Exclude CODEOWNERS from language statistics

* Improved Wrapping of PlayerInfoData and support chat session data
* added constructor for unambiguous creation of playerinfodata without signature

.gitattributes

@@ -0,0 +1,2 @@
+* text=auto eol=lf
+.gitea/CODEOWNERS linguist-detectable=false

.gitea/CODEOWNERS

@@ -0,0 +1,3 @@
+# Pull requests request review from the eligible staff team(s).
+# One approval from either an Admin or Developer satisfies branch protection.
+*   @trueog/Admins @trueog/Developers

.github/ISSUE_TEMPLATE.md

@@ -2,6 +2,7 @@ _Follow this template except for feature requests. Use pastebin when providing /
 
 Make sure you've done the following:
 - [ ] You're using the latest build for your server version
+- [ ] This isn't fixed in a recent development build
 - [ ] This isn't an issue caused by another plugin
 - [ ] You've checked for duplicate issues
 - [ ] You didn't use `/reload`

.github/ISSUE_TEMPLATE/bug_report.md

@@ -7,6 +7,8 @@ assignees: ''
 
 ---
 
+- [ ] This issue is not solved in a development build
+
 **Describe the bug**
 A clear and concise description of what the bug is.
 

.github/ISSUE_TEMPLATE/feature_request.md

@@ -7,6 +7,8 @@ assignees: ''
 
 ---
 
+- [ ] This feature is not currently present in a development build
+
 **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 [...]
 

.github/workflows/build.yml

@@ -0,0 +1,28 @@
+name: ProtocolLib full build lifecycle
+
+on:
+  - push
+  - pull_request
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Setup java
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '19'
+          cache: 'gradle'
+
+      - name: Run gradle build lifecycle
+        run: ./gradlew build shadowJar --no-daemon
+
+      - name: Upload plugin file
+        uses: actions/upload-artifact@v2
+        with:
+          name: ProtocolLib
+          path: build/libs/ProtocolLib.jar

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,41 @@
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ "master" ]
+  schedule:
+    - cron: '28 9 * * 1'
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Setup java
+        uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: '19'
+          cache: 'gradle'
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v2
+        with:
+          languages: 'java'
+
+      - name: Run gradle build lifecycle
+        run: ./gradlew build -x test --no-daemon
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v2

