibrary.manager = manager;
+		ProtocolLibrary.reporter = reporter;
+		ProtocolLibrary.executorAsync = executorAsync;
+		ProtocolLibrary.executorSync = executorSync;
+		initialized = true;
+	}
+
+	/**
+	 * Gets the ProtocolLib plugin instance.
+	 * @return The plugin instance
+	 */
+	public static Plugin getPlugin() {
+		return plugin;
+	}
+
+	/**
+	 * Gets ProtocolLib's configuration
+	 * @return The config
+	 */
+	public static ProtocolConfig getConfig() {
+		return config;
+	}
+
+	/**
+	 * Retrieves the packet protocol manager.
+	 * @return Packet protocol manager
+	 */
+	public static ProtocolManager getProtocolManager() {
+		return manager;
+	}
+
+	/**
+	 * Retrieve the current error reporter.
+	 * @return Current error reporter.
+	 */
+	public static ErrorReporter getErrorReporter() {
+		return reporter;
+	}
+
+	/**
+	 * Retrieve an executor service for performing asynchronous tasks on the behalf of ProtocolLib.
+	 * <p>
+	 * Note that this service is NULL if ProtocolLib has not been initialized yet.
+	 * @return The executor service, or NULL.
+	 */
+	public static ListeningScheduledExecutorService getExecutorAsync() {
+		return executorAsync;
+	}
+
+	/**
+	 * Retrieve an executor service for performing synchronous tasks (main thread) on the behalf of ProtocolLib.
+	 * <p>
+	 * Note that this service is NULL if ProtocolLib has not been initialized yet.
+	 * @return The executor service, or NULL.
+	 */
+	public static ListeningScheduledExecutorService getExecutorSync() {
+		return executorSync;
+	}
+
+	/**
+	 * Disables the ProtocolLib update checker.
+	 */
+	public static void disableUpdates() {
+		updatesDisabled = true;
+	}
+
+	/**
+	 * Whether or not updates are currently disabled.
+	 * @return True if it is, false if not
+	 */
+	public static boolean updatesDisabled() {
+		return updatesDisabled;
+	}
+}

src/main/java/com/comphenix/protocol/ProtocolLogger.java

@@ -0,0 +1,85 @@
+/**
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2016 dmulloy2
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+package com.comphenix.protocol;
+
+import java.text.MessageFormat;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import org.bukkit.plugin.Plugin;
+
+/**
+ * @author dmulloy2
+ */
+public class ProtocolLogger {
+	private static boolean debugEnabled = false;
+	private static Logger logger = Logger.getLogger("Minecraft");
+
+	/**
+	 * Don't call this method from any plugin. Currently only public to test if it fixes a weird error.
+	 * See GH-740
+	 * @param plugin ProtocolLib
+	 */
+	public static void init(ProtocolLib plugin) {
+		logger = plugin.getLogger();
+
+		try {
+			debugEnabled = plugin.getConfig().getBoolean("global.debug", false);
+		} catch (Throwable ignored) { }
+	}
+
+	/**
+	 * Logs a message to console with a given level.
+	 * @param level Logging level
+	 * @param message Message to log
+	 * @param args Arguments to format in
+	 */
+	public static void log(Level level, String message, Object... args) {
+		logger.log(level, MessageFormat.format(message, args));
+	}
+
+	/**
+	 * Logs a method to console with the INFO level.
+	 * @param message Message to log
+	 * @param args Arguments to format in
+	 */
+	public static void log(String message, Object... args) {
+		log(Level.INFO, message, args);
+	}
+
+	/**
+	 * Logs a message to console with a given level and exception.
+	 * @param level Logging level
+	 * @param message Message to log
+	 * @param ex Exception to log
+	 */
+	public static void log(Level level, String message, Throwable ex) {
+		logger.log(level, message, ex);
+	}
+
+	public static void debug(String message, Object... args) {
+		if (debugEnabled) {
+			log("[Debug] " + message, args);
+		}
+	}
+
+	public static void debug(String message, Throwable ex) {
+		if (debugEnabled) {
+			logger.log(Level.WARNING, "[Debug] " + message, ex);
+		}
+	}
+}

src/main/java/com/comphenix/protocol/ProtocolManager.java

@@ -0,0 +1,285 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol;
+
+import java.lang.reflect.InvocationTargetException;
+import java.util.List;
+import java.util.Set;
+
+import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+
+import com.comphenix.protocol.async.AsyncMarker;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.PacketContainer;
+import com.comphenix.protocol.events.PacketListener;
+import com.comphenix.protocol.injector.PacketConstructor;
+import com.comphenix.protocol.reflect.FieldAccessException;
+import com.comphenix.protocol.utility.MinecraftVersion;
+import com.google.common.collect.ImmutableSet;
+
+/**
+ * Represents an API for accessing the Minecraft protocol.
+ * @author Kristian
+ */
+public interface ProtocolManager extends PacketStream {
+	/**
+	 * Retrieve the protocol version of a given player.
+	 * <p>
+	 * This only really makes sense of a server that support clients of multiple Minecraft versions, such as Spigot #1628.
+	 * @param player - the player.
+	 * @return The associated protocol version, or {@link Integer#MIN_VALUE} if unknown.
+	 */
+	public int getProtocolVersion(Player player);
+	
+	/**
+	 * Send a packet to the given player.
+	 * <p>
+	 * Re-sending a previously cancelled packet is discouraged. Use {@link AsyncMarker#incrementProcessingDelay()}
+	 * to delay a packet until a certain condition has been met.
+	 * 
+	 * @param receiver - the receiver.
+	 * @param packet - packet to send.
+	 * @param filters - whether or not to invoke any packet filters below {@link ListenerPriority#MONITOR}.
+	 * @throws InvocationTargetException - if an error occurred when sending the packet.
+	 */
+	@Override
+	public void sendServerPacket(Player receiver, PacketContainer packet, boolean filters)
+			throws InvocationTargetException;
+	
+	/**
+	 * Simulate receiving a certain packet from a given player.
+	 * <p>
+	 * Receiving a previously cancelled packet is discouraged. Use {@link AsyncMarker#incrementProcessingDelay()}
+	 * to delay a packet until a certain condition has been met.
+	 * 
+	 * @param sender - the sender.
+	 * @param packet - the packet that was sent.
+	 * @param filters - whether or not to invoke any packet filters below {@link ListenerPriority#MONITOR}.
+	 * @throws InvocationTargetException If the reflection machinery failed.
+	 * @throws IllegalAccessException If the underlying method caused an error.
+	 */
+	@Override
+	public void recieveClientPacket(Player sender, PacketContainer packet, boolean filters)
+			throws IllegalAccessException, InvocationTargetException;
+	
+	/**
+	 * Broadcast a given packet to every connected player on the server.
+	 * @param packet - the packet to broadcast.
+	 * @throws FieldAccessException If we were unable to send the packet due to reflection problems.
+	 */
+	public void broadcastServerPacket(PacketContainer packet);
+	
+	/**
+	 * Broadcast a packet to every player that is receiving information about a given entity.
+	 * <p>
+	 * This is usually every player in the same world within an observable distance. If the entity is a
+	 * player, it will only be included if <i>includeTracker</i> is TRUE.
+	 * @param packet - the packet to broadcast.
+	 * @param entity - the entity whose trackers we will inform.
+	 * @param includeTracker - whether or not to also transmit the packet to the entity, if it is a tracker.
+	 * @throws FieldAccessException If we were unable to send the packet due to reflection problems.
+	 */
+	public void broadcastServerPacket(PacketContainer packet, Entity entity, boolean includeTracker);
+	
+	/**
+	 * Broadcast a packet to every player within the given maximum observer distance.
+	 * @param packet - the packet to broadcast.
+	 * @param origin - the origin to consider when calculating the distance to each observer.
+	 * @param maxObserverDistance - the maximum distance to the origin.
+	 */
+	public void broadcastServerPacket(PacketContainer packet, Location origin, int maxObserverDistance);
+	
+	/**
+	 * Retrieves a list of every registered packet listener.
+	 * @return Every registered packet listener.
+	 */
+	public ImmutableSet<PacketListener> getPacketListeners();
+
+	/**
+	 * Adds a packet listener.
+	 * <p>
+	 * Adding an already registered listener has no effect. If you need to change the packets
+	 * the current listener is observing, you must first remove the packet listener before you
+	 * can register it again.
+	 * @param listener - new packet listener.
+	 */
+	public void addPacketListener(PacketListener listener);
+
+	/**
+	 * Removes a given packet listener.
+	 * <p>
+	 * Attempting to remove a listener that doesn't exist has no effect.
+	 * @param listener - the packet listener to remove.
+	 */
+	public void removePacketListener(PacketListener listener);
+
+	/**
+	 * Removes every listener associated with the given plugin.
+	 * @param plugin - the plugin to unload.
+	 */
+	public void removePacketListeners(Plugin plugin);
+
+	/**
+	 * Constructs a new encapsulated Minecraft packet with the given ID.
+	 * <p>
+	 * Deprecated: Use {@link #createPacket(PacketType)} instead.
+	 * @param id - packet ID.
+	 * @return New encapsulated Minecraft packet.
+	 */
+	@Deprecated
+	public PacketContainer createPacket(int id);
+	
+	/**
+	 * Constructs a new encapsulated Minecraft packet with the given ID.
+	 * @param  type - packet  type.
+	 * @return New encapsulated Minecraft packet.
+	 */
+	public PacketContainer createPacket(PacketType type);
+	
+	/**
+	 * Constructs a new encapsulated Minecraft packet with the given ID.
+	 * <p>
+	 * If set to true, the <i>forceDefaults</i> option will force the system to automatically
+	 * give non-primitive fields in the packet sensible default values. For instance, certain
+	 * packets - like Packet60Explosion - require a List or Set to be non-null. If the
+	 * forceDefaults option is true, the List or Set will be automatically created.
+	 * <p>
+	 * Deprecated: Use {@link #createPacket(PacketType, boolean)} instead.
+	 * 
+	 * @param id - packet ID.
+	 * @param forceDefaults - TRUE to use sensible defaults in most fields, FALSE otherwise.
+	 * @return New encapsulated Minecraft packet.
+	 */
+	@Deprecated
+	public PacketContainer createPacket(int id, boolean forceDefaults);
+	
+	/**
+	 * Constructs a new encapsulated Minecraft packet with the given ID.
+	 * <p>
+	 * If set to true, the <i>forceDefaults</i> option will force the system to automatically
+	 * give non-primitive fields in the packet sensible default values. For instance, certain
+	 * packets - like Packet60Explosion - require a List or Set to be non-null. If the
+	 * forceDefaults option is true, the List or Set will be automatically created.
+	 * 
+	 * @param type - packet type.
+	 * @param forceDefaults - TRUE to use sensible defaults in most fields, FALSE otherwise.
+	 * @return New encapsulated Minecraft packet.
+	 */
+	public PacketContainer createPacket(PacketType type, boolean forceDefaults);
+
+	/**
+	 * Construct a packet using the special builtin Minecraft constructors.
+	 * <p>
+	 * Deprecated: Use {@link #createPacketConstructor(PacketType, Object...)} instead.
+	 * @param id - the packet ID.
+	 * @param arguments - arguments that will be passed to the constructor.
+	 * @return The packet constructor.
+	 */
+	@Deprecated
+	public PacketConstructor createPacketConstructor(int id, Object... arguments);
+	
+	/**
+	 * Construct a packet using the special builtin Minecraft constructors.
+	 * @param type - the packet type.
+	 * @param arguments - arguments that will be passed to the constructor.
+	 * @return The packet constructor.
+	 */
+	public PacketConstructor createPacketConstructor(PacketType type, Object... arguments);
+	
+	/**
+	 * Completely resend an entity to a list of clients.
+	 * <p>
+	 * Note that this method is NOT thread safe. If you call this method from anything
+	 * but the main thread, it will throw an exception.
+	 * @param entity - entity to refresh.
+	 * @param observers - the clients to update.
+	 */
+	public void updateEntity(Entity entity, List<Player> observers) throws FieldAccessException;
+	
+	/**
+	 * Retrieve the associated entity.
+	 * @param container - the world the entity belongs to.
+	 * @param id - the unique ID of the entity.
+	 * @return The associated entity.
+	 * @throws FieldAccessException Reflection failed.
+	 */
+	public Entity getEntityFromID(World container, int id) throws FieldAccessException;
+	
+	/**
+	 * Retrieve every client that is receiving information about a given entity.
+	 * @param entity - the entity that is being tracked.
+	 * @return Every client/player that is tracking the given entity.
+	 * @throws FieldAccessException If reflection failed.
+	 */
+	public List<Player> getEntityTrackers(Entity entity) throws FieldAccessException;
+	
+	/**
+	 * Retrieves a immutable set containing the ID of the sent server packets that will be observed by listeners.
+	 * <p>
+	 * Deprecated: Use {@link #getSendingFilterTypes()} instead.
+	 * @return Every filtered server packet.
+	 */
+	@Deprecated
+	public Set<Integer> getSendingFilters();
+	
+	/**
+	 * Retrieves a immutable set containing the type of the sent server packets that will be observed by listeners.
+	 * @return Every filtered server packet.
+	 */
+	public Set<PacketType> getSendingFilterTypes();
+	
+	/**
+	 * Retrieves a immutable set containing the ID of the received client packets that will be observed by listeners.
+	 * <p>
+	 * Deprecated: Use {@link #getReceivingFilterTypes()} instead.
+	 * @return Every filtered client packet.
+	 */
+	@Deprecated
+	public Set<Integer> getReceivingFilters();
+	
+	/**
+	 * Retrieves a immutable set containing the type of the received client packets that will be observed by listeners.
+	 * @return Every filtered client packet.
+	 */
+	public Set<PacketType> getReceivingFilterTypes();
+	
+	/**
+	 * Retrieve the current Minecraft version.
+	 * @return The current version.
+	 */
+	public MinecraftVersion getMinecraftVersion();
+	
+	/**
+	 * Determines whether or not this protocol manager has been disabled.
+	 * @return TRUE if it has, FALSE otherwise.
+	 */
+	public boolean isClosed();
+
+	/**
+	 * Retrieve the current asynchronous packet manager.
+	 * @return Asynchronous packet manager.
+	 */
+	public AsynchronousManager getAsynchronousManager();
+
+	public void verifyWhitelist(PacketListener listener, ListeningWhitelist whitelist);
+}

src/main/java/com/comphenix/protocol/RangeParser.java

@@ -0,0 +1,164 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol;
+
+import java.util.ArrayDeque;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Deque;
+import java.util.List;
+
+import com.google.common.collect.ContiguousSet;
+import com.google.common.collect.DiscreteDomain;
+import com.google.common.collect.Range;
+
+/**
+ * Used to parse ranges in CommandPacket.
+ * 
+ * @author Kristian
+ */
+class RangeParser {
+	/**
+	 * Parse a range from a given text.
+	 * @param text - the text.
+	 * @param legalRange - range of legal values.
+	 * @return The parsed ranges.
+	 */
+	public static List<Range<Integer>> getRanges(String text, Range<Integer> legalRange) {
+		return getRanges(new ArrayDeque<String>(Arrays.asList(text)), legalRange);
+	}
+	
+	/**
+	 * Parse ranges from an array of elements.
+	 * @param args - array of elements.
+	 * @param offset - beginning offset.
+	 * @param lastIndex - the last index of the array to read.
+	 * @param legalRange - range of legal values.
+	 * @return The parsed ranges.
+	 */
+	public static List<Range<Integer>> getRanges(Deque<String> input, Range<Integer> legalRange) {
+		List<String> tokens = tokenizeInput(input);
+		List<Range<Integer>> ranges = new ArrayList<Range<Integer>>();
+		
+		for (int i = 0; i < tokens.size(); i++) {
+			Range<Integer> range;
+			String current = tokens.get(i);
+			String next = i + 1 < tokens.size() ? tokens.get(i + 1) : null;
+			
+			// Yoda equality is done for null-safety
+			if ("-".equals(current)) {
+				throw new IllegalArgumentException("A hyphen must appear between two numbers.");
+			} else if ("-".equals(next)) {
+				if (i + 2 >= tokens.size())
+					throw new IllegalArgumentException("Cannot form a range without a upper limit.");
+
+				// This is a proper range
+				range = Range.closed(Integer.parseInt(current), Integer.parseInt(tokens.get(i + 2)));
+				ranges.add(range);
+				
+				// Skip the two next tokens
+				i += 2;
+				
+			} else {
+				// Just a single number
+				range = Range.singleton(Integer.parseInt(current));
+				ranges.add(range);
+			}
+			
+			// Validate ranges
+			if (!legalRange.encloses(range)) {
+				throw new IllegalArgumentException(range + " is not in the range " + range.toString());
+			}
+		}
+		
+		return simplify(ranges, legalRange.upperEndpoint());
+	}
+	
+	/**
+	 * Simplify a list of ranges by assuming a maximum value.
+	 * @param ranges - the list of ranges to simplify.
+	 * @param maximum - the maximum value (minimum value is always 0).
+	 * @return A simplified list of ranges.
+	 */
+	private static List<Range<Integer>> simplify(List<Range<Integer>> ranges, int maximum) {
+		List<Range<Integer>> result = new ArrayList<Range<Integer>>();
+		boolean[] set = new boolean[maximum + 1];
+		int start = -1;
+		
+		// Set every ID
+		for (Range<Integer> range : ranges) {
+			for (int id : ContiguousSet.create(range, DiscreteDomain.integers())) {
+				set[id] = true;
+			}
+		}
+		
+		// Generate ranges from this set
+		for (int i = 0; i <= set.length; i++) {
+			if (i < set.length && set[i]) {
+				if (start < 0) {
+					start = i;
+				}
+			} else {
+				if (start >= 0) {
+					result.add(Range.closed(start, i - 1));
+					start = -1;
+				}
+			}
+		}
+		
+		return result;
+	}
+	
+	private static List<String> tokenizeInput(Deque<String> input) {
+		List<String> tokens = new ArrayList<String>();
+		
+		// Tokenize the input
+		while (!input.isEmpty()) {
+			StringBuilder number = new StringBuilder();
+			String text = input.peek();
+			
+			for (int j = 0; j < text.length(); j++) {
+				char current = text.charAt(j);
+				
+				if (Character.isDigit(current)) {
+					number.append(current);
+				} else if (Character.isWhitespace(current)) {
+					// That's ok
+				} else if (current == '-') {
+					// Add the number token first
+					if (number.length() > 0) {
+						tokens.add(number.toString());
+						number.setLength(0);
+					}
+					
+					tokens.add(Character.toString(current));
+				} else {
+					// We're no longer dealing with integers - quit
+					return tokens;
+				}
+			}
+			
+			// Add the number token, if it hasn't already
+			if (number.length() > 0)
+				tokens.add(number.toString());
+			input.poll();
+		}
+		
+		return tokens;
+	}
+}