.gitignore

@@ -179,4 +179,5 @@ logs/
 
 .gradle/
 build/
-logs/
+logs/
+.java-version

.travis.yml

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

Readme.md

@@ -1,169 +1,167 @@
-# 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](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
-lead to more subtle bugs.
-
-Currently maintained by dmulloy2 on behalf of [Spigot](https://www.spigotmc.org/).
-
-### Resources
-
-* [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
-
-ProtocolLib is built with Maven and requires Spigot and SpigotAPI, which can be found [here](https://www.spigotmc.org/wiki/buildtools/).
-
-### 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 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:
-
-````yml
-depend: [ProtocolLib]
-````
-
-You can also add ProtocolLib as a Maven dependency:
-
-````xml
-<repositories>
-  <repository>
-    <id>dmulloy2-repo</id>
-    <url>https://repo.dmulloy2.net/repository/public/</url>
-  </repository>
-  ...
-</repositories>
-
-<dependencies>
-  <dependency>
-    <groupId>com.comphenix.protocol</groupId>
-    <artifactId>ProtocolLib</artifactId>
-    <version>4.6.0</version>
-  </dependency>
-</dependencies>
-````
-
-Or use the maven dependency with gradle:
-
-```gradle
-repositories {
-    maven { url "https://repo.dmulloy2.net/repository/public/" }
-}
-
-dependencies {
-    compileOnly group: "com.comphenix.protocol", name: "ProtocolLib", version: "4.6.0";
-}
-```
-
-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:
-
-````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:
-
-````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:
-
-````java
-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>();
-
-((CraftPlayer) player).getHandle().netServerHandler.sendPacket(fakeExplosion);
-````
-
-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
-
-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.
-
-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.
+# ProtocolLib
+
+Certain tasks are impossible to perform with the standard Bukkit API, and may require
+working with and even modifying 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
+lead to more subtle bugs.
+
+### Resources
+
+* [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/index.html)
+
+### Compilation
+
+ProtocolLib is built with [Gradle](https://gradle.org/). If you have it installed, just run
+`./gradlew build` in the root project folder. Other gradle targets you may be interested in 
+include `clean`, `test`, and `shadowJar`. `shadowJar` will create a jar with all dependencies
+(ByteBuddy) included.
+
+### A new API
+
+__ProtocolLib__ attempts to solve this problem by providing an 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 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:
+
+````yml
+depend: [ ProtocolLib ]
+````
+
+You can also add ProtocolLib as a Maven dependency:
+
+````xml
+<repositories>
+  <repository>
+    <id>dmulloy2-repo</id>
+    <url>https://repo.dmulloy2.net/repository/public/</url>
+  </repository>
+</repositories>
+
+<dependencies>
+  <dependency>
+    <groupId>com.comphenix.protocol</groupId>
+    <artifactId>ProtocolLib</artifactId>
+    <version>5.0.0</version>
+    <scope>provided</scope>
+  </dependency>
+</dependencies>
+````
+
+Or use the maven dependency with gradle:
+
+```gradle
+repositories {
+    maven { url "https://repo.dmulloy2.net/repository/public/" }
+}
+
+dependencies {
+    compileOnly 'com.comphenix.protocol:ProtocolLib:5.0.0'
+}
+```
+
+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:
+
+````java
+// Disable all sound effects
+protocolManager.addPacketListener(new PacketAdapter(
+    this,
+    ListenerPriority.NORMAL,
+    PacketType.Play.Server.NAMED_SOUND_EFFECT
+) {
+    @Override
+    public void onPacketSending(PacketEvent event) {
+        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:
+
+````java
+// Censor
+protocolManager.addPacketListener(new PacketAdapter(
+    this,
+    ListenerPriority.NORMAL,
+    PacketType.Play.Client.CHAT
+) {
+    @Override
+    public void onPacketReceiving(PacketEvent event) {
+        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:
+
+````java
+PacketPlayOutExplosion fakeExplosion = new PacketPlayOutExplosion(
+    player.getLocation().getX(),
+    player.getLocation().getY(),
+    player.getLocation().getZ(),
+    3.0F,
+    new ArrayList<>(),
+    new Vec3D(
+        player.getVelocity().getX() + 1,
+        player.getVelocity().getY() + 1,
+        player.getVelocity().getZ() + 1
+    )
+);
+
+((CraftPlayer) player).getHandle().b.a(fakeExplosion);
+````
+
+But with ProtocolLib, you can turn that into something more manageable:
+
+````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);
+fakeExplosion.getBlockPositionCollectionModifier().write(0, new ArrayList<>());
+fakeExplosion.getVectors().write(0, player.getVelocity().add(new Vector(1, 1, 1)));
+
+protocolManager.sendServerPacket(player, fakeExplosion);
+````
+
+### Compatibility
+
+One of the main goals of this project was to achieve maximum compatibility with CraftBukkit. And the end
+result is quite flexible. It's likely that I won't have to update ProtocolLib for anything but bug fixes
+and new features.
+
+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.