src/main/java/com/comphenix/protocol/async/AsyncFilterManager.java

@@ -0,0 +1,493 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.async;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.scheduler.BukkitScheduler;
+
+import com.comphenix.protocol.AsynchronousManager;
+import com.comphenix.protocol.PacketStream;
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolManager;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.events.PacketListener;
+import com.comphenix.protocol.injector.PrioritizedListener;
+import com.comphenix.protocol.injector.SortedPacketListenerList;
+import com.comphenix.protocol.injector.packet.PacketRegistry;
+import com.google.common.base.Objects;
+import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Iterables;
+import com.google.common.collect.Sets;
+
+/**
+ * Represents a filter manager for asynchronous packets.
+ * <p>
+ * By using {@link AsyncMarker#incrementProcessingDelay()}, a packet can be delayed without having to block the
+ * processing thread.
+ * @author Kristian
+ */
+public class AsyncFilterManager implements AsynchronousManager {
+
+	private SortedPacketListenerList serverTimeoutListeners;
+	private SortedPacketListenerList clientTimeoutListeners;
+	private Set<PacketListener> timeoutListeners;
+	
+	private PacketProcessingQueue serverProcessingQueue;
+	private PacketProcessingQueue clientProcessingQueue;
+
+	// Sending queues
+	private final PlayerSendingHandler playerSendingHandler;
+	
+	// Report exceptions
+	private final ErrorReporter reporter;
+	
+	// The likely main thread
+	private final Thread mainThread;
+	
+	// Default scheduler
+	private final BukkitScheduler scheduler;
+	
+	// Current packet index
+	private final AtomicInteger currentSendingIndex = new AtomicInteger();
+	
+	// Our protocol manager
+	private ProtocolManager manager;
+	
+	/**
+	 * Initialize a asynchronous filter manager.
+	 * <p>
+	 * <b>Internal method</b>. Retrieve the global asynchronous manager from the protocol manager instead.
+	 * @param reporter - desired error reporter.
+	 * @param scheduler - task scheduler.
+	 */
+	public AsyncFilterManager(ErrorReporter reporter, BukkitScheduler scheduler) {
+		// Initialize timeout listeners
+		this.serverTimeoutListeners = new SortedPacketListenerList();
+		this.clientTimeoutListeners = new SortedPacketListenerList();
+		this.timeoutListeners = Sets.newSetFromMap(new ConcurrentHashMap<PacketListener, Boolean>());
+
+		this.playerSendingHandler = new PlayerSendingHandler(reporter, serverTimeoutListeners, clientTimeoutListeners);
+		this.serverProcessingQueue = new PacketProcessingQueue(playerSendingHandler);
+		this.clientProcessingQueue = new PacketProcessingQueue(playerSendingHandler);
+		this.playerSendingHandler.initializeScheduler();
+		
+		this.scheduler = scheduler;
+		this.reporter = reporter;
+		this.mainThread = Thread.currentThread();
+	}
+	
+	/**
+	 * Retrieve the protocol manager.
+	 * @return The protocol manager.
+	 */
+	public ProtocolManager getManager() {
+		return manager;
+	}
+	
+	/**
+	 * Set the associated protocol manager.
+	 * @param manager - the new manager.
+	 */
+	public void setManager(ProtocolManager manager) {
+		this.manager = manager;
+	}
+	
+	@Override
+	public AsyncListenerHandler registerAsyncHandler(PacketListener listener) {
+		return registerAsyncHandler(listener, true);
+	}
+	
+	@Override
+	public void registerTimeoutHandler(PacketListener listener) {
+		if (listener == null)
+			throw new IllegalArgumentException("listener cannot be NULL.");
+		if (!timeoutListeners.add(listener))
+			return;
+		
+		ListeningWhitelist sending = listener.getSendingWhitelist();
+		ListeningWhitelist receiving = listener.getReceivingWhitelist();
+		
+		if (!ListeningWhitelist.isEmpty(sending))
+			serverTimeoutListeners.addListener(listener, sending);
+		if (!ListeningWhitelist.isEmpty(receiving))
+			serverTimeoutListeners.addListener(listener, receiving);
+	}
+
+	@Override
+	public Set<PacketListener> getTimeoutHandlers() {
+		return ImmutableSet.copyOf(timeoutListeners);
+	}
+	
+	@Override
+	public Set<PacketListener> getAsyncHandlers() {
+		ImmutableSet.Builder<PacketListener> builder = ImmutableSet.builder();
+		
+		// Add every asynchronous packet listener
+		for (PrioritizedListener<AsyncListenerHandler> handler :
+				Iterables.concat(serverProcessingQueue.values(), clientProcessingQueue.values())) {
+			builder.add(handler.getListener().getAsyncListener());
+		}
+		return builder.build();
+	}
+	
+	/**
+	 * Registers an asynchronous packet handler.
+	 * <p>
+	 * Use {@link AsyncMarker#incrementProcessingDelay()} to delay a packet until its ready to be transmitted.
+	 * <p>
+	 * To start listening asynchronously, pass the getListenerLoop() runnable to a different thread.
+	 * <p>
+	 * Asynchronous events will only be executed if a synchronous listener with the same packets is registered.
+	 * If you already have a synchronous event, call this method with autoInject set to FALSE.
+	 * 
+	 * @param listener - the packet listener that will receive these asynchronous events.
+	 * @param autoInject - whether or not to automatically create the corresponding synchronous listener,
+	 * @return An asynchronous handler.
+	 */
+	public AsyncListenerHandler registerAsyncHandler(PacketListener listener, boolean autoInject) {
+		AsyncListenerHandler handler = new AsyncListenerHandler(mainThread, this, listener);
+		
+		ListeningWhitelist sendingWhitelist = listener.getSendingWhitelist();
+		ListeningWhitelist receivingWhitelist = listener.getReceivingWhitelist();
+		
+		if (!hasValidWhitelist(sendingWhitelist) && !hasValidWhitelist(receivingWhitelist)) {
+			throw new IllegalArgumentException("Listener has an empty sending and receiving whitelist.");
+		}
+		
+		// Add listener to either or both processing queue
+		if (hasValidWhitelist(sendingWhitelist)) {
+			manager.verifyWhitelist(listener, sendingWhitelist);
+			serverProcessingQueue.addListener(handler, sendingWhitelist);
+		}
+		if (hasValidWhitelist(receivingWhitelist)) {
+			manager.verifyWhitelist(listener, receivingWhitelist);
+			clientProcessingQueue.addListener(handler, receivingWhitelist);
+		}
+		
+		// We need a synchronized listener to get the ball rolling
+		if (autoInject) {
+			handler.setNullPacketListener(new NullPacketListener(listener));
+			manager.addPacketListener(handler.getNullPacketListener());
+		}
+		return handler;
+	}
+	
+	private boolean hasValidWhitelist(ListeningWhitelist whitelist) {
+		return whitelist != null && whitelist.getTypes().size() > 0;
+	}
+	
+	@Override
+	public void unregisterTimeoutHandler(PacketListener listener) {
+		if (listener == null)
+			throw new IllegalArgumentException("listener cannot be NULL.");
+		
+		ListeningWhitelist sending = listener.getSendingWhitelist();
+		ListeningWhitelist receiving = listener.getReceivingWhitelist();
+		
+		// Do it in the opposite order
+		if (serverTimeoutListeners.removeListener(listener, sending).size() > 0 ||
+			clientTimeoutListeners.removeListener(listener, receiving).size() > 0) {
+			timeoutListeners.remove(listener);
+		}
+	}
+	
+	@Override
+	public void unregisterAsyncHandler(PacketListener listener) {
+		if (listener == null)
+			throw new IllegalArgumentException("listener cannot be NULL.");
+		
+		AsyncListenerHandler handler =
+					  findHandler(serverProcessingQueue, listener.getSendingWhitelist(), listener);
+		
+		if (handler == null) {
+			handler = findHandler(clientProcessingQueue, listener.getReceivingWhitelist(), listener);
+		}
+		unregisterAsyncHandler(handler);
+	}
+	
+	// Search for the first correct handler
+	private AsyncListenerHandler findHandler(PacketProcessingQueue queue, ListeningWhitelist search, PacketListener target) {
+		if (ListeningWhitelist.isEmpty(search))
+			return null;
+		
+		for (PacketType type : search.getTypes()) {
+			for (PrioritizedListener<AsyncListenerHandler> element : queue.getListener(type)) {
+				if (element.getListener().getAsyncListener() == target) {
+					return element.getListener();
+				}
+			}
+		}
+		return null;
+	}
+	
+	@Override
+	public void unregisterAsyncHandler(AsyncListenerHandler handler) {
+		if (handler == null)
+			throw new IllegalArgumentException("listenerToken cannot be NULL");
+		
+		handler.cancel();
+	}
+	
+	// Called by AsyncListenerHandler
+	void unregisterAsyncHandlerInternal(AsyncListenerHandler handler) {
+		
+		PacketListener listener = handler.getAsyncListener();
+		boolean synchronusOK = onMainThread();
+		
+		// Unregister null packet listeners
+		if (handler.getNullPacketListener() != null) {
+			manager.removePacketListener(handler.getNullPacketListener());
+		}
+		
+		// Just remove it from the queue(s)
+		if (hasValidWhitelist(listener.getSendingWhitelist())) {
+			List<PacketType> removed = serverProcessingQueue.removeListener(handler, listener.getSendingWhitelist());
+			
+			// We're already taking care of this, so don't do anything
+			playerSendingHandler.sendServerPackets(removed, synchronusOK);
+		}
+		
+		if (hasValidWhitelist(listener.getReceivingWhitelist())) {
+			List<PacketType> removed = clientProcessingQueue.removeListener(handler, listener.getReceivingWhitelist());
+			playerSendingHandler.sendClientPackets(removed, synchronusOK);
+		}
+	}
+	
+	/**
+	 * Determine if we're running on the main thread.
+	 * @return TRUE if we are, FALSE otherwise.
+	 */
+	private boolean onMainThread() {
+		return Thread.currentThread().getId() == mainThread.getId();
+	}
+	
+	@Override
+	public void unregisterAsyncHandlers(Plugin plugin) {
+		unregisterAsyncHandlers(serverProcessingQueue, plugin);
+		unregisterAsyncHandlers(clientProcessingQueue, plugin);
+	}
+	
+	private void unregisterAsyncHandlers(PacketProcessingQueue processingQueue, Plugin plugin) {
+		
+		// Iterate through every packet listener
+		for (PrioritizedListener<AsyncListenerHandler> listener : processingQueue.values()) {
+			// Remove the listener
+			if (Objects.equal(listener.getListener().getPlugin(), plugin)) {
+				unregisterAsyncHandler(listener.getListener());
+			}
+		}
+	}
+	
+	/**
+	 * Enqueue a packet for asynchronous processing.
+	 * 
+	 * @param syncPacket - synchronous packet event.
+	 * @param asyncMarker - the asynchronous marker to use.
+	 */
+	public synchronized void enqueueSyncPacket(PacketEvent syncPacket, AsyncMarker asyncMarker) {
+		PacketEvent newEvent = PacketEvent.fromSynchronous(syncPacket, asyncMarker);
+
+		if (asyncMarker.isQueued() || asyncMarker.isTransmitted())
+			throw new IllegalArgumentException("Cannot queue a packet that has already been queued.");
+
+		asyncMarker.setQueuedSendingIndex(asyncMarker.getNewSendingIndex());
+
+		// The player is only be null when they're logged out,
+		// so this should be a pretty safe check
+		Player player = syncPacket.getPlayer();
+		if (player != null) {
+			// Start the process
+			getSendingQueue(syncPacket).enqueue(newEvent);
+
+			// We know this is occurring on the main thread, so pass TRUE
+			getProcessingQueue(syncPacket).enqueue(newEvent, true);
+		}
+	}
+	
+	@Override
+	public Set<Integer> getSendingFilters() {
+		return PacketRegistry.toLegacy(serverProcessingQueue.keySet());
+	}
+	
+	@Override
+	public Set<PacketType> getReceivingTypes() {
+		return serverProcessingQueue.keySet();
+	}
+	
+	@Override
+	public Set<Integer> getReceivingFilters() {
+		return PacketRegistry.toLegacy(clientProcessingQueue.keySet());
+	}
+	
+	@Override
+	public Set<PacketType> getSendingTypes() {
+		return clientProcessingQueue.keySet();
+	}
+	
+	/**
+	 * Retrieve the current task scheduler.
+	 * @return Current task scheduler.
+	 */
+	public BukkitScheduler getScheduler() {
+		return scheduler;
+	}
+	
+	@Override
+	public boolean hasAsynchronousListeners(PacketEvent packet) {
+		 Collection<?> list = getProcessingQueue(packet).getListener(packet.getPacketType());
+		 return list != null && list.size() > 0;
+	}
+	
+	/**
+	 * Construct a asynchronous marker with all the default values.
+	 * @return Asynchronous marker.
+	 */
+	public AsyncMarker createAsyncMarker() {
+		return createAsyncMarker(AsyncMarker.DEFAULT_TIMEOUT_DELTA);
+	}
+	
+	/**
+	 * Construct an async marker with the given sending priority delta and timeout delta.
+	 * @param timeoutDelta - how long (in ms) until the packet expire.
+	 * @return An async marker.
+	 */
+	public AsyncMarker createAsyncMarker(long timeoutDelta) {
+		return createAsyncMarker(timeoutDelta, currentSendingIndex.incrementAndGet());
+	}
+	
+	// Helper method
+	private AsyncMarker createAsyncMarker(long timeoutDelta, long sendingIndex) {
+		return new AsyncMarker(manager, sendingIndex, System.currentTimeMillis(), timeoutDelta);
+	}
+	
+	@Override
+	public PacketStream getPacketStream() {
+		return manager;
+	}
+
+	@Override
+	public ErrorReporter getErrorReporter() {
+		return reporter;
+	}
+	
+	@Override
+	public void cleanupAll() {
+		serverProcessingQueue.cleanupAll();
+		playerSendingHandler.cleanupAll();
+		timeoutListeners.clear();
+		
+		serverTimeoutListeners = null;
+		clientTimeoutListeners = null;
+	}
+	
+	@Override
+	public void signalPacketTransmission(PacketEvent packet) {
+		signalPacketTransmission(packet, onMainThread());
+	}
+
+	/**
+	 * Signal that a packet is ready to be transmitted.
+	 * @param packet - packet to signal.
+	 * @param onMainThread - whether or not this method was run by the main thread.
+	 */
+	private void signalPacketTransmission(PacketEvent packet, boolean onMainThread) {
+		AsyncMarker marker = packet.getAsyncMarker();
+		if (marker == null)
+			throw new IllegalArgumentException(
+					"A sync packet cannot be transmitted by the asynchronous manager.");
+		if (!marker.isQueued())
+			throw new IllegalArgumentException(
+					"A packet must have been queued before it can be transmitted.");
+		
+		// Only send if the packet is ready
+		if (marker.decrementProcessingDelay() == 0) {
+			PacketSendingQueue queue = getSendingQueue(packet, false);
+			
+			// No need to create a new queue if the player has logged out
+			if (queue != null)
+				queue.signalPacketUpdate(packet, onMainThread);
+		}
+	}
+	
+	/**
+	 * Retrieve the sending queue this packet belongs to.
+	 * @param packet - the packet.
+	 * @return The server or client sending queue the packet belongs to.
+	 */
+	public PacketSendingQueue getSendingQueue(PacketEvent packet) {
+		return playerSendingHandler.getSendingQueue(packet);
+	}
+	
+	/**
+	 * Retrieve the sending queue this packet belongs to.
+	 * @param packet - the packet.
+	 * @param createNew - if TRUE, create a new queue if it hasn't already been created.
+	 * @return The server or client sending queue the packet belongs to.
+	 */
+	public PacketSendingQueue getSendingQueue(PacketEvent packet, boolean createNew) {
+		return playerSendingHandler.getSendingQueue(packet, createNew);
+	}
+	
+	/**
+	 * Retrieve the processing queue this packet belongs to.
+	 * @param packet - the packet.
+	 * @return The server or client sending processing the packet belongs to.
+	 */
+	public PacketProcessingQueue getProcessingQueue(PacketEvent packet) {
+		return packet.isServerPacket() ? serverProcessingQueue : clientProcessingQueue;
+	}
+	
+	/**
+	 * Signal that a packet has finished processing.
+	 * @param packet - packet to signal.
+	 */
+	public void signalFreeProcessingSlot(PacketEvent packet) {
+		getProcessingQueue(packet).signalProcessingDone();
+	}
+	
+	/**
+	 * Send any due packets, or clean up packets that have expired.
+	 * @param tickCounter Tick counter
+	 * @param onMainThread Whether or not to execute on the main thread
+	 */
+	public void sendProcessedPackets(int tickCounter, boolean onMainThread) {
+		// The server queue is unlikely to need checking that often
+		if (tickCounter % 10 == 0) {
+			playerSendingHandler.trySendServerPackets(onMainThread);
+		}
+		
+		playerSendingHandler.trySendClientPackets(onMainThread);
+	}
+
+	/**
+	 * Clean up after a given player has logged out.
+	 * @param player - the player that has just logged out.
+	 */
+	public void removePlayer(Player player) {
+		playerSendingHandler.removePlayer(player);
+	}
+}

src/main/java/com/comphenix/protocol/async/AsyncListenerHandler.java

@@ -0,0 +1,704 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.async;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.concurrent.ArrayBlockingQueue;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.atomic.AtomicBoolean;
+import java.util.concurrent.atomic.AtomicInteger;
+
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.error.Report;
+import com.comphenix.protocol.error.ReportType;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.PacketAdapter;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.events.PacketListener;
+import com.comphenix.protocol.timing.TimedListenerManager;
+import com.comphenix.protocol.timing.TimedListenerManager.ListenerType;
+import com.comphenix.protocol.timing.TimedTracker;
+import com.google.common.base.Function;
+import com.google.common.base.Joiner;
+
+import org.bukkit.plugin.Plugin;
+
+/**
+ * Represents a handler for an asynchronous event.
+ * <p>
+ * Use {@link AsyncMarker#incrementProcessingDelay()} to delay a packet until a certain condition has been met.
+ * @author Kristian
+ */
+public class AsyncListenerHandler {
+	public static final ReportType REPORT_HANDLER_NOT_STARTED = new ReportType(
+		"Plugin %s did not start the asynchronous handler %s by calling start() or syncStart().");
+
+	/**
+	 * Signal an end to packet processing.
+	 */
+	private static final PacketEvent INTERUPT_PACKET = new PacketEvent(new Object());
+	
+	/**
+	 * Called when the threads have to wake up for something important.
+	 */
+	private static final PacketEvent WAKEUP_PACKET = new PacketEvent(new Object());
+	
+	/**
+	 * The expected number of ticks per second.
+	 */
+	private static final int TICKS_PER_SECOND = 20;
+	
+	// Unique worker ID
+	private static final AtomicInteger nextID = new AtomicInteger();
+	
+	// Default queue capacity
+	private static final int DEFAULT_CAPACITY = 1024;
+	
+	// Cancel the async handler
+	private volatile boolean cancelled;
+	
+	// Number of worker threads
+	private final AtomicInteger started = new AtomicInteger();
+	
+	// The packet listener
+	private PacketListener listener;
+
+	// The filter manager
+	private AsyncFilterManager filterManager;
+	private NullPacketListener nullPacketListener;
+	
+	// List of queued packets
+	private ArrayBlockingQueue<PacketEvent> queuedPackets = new ArrayBlockingQueue<PacketEvent>(DEFAULT_CAPACITY);
+	
+	// List of cancelled tasks
+	private final Set<Integer> stoppedTasks = new HashSet<Integer>();
+	private final Object stopLock = new Object();
+	
+	// Processing task on the main thread
+	private int syncTask = -1;
+	
+	// Minecraft main thread
+	private Thread mainThread;
+	
+	// Warn plugins that the async listener handler must be started
+	private int warningTask;
+	
+	// Timing manager
+	private TimedListenerManager timedManager = TimedListenerManager.getInstance();
+	
+	/**
+	 * Construct a manager for an asynchronous packet handler.
+	 * @param mainThread - the main game thread.
+	 * @param filterManager - the parent filter manager.
+	 * @param listener - the current packet listener.
+	 */
+	AsyncListenerHandler(Thread mainThread, AsyncFilterManager filterManager, PacketListener listener) {
+		if (filterManager == null)
+			throw new IllegalArgumentException("filterManager cannot be NULL");
+		if (listener == null)
+			throw new IllegalArgumentException("listener cannot be NULL");
+
+		this.mainThread = mainThread;
+		this.filterManager = filterManager;
+		this.listener = listener;
+		startWarningTask();
+	}
+	
+	private void startWarningTask() {
+		warningTask = filterManager.getScheduler().scheduleSyncDelayedTask(getPlugin(), new Runnable() {
+			@Override
+			public void run() {
+				ProtocolLibrary.getErrorReporter().reportWarning(AsyncListenerHandler.this, Report.
+						newBuilder(REPORT_HANDLER_NOT_STARTED).
+						messageParam(listener.getPlugin(), AsyncListenerHandler.this).
+						build()
+				);
+			}
+		}, 2 * TICKS_PER_SECOND);
+	}
+	
+	private void stopWarningTask() {
+		int taskId = warningTask;
+		
+		// Ensure we have a task to cancel
+		if (warningTask >= 0) {
+			filterManager.getScheduler().cancelTask(taskId);
+			warningTask = -1;
+		}
+	}
+	
+	/**
+	 * Determine whether or not this asynchronous handler has been cancelled.
+	 * @return TRUE if it has been cancelled/stopped, FALSE otherwise.
+	 */
+	public boolean isCancelled() {
+		return cancelled;
+	}
+
+	/**
+	 * Retrieve the current asynchronous packet listener.
+	 * @return Current packet listener.
+	 */
+	public PacketListener getAsyncListener() {
+		return listener;
+	}
+
+	/**
+	 * Set the synchronized listener that has been automatically created.
+	 * @param nullPacketListener - automatically created listener.
+	 */
+	void setNullPacketListener(NullPacketListener nullPacketListener) {
+		this.nullPacketListener = nullPacketListener;
+	}
+
+	/**
+	 * Retrieve the synchronized listener that was automatically created.
+	 * @return Automatically created listener.
+	 */
+	PacketListener getNullPacketListener() {
+		return nullPacketListener;
+	}
+
+	/**
+	 * Retrieve the plugin associated with this async listener.
+	 * @return The plugin.
+	 */
+	public Plugin getPlugin() {
+		return listener != null ? listener.getPlugin() : null;
+	}
+	
+	/**
+	 * Cancel the handler.
+	 */
+	public void cancel() {
+		// Remove the listener as quickly as possible
+		close();
+	}
+
+	/**
+	 * Queue a packet for processing.
+	 * @param packet - a packet for processing.
+	 * @throws IllegalStateException If the underlying packet queue is full.
+	 */
+	public void enqueuePacket(PacketEvent packet) {
+		if (packet == null)
+			throw new IllegalArgumentException("packet is NULL");
+		
+		queuedPackets.add(packet);
+	}
+	
+	/**
+	 * Create a worker that will initiate the listener loop. Note that using stop() to
+	 * close a specific worker is less efficient than stopping an arbitrary worker.
+	 * <p>
+	 * <b>Warning</b>: Never call the run() method in the main thread.
+	 * @return The listener loop
+	 */
+	public AsyncRunnable getListenerLoop() {
+		return new AsyncRunnable() {
+
+			private final AtomicBoolean firstRun = new AtomicBoolean();
+			private final AtomicBoolean finished = new AtomicBoolean();
+			private final int id = nextID.incrementAndGet();
+			
+			@Override
+			public int getID() {
+				return id;
+			}
+			
+			@Override
+			public void run() {
+				// Careful now
+				if (firstRun.compareAndSet(false, true)) {
+					listenerLoop(id);
+					
+					synchronized (stopLock) {
+						stoppedTasks.remove(id);
+						stopLock.notifyAll();
+						finished.set(true);
+					}
+					
+				} else {
+					if (finished.get())
+						throw new IllegalStateException(
+							"This listener has already been run. Create a new instead.");
+					else
+						throw new IllegalStateException(
+							"This listener loop has already been started. Create a new instead.");
+				}
+			}
+			
+			@Override
+			public boolean stop() throws InterruptedException {
+				synchronized (stopLock) {
+					if (!isRunning())
+						return false;
+
+					stoppedTasks.add(id);
+			
+					// Wake up threads - we have a listener to stop
+					for (int i = 0; i < getWorkers(); i++) {
+						queuedPackets.offer(WAKEUP_PACKET);
+					}
+					
+					finished.set(true);
+					waitForStops();
+					return true;
+				}
+			}
+
+			@Override
+			public boolean isRunning() {
+				return firstRun.get() && !finished.get();
+			}
+			
+			@Override
+			public boolean isFinished() {
+				return finished.get();
+			}
+		};
+	}
+	
+	/**
+	 * Start a singler worker thread handling the asynchronous listener.
+	 */
+	public synchronized void start() {
+		if (listener.getPlugin() == null)
+			throw new IllegalArgumentException("Cannot start task without a valid plugin.");
+		if (cancelled)
+			throw new IllegalStateException("Cannot start a worker when the listener is closing.");
+		
+		final AsyncRunnable listenerLoop = getListenerLoop();
+		
+		stopWarningTask();
+		scheduleAsync(new Runnable() {
+			@Override
+			public void run() {
+				Thread thread = Thread.currentThread();
+				
+				String previousName = thread.getName();
+				String workerName = getFriendlyWorkerName(listenerLoop.getID());
+
+				// Add the friendly worker name
+				thread.setName(workerName);
+				listenerLoop.run();
+				thread.setName(previousName);
+			}
+		});
+	}
+	
+	/**
+	 * Start a singler worker thread handling the asynchronous listener.
+	 * <p>
+	 * This method is intended to allow callers to customize the thread priority
+	 * before the worker loop is actually called. This is simpler than to
+	 * schedule the worker threads manually.
+	 * <pre><code>
+	 * listenerHandler.start(new Function&lt;AsyncRunnable, Void&gt;() {
+	 *     &#64;Override
+	 *     public Void apply(&#64;Nullable AsyncRunnable workerLoop) {
+	 *         Thread thread = Thread.currentThread();
+	 *         int prevPriority = thread.getPriority();
+	 *	
+	 *         thread.setPriority(Thread.MIN_PRIORITY);
+	 *         workerLoop.run();
+	 *         thread.setPriority(prevPriority);
+	 *         return null;
+	 *     }
+	 *   });
+	 * }
+	 * </code></pre>
+	 * @param executor - a method that will execute the given listener loop.
+	 */
+	public synchronized void start(Function<AsyncRunnable, Void> executor) {
+		if (listener.getPlugin() == null)
+			throw new IllegalArgumentException("Cannot start task without a valid plugin.");
+		if (cancelled)
+			throw new IllegalStateException("Cannot start a worker when the listener is closing.");
+		
+		final AsyncRunnable listenerLoop = getListenerLoop();
+		final Function<AsyncRunnable, Void> delegateCopy = executor;
+		
+		scheduleAsync(new Runnable() {
+			@Override
+			public void run() {
+				delegateCopy.apply(listenerLoop);
+			}
+		});
+	}
+	
+	private void scheduleAsync(Runnable runnable) {
+		listener.getPlugin().getServer().getScheduler().runTaskAsynchronously(listener.getPlugin(), runnable);
+	}
+	
+	/**
+	 * Create a friendly thread name using the following convention:
+	 * <p><code>
+	 * &nbsp;&nbsp;&nbsp;&nbsp;Protocol Worker {id} - {plugin} - [recv: {packets}, send: {packets}]
+	 * </code></p>
+	 * @param id - the worker ID.
+	 * @return A friendly thread name.
+	 */
+	public String getFriendlyWorkerName(int id) {
+		return String.format("Protocol Worker #%s - %s - [recv: %s, send: %s]",
+				id,
+				PacketAdapter.getPluginName(listener),
+				fromWhitelist(listener.getReceivingWhitelist()),
+				fromWhitelist(listener.getSendingWhitelist())
+		);
+	}
+	
+	/**
+	 * Convert the given whitelist to a comma-separated list of packet IDs.
+	 * @param whitelist - the whitelist.
+	 * @return A comma separated list of packet IDs in the whitelist, or the emtpy string.
+	 */
+	private String fromWhitelist(ListeningWhitelist whitelist) {
+		if (whitelist == null)
+			return "";
+		else
+			return Joiner.on(", ").join(whitelist.getTypes());
+	}
+	
+	/**
+	 * Start processing packets on the main thread.
+	 * <p>
+	 * This is useful if you need to synchronize with the main thread in your packet listener, but
+	 * you're not performing any expensive processing.
+	 * <p>
+	 * <b>Note</b>: Use a asynchronous worker if the packet listener may use more than 0.5 ms
+	 * of processing time on a single packet. Do as much as possible on the worker thread, and schedule synchronous tasks
+	 * to use the Bukkit API instead.
+	 * @return TRUE if the synchronized processing was successfully started, FALSE if it's already running.
+	 * @throws IllegalStateException If we couldn't start the underlying task.
+	 */
+	public synchronized boolean syncStart() {
+		return syncStart(500, TimeUnit.MICROSECONDS);
+	}
+	
+	/**
+	 * Start processing packets on the main thread.
+	 * <p>
+	 * This is useful if you need to synchronize with the main thread in your packet listener, but
+	 * you're not performing any expensive processing.
+	 * <p>
+	 * The processing time parameter gives the upper bound for the amount of time spent processing pending packets.
+	 * It should be set to a fairly low number, such as 0.5 ms or 1% of a game tick - to reduce the impact
+	 * on the main thread. Never go beyond 50 milliseconds.
+	 * <p>
+	 * <b>Note</b>: Use a asynchronous worker if the packet listener may exceed the ideal processing time
+	 * on a single packet. Do as much as possible on the worker thread, and schedule synchronous tasks
+	 * to use the Bukkit API instead.
+	 * 
+	 * @param time - the amount of processing time alloted per game tick (20 ticks per second).
+	 * @param unit - the unit of the processingTime argument.
+	 * @return TRUE if the synchronized processing was successfully started, FALSE if it's already running.
+	 * @throws IllegalStateException If we couldn't start the underlying task.
+	 */
+	public synchronized boolean syncStart(final long time, final TimeUnit unit) {
+		if (time <= 0)
+			throw new IllegalArgumentException("Time must be greater than zero.");
+		if (unit == null)
+			throw new IllegalArgumentException("TimeUnit cannot be NULL.");
+	
+		final long tickDelay = 1;
+		final int workerID = nextID.incrementAndGet();
+		
+		if (syncTask < 0) {
+			stopWarningTask();
+			
+			syncTask = filterManager.getScheduler().scheduleSyncRepeatingTask(getPlugin(), new Runnable() {
+				@Override
+				public void run() {
+					long stopTime = System.nanoTime() + unit.convert(time, TimeUnit.NANOSECONDS);
+					
+					while (!cancelled) {
+						PacketEvent packet = queuedPackets.poll();
+						
+						if (packet == INTERUPT_PACKET || packet == WAKEUP_PACKET) {
+							// Sorry, asynchronous threads!
+							queuedPackets.add(packet);
+							
+							// Try again next tick
+							break;
+						} else if (packet != null && packet.getAsyncMarker() != null) {
+							processPacket(workerID, packet, "onSyncPacket()");
+						} else {
+							// No more packets left - wait a tick
+							break;
+						}
+						
+						// Check time here, ensuring that we at least process one packet
+						if (System.nanoTime() < stopTime)
+							break;
+					}
+				}
+			}, tickDelay, tickDelay);
+			
+			// This is very bad - force the caller to handle it
+			if (syncTask < 0)
+				throw new IllegalStateException("Cannot start synchronous task.");
+			else
+				return true;
+		} else {
+			return false;
+		}
+	}
+	
+	/**
+	 * Stop processing packets on the main thread.
+	 * @return TRUE if we stopped any processing tasks, FALSE if it has already been stopped.
+	 */
+	public synchronized boolean syncStop() {
+		if (syncTask > 0) {
+			filterManager.getScheduler().cancelTask(syncTask);
+			
+			syncTask = -1;
+			return true;
+		} else {
+			return false;
+		}
+	}
+	
+	/**
+	 * Start multiple worker threads for this listener.
+	 * @param count - number of worker threads to start.
+	 */
+	public synchronized void start(int count) {
+		for (int i = 0; i < count; i++)
+			start();
+	}
+	
+	/**
+	 * Stop a worker thread.
+	 */
+	public synchronized void stop() {
+		queuedPackets.add(INTERUPT_PACKET);
+	}
+	
+	/**
+	 * Stop the given amount of worker threads.
+	 * @param count - number of threads to stop.
+	 */
+	public synchronized void stop(int count) {
+		for (int i = 0; i < count; i++)
+			stop();
+	}
+	
+	/**
+	 * Set the current number of workers.
+	 * <p>
+	 * This method can only be called with a count of zero when the listener is closing.
+	 * @param count - new number of workers.
+	 */
+	public synchronized void setWorkers(int count) {
+		if (count < 0)
+			throw new IllegalArgumentException("Number of workers cannot be less than zero.");
+		if (count > DEFAULT_CAPACITY)
+			throw new IllegalArgumentException("Cannot initiate more than " + DEFAULT_CAPACITY + " workers");
+		if (cancelled && count > 0)
+			throw new IllegalArgumentException("Cannot add workers when the listener is closing.");
+		
+		long time = System.currentTimeMillis();
+		
+		// Try to get to the correct count
+		while (started.get() != count) {
+			if (started.get() < count)
+				start();
+			else
+				stop();
+			
+			// May happen if another thread is doing something similar to "setWorkers"
+			if ((System.currentTimeMillis() - time) > 50)
+				throw new RuntimeException("Failed to set worker count.");
+		}
+	}
+	
+	/**
+	 * Retrieve the current number of registered workers.
+	 * <p>
+	 * Note that the returned value may be out of data.
+	 * @return Number of registered workers.
+	 */
+	public synchronized int getWorkers() {
+		return started.get();
+	}
+	
+	/**
+	 * Wait until every tasks scheduled to stop has actually stopped.
+	 * @return TRUE if the current listener should stop, FALSE otherwise.
+	 * @throws InterruptedException - If the current thread was interrupted.
+	 */
+	private boolean waitForStops() throws InterruptedException {
+		synchronized (stopLock) {
+			while (stoppedTasks.size() > 0 && !cancelled) {
+				stopLock.wait();
+			}
+			return cancelled;
+		}
+	}
+	
+	/**
+	 * The main processing loop of asynchronous threads.
+	 * <p>
+	 * Note: DO NOT call this method from the main thread
+	 * @param workerID - the current worker ID.
+	 */
+	private void listenerLoop(int workerID) {
+		// Danger, danger!
+		if (Thread.currentThread().getId() == mainThread.getId())
+			throw new IllegalStateException("Do not call this method from the main thread.");
+		if (cancelled)
+			throw new IllegalStateException("Listener has been cancelled. Create a new listener instead.");
+
+		try {
+			// Wait if certain threads are stopping
+			if (waitForStops())
+				return;
+			
+			// Proceed
+			started.incrementAndGet();
+			
+			while (!cancelled) {
+				PacketEvent packet = queuedPackets.take();
+				
+				// Handle cancel requests
+				if (packet == WAKEUP_PACKET) {
+					// This is a bit slow, but it should be safe
+					synchronized (stopLock) {
+						// Are we the one who is supposed to stop?
+						if (stoppedTasks.contains(workerID))
+							return;
+						if (waitForStops())
+							return;
+					}
+				} else if (packet == INTERUPT_PACKET) {
+					return;
+				}
+				
+				if (packet != null && packet.getAsyncMarker() != null) {
+					processPacket(workerID, packet, "onAsyncPacket()");
+				}
+			}
+			
+		} catch (InterruptedException e) {
+			// We're done
+		} finally {
+			// Clean up
+			started.decrementAndGet();
+		}
+	}
+	
+	/**
+	 * Called when a packet is scheduled for processing.
+	 * @param workerID - the current worker ID.
+	 * @param packet - the current packet.
+	 * @param methodName - name of the method.
+	 */
+	private void processPacket(int workerID, PacketEvent packet, String methodName) {
+		AsyncMarker marker = packet.getAsyncMarker();
+		
+		// Here's the core of the asynchronous processing
+		try {
+			synchronized (marker.getProcessingLock()) {
+				marker.setListenerHandler(this);
+				marker.setWorkerID(workerID);
+				
+				// We're not THAT worried about performance here
+				if (timedManager.isTiming()) {
+					// Retrieve the tracker to use
+					TimedTracker tracker = timedManager.getTracker(listener,
+						packet.isServerPacket() ? ListenerType.ASYNC_SERVER_SIDE : ListenerType.ASYNC_CLIENT_SIDE);
+					long token = tracker.beginTracking();
+					
+					if (packet.isServerPacket())
+						listener.onPacketSending(packet);
+					else
+						listener.onPacketReceiving(packet);
+					
+					// And we're done
+					tracker.endTracking(token, packet.getPacketType());
+					
+				} else {
+					if (packet.isServerPacket())
+						listener.onPacketSending(packet);
+					else
+						listener.onPacketReceiving(packet);
+				}
+			}
+			
+		} catch (OutOfMemoryError e) {
+			throw e;
+		} catch (ThreadDeath e) {
+			throw e;
+		} catch (Throwable e) {
+			// Minecraft doesn't want your Exception.
+			filterManager.getErrorReporter().reportMinimal(listener.getPlugin(), methodName, e);
+		}
+		
+		// Now, get the next non-cancelled listener
+		if (!marker.hasExpired()) {
+			for (; marker.getListenerTraversal().hasNext(); ) {
+				AsyncListenerHandler handler = marker.getListenerTraversal().next().getListener();
+				
+				if (!handler.isCancelled()) {
+					handler.enqueuePacket(packet);
+					return;
+				}
+			}
+		}
+		
+		// There are no more listeners - queue the packet for transmission
+		filterManager.signalFreeProcessingSlot(packet);
+		
+		// Note that listeners can opt to delay the packet transmission
+		filterManager.signalPacketTransmission(packet);
+	}
+	
+	/**
+	 * Close all worker threads and the handler itself.
+	 */
+	private synchronized void close() {
+		// Remove the listener itself
+		if (!cancelled) {
+			filterManager.unregisterAsyncHandlerInternal(this);
+			cancelled = true;
+			
+			// Close processing tasks
+			syncStop();
+			
+			// Tell every uncancelled thread to end
+			stopThreads();
+		}
+	}
+	
+	/**
+	 * Use the poision pill method to stop every worker thread.
+	 */
+	private void stopThreads() {
+		// Poison Pill Shutdown
+		queuedPackets.clear();
+		stop(started.get());
+		
+		// Individual shut down is irrelevant now
+		synchronized (stopLock) {
+			stopLock.notifyAll();
+		}
+	}
+}

src/main/java/com/comphenix/protocol/async/AsyncMarker.java

@@ -1,305 +1,487 @@
-package com.comphenix.protocol.async;
-
-import java.io.IOException;
-import java.io.Serializable;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.Iterator;
-import java.util.List;
-
-import net.minecraft.server.Packet;
-
-import com.comphenix.protocol.PacketStream;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.injector.PrioritizedListener;
-import com.comphenix.protocol.reflect.FieldAccessException;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-import com.google.common.primitives.Longs;
-
-/**
- * Contains information about the packet that is being processed by asynchronous listeners.
- * <p>
- * Asynchronous listeners can use this to set packet timeout or transmission order.
- * 
- * @author Kristian
- */
-public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
-		
-	/**
-	 * Generated by Eclipse.
-	 */
-	private static final long serialVersionUID = -2621498096616187384L;
-
-	/**
-	 * Default number of milliseconds until a packet will rejected.
-	 */
-	public static final int DEFAULT_TIMEOUT_DELTA = 60000;
-	
-	/**
-	 * Default number of packets to skip.
-	 */
-	public static final int DEFAULT_SENDING_DELTA = 0;
-	
-	/**
-	 * The packet stream responsible for transmitting the packet when it's done processing.
-	 */
-	private transient PacketStream packetStream;
-	
-	/**
-	 * Current list of async packet listeners.
-	 */
-	private transient Iterator<PrioritizedListener<AsyncListenerHandler>> listenerTraversal;
-	
-	// Timeout handling
-	private long initialTime;
-	private long timeout;
-	
-	// Packet order
-	private long originalSendingIndex;
-	private long newSendingIndex;
-	
-	// Whether or not the packet has been processed by the listeners
-	private volatile boolean processed;
-	
-	// Whether or not the packet has been sent
-	private volatile boolean transmitted;
-	
-	// Whether or not the asynchronous processing itself should be cancelled
-	private volatile boolean asyncCancelled;
-	
-	// Determine if Minecraft processes this packet asynchronously
-	private static Method isMinecraftAsync;
-	private static boolean alwaysSync;
-
-	/**
-	 * Create a container for asyncronous packets.
-	 * @param initialTime - the current time in milliseconds since 01.01.1970 00:00.
-	 */
-	AsyncMarker(PacketStream packetStream, long sendingIndex, long sendingDelta, long initialTime, long timeoutDelta) {
-		if (packetStream == null)
-			throw new IllegalArgumentException("packetStream cannot be NULL");
-		
-		this.packetStream = packetStream;
-		
-		// Timeout
-		this.initialTime = initialTime;
-		this.timeout = initialTime + timeoutDelta;
-		
-		// Sending index
-		this.originalSendingIndex = sendingIndex;
-		this.newSendingIndex = sendingIndex;
-	}
-	
-	/**
-	 * Retrieve the time the packet was initially queued for asynchronous processing.
-	 * @return The initial time in number of milliseconds since 01.01.1970 00:00. 
-	 */
-	public long getInitialTime() {
-		return initialTime;
-	}	
-
-	/**
-	 * Retrieve the time the packet will be forcefully rejected.
-	 * @return The time to reject the packet, in milliseconds since 01.01.1970 00:00.
-	 */
-	public long getTimeout() {
-		return timeout;
-	}
-	
-	/**
-	 * Set the time the packet will be forcefully rejected.
-	 * @param timeout - time to reject the packet, in milliseconds since 01.01.1970 00:00.
-	 */
-	public void setTimeout(long timeout) {
-		this.timeout = timeout;
-	}
-
-	/**
-	 * Retrieve the order the packet was originally transmitted.
-	 * @return The original packet index.
-	 */
-	public long getOriginalSendingIndex() {
-		return originalSendingIndex;
-	}
-
-	/**
-	 * Retrieve the desired sending order after processing has completed.
-	 * <p>
-	 * Higher sending order means lower priority.
-	 * @return Desired sending order.
-	 */
-	public long getNewSendingIndex() {
-		return newSendingIndex;
-	}
-
-	/**
-	 * Sets the desired sending order after processing has completed.
-	 * <p>
-	 * Higher sending order means lower priority.
-	 * @param newSendingIndex - new packet send index.
-	 */
-	public void setNewSendingIndex(long newSendingIndex) {
-		this.newSendingIndex = newSendingIndex;
-	}
-
-	/**
-	 * Retrieve the packet stream responsible for transmitting this packet.
-	 * @return The packet stream.
-	 */
-	public PacketStream getPacketStream() {
-		return packetStream;
-	}
-
-	/**
-	 * Sets the output packet stream responsible for transmitting this packet.
-	 * @param packetStream - new output packet stream.
-	 */
-	public void setPacketStream(PacketStream packetStream) {
-		this.packetStream = packetStream;
-	}
-
-	/**
-	 * Retrieve whether or not this packet has been processed by the async listeners.
-	 * @return TRUE if it has been processed, FALSE otherwise.
-	 */
-	public boolean isProcessed() {
-		return processed;
-	}
-
-	/**
-	 * Sets whether or not this packet has been processed by the async listeners.
-	 * @param processed - TRUE if it has, FALSE otherwise.
-	 */
-	void setProcessed(boolean processed) {
-		this.processed = processed;
-	}
-
-	/**
-	 * Retrieve whether or not this packet has already been sent.
-	 * @return TRUE if it has been sent before, FALSE otherwise.
-	 */
-	public boolean isTransmitted() {
-		return transmitted;
-	}
-
-	/**
-	 * Determine if this packet has expired.
-	 * @return TRUE if it has, FALSE otherwise.
-	 */
-	public boolean hasExpired() {
-		return hasExpired(System.currentTimeMillis());
-	}
-	
-	/**
-	 * Determine if this packet has expired given this time.
-	 * @param currentTime - the current time in milliseconds since 01.01.1970 00:00.
-	 * @return TRUE if it has, FALSE otherwise.
-	 */
-	public boolean hasExpired(long currentTime) {
-		return timeout < currentTime;
-	}
-	
-	/**
-	 * Determine if the asynchronous handling should be cancelled.
-	 * @return TRUE if it should, FALSE otherwise.
-	 */
-	public boolean isAsyncCancelled() {
-		return asyncCancelled;
-	}
-
-	/**
-	 * Set whether or not the asynchronous handling should be cancelled.
-	 * @param asyncCancelled - TRUE to cancel it, FALSE otherwise.
-	 */
-	public void setAsyncCancelled(boolean asyncCancelled) {
-		this.asyncCancelled = asyncCancelled;
-	}
-	
-	/**
-	 * Retrieve iterator for the next listener in line.
-	 * @return Next async packet listener iterator.
-	 */
-	public Iterator<PrioritizedListener<AsyncListenerHandler>> getListenerTraversal() {
-		return listenerTraversal;
-	}
-	
-	/**
-	 * Set the iterator for the next listener.
-	 * @param listenerTraversal - the new async packet listener iterator.
-	 */
-	void setListenerTraversal(Iterator<PrioritizedListener<AsyncListenerHandler>> listenerTraversal) {
-		this.listenerTraversal = listenerTraversal;
-	}
-	
-	/**
-	 * Transmit a given packet to the current packet stream.
-	 * @param event - the packet to send.
-	 * @throws IOException If the packet couldn't be sent.
-	 */
-	public void sendPacket(PacketEvent event) throws IOException {
-		try {
-			if (event.isServerPacket()) {
-				packetStream.sendServerPacket(event.getPlayer(), event.getPacket(), false);
-			} else {
-				packetStream.recieveClientPacket(event.getPlayer(), event.getPacket(), false);
-			}
-			transmitted = true;
-			
-		} catch (InvocationTargetException e) {
-			throw new IOException("Cannot send packet", e);
-		} catch (IllegalAccessException e) {
-			throw new IOException("Cannot send packet", e);
-		}
-	}
-	
-	/**
-	 * Determine if Minecraft allows asynchronous processing of this packet.
-	 * @return TRUE if it does, FALSE otherwise.
-	 */
-	public boolean isMinecraftAsync(PacketEvent event) throws FieldAccessException {
-		
-		if (isMinecraftAsync == null && !alwaysSync) {
-			try {
-				isMinecraftAsync = FuzzyReflection.fromClass(Packet.class).getMethodByName("a_.*");
-			} catch (RuntimeException e) {
-				// This will occur in 1.2.5 (or possibly in later versions)
-				List<Method> methods = FuzzyReflection.fromClass(Packet.class).
-										getMethodListByParameters(boolean.class, new Class[] {});
-				
-				// Try to look for boolean methods
-				if (methods.size() == 2) {
-					isMinecraftAsync = methods.get(1);
-				} else if (methods.size() == 1) {
-					// We're in 1.2.5
-					alwaysSync = true;
-				} else {
-					System.err.println("Cannot determine asynchronous state of packets!");
-					alwaysSync = true;
-				}
-			}
-		}
-		
-		if (alwaysSync) {
-			return false;
-		} else {
-			try {
-				// Wrap exceptions 
-				return (Boolean) isMinecraftAsync.invoke(event.getPacket().getHandle());
-			} catch (IllegalArgumentException e) {
-				throw new FieldAccessException("Illegal argument", e);
-			} catch (IllegalAccessException e) {
-				throw new FieldAccessException("Unable to reflect method call 'a_', or: isAsyncPacket.", e);
-			} catch (InvocationTargetException e) {
-				throw new FieldAccessException("Minecraft error", e);
-			}
-		}
-	}
-	
-	@Override
-	public int compareTo(AsyncMarker o) {
-		if (o == null)
-			return 1;
-		else
-			return Longs.compare(getNewSendingIndex(), o.getNewSendingIndex());
-	}
-}
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.async;
+
+import java.io.IOException;
+import java.io.Serializable;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Iterator;
+import java.util.List;
+import java.util.concurrent.atomic.AtomicInteger;
+import java.util.logging.Level;
+
+import com.comphenix.protocol.PacketStream;
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLogger;
+import com.comphenix.protocol.events.NetworkMarker;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.injector.PrioritizedListener;
+import com.comphenix.protocol.reflect.FieldAccessException;
+import com.comphenix.protocol.reflect.FuzzyReflection;
+import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.utility.MinecraftVersion;
+import com.google.common.primitives.Longs;
+
+/**
+ * Contains information about the packet that is being processed by asynchronous listeners.
+ * <p>
+ * Asynchronous listeners can use this to set packet timeout or transmission order.
+ * 
+ * @author Kristian
+ */
+public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
+		
+	/**
+	 * Generated by Eclipse.
+	 */
+	private static final long serialVersionUID = -2621498096616187384L;
+
+	/**
+	 * Default number of milliseconds until a packet will rejected.
+	 */
+	public static final int DEFAULT_TIMEOUT_DELTA = 1800 * 1000;
+	
+	/**
+	 * Default number of packets to skip.
+	 */
+	public static final int DEFAULT_SENDING_DELTA = 0;
+	
+	/**
+	 * The packet stream responsible for transmitting the packet when it's done processing.
+	 */
+	private transient PacketStream packetStream;
+	
+	/**
+	 * Current list of async packet listeners.
+	 */
+	private transient Iterator<PrioritizedListener<AsyncListenerHandler>> listenerTraversal;
+	
+	// Timeout handling
+	private long initialTime;
+	private long timeout;
+	
+	// Packet order
+	private long originalSendingIndex;
+	private long newSendingIndex;
+	
+	// Used to determine if a packet must be reordered in the sending queue
+	private Long queuedSendingIndex;
+	
+	// Whether or not the packet has been processed by the listeners
+	private volatile boolean processed;
+	
+	// Whether or not the packet has been sent
+	private volatile boolean transmitted;
+	
+	// Whether or not the asynchronous processing itself should be cancelled
+	private volatile boolean asyncCancelled;
+	
+		// Whether or not to delay processing
+	private AtomicInteger processingDelay = new AtomicInteger();
+	
+	// Used to synchronize processing on the shared PacketEvent
+	private Object processingLock = new Object();
+	
+	// Used to identify the asynchronous worker
+	private transient AsyncListenerHandler listenerHandler;
+	private transient int workerID;
+	
+	// Determine if Minecraft processes this packet asynchronously
+	private volatile static Method isMinecraftAsync;
+	private volatile static boolean alwaysSync;
+
+	/**
+	 * Create a container for asyncronous packets.
+	 * @param initialTime - the current time in milliseconds since 01.01.1970 00:00.
+	 */
+	AsyncMarker(PacketStream packetStream, long sendingIndex, long initialTime, long timeoutDelta) {
+		if (packetStream == null)
+			throw new IllegalArgumentException("packetStream cannot be NULL");
+		
+		this.packetStream = packetStream;
+		
+		// Timeout
+		this.initialTime = initialTime;
+		this.timeout = initialTime + timeoutDelta;
+		
+		// Sending index
+		this.originalSendingIndex = sendingIndex;
+		this.newSendingIndex = sendingIndex;
+	}
+	
+	/**
+	 * Retrieve the time the packet was initially queued for asynchronous processing.
+	 * @return The initial time in number of milliseconds since 01.01.1970 00:00.
+	 */
+	public long getInitialTime() {
+		return initialTime;
+	}
+
+	/**
+	 * Retrieve the time the packet will be forcefully rejected.
+	 * @return The time to reject the packet, in milliseconds since 01.01.1970 00:00.
+	 */
+	public long getTimeout() {
+		return timeout;
+	}
+	
+	/**
+	 * Set the time the packet will be forcefully rejected.
+	 * @param timeout - time to reject the packet, in milliseconds since 01.01.1970 00:00.
+	 */
+	public void setTimeout(long timeout) {
+		this.timeout = timeout;
+	}
+
+	/**
+	 * Retrieve the order the packet was originally transmitted.
+	 * @return The original packet index.
+	 */
+	public long getOriginalSendingIndex() {
+		return originalSendingIndex;
+	}
+
+	/**
+	 * Retrieve the desired sending order after processing has completed.
+	 * <p>
+	 * Higher sending order means lower priority.
+	 * @return Desired sending order.
+	 */
+	public long getNewSendingIndex() {
+		return newSendingIndex;
+	}
+
+	/**
+	 * Sets the desired sending order after processing has completed.
+	 * <p>
+	 * Higher sending order means lower priority.
+	 * @param newSendingIndex - new packet send index.
+	 */
+	public void setNewSendingIndex(long newSendingIndex) {
+		this.newSendingIndex = newSendingIndex;
+	}
+
+	/**
+	 * Retrieve the packet stream responsible for transmitting this packet.
+	 * @return The packet stream.
+	 */
+	public PacketStream getPacketStream() {
+		return packetStream;
+	}
+
+	/**
+	 * Sets the output packet stream responsible for transmitting this packet.
+	 * @param packetStream - new output packet stream.
+	 */
+	public void setPacketStream(PacketStream packetStream) {
+		this.packetStream = packetStream;
+	}
+
+	/**
+	 * Retrieve whether or not this packet has been processed by the async listeners.
+	 * @return TRUE if it has been processed, FALSE otherwise.
+	 */
+	public boolean isProcessed() {
+		return processed;
+	}
+
+	/**
+	 * Sets whether or not this packet has been processed by the async listeners.
+	 * @param processed - TRUE if it has, FALSE otherwise.
+	 */
+	void setProcessed(boolean processed) {
+		this.processed = processed;
+	}
+
+	/**
+	 * Increment the number of times the current packet must be signalled as done before its transmitted.
+	 * <p>
+	 * This is useful if an asynchronous listener is waiting for further information before the
+	 * packet can be sent to the user. A packet listener <b>MUST</b> eventually call
+	 * {@link AsyncFilterManager#signalPacketTransmission(PacketEvent)},
+	 * even if the packet is cancelled, after this method is called.
+	 * <p>
+	 * It is recommended that processing outside a packet listener is wrapped in a synchronized block
+	 * using the {@link #getProcessingLock()} method.
+	 * 
+	 * @return The new processing delay.
+	 */
+	public int incrementProcessingDelay() {
+		return processingDelay.incrementAndGet();
+	}
+	
+	/**
+	 * Decrement the number of times this packet must be signalled as done before it's transmitted.
+	 * @return The new processing delay. If zero, the packet should be sent.
+	 */
+	int decrementProcessingDelay() {
+		return processingDelay.decrementAndGet();
+	}
+	
+	/**
+	 * Retrieve the number of times a packet must be signalled to be done before it's sent.
+	 * @return Number of processing delays.
+	 */
+	public int getProcessingDelay() {
+		return processingDelay.get();
+	}
+	
+	/**
+	 * Whether or not this packet is or has been queued for processing.
+	 * @return TRUE if it has, FALSE otherwise.
+	 */
+	public boolean isQueued() {
+		return queuedSendingIndex != null;
+	}
+
+	/**
+	 * Retrieve the sending index when the packet was queued.
+	 * @return Queued sending index.
+	 */
+	public long getQueuedSendingIndex() {
+		return queuedSendingIndex != null ? queuedSendingIndex : 0;
+	}
+
+	/**
+	 * Set the sending index when the packet was queued.
+	 * @param queuedSendingIndex - sending index.
+	 */
+	void setQueuedSendingIndex(Long queuedSendingIndex) {
+		this.queuedSendingIndex = queuedSendingIndex;
+	}
+
+	/**
+	 * Processing lock used to synchronize access to the parent PacketEvent and PacketContainer.
+	 * <p>
+	 * This lock is automatically acquired for every asynchronous packet listener. It should only be
+	 * used to synchronize access to a PacketEvent if it's processing has been delayed.
+	 * @return A processing lock.
+	 */
+	public Object getProcessingLock() {
+		return processingLock;
+	}
+
+	public void setProcessingLock(Object processingLock) {
+		this.processingLock = processingLock;
+	}
+
+	/**
+	 * Retrieve whether or not this packet has already been sent.
+	 * @return TRUE if it has been sent before, FALSE otherwise.
+	 */
+	public boolean isTransmitted() {
+		return transmitted;
+	}
+
+	/**
+	 * Determine if this packet has expired.
+	 * @return TRUE if it has, FALSE otherwise.
+	 */
+	public boolean hasExpired() {
+		return hasExpired(System.currentTimeMillis());
+	}
+	
+	/**
+	 * Determine if this packet has expired given this time.
+	 * @param currentTime - the current time in milliseconds since 01.01.1970 00:00.
+	 * @return TRUE if it has, FALSE otherwise.
+	 */
+	public boolean hasExpired(long currentTime) {
+		return timeout < currentTime;
+	}
+	
+	/**
+	 * Determine if the asynchronous handling should be cancelled.
+	 * @return TRUE if it should, FALSE otherwise.
+	 */
+	public boolean isAsyncCancelled() {
+		return asyncCancelled;
+	}
+
+	/**
+	 * Set whether or not the asynchronous handling should be cancelled.
+	 * <p>
+	 * This is only relevant during the synchronous processing. Asynchronous
+	 * listeners should use the normal cancel-field to cancel a PacketEvent.
+	 * 
+	 * @param asyncCancelled - TRUE to cancel it, FALSE otherwise.
+	 */
+	public void setAsyncCancelled(boolean asyncCancelled) {
+		this.asyncCancelled = asyncCancelled;
+	}
+
+	/**
+	 * Retrieve the current asynchronous listener handler.
+	 * @return Asychronous listener handler, or NULL if this packet is not asynchronous.
+	 */
+	public AsyncListenerHandler getListenerHandler() {
+		return listenerHandler;
+	}
+
+	/**
+	 * Set the current asynchronous listener handler.
+	 * <p>
+	 * Used by the worker to update the value.
+	 * @param listenerHandler - new listener handler.
+	 */
+	void setListenerHandler(AsyncListenerHandler listenerHandler) {
+		this.listenerHandler = listenerHandler;
+	}
+
+	/**
+	 * Retrieve the current worker ID.
+	 * @return Current worker ID.
+	 */
+	public int getWorkerID() {
+		return workerID;
+	}
+
+	/**
+	 * Set the current worker ID.
+	 * <p>
+	 * Used by the worker.
+	 * @param workerID - new worker ID.
+	 */
+	void setWorkerID(int workerID) {
+		this.workerID = workerID;
+	}
+
+	/**
+	 * Retrieve iterator for the next listener in line.
+	 * @return Next async packet listener iterator.
+	 */
+	Iterator<PrioritizedListener<AsyncListenerHandler>> getListenerTraversal() {
+		return listenerTraversal;
+	}
+	
+	/**
+	 * Set the iterator for the next listener.
+	 * @param listenerTraversal - the new async packet listener iterator.
+	 */
+	void setListenerTraversal(Iterator<PrioritizedListener<AsyncListenerHandler>> listenerTraversal) {
+		this.listenerTraversal = listenerTraversal;
+	}
+	
+	/**
+	 * Transmit a given packet to the current packet stream.
+	 * @param event - the packet to send.
+	 * @throws IOException If the packet couldn't be sent.
+	 */
+	void sendPacket(PacketEvent event) throws IOException {
+		try {
+			if (event.isServerPacket()) {
+				packetStream.sendServerPacket(event.getPlayer(), event.getPacket(), NetworkMarker.getNetworkMarker(event), false);
+			} else {
+				packetStream.recieveClientPacket(event.getPlayer(), event.getPacket(), NetworkMarker.getNetworkMarker(event), false);
+			}
+			transmitted = true;
+			
+		} catch (InvocationTargetException e) {
+			throw new IOException("Cannot send packet", e);
+		} catch (IllegalAccessException e) {
+			throw new IOException("Cannot send packet", e);
+		}
+	}
+	
+	/**
+	 * Determine if Minecraft allows asynchronous processing of this packet.
+	 * @param event - packet event
+	 * @return TRUE if it does, FALSE otherwise.
+	 * @throws FieldAccessException If determining fails for some reasaon
+	 */
+	public boolean isMinecraftAsync(PacketEvent event) throws FieldAccessException {
+		if (isMinecraftAsync == null && !alwaysSync) {
+			try {
+				isMinecraftAsync = FuzzyReflection.fromClass(MinecraftReflection.getPacketClass()).getMethodByName("a_.*");
+			} catch (RuntimeException e) {
+				// This will occur in 1.2.5 (or possibly in later versions)
+				List<Method> methods = FuzzyReflection.fromClass(MinecraftReflection.getPacketClass()).
+										getMethodListByParameters(boolean.class, new Class[] {});
+				
+				// Try to look for boolean methods
+				if (methods.size() == 2) {
+					isMinecraftAsync = methods.get(1);
+				} else if (methods.size() == 1) {
+					// We're in 1.2.5
+					alwaysSync = true;
+				} else if (MinecraftVersion.getCurrentVersion().isAtLeast(MinecraftVersion.BOUNTIFUL_UPDATE)) {
+					// The centralized async marker was removed in 1.8
+					// Incoming chat packets can be async
+					if (event.getPacketType() == PacketType.Play.Client.CHAT) {
+						String content = event.getPacket().getStrings().readSafely(0);
+						if (content != null) {
+							// Incoming chat packets are async only if they aren't commands
+							return ! content.startsWith("/");
+						} else {
+							ProtocolLogger.log(Level.WARNING, "Failed to determine contents of incoming chat packet!");
+							alwaysSync = true;
+						}
+					} else if (event.getPacketType() == PacketType.Status.Server.SERVER_INFO) {
+						return true;
+					} else {
+						// TODO: Find more cases of async packets
+						return false;
+					}
+				} else {
+					ProtocolLogger.log(Level.INFO, "Could not determine asynchronous state of packets (this can probably be ignored)");
+					alwaysSync = true;
+				}
+			}
+		}
+
+		if (alwaysSync) {
+			return false;
+		} else {
+			try {
+				// Wrap exceptions
+				return (Boolean) isMinecraftAsync.invoke(event.getPacket().getHandle());
+			} catch (IllegalArgumentException e) {
+				throw new FieldAccessException("Illegal argument", e);
+			} catch (IllegalAccessException e) {
+				throw new FieldAccessException("Unable to reflect method call 'a_', or: isAsyncPacket.", e);
+			} catch (InvocationTargetException e) {
+				throw new FieldAccessException("Minecraft error", e);
+			}
+		}
+	}
+	
+	@Override
+	public int compareTo(AsyncMarker o) {
+		if (o == null)
+			return 1;
+		else
+			return Longs.compare(getNewSendingIndex(), o.getNewSendingIndex());
+	}
+	
+	@Override
+	public boolean equals(Object other) {
+		// Standard equals
+		if (other == this)
+			return true;
+		if (other instanceof AsyncMarker)
+			return getNewSendingIndex() == ((AsyncMarker) other).getNewSendingIndex();
+		else
+			return false;
+	}
+	
+	@Override
+	public int hashCode() {
+		return Longs.hashCode(getNewSendingIndex());
+	}
+}

src/main/java/com/comphenix/protocol/async/AsyncRunnable.java

@@ -0,0 +1,53 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program;
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.async;
+
+/**
+ * A runnable representing a asynchronous event listener.
+ * 
+ * @author Kristian
+ */
+public interface AsyncRunnable extends Runnable {
+	
+	/**
+	 * Retrieve a unique worker ID.
+	 * @return Unique worker ID.
+	 */
+	public int getID();
+	
+	/**
+	 * Stop the given runnable.
+	 * <p>
+	 * This may not occur right away.
+	 * @return TRUE if the thread was stopped, FALSE if it was already stopped.
+	 * @throws InterruptedException if it is interrupted
+	 */
+	public boolean stop() throws InterruptedException;
+	
+	/**
+	 * Determine if we're running or not.
+	 * @return TRUE if we're running, FALSE otherwise.
+	 */
+	public boolean isRunning();
+
+	/**
+	 * Determine if this runnable has already run its course.
+	 * @return TRUE if it has been stopped, FALSE otherwise.
+	 */
+	boolean isFinished();
+}

src/main/java/com/comphenix/protocol/async/NullPacketListener.java

@@ -1,62 +1,81 @@
-package com.comphenix.protocol.async;
-
-import org.bukkit.plugin.Plugin;
-
-import com.comphenix.protocol.events.ListenerPriority;
-import com.comphenix.protocol.events.ListeningWhitelist;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.events.PacketListener;
-
-/**
- * Represents a NO OPERATION listener.
- * 
- * @author Kristian
- */
-class NullPacketListener implements PacketListener {
-	
-	private ListeningWhitelist sendingWhitelist;
-	private ListeningWhitelist receivingWhitelist;
-	private Plugin plugin;
-
-	/**
-	 * Create a no-op listener with the same whitelist and plugin as the given listener.
-	 * @param original - the packet listener to copy.
-	 */
-	public NullPacketListener(PacketListener original) {
-		this.sendingWhitelist = cloneWhitelist(ListenerPriority.LOW, original.getSendingWhitelist());
-		this.receivingWhitelist = cloneWhitelist(ListenerPriority.LOW, original.getReceivingWhitelist());
-		this.plugin = original.getPlugin();
-	}
-
-	@Override
-	public void onPacketSending(PacketEvent event) {
-		// NULL
-	}
-
-	@Override
-	public void onPacketReceiving(PacketEvent event) {
-		// NULL
-	}
-
-	@Override
-	public ListeningWhitelist getSendingWhitelist() {
-		return sendingWhitelist;
-	}
-
-	@Override
-	public ListeningWhitelist getReceivingWhitelist() {
-		return receivingWhitelist;
-	}
-	
-	private ListeningWhitelist cloneWhitelist(ListenerPriority priority, ListeningWhitelist whitelist) {
-		if (whitelist != null) 
-			return new ListeningWhitelist(priority, whitelist.getWhitelist());
-		else 
-			return null;
-	}
-
-	@Override
-	public Plugin getPlugin() {
-		return plugin;
-	}
-}
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.async;
+
+import org.bukkit.plugin.Plugin;
+
+import com.comphenix.protocol.events.ListenerOptions;
+import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.events.PacketListener;
+
+/**
+ * Represents a NO OPERATION listener.
+ * 
+ * @author Kristian
+ */
+class NullPacketListener implements PacketListener {
+	
+	private ListeningWhitelist sendingWhitelist;
+	private ListeningWhitelist receivingWhitelist;
+	private Plugin plugin;
+
+	/**
+	 * Create a no-op listener with the same whitelist and plugin as the given listener.
+	 * @param original - the packet listener to copy.
+	 */
+	public NullPacketListener(PacketListener original) {
+		this.sendingWhitelist = cloneWhitelist(ListenerPriority.LOW, original.getSendingWhitelist());
+		this.receivingWhitelist = cloneWhitelist(ListenerPriority.LOW, original.getReceivingWhitelist());
+		this.plugin = original.getPlugin();
+	}
+
+	@Override
+	public void onPacketSending(PacketEvent event) {
+		// NULL
+	}
+
+	@Override
+	public void onPacketReceiving(PacketEvent event) {
+		// NULL
+	}
+
+	@Override
+	public ListeningWhitelist getSendingWhitelist() {
+		return sendingWhitelist;
+	}
+
+	@Override
+	public ListeningWhitelist getReceivingWhitelist() {
+		return receivingWhitelist;
+	}
+	
+	private ListeningWhitelist cloneWhitelist(ListenerPriority priority, ListeningWhitelist whitelist) {
+		if (whitelist != null) 
+			// We don't use the Bukkit API, so don't engage the ProtocolLib synchronization code
+			return ListeningWhitelist.newBuilder(whitelist).priority(priority).mergeOptions(ListenerOptions.ASYNC).build();
+		else 
+			return null;
+	}
+
+	@Override
+	public Plugin getPlugin() {
+		return plugin;
+	}
+}

src/main/java/com/comphenix/protocol/async/PacketEventHolder.java

@@ -0,0 +1,76 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.async;
+
+import com.comphenix.protocol.events.PacketEvent;
+import com.google.common.base.Preconditions;
+import com.google.common.collect.ComparisonChain;
+import com.google.common.primitives.Longs;
+
+/**
+ * Provides a comparable to a packet event.
+ * 
+ * @author Kristian
+ */
+class PacketEventHolder implements Comparable<PacketEventHolder> {
+
+	private PacketEvent event;
+	private long sendingIndex = 0;
+	
+	/**
+	 * A wrapper that ensures the packet event is ordered by sending index.
+	 * @param event - packet event to wrap.
+	 */
+	public PacketEventHolder(PacketEvent event) {
+		this.event = Preconditions.checkNotNull(event, "Event must be non-null");
+		
+		if (event.getAsyncMarker() != null)
+			this.sendingIndex = event.getAsyncMarker().getNewSendingIndex();
+	}
+
+	/**
+	 * Retrieve the stored event.
+	 * @return The stored event.
+	 */
+	public PacketEvent getEvent() {
+		return event;
+	}
+	
+	@Override
+	public int compareTo(PacketEventHolder other) {
+		return ComparisonChain.start().
+			   compare(sendingIndex, other.sendingIndex).
+			   result();
+	}
+	
+	@Override
+	public boolean equals(Object other) {
+		// Standard equals
+		if (other == this)
+			return true;
+		if (other instanceof PacketEventHolder)
+			return sendingIndex == ((PacketEventHolder) other).sendingIndex;
+		else
+			return false;
+	}
+	
+	@Override
+	public int hashCode() {
+		return Longs.hashCode(sendingIndex);
+	}
+}

src/main/java/com/comphenix/protocol/async/PacketProcessingQueue.java

@@ -1,144 +1,196 @@
-package com.comphenix.protocol.async;
-
-import java.util.Collection;
-import java.util.Iterator;
-import java.util.Queue;
-import java.util.concurrent.Semaphore;
-
-import com.comphenix.protocol.concurrency.AbstractConcurrentListenerMultimap;
-import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.injector.PrioritizedListener;
-import com.google.common.collect.MinMaxPriorityQueue;
-
-
-/**
- * Handles the processing of every packet type.
- * 
- * @author Kristian
- */
-class PacketProcessingQueue extends AbstractConcurrentListenerMultimap<AsyncListenerHandler> {
-
-	// Initial number of elements
-	public static final int INITIAL_CAPACITY = 64;
-	
-	/**
-	 * Default maximum number of packets to process concurrently.
-	 */
-	public static final int DEFAULT_MAXIMUM_CONCURRENCY = 32;
-	
-	/**
-	 * Default maximum number of packets to queue for processing.
-	 */
-	public static final int DEFAULT_QUEUE_LIMIT = 1024 * 60;
-	
-	/**
-	 * Number of packets we're processing concurrently.
-	 */
-	private final int maximumConcurrency;
-	private Semaphore concurrentProcessing;
-	
-	// Queued packets for being processed
-	private Queue<PacketEventHolder> processingQueue;
-	
-	// Packets for sending
-	private PacketSendingQueue sendingQueue;
-
-	public PacketProcessingQueue(PacketSendingQueue sendingQueue) {
-		this(sendingQueue, INITIAL_CAPACITY, DEFAULT_QUEUE_LIMIT, DEFAULT_MAXIMUM_CONCURRENCY);
-	}
-	
-	public PacketProcessingQueue(PacketSendingQueue sendingQueue, int initialSize, int maximumSize, int maximumConcurrency) {
-		super();
-
-		this.processingQueue = Synchronization.queue(MinMaxPriorityQueue.
-				expectedSize(initialSize).
-				maximumSize(maximumSize).
-				<PacketEventHolder>create(), null);
-				
-		this.maximumConcurrency = maximumConcurrency;
-		this.concurrentProcessing = new Semaphore(maximumConcurrency);
-		this.sendingQueue = sendingQueue;
-	}
-	
-	/**
-	 * Enqueue a packet for processing by the asynchronous listeners.
-	 * @param packet - packet to process.
-	 * @param onMainThread - whether or not this is occuring on the main thread.
-	 * @return TRUE if we sucessfully queued the packet, FALSE if the queue ran out if space.
-	 */
-	public boolean enqueue(PacketEvent packet, boolean onMainThread) {
-		try {
-			processingQueue.add(new PacketEventHolder(packet));
-			
-			// Begin processing packets
-			signalBeginProcessing(onMainThread);
-			return true;
-		} catch (IllegalStateException e) {
-			return false;
-		}
-	}
-	
-	/**
-	 * Called by the current method and each thread to signal that a packet might be ready for processing.
-	 * @param onMainThread - whether or not this is occuring on the main thread.
-	 */
-	public void signalBeginProcessing(boolean onMainThread) {	
-		while (concurrentProcessing.tryAcquire()) {
-			PacketEventHolder holder = processingQueue.poll();
-			
-			// Any packet queued?
-			if (holder != null) {
-				PacketEvent packet = holder.getEvent();
-				AsyncMarker marker = packet.getAsyncMarker();
-				Collection<PrioritizedListener<AsyncListenerHandler>> list = getListener(packet.getPacketID());
-				
-				// Yes, removing the marker will cause the chain to stop
-				if (list != null) {
-					Iterator<PrioritizedListener<AsyncListenerHandler>> iterator = list.iterator();
-					
-					if (iterator.hasNext()) {
-						marker.setListenerTraversal(iterator);
-						iterator.next().getListener().enqueuePacket(packet);
-						continue;
-					}
-				}
-				
-				// The packet has no further listeners. Just send it.
-				sendingQueue.signalPacketUpdate(packet, onMainThread);
-				signalProcessingDone();
-				
-			} else {
-				// No more queued packets.
-				signalProcessingDone();
-				return;
-			}
- 		}
-	}
-	
-	/**
-	 * Called when a packet has been processed.
-	 */
-	public void signalProcessingDone() {
-		concurrentProcessing.release();
-	}
-
-	/**
-	 * Retrieve the maximum number of packets to process at any given time.
-	 * @return Number of simultaneous packet to process.
-	 */
-	public int getMaximumConcurrency() {
-		return maximumConcurrency;
-	}
-	
-	public void cleanupAll() {
-		// Cancel all the threads and every listener
-		for (PrioritizedListener<AsyncListenerHandler> handler : values()) {
-			if (handler != null) {
-				handler.getListener().cancel();
-			}
-		}
-		
-		// Remove the rest, just in case
-		clearListeners();
-	}
-}
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.async;
+
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.PriorityQueue;
+import java.util.Queue;
+import java.util.concurrent.Semaphore;
+
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.concurrency.AbstractConcurrentListenerMultimap;
+import com.comphenix.protocol.error.Report;
+import com.comphenix.protocol.error.ReportType;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.injector.PrioritizedListener;
+import com.google.common.collect.MinMaxPriorityQueue;
+
+
+/**
+ * Handles the processing of every packet type.
+ * 
+ * @author Kristian
+ */
+class PacketProcessingQueue extends AbstractConcurrentListenerMultimap<AsyncListenerHandler> {
+	public static final ReportType REPORT_GUAVA_CORRUPT_MISSING = 
+			new ReportType("Guava is either missing or corrupt. Reverting to PriorityQueue.");
+
+	// Initial number of elements
+	public static final int INITIAL_CAPACITY = 64;
+	
+	/**
+	 * Default maximum number of packets to process concurrently.
+	 */
+	public static final int DEFAULT_MAXIMUM_CONCURRENCY = 32;
+	
+	/**
+	 * Default maximum number of packets to queue for processing.
+	 */
+	public static final int DEFAULT_QUEUE_LIMIT = 1024 * 60;
+	
+	/**
+	 * Number of packets we're processing concurrently.
+	 */
+	private final int maximumConcurrency;
+	private Semaphore concurrentProcessing;
+	
+	// Queued packets for being processed
+	private Queue<PacketEventHolder> processingQueue;
+	
+	// Packets for sending
+	private PlayerSendingHandler sendingHandler;
+	
+	public PacketProcessingQueue(PlayerSendingHandler sendingHandler) {
+		this(sendingHandler, INITIAL_CAPACITY, DEFAULT_QUEUE_LIMIT, DEFAULT_MAXIMUM_CONCURRENCY);
+	}
+	
+	public PacketProcessingQueue(PlayerSendingHandler sendingHandler, int initialSize, int maximumSize, int maximumConcurrency) {
+		super();
+
+		try {
+			this.processingQueue = Synchronization.queue(MinMaxPriorityQueue.
+					expectedSize(initialSize).
+					maximumSize(maximumSize).
+					<PacketEventHolder>create(), null);
+		} catch (IncompatibleClassChangeError e) {
+			// Print in the console
+			ProtocolLibrary.getErrorReporter().reportWarning(
+				this, Report.newBuilder(REPORT_GUAVA_CORRUPT_MISSING).error(e));
+			
+			// It's a Beta class after all
+			this.processingQueue = Synchronization.queue(
+					new PriorityQueue<PacketEventHolder>(), null);
+		}
+				
+		this.maximumConcurrency = maximumConcurrency;
+		this.concurrentProcessing = new Semaphore(maximumConcurrency);
+		this.sendingHandler = sendingHandler;
+	}
+	
+	/**
+	 * Enqueue a packet for processing by the asynchronous listeners.
+	 * @param packet - packet to process.
+	 * @param onMainThread - whether or not this is occuring on the main thread.
+	 * @return TRUE if we sucessfully queued the packet, FALSE if the queue ran out if space.
+	 */
+	public boolean enqueue(PacketEvent packet, boolean onMainThread) {
+		try {
+			processingQueue.add(new PacketEventHolder(packet));
+
+			// Begin processing packets
+			signalBeginProcessing(onMainThread);
+			return true;
+		} catch (IllegalStateException e) {
+			return false;
+		}
+	}
+	
+	/**
+	 * Number of packet events in the queue.
+	 * @return The number of packet events in the queue.
+	 */
+	public int size() {
+		return processingQueue.size();
+	}
+	
+	/**
+	 * Called by the current method and each thread to signal that a packet might be ready for processing.
+	 * @param onMainThread - whether or not this is occuring on the main thread.
+	 */
+	public void signalBeginProcessing(boolean onMainThread) {	
+		while (concurrentProcessing.tryAcquire()) {
+			PacketEventHolder holder = processingQueue.poll();
+			
+			// Any packet queued?
+			if (holder != null) {
+				PacketEvent packet = holder.getEvent();
+				AsyncMarker marker = packet.getAsyncMarker();
+				Collection<PrioritizedListener<AsyncListenerHandler>> list = getListener(packet.getPacketType());
+				
+				marker.incrementProcessingDelay();
+				
+				// Yes, removing the marker will cause the chain to stop
+				if (list != null) {
+					Iterator<PrioritizedListener<AsyncListenerHandler>> iterator = list.iterator();
+					
+					if (iterator.hasNext()) {
+						marker.setListenerTraversal(iterator);
+						iterator.next().getListener().enqueuePacket(packet);
+						continue;
+					}
+				}
+				
+				// The packet has no further listeners. Just send it.
+				if (marker.decrementProcessingDelay() == 0) {
+					PacketSendingQueue sendingQueue = sendingHandler.getSendingQueue(packet, false);
+					
+					// In case the player has logged out
+					if (sendingQueue != null)
+						sendingQueue.signalPacketUpdate(packet, onMainThread);
+				}
+				signalProcessingDone();
+				
+			} else {
+				// No more queued packets.
+				signalProcessingDone();
+				return;
+			}
+ 		}
+	}
+	
+	/**
+	 * Called when a packet has been processed.
+	 */
+	public void signalProcessingDone() {
+		concurrentProcessing.release();
+	}
+
+	/**
+	 * Retrieve the maximum number of packets to process at any given time.
+	 * @return Number of simultaneous packet to process.
+	 */
+	public int getMaximumConcurrency() {
+		return maximumConcurrency;
+	}
+	
+	public void cleanupAll() {
+		// Cancel all the threads and every listener
+		for (PrioritizedListener<AsyncListenerHandler> handler : values()) {
+			if (handler != null) {
+				handler.getListener().cancel();
+			}
+		}
+		
+		// Remove the rest, just in case
+		clearListeners();
+		
+		// Remove every packet in the queue
+		processingQueue.clear();
+	}
+}

src/main/java/com/comphenix/protocol/async/PacketSendingQueue.java

@@ -0,0 +1,307 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.async;
+
+import java.io.IOException;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.Executor;
+import java.util.concurrent.PriorityBlockingQueue;
+
+import org.bukkit.entity.Player;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.error.Report;
+import com.comphenix.protocol.error.ReportType;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.injector.PlayerLoggedOutException;
+import com.comphenix.protocol.reflect.FieldAccessException;
+
+/**
+ * Represents packets ready to be transmitted to a client.
+ * @author Kristian
+ */
+abstract class PacketSendingQueue {
+	public static final ReportType REPORT_DROPPED_PACKET = new ReportType("Warning: Dropped packet index %s of type %s.");
+	
+	public static final int INITIAL_CAPACITY = 10;
+	
+	private PriorityBlockingQueue<PacketEventHolder> sendingQueue;
+	
+	// Asynchronous packet sending
+	private Executor asynchronousSender;
+	// Whether or not packet transmission must occur on a specific thread
+	private final boolean notThreadSafe;
+	// Whether or not we've run the cleanup procedure
+	private boolean cleanedUp = false;
+	
+	/**
+	 * Create a packet sending queue.
+	 * @param notThreadSafe - whether or not to synchronize with the main thread or a background thread.
+	 */
+	public PacketSendingQueue(boolean notThreadSafe, Executor asynchronousSender) {
+		this.sendingQueue = new PriorityBlockingQueue<PacketEventHolder>(INITIAL_CAPACITY);
+		this.notThreadSafe = notThreadSafe;
+		this.asynchronousSender = asynchronousSender;
+	}
+	
+	/**
+	 * Number of packet events in the queue.
+	 * @return The number of packet events in the queue.
+	 */
+	public int size() {
+		return sendingQueue.size();
+	}
+	
+	/**
+	 * Enqueue a packet for sending. 
+	 * @param packet - packet to queue.
+	 */
+	public void enqueue(PacketEvent packet) {
+		sendingQueue.add(new PacketEventHolder(packet));
+	}
+	
+	/**
+	 * Invoked when one of the packets have finished processing.
+	 * @param packetUpdated - the packet that has now been updated.
+	 * @param onMainThread - whether or not this is occuring on the main thread.
+	 */
+	public synchronized void signalPacketUpdate(PacketEvent packetUpdated, boolean onMainThread) {
+		
+		AsyncMarker marker = packetUpdated.getAsyncMarker();
+		
+		// Should we reorder the event?
+		if (marker.getQueuedSendingIndex() != marker.getNewSendingIndex() && !marker.hasExpired()) {
+			PacketEvent copy = PacketEvent.fromSynchronous(packetUpdated, marker);
+			
+			// "Cancel" the original event
+			packetUpdated.setReadOnly(false);
+			packetUpdated.setCancelled(true);
+			
+			// Enqueue the copy with the new sending index
+			enqueue(copy);
+		}
+		
+		// Mark this packet as finished
+		marker.setProcessed(true);
+		trySendPackets(onMainThread);
+	}
+
+	/***
+	 * Invoked when a list of packet IDs are no longer associated with any listeners.
+	 * @param packetsRemoved - packets that no longer have any listeners.
+	 * @param onMainThread - whether or not this is occuring on the main thread.
+	 */
+	public synchronized void signalPacketUpdate(List<PacketType> packetsRemoved, boolean onMainThread) {
+		Set<PacketType> lookup = new HashSet<PacketType>(packetsRemoved);
+		
+		// Note that this is O(n), so it might be expensive
+		for (PacketEventHolder holder : sendingQueue) {
+			PacketEvent event = holder.getEvent();
+			
+			if (lookup.contains(event.getPacketType())) {
+				event.getAsyncMarker().setProcessed(true);
+			}
+		}
+		
+		// This is likely to have changed the situation a bit
+		trySendPackets(onMainThread);
+	}
+	
+	/**
+	 * Attempt to send any remaining packets.
+	 * @param onMainThread - whether or not this is occuring on the main thread.
+	 */
+	public void trySendPackets(boolean onMainThread) {
+		// Whether or not to continue sending packets
+		boolean sending = true;
+		
+		// Transmit as many packets as we can
+		while (sending) {
+			PacketEventHolder holder = sendingQueue.poll();
+			
+			if (holder != null) {
+				sending = processPacketHolder(onMainThread, holder);
+					
+				if (!sending) {
+					// Add it back again
+					sendingQueue.add(holder);
+				}
+				
+			} else {
+				// No more packets to send
+				sending = false;
+			}
+		}
+	}
+	
+	/**
+	 * Invoked when a packet might be ready for transmission.
+	 * @param onMainThread - TRUE if we're on the main thread, FALSE otherwise.
+	 * @param holder - packet container.
+	 * @return TRUE to continue sending packets, FALSE otherwise.
+	 */
+	private boolean processPacketHolder(boolean onMainThread, final PacketEventHolder holder) {
+		PacketEvent current = holder.getEvent();
+		AsyncMarker marker = current.getAsyncMarker();
+		boolean hasExpired = marker.hasExpired();
+		
+		// Guard in cause the queue is closed
+		if (cleanedUp) {
+			return true;
+		}
+				
+		// End condition?
+		if (marker.isProcessed() || hasExpired) {
+			if (hasExpired) {
+				// Notify timeout listeners
+				onPacketTimeout(current);
+				
+				// Recompute
+				marker = current.getAsyncMarker();
+				hasExpired = marker.hasExpired();
+				
+				// Could happen due to the timeout listeners
+				if (!marker.isProcessed() && !hasExpired) {
+					return false;
+				}
+			}
+			
+			// Is it okay to send the packet?
+			if (!current.isCancelled() && !hasExpired) {
+				// Make sure we're on the main thread
+				if (notThreadSafe) {
+					try {
+						boolean wantAsync = marker.isMinecraftAsync(current);
+						boolean wantSync = !wantAsync;
+						
+						// Wait for the next main thread heartbeat if we haven't fulfilled our promise
+						if (!onMainThread && wantSync) {
+							return false;
+						}
+						
+						// Let's give it what it wants
+						if (onMainThread && wantAsync) {
+							asynchronousSender.execute(new Runnable() {
+								@Override
+								public void run() {
+									// We know this isn't on the main thread
+									processPacketHolder(false, holder);
+								}
+							});
+							
+							// Scheduler will do the rest
+							return true;
+						}
+						
+					} catch (FieldAccessException e) {
+						e.printStackTrace();
+						
+						// Just drop the packet
+						return true;
+					}
+				} 
+				
+				// Silently skip players that have logged out
+				if (isOnline(current.getPlayer())) {
+					sendPacket(current);
+				}
+			} 
+			
+			// Drop the packet
+			return true;
+		}
+		
+		// Add it back and stop sending
+		return false;
+	}
+	
+	/**
+	 * Invoked when a packet has timed out.
+	 * @param event - the timed out packet.
+	 */
+	protected abstract void onPacketTimeout(PacketEvent event);
+	
+	private boolean isOnline(Player player) {
+		return player != null && player.isOnline();
+	}
+	
+	/**
+	 * Send every packet, regardless of the processing state.
+	 */
+	private void forceSend() {
+		while (true) {
+			PacketEventHolder holder = sendingQueue.poll();
+			
+			if (holder != null) {
+				sendPacket(holder.getEvent());
+			} else {
+				break;
+			}
+		}
+	}
+	
+	/**
+	 * Whether or not the packet transmission must synchronize with the main thread.
+	 * @return TRUE if it must, FALSE otherwise.
+	 */
+	public boolean isSynchronizeMain() {
+		return notThreadSafe;
+	}
+
+	/**
+	 * Transmit a packet, if it hasn't already.
+	 * @param event - the packet to transmit.
+	 */
+	private void sendPacket(PacketEvent event) {
+		
+		AsyncMarker marker = event.getAsyncMarker();
+		
+		try {
+			// Don't send a packet twice
+			if (marker != null && !marker.isTransmitted()) {
+				marker.sendPacket(event);
+			}
+		
+		} catch (PlayerLoggedOutException e) {
+			ProtocolLibrary.getErrorReporter().reportDebug(this, Report.newBuilder(REPORT_DROPPED_PACKET).
+				messageParam(marker.getOriginalSendingIndex(), event.getPacketType()).
+				callerParam(event)
+			);
+			
+		} catch (IOException e) {
+			// Just print the error
+			e.printStackTrace();
+		}
+	}
+
+	/**
+	 * Automatically transmits every delayed packet.
+	 */
+	public void cleanupAll() {
+		if (!cleanedUp) {
+			// Note that the cleanup itself will always occur on the main thread
+			forceSend();
+			
+			// And we're done
+			cleanedUp = true;
+		}
+	}
+}

src/main/java/com/comphenix/protocol/async/PlayerSendingHandler.java

@@ -0,0 +1,264 @@
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.async;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.ConcurrentMap;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ThreadFactory;
+
+import org.bukkit.entity.Player;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.concurrency.ConcurrentPlayerMap;
+import com.comphenix.protocol.error.ErrorReporter;
+import com.comphenix.protocol.events.PacketEvent;
+import com.comphenix.protocol.injector.SortedPacketListenerList;
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
+
+/**
+ * Contains every sending queue for every player.
+ * 
+ * @author Kristian
+ */
+class PlayerSendingHandler {
+	private ErrorReporter reporter;
+	private ConcurrentMap<Player, QueueContainer> playerSendingQueues;
+	
+	// Timeout listeners
+	private SortedPacketListenerList serverTimeoutListeners;
+	private SortedPacketListenerList clientTimeoutListeners;
+	
+	// Asynchronous packet sending
+	private Executor asynchronousSender;
+	
+	// Whether or not we're currently cleaning up
+	private volatile boolean cleaningUp;
+	
+	/**
+	 * Sending queues for a given player.
+	 * 
+	 * @author Kristian
+	 */
+	private class QueueContainer {
+		private PacketSendingQueue serverQueue;
+		private PacketSendingQueue clientQueue;
+		
+		public QueueContainer() {
+			// Server packets can be sent concurrently
+			serverQueue = new PacketSendingQueue(false, asynchronousSender) {
+				@Override
+				protected void onPacketTimeout(PacketEvent event) {
+					if (!cleaningUp) {
+						serverTimeoutListeners.invokePacketSending(reporter, event);
+					}
+				}
+			};
+			
+			// Client packets must be synchronized
+			clientQueue = new PacketSendingQueue(true, asynchronousSender) {
+				@Override
+				protected void onPacketTimeout(PacketEvent event) {
+					if (!cleaningUp) {
+						clientTimeoutListeners.invokePacketSending(reporter, event);
+					}
+				}
+			};
+		}
+
+		public PacketSendingQueue getServerQueue() {
+			return serverQueue;
+		}
+
+		public PacketSendingQueue getClientQueue() {
+			return clientQueue;
+		}
+	}
+	
+	/**
+	 * Initialize a packet sending handler.
+	 * @param reporter - error reporter.
+	 * @param serverTimeoutListeners - set of server timeout listeners.
+	 * @param clientTimeoutListeners - set of client timeout listeners.
+	 */
+	public PlayerSendingHandler(ErrorReporter reporter, 
+			SortedPacketListenerList serverTimeoutListeners, SortedPacketListenerList clientTimeoutListeners) {
+		
+		this.reporter = reporter;
+		this.serverTimeoutListeners = serverTimeoutListeners;
+		this.clientTimeoutListeners = clientTimeoutListeners;
+		
+		// Initialize storage of queues
+		this.playerSendingQueues = ConcurrentPlayerMap.usingAddress();
+	}
+	
+	/**
+	 * Start the asynchronous packet sender.
+	 */
+	public synchronized void initializeScheduler() {
+		if (asynchronousSender == null) {
+			ThreadFactory factory = new ThreadFactoryBuilder().
+				setDaemon(true).
+				setNameFormat("ProtocolLib-AsyncSender %s").
+				build();
+			asynchronousSender = Executors.newSingleThreadExecutor(factory);
+		}
+	}
+
+	/**
+	 * Retrieve the sending queue this packet belongs to.
+	 * @param packet - the packet.
+	 * @return The server or client sending queue the packet belongs to.
+	 */
+	public PacketSendingQueue getSendingQueue(PacketEvent packet) {
+		return getSendingQueue(packet, true);
+	}
+	
+	/**
+	 * Retrieve the sending queue this packet belongs to.
+	 * @param packet - the packet.
+	 * @param createNew - if TRUE, create a new queue if it hasn't already been created.
+	 * @return The server or client sending queue the packet belongs to.
+	 */
+	public PacketSendingQueue getSendingQueue(PacketEvent packet, boolean createNew) {
+		QueueContainer queues = playerSendingQueues.get(packet.getPlayer());
+		
+		// Safe concurrent initialization
+		if (queues == null && createNew) {
+			final QueueContainer newContainer = new QueueContainer();
+
+			// Attempt to map the queue
+			queues = playerSendingQueues.putIfAbsent(packet.getPlayer(), newContainer);
+			
+			if (queues == null) {
+				queues = newContainer;
+			}
+		}
+		
+		// Check for NULL again
+		if (queues != null)
+			return packet.isServerPacket() ? queues.getServerQueue() : queues.getClientQueue();
+		else
+			return null;
+	}
+
+	/**
+	 * Send all pending packets.
+	 */
+	public void sendAllPackets() {
+		if (!cleaningUp) {
+			for (QueueContainer queues : playerSendingQueues.values()) {
+				queues.getClientQueue().cleanupAll();
+				queues.getServerQueue().cleanupAll();
+			}
+		}
+	}
+	
+	/**
+	 * Immediately send every server packet with the given list of IDs.
+	 * @param types - types of every packet to send immediately.
+	 * @param synchronusOK - whether or not we're running on the main thread. 
+	 */
+	public void sendServerPackets(List<PacketType> types, boolean synchronusOK) {
+		if (!cleaningUp) {
+			for (QueueContainer queue : playerSendingQueues.values()) {
+				queue.getServerQueue().signalPacketUpdate(types, synchronusOK);
+			}
+		}
+	}
+	
+	/**
+	 * Immediately send every client packet with the given list of IDs.
+	 * @param ids - ID of every packet to send immediately.
+	 * @param synchronusOK - whether or not we're running on the main thread. 
+	 */
+	public void sendClientPackets(List<PacketType> types, boolean synchronusOK) {
+		if (!cleaningUp) {
+			for (QueueContainer queue : playerSendingQueues.values()) {
+				queue.getClientQueue().signalPacketUpdate(types, synchronusOK);
+			}
+		}
+	}
+	
+	/**
+	 * Send any outstanding server packets.
+	 * @param onMainThread - whether or not this is occuring on the main thread.
+	 */
+	public void trySendServerPackets(boolean onMainThread) {
+		for (QueueContainer queue : playerSendingQueues.values()) {
+			queue.getServerQueue().trySendPackets(onMainThread);
+		}
+	}
+	
+	/**
+	 * Send any outstanding server packets.
+	 * @param onMainThread - whether or not this is occuring on the main thread.
+	 */
+	public void trySendClientPackets(boolean onMainThread) {
+		for (QueueContainer queue : playerSendingQueues.values()) {
+			queue.getClientQueue().trySendPackets(onMainThread);
+		}
+	}
+	
+	/**
+	 * Retrieve every server packet queue for every player.
+	 * @return Every sever packet queue.
+	 */
+	public List<PacketSendingQueue> getServerQueues() {
+		List<PacketSendingQueue> result = new ArrayList<PacketSendingQueue>();
+		
+		for (QueueContainer queue : playerSendingQueues.values())
+			result.add(queue.getServerQueue());
+		return result;
+	}
+	
+	/**
+	 * Retrieve every client packet queue for every player.
+	 * @return Every client packet queue.
+	 */
+	public List<PacketSendingQueue> getClientQueues() {
+		List<PacketSendingQueue> result = new ArrayList<PacketSendingQueue>();
+		
+		for (QueueContainer queue : playerSendingQueues.values())
+			result.add(queue.getClientQueue());
+		return result;
+	}
+	
+	/**
+	 * Send all pending packets and clean up queues.
+	 */
+	public void cleanupAll() {
+		if (!cleaningUp) {
+			cleaningUp = true;
+			
+			sendAllPackets();
+			playerSendingQueues.clear();
+		}
+	}
+
+	/**
+	 * Invoked when a player has just logged out.
+	 * @param player - the player that just logged out.
+	 */
+	public void removePlayer(Player player) {
+		// Every packet will be dropped - there's nothing we can do
+		playerSendingQueues.remove(player);
+	}
+}

src/main/java/com/comphenix/protocol/async/Synchronization.java

@@ -1,211 +1,228 @@
-package com.comphenix.protocol.async;
-
-import java.io.Serializable;
-import java.util.Collection;
-import java.util.Iterator;
-import java.util.Queue;
-
-import javax.annotation.Nullable;
-
-import com.google.common.base.Preconditions;
-
-/**
- * Synchronization views copied from Google Guava.
- * 
- * @author Kristian
- */
-class Synchronization {
-
-	/**
-	 * Create a synchronized wrapper for the given queue.
-	 * <p>
-	 * This wrapper cannot synchronize the iterator(). Callers are expected 
-	 * to synchronize iterators manually.
-	 * @param queue - the queue to synchronize.
-	 * @param mutex - synchronization mutex, or NULL to use the queue.
-	 * @return A synchronization wrapper.
-	 */
-	public static <E> Queue<E> queue(Queue<E> queue, @Nullable Object mutex) {
-		return (queue instanceof SynchronizedQueue) ? 
-				queue : 
-					new SynchronizedQueue<E>(queue, mutex);
-	}
-	
-	private static class SynchronizedObject implements Serializable {
-		private static final long serialVersionUID = -4408866092364554628L;
-
-		final Object delegate;
-		final Object mutex;
-
-		SynchronizedObject(Object delegate, @Nullable Object mutex) {
-			this.delegate = Preconditions.checkNotNull(delegate);
-			this.mutex = (mutex == null) ? this : mutex;
-		}
-
-		Object delegate() {
-			return delegate;
-		}
-
-		// No equals and hashCode; see ForwardingObject for details.
-
-		@Override
-		public String toString() {
-			synchronized (mutex) {
-				return delegate.toString();
-			}
-		}
-	}
-
-	private static class SynchronizedCollection<E> extends SynchronizedObject implements Collection<E> {
-		private static final long serialVersionUID = 5440572373531285692L;
-
-		private SynchronizedCollection(Collection<E> delegate,
-				@Nullable Object mutex) {
-			super(delegate, mutex);
-		}
-
-		@SuppressWarnings("unchecked")
-		@Override
-		Collection<E> delegate() {
-			return (Collection<E>) super.delegate();
-		}
-
-		@Override
-		public boolean add(E e) {
-			synchronized (mutex) {
-				return delegate().add(e);
-			}
-		}
-
-		@Override
-		public boolean addAll(Collection<? extends E> c) {
-			synchronized (mutex) {
-				return delegate().addAll(c);
-			}
-		}
-
-		@Override
-		public void clear() {
-			synchronized (mutex) {
-				delegate().clear();
-			}
-		}
-
-		@Override
-		public boolean contains(Object o) {
-			synchronized (mutex) {
-				return delegate().contains(o);
-			}
-		}
-
-		@Override
-		public boolean containsAll(Collection<?> c) {
-			synchronized (mutex) {
-				return delegate().containsAll(c);
-			}
-		}
-
-		@Override
-		public boolean isEmpty() {
-			synchronized (mutex) {
-				return delegate().isEmpty();
-			}
-		}
-
-		@Override
-		public Iterator<E> iterator() {
-			return delegate().iterator(); // manually synchronized
-		}
-
-		@Override
-		public boolean remove(Object o) {
-			synchronized (mutex) {
-				return delegate().remove(o);
-			}
-		}
-
-		@Override
-		public boolean removeAll(Collection<?> c) {
-			synchronized (mutex) {
-				return delegate().removeAll(c);
-			}
-		}
-
-		@Override
-		public boolean retainAll(Collection<?> c) {
-			synchronized (mutex) {
-				return delegate().retainAll(c);
-			}
-		}
-
-		@Override
-		public int size() {
-			synchronized (mutex) {
-				return delegate().size();
-			}
-		}
-
-		@Override
-		public Object[] toArray() {
-			synchronized (mutex) {
-				return delegate().toArray();
-			}
-		}
-
-		@Override
-		public <T> T[] toArray(T[] a) {
-			synchronized (mutex) {
-				return delegate().toArray(a);
-			}
-		}
-
-	}
-
-	private static class SynchronizedQueue<E> extends SynchronizedCollection<E> implements Queue<E> {
-		private static final long serialVersionUID = 1961791630386791902L;
-
-		SynchronizedQueue(Queue<E> delegate, @Nullable Object mutex) {
-			super(delegate, mutex);
-		}
-
-		@Override
-		Queue<E> delegate() {
-			return (Queue<E>) super.delegate();
-		}
-
-		@Override
-		public E element() {
-			synchronized (mutex) {
-				return delegate().element();
-			}
-		}
-
-		@Override
-		public boolean offer(E e) {
-			synchronized (mutex) {
-				return delegate().offer(e);
-			}
-		}
-
-		@Override
-		public E peek() {
-			synchronized (mutex) {
-				return delegate().peek();
-			}
-		}
-
-		@Override
-		public E poll() {
-			synchronized (mutex) {
-				return delegate().poll();
-			}
-		}
-
-		@Override
-		public E remove() {
-			synchronized (mutex) {
-				return delegate().remove();
-			}
-		}
-	}
-}
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.async;
+
+import java.io.Serializable;
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.Queue;
+
+import javax.annotation.Nullable;
+
+import com.google.common.base.Preconditions;
+
+/**
+ * Synchronization views copied from Google Guava.
+ * 
+ * @author Kristian
+ */
+class Synchronization {
+
+	/**
+	 * Create a synchronized wrapper for the given queue.
+	 * <p>
+	 * This wrapper cannot synchronize the iterator(). Callers are expected 
+	 * to synchronize iterators manually.
+	 * @param queue - the queue to synchronize.
+	 * @param mutex - synchronization mutex, or NULL to use the queue.
+	 * @return A synchronization wrapper.
+	 */
+	public static <E> Queue<E> queue(Queue<E> queue, @Nullable Object mutex) {
+		return (queue instanceof SynchronizedQueue) ? 
+				queue : 
+					new SynchronizedQueue<E>(queue, mutex);
+	}
+	
+	private static class SynchronizedObject implements Serializable {
+		private static final long serialVersionUID = -4408866092364554628L;
+
+		final Object delegate;
+		final Object mutex;
+
+		SynchronizedObject(Object delegate, @Nullable Object mutex) {
+			this.delegate = Preconditions.checkNotNull(delegate);
+			this.mutex = (mutex == null) ? this : mutex;
+		}
+
+		Object delegate() {
+			return delegate;
+		}
+
+		// No equals and hashCode; see ForwardingObject for details.
+
+		@Override
+		public String toString() {
+			synchronized (mutex) {
+				return delegate.toString();
+			}
+		}
+	}
+
+	private static class SynchronizedCollection<E> extends SynchronizedObject implements Collection<E> {
+		private static final long serialVersionUID = 5440572373531285692L;
+
+		private SynchronizedCollection(Collection<E> delegate,
+				@Nullable Object mutex) {
+			super(delegate, mutex);
+		}
+
+		@SuppressWarnings("unchecked")
+		@Override
+		Collection<E> delegate() {
+			return (Collection<E>) super.delegate();
+		}
+
+		@Override
+		public boolean add(E e) {
+			synchronized (mutex) {
+				return delegate().add(e);
+			}
+		}
+
+		@Override
+		public boolean addAll(Collection<? extends E> c) {
+			synchronized (mutex) {
+				return delegate().addAll(c);
+			}
+		}
+
+		@Override
+		public void clear() {
+			synchronized (mutex) {
+				delegate().clear();
+			}
+		}
+
+		@Override
+		public boolean contains(Object o) {
+			synchronized (mutex) {
+				return delegate().contains(o);
+			}
+		}
+
+		@Override
+		public boolean containsAll(Collection<?> c) {
+			synchronized (mutex) {
+				return delegate().containsAll(c);
+			}
+		}
+
+		@Override
+		public boolean isEmpty() {
+			synchronized (mutex) {
+				return delegate().isEmpty();
+			}
+		}
+
+		@Override
+		public Iterator<E> iterator() {
+			return delegate().iterator(); // manually synchronized
+		}
+
+		@Override
+		public boolean remove(Object o) {
+			synchronized (mutex) {
+				return delegate().remove(o);
+			}
+		}
+
+		@Override
+		public boolean removeAll(Collection<?> c) {
+			synchronized (mutex) {
+				return delegate().removeAll(c);
+			}
+		}
+
+		@Override
+		public boolean retainAll(Collection<?> c) {
+			synchronized (mutex) {
+				return delegate().retainAll(c);
+			}
+		}
+
+		@Override
+		public int size() {
+			synchronized (mutex) {
+				return delegate().size();
+			}
+		}
+
+		@Override
+		public Object[] toArray() {
+			synchronized (mutex) {
+				return delegate().toArray();
+			}
+		}
+
+		@Override
+		public <T> T[] toArray(T[] a) {
+			synchronized (mutex) {
+				return delegate().toArray(a);
+			}
+		}
+
+	}
+
+	private static class SynchronizedQueue<E> extends SynchronizedCollection<E> implements Queue<E> {
+		private static final long serialVersionUID = 1961791630386791902L;
+
+		SynchronizedQueue(Queue<E> delegate, @Nullable Object mutex) {
+			super(delegate, mutex);
+		}
+
+		@Override
+		Queue<E> delegate() {
+			return (Queue<E>) super.delegate();
+		}
+
+		@Override
+		public E element() {
+			synchronized (mutex) {
+				return delegate().element();
+			}
+		}
+
+		@Override
+		public boolean offer(E e) {
+			synchronized (mutex) {
+				return delegate().offer(e);
+			}
+		}
+
+		@Override
+		public E peek() {
+			synchronized (mutex) {
+				return delegate().peek();
+			}
+		}
+
+		@Override
+		public E poll() {
+			synchronized (mutex) {
+				return delegate().poll();
+			}
+		}
+
+		@Override
+		public E remove() {
+			synchronized (mutex) {
+				return delegate().remove();
+			}
+		}
+	}
+}

src/main/java/com/comphenix/protocol/collections/ExpireHashMap.java

@@ -0,0 +1,246 @@
+package com.comphenix.protocol.collections;
+
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.PriorityQueue;
+import java.util.Set;
+import java.util.concurrent.TimeUnit;
+
+import com.google.common.base.Function;
+import com.google.common.base.Objects;
+import com.google.common.base.Preconditions;
+import com.google.common.base.Ticker;
+import com.google.common.collect.Maps;
+import com.google.common.primitives.Longs;
+
+/**
+ * Represents a hash map where each association may expire after a given time has elapsed.
+ * <p>
+ * Note that replaced key-value associations are only collected once the original expiration time has elapsed. 
+ * 
+ * @author Kristian Stangeland
+ *
+ * @param <K> - type of the keys.
+ * @param <V> - type of the values.
+ */
+public class ExpireHashMap<K, V> {
+	private class ExpireEntry implements Comparable<ExpireEntry> {
+		public final long expireTime;
+		public final K expireKey;
+		public final V expireValue;
+		
+		public ExpireEntry(long expireTime, K expireKey, V expireValue) {
+			this.expireTime = expireTime;
+			this.expireKey = expireKey;
+			this.expireValue = expireValue;
+		}
+
+		@Override
+		public int compareTo(ExpireEntry o) {
+			return Longs.compare(expireTime, o.expireTime);
+		}
+
+		@Override
+		public String toString() {
+			return "ExpireEntry [expireTime=" + expireTime + ", expireKey=" + expireKey
+					+ ", expireValue=" + expireValue + "]";
+		}
+	}
+	
+	private Map<K, ExpireEntry> keyLookup = new HashMap<K, ExpireEntry>();
+	private PriorityQueue<ExpireEntry> expireQueue =  new PriorityQueue<ExpireEntry>();
+	
+	// View of keyLookup with direct values
+	private Map<K, V> valueView = Maps.transformValues(keyLookup, new Function<ExpireEntry, V>() {
+		@Override
+		public V apply(ExpireEntry entry) {
+			return entry.expireValue;
+		}
+	});
+	
+	// Supplied by the constructor
+	private Ticker ticker;
+	
+	/**
+	 * Construct a new hash map where each entry may expire at a given time.
+	 */
+	public ExpireHashMap() {
+		this(Ticker.systemTicker());
+	}
+	
+	/**
+	 * Construct a new hash map where each entry may expire at a given time.
+	 * @param ticker - supplier of the current time.
+	 */
+	public ExpireHashMap(Ticker ticker) {
+		this.ticker = ticker;
+	}
+	
+	/**
+	 * Retrieve the value associated with the given key, if it has not expired.
+	 * @param key - the key.
+	 * @return The value, or NULL if not found or it has expired.
+	 */
+	public V get(K key) {
+		evictExpired();
+		
+		ExpireEntry entry = keyLookup.get(key);
+		return entry != null ? entry.expireValue : null;
+	}
+	
+	/**
+	 * Associate the given key with the given value, until the expire delay have elapsed.
+	 * @param key - the key.
+	 * @param value - the value.
+	 * @param expireDelay - the amount of time until this association expires. Must be greater than zero.
+	 * @param expireUnit - the unit of the expiration.
+	 * @return Any previously unexpired association with this key, or NULL.
+	 */
+	public V put(K key, V value, long expireDelay, TimeUnit expireUnit) {
+		Preconditions.checkNotNull(expireUnit, "expireUnit cannot be NULL");
+		Preconditions.checkState(expireDelay > 0, "expireDelay cannot be equal or less than zero.");
+		evictExpired();
+		
+		ExpireEntry entry = new ExpireEntry(
+			ticker.read() + TimeUnit.NANOSECONDS.convert(expireDelay, expireUnit), 
+			key, value
+		); 
+		ExpireEntry previous = keyLookup.put(key, entry);
+		
+		// We enqueue its removal
+		expireQueue.add(entry);
+		return previous != null ? previous.expireValue : null;
+	}
+	
+	/**
+	 * Determine if the given key is referring to an unexpired association in the map.
+ 	 * @param key - the key.
+	 * @return TRUE if it is, FALSE otherwise.
+	 */
+	public boolean containsKey(K key) {
+		evictExpired();
+		return keyLookup.containsKey(key);
+	}
+	
+	/**
+	 * Determine if the given value is referring to an unexpired association in the map.
+ 	 * @param value - the value.
+	 * @return TRUE if it is, FALSE otherwise.
+	 */
+	public boolean containsValue(V value) {
+		evictExpired();
+		
+		// Linear scan is the best we've got
+		for (ExpireEntry entry : keyLookup.values()) {
+			if (Objects.equal(value, entry.expireValue)) {
+				return true;
+			}
+		}
+		return false;
+	}
+	
+	/**
+	 * Remove a key and its associated value from the map.
+	 * @param key - the key to remove.
+	 * @return Value of the removed association, NULL otherwise.
+	 */
+	public V removeKey(K key) {
+		evictExpired();
+		
+		ExpireEntry entry = keyLookup.remove(key);
+		return entry != null ? entry.expireValue : null;
+	}
+	
+	/**
+	 * Retrieve the number of entries in the map.
+	 * @return The number of entries.
+	 */
+	public int size() {
+		evictExpired();
+		return keyLookup.size();
+	}
+	
+	/**
+	 * Retrieve a view of the keys in the current map.
+	 * @return View of the keys.
+	 */
+	public Set<K> keySet() {
+		evictExpired();
+		return keyLookup.keySet();
+	}
+	
+	/**
+	 * Retrieve a view of all the values in the current map.
+	 * @return All the values.
+	 */
+	public Collection<V> values() {
+		evictExpired();
+		return valueView.values();
+	}
+	
+	/**
+	 * Retrieve a view of all the entries in the set.
+	 * @return All the entries.
+	 */
+	public Set<Entry<K, V>> entrySet() {
+		evictExpired();
+		return valueView.entrySet();
+	}
+	
+	/**
+	 * Retrieve a view of this expire map as an ordinary map that does not support insertion.
+	 * @return The map.
+	 */
+	public Map<K, V> asMap() {
+		evictExpired();
+		return valueView;
+	}
+	
+	/**
+	 * Clear all references to key-value pairs that have been removed or replaced before they were naturally evicted.
+	 * <p>
+	 * This operation requires a linear scan of the current entries in the map.
+	 */
+	public void collect() {
+		// First evict what we can
+		evictExpired();
+		
+		// Recreate the eviction queue - this is faster than removing entries in the old queue
+		expireQueue.clear();
+		expireQueue.addAll(keyLookup.values());
+	}
+	
+	/**
+	 * Clear all the entries in the current map.
+	 */
+	public void clear() {
+		keyLookup.clear();
+		expireQueue.clear();
+	}
+	
+	/**
+	 * Evict any expired entries in the map.
+	 * <p>
+	 * This is called automatically by any of the read or write operations.
+	 */
+	protected void evictExpired() {
+		long currentTime = ticker.read();
+		
+		// Remove expired entries
+		while (expireQueue.size() > 0 && expireQueue.peek().expireTime <= currentTime) {
+			ExpireEntry entry = expireQueue.poll();
+
+			if (entry == keyLookup.get(entry.expireKey)) {
+				keyLookup.remove(entry.expireKey);
+			}
+		}
+	}
+	
+	@Override
+	public String toString() {
+		return valueView.toString();
+	}
+}
+ 

src/main/java/com/comphenix/protocol/collections/IntegerMap.java

@@ -0,0 +1,140 @@
+package com.comphenix.protocol.collections;
+
+import java.util.Arrays;
+import java.util.Map;
+
+import com.google.common.base.Preconditions;
+import com.google.common.collect.Maps;
+
+/**
+ * Represents a very quick integer-based lookup map, with a fixed key space size.
+ * <p>
+ * Integers must be non-negative.
+ * @author Kristian
+ */
+public class IntegerMap<T> {
+	private T[] array;
+	private int size;
+	
+	/**
+	 * Construct a new integer map.
+	 * @param <T> Parameter type
+	 * @return A new integer map.
+	 */
+	public static <T> IntegerMap<T> newMap() {
+		return new IntegerMap<T>();
+	}
+	
+	/**
+	 * Construct a new integer map with a default capacity.
+	 */
+	public IntegerMap() {
+		this(8);
+	}
+	
+	/**
+	 * Construct a new integer map with a given capacity.
+	 * @param initialCapacity - the capacity.
+	 */
+	public IntegerMap(int initialCapacity) {
+		@SuppressWarnings("unchecked")
+		T[] backingArray = (T[]) new Object[initialCapacity];
+		this.array = backingArray;
+		this.size = 0;
+	}
+
+	/**
+	 * Associate an integer key with the given value.
+	 * @param key - the integer key. Cannot be negative.
+	 * @param value - the value. Cannot be NULL.
+	 * @return The previous association, or NULL if not found.
+	 */
+	public T put(int key, T value) {
+		ensureCapacity(key);
+		
+		T old = array[key];
+		array[key] = Preconditions.checkNotNull(value, "value cannot be NULL");
+		
+		if (old == null)
+			size++;
+		return old;
+	}
+	
+	/**
+	 * Remove an association from the map.
+	 * @param key - the key of the association to remove.
+	 * @return The old associated value, or NULL.
+	 */
+	public T remove(int key) {
+		T old = array[key];
+		array[key] = null;
+		
+		if (old != null)
+			size--;
+		return old;
+	}
+	
+	/**
+	 * Resize the backing array to fit the given key.
+	 * @param key - the key.
+	 */
+	protected void ensureCapacity(int key) {
+		int newLength = array.length;
+
+		// Don't resize if the key fits
+		if (key < 0)
+			throw new IllegalArgumentException("Negative key values are not permitted.");
+		if (key < newLength)
+			return;
+		
+		while (newLength <= key) {
+			int next = newLength * 2;
+			// Handle overflow
+			newLength = next > newLength ? next : Integer.MAX_VALUE;
+		}
+		this.array = Arrays.copyOf(array, newLength);
+	}
+	
+	/**
+	 * Retrieve the number of mappings in this map.
+	 * @return The number of mapping.
+	 */
+	public int size() {
+		return size;
+	}
+
+	/**
+	 * Retrieve the value associated with a given key.
+	 * @param key - the key.
+	 * @return The value, or NULL if not found.
+	 */
+	public T get(int key) {
+		if (key >= 0 && key < array.length)
+			return array[key];
+		return null;
+	}
+	
+	/**
+	 * Determine if the given key exists in the map.
+	 * @param key - the key to check.
+	 * @return TRUE if it does, FALSE otherwise.
+	 */
+	public boolean containsKey(int key) {
+		return get(key) != null;
+	}
+	
+	/**
+	 * Convert the current map to an Integer map.
+	 * @return The Integer map.
+	 */
+	public Map<Integer, Object> toMap() {
+		Map<Integer, Object> map = Maps.newHashMap();
+		
+		for (int i = 0; i < array.length; i++) {
+			if (array[i] != null) {
+				map.put(i, array[i]);
+			}
+		}
+		return map;
+	}
+}

src/main/java/com/comphenix/protocol/concurrency/AbstractConcurrentListenerMultimap.java

@@ -1,131 +1,144 @@
-package com.comphenix.protocol.concurrency;
-
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.List;
-import java.util.Set;
-import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
-
-import com.comphenix.protocol.events.ListeningWhitelist;
-import com.comphenix.protocol.injector.PrioritizedListener;
-import com.google.common.collect.Iterables;
-
-/**
- * A thread-safe implementation of a listener multimap.
- * 
- * @author Kristian
- */
-public abstract class AbstractConcurrentListenerMultimap<TListener> {
-
-	// The core of our map
-	private ConcurrentMap<Integer, SortedCopyOnWriteArray<PrioritizedListener<TListener>>> listeners = 
-		new ConcurrentHashMap<Integer, SortedCopyOnWriteArray<PrioritizedListener<TListener>>>();
-	
-	/**
-	 * Adds a listener to its requested list of packet recievers.
-	 * @param listener - listener with a list of packets to recieve notifcations for.
-	 * @param whitelist - the packet whitelist to use.
-	 */
-	public void addListener(TListener listener, ListeningWhitelist whitelist) {
-		
-		PrioritizedListener<TListener> prioritized = new PrioritizedListener<TListener>(listener, whitelist.getPriority());
-		
-		for (Integer packetID : whitelist.getWhitelist()) {
-			addListener(packetID, prioritized);
-		}
-	}
-	
-	// Add the listener to a specific packet notifcation list
-	private void addListener(Integer packetID, PrioritizedListener<TListener> listener) {
-		
-		SortedCopyOnWriteArray<PrioritizedListener<TListener>> list = listeners.get(packetID);
-		
-		// We don't want to create this for every lookup
-		if (list == null) {
-			// It would be nice if we could use a PriorityBlockingQueue, but it doesn't preseve iterator order,
-			// which is a essential feature for our purposes.
-			final SortedCopyOnWriteArray<PrioritizedListener<TListener>> value = new SortedCopyOnWriteArray<PrioritizedListener<TListener>>();
-			
-			list = listeners.putIfAbsent(packetID, value);
-			
-			// We may end up creating multiple multisets, but we'll agree 
-			// on the one to use.
-			if (list == null) {
-				list = value;
-			}
-		}
-		
-		// Thread safe
-		list.add(listener);
-	}
-	
-	/**
-	 * Removes the given listener from the packet event list.
-	 * @param listener - listener to remove.
-	 * @param whitelist - the packet whitelist that was used.
-	 * @return Every packet ID that was removed due to no listeners.
-	 */
-	public List<Integer> removeListener(TListener listener, ListeningWhitelist whitelist) {
-	
-		List<Integer> removedPackets = new ArrayList<Integer>();
-		
-		// Again, not terribly efficient. But adding or removing listeners should be a rare event.
-		for (Integer packetID : whitelist.getWhitelist()) {
-			
-			SortedCopyOnWriteArray<PrioritizedListener<TListener>> list = listeners.get(packetID);
-			
-			// Remove any listeners
-			if (list != null) {
-				// Don't remove from newly created lists
-				if (list.size() > 0) {
-					// Remove this listener. Note that priority is generally ignored.
-					list.remove(new PrioritizedListener<TListener>(listener, whitelist.getPriority()));
-					
-					if (list.size() == 0) {
-						listeners.remove(packetID);
-						removedPackets.add(packetID);
-					}
-				}
-			}
-			
-			// Move on to the next
-		}
-		
-		return removedPackets;
-	}
-	
-	/**
-	 * Retrieve the registered listeners, in order from the lowest to the highest priority.
-	 * <p>
-	 * The returned list is thread-safe and doesn't require synchronization.
-	 * @param packetID - packet ID.
-	 * @return Registered listeners.
-	 */
-	public Collection<PrioritizedListener<TListener>> getListener(int packetID) {
-		return listeners.get(packetID);
-	}
-	
-	/**
-	 * Retrieve every listener.
-	 * @return Every listener.
-	 */
-	public Iterable<PrioritizedListener<TListener>> values() {
-		return Iterables.concat(listeners.values());
-	}
-	
-	/**
-	 * Retrieve every registered packet ID:
-	 * @return Registered packet ID.
-	 */
-	public Set<Integer> keySet() {
-		return listeners.keySet();
-	}
-	
-	/**
-	 * Remove all packet listeners.
-	 */
-	protected void clearListeners() {
-		listeners.clear();
-	}
-}
+/*
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2012 Kristian S. Stangeland
+ *
+ *  This program is free software; you can redistribute it and/or modify it under the terms of the 
+ *  GNU General Public License as published by the Free Software Foundation; either version 2 of 
+ *  the License, or (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+ *  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+ *  See the GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along with this program; 
+ *  if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 
+ *  02111-1307 USA
+ */
+
+package com.comphenix.protocol.concurrency;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.concurrent.ConcurrentMap;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.injector.PrioritizedListener;
+import com.google.common.collect.Iterables;
+
+/**
+ * A thread-safe implementation of a listener multimap.
+ * 
+ * @author Kristian
+ */
+public abstract class AbstractConcurrentListenerMultimap<TListener> {
+	// The core of our map
+	private ConcurrentMap<PacketType, SortedCopyOnWriteArray<PrioritizedListener<TListener>>> mapListeners;
+	
+	public AbstractConcurrentListenerMultimap() {
+		mapListeners =   new ConcurrentHashMap<PacketType, SortedCopyOnWriteArray<PrioritizedListener<TListener>>>();
+	}
+	
+	/**
+	 * Adds a listener to its requested list of packet receivers.
+	 * @param listener - listener with a list of packets to receive notifications for.
+	 * @param whitelist - the packet whitelist to use.
+	 */
+	public void addListener(TListener listener, ListeningWhitelist whitelist) {
+		PrioritizedListener<TListener> prioritized = new PrioritizedListener<TListener>(listener, whitelist.getPriority());
+		
+		for (PacketType type : whitelist.getTypes()) {
+			addListener(type, prioritized);
+		}
+	}
+	
+	// Add the listener to a specific packet notifcation list
+	private void addListener(PacketType type, PrioritizedListener<TListener> listener) {
+		SortedCopyOnWriteArray<PrioritizedListener<TListener>> list = mapListeners.get(type);
+		
+		// We don't want to create this for every lookup
+		if (list == null) {
+			// It would be nice if we could use a PriorityBlockingQueue, but it doesn't preseve iterator order,
+			// which is a essential feature for our purposes.
+			final SortedCopyOnWriteArray<PrioritizedListener<TListener>> value = new SortedCopyOnWriteArray<PrioritizedListener<TListener>>();
+
+			// We may end up creating multiple multisets, but we'll agree on which to use
+			list = mapListeners.putIfAbsent(type, value);
+		
+			if (list == null) {
+				list = value;
+			}
+		}
+		
+		// Thread safe
+		list.add(listener);
+	}
+	
+	/**
+	 * Removes the given listener from the packet event list.
+	 * @param listener - listener to remove.
+	 * @param whitelist - the packet whitelist that was used.
+	 * @return Every packet ID that was removed due to no listeners.
+	 */
+	public List<PacketType> removeListener(TListener listener, ListeningWhitelist whitelist) {
+		List<PacketType> removedPackets = new ArrayList<PacketType>();
+		
+		// Again, not terribly efficient. But adding or removing listeners should be a rare event.
+		for (PacketType type : whitelist.getTypes()) {
+			SortedCopyOnWriteArray<PrioritizedListener<TListener>> list = mapListeners.get(type);
+			
+			// Remove any listeners
+			if (list != null) {
+				// Don't remove from newly created lists
+				if (list.size() > 0) {
+					// Remove this listener. Note that priority is generally ignored.
+					list.remove(new PrioritizedListener<TListener>(listener, whitelist.getPriority()));
+					
+					if (list.size() == 0) {
+						mapListeners.remove(type);
+						removedPackets.add(type);
+					}
+				}
+			}
+			// Move on to the next
+		}
+		return removedPackets;
+	}
+	
+	/**
+	 * Retrieve the registered listeners, in order from the lowest to the highest priority.
+	 * <p>
+	 * The returned list is thread-safe and doesn't require synchronization.
+	 * @param type - packet type.
+	 * @return Registered listeners.
+	 */
+	public Collection<PrioritizedListener<TListener>> getListener(PacketType type) {
+		return mapListeners.get(type);
+	}
+	
+	/**
+	 * Retrieve every listener.
+	 * @return Every listener.
+	 */
+	public Iterable<PrioritizedListener<TListener>> values() {
+		return Iterables.concat(mapListeners.values());
+	}
+	
+	/**
+	 * Retrieve every registered packet type:
+	 * @return Registered packet type.
+	 */
+	public Set<PacketType> keySet() {
+		return mapListeners.keySet();
+	}
+	
+	/**
+	 * Remove all packet listeners.
+	 */
+	protected void clearListeners() {
+		mapListeners.clear();
+	}
+}