TinyProtocol/pom.xml

@@ -1,137 +0,0 @@
-<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

@@ -1,117 +0,0 @@
-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

@@ -1,403 +0,0 @@
-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

@@ -1,522 +0,0 @@
-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

@@ -1,14 +0,0 @@
-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>

build.gradle.kts

@@ -0,0 +1,185 @@
+import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+import org.gradle.api.tasks.compile.JavaCompile
+import org.gradle.api.tasks.javadoc.Javadoc
+import org.gradle.api.tasks.testing.Test
+import org.gradle.jvm.tasks.Jar
+import org.gradle.language.jvm.tasks.ProcessResources
+
+plugins {
+    id("java-library")
+    id("eclipse")
+    id("com.gradleup.shadow") version "8.3.9"
+}
+
+group = "com.comphenix.protocol"
+version = "5.0.0-dev"
+description = "Provides access to the Minecraft protocol"
+
+val isSnapshot = version.toString().endsWith("-SNAPSHOT")
+
+repositories {
+    val bootstrapRepo = System.getProperty("SELF_MAVEN_LOCAL_REPO")?.let { // TrueOG Bootstrap mavenLocal().
+        val dir = file(it)
+        if (dir.isDirectory) {
+            println("Using SELF_MAVEN_LOCAL_REPO at: $it")
+            dir
+        } else {
+            logger.error("TrueOG Bootstrap not found, defaulting to ~/.m2 for mavenLocal()")
+            null
+        }
+    } ?: run {
+        logger.error("TrueOG Bootstrap not found, defaulting to ~/.m2 for mavenLocal()")
+        null
+    }
+
+    // Prefer the bootstrap-local Spigot artifacts when present. If ~/.m2 contains
+    // partial module metadata, resolving there first can block Gradle from falling
+    // through to the bootstrap repo for the actual jar.
+    maven {
+        url = uri("file://${(bootstrapRepo ?: file("${System.getProperty("user.home")}/.m2/repository")).absolutePath}")
+        content {
+            includeGroup("org.spigotmc")
+        }
+    }
+
+    if (bootstrapRepo != null) {
+        maven {
+            url = uri("file://${System.getProperty("user.home")}/.m2/repository")
+            content {
+                includeGroup("org.spigotmc")
+            }
+        }
+    }
+    mavenCentral()
+    maven {
+        name = "Rosewood Public"
+        url = uri("https://repo.rosewooddev.io/repository/public/")
+        content {
+            includeGroup("org.spigotmc")
+        }
+    }
+    maven {
+        name = "ElMakers Mirror"
+        url = uri("https://maven.elmakers.com/repository/")
+        content {
+            includeGroup("org.spigotmc")
+        }
+    }
+    maven {
+        name = "dmulloy2"
+        url = uri("https://repo.dmulloy2.net/repository/public/")
+        content {
+            excludeGroup("org.spigotmc")
+        }
+    }
+    maven {
+        name = "Spigot Snapshots"
+        url = uri("https://hub.spigotmc.org/nexus/content/groups/public/")
+        content {
+            includeGroup("org.spigotmc")
+        }
+    }
+    maven {
+        url = uri("https://libraries.minecraft.net/")
+        metadataSources {
+            mavenPom()
+            artifact()
+            ignoreGradleMetadataRedirection()
+        }
+    }
+}
+
+dependencies {
+    implementation("net.bytebuddy:byte-buddy:1.14.3")
+    compileOnly("org.spigotmc:spigot-api:1.19.4-R0.1-SNAPSHOT") {
+        isTransitive = false
+    }
+    compileOnly("com.google.guava:guava:31.1-jre")
+    compileOnly("org.apache.commons:commons-lang3:3.17.0")
+    compileOnly("commons-lang:commons-lang:2.6")
+    compileOnly("com.google.code.findbugs:jsr305:3.0.2")
+    compileOnly("com.mojang:datafixerupper:6.0.6")
+    compileOnly("net.md-5:bungeecord-chat:1.16-R0.4")
+    compileOnly("org.yaml:snakeyaml:1.33")
+    compileOnly("org.joml:joml:1.10.5")
+    compileOnly("io.netty:netty-all:4.0.23.Final")
+    compileOnly("net.kyori:adventure-text-serializer-gson:4.13.0")
+    compileOnly("com.googlecode.json-simple:json-simple:1.1.1") {
+        isTransitive = false
+    }
+    testImplementation("org.junit.jupiter:junit-jupiter:5.9.2")
+    testRuntimeOnly("org.junit.jupiter:junit-jupiter-engine:5.9.2")
+    testImplementation("org.mockito:mockito-core:4.11.0")
+    testImplementation("org.mockito:mockito-inline:4.11.0")
+    testImplementation("io.netty:netty-common:4.1.77.Final")
+    testImplementation("io.netty:netty-transport:4.1.77.Final")
+    testImplementation("org.spigotmc:spigot-api:1.19.4-R0.1-SNAPSHOT")
+    testImplementation("org.spigotmc:spigot:1.19.4-R0.1-SNAPSHOT")
+    testImplementation("com.google.guava:guava:31.1-jre")
+    testImplementation("org.apache.commons:commons-lang3:3.17.0")
+    testImplementation("commons-lang:commons-lang:2.6")
+    testImplementation("com.google.code.findbugs:jsr305:3.0.2")
+    testImplementation("com.mojang:authlib:3.17.30")
+    testImplementation("com.mojang:brigadier:1.0.18")
+    testImplementation("com.mojang:datafixerupper:6.0.6")
+    testImplementation("com.mojang:logging:1.1.1")
+    testImplementation("net.md-5:bungeecord-chat:1.16-R0.4")
+    testImplementation("org.apache.logging.log4j:log4j-api:2.17.1")
+    testRuntimeOnly("org.slf4j:slf4j-api:2.0.0")
+    testImplementation("org.yaml:snakeyaml:1.33")
+    testImplementation("org.joml:joml:1.10.5")
+    testImplementation("net.kyori:adventure-text-serializer-gson:4.13.0")
+    testImplementation("net.kyori:adventure-text-serializer-plain:4.13.1")
+}
+
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(17)
+    }
+    sourceCompatibility = JavaVersion.VERSION_1_8
+    targetCompatibility = JavaVersion.VERSION_1_8
+}
+
+tasks.named<ShadowJar>("shadowJar") {
+    dependencies {
+        include(dependency("net.bytebuddy:byte-buddy:.*"))
+    }
+    relocate("net.bytebuddy", "com.comphenix.net.bytebuddy")
+    archiveFileName.set("ProtocolLib-${project.version}.jar")
+}
+
+tasks.named<Jar>("jar") {
+    enabled = false
+}
+
+tasks.named<Test>("test") {
+    useJUnitPlatform()
+}
+
+tasks.named<ProcessResources>("processResources") {
+    val includeBuild = isSnapshot && System.getenv("BUILD_NUMBER") != null
+    val fullVersion = if (includeBuild) "$version-${System.getenv("BUILD_NUMBER")}" else version
+    filesMatching("**/*") {
+        expand("version" to fullVersion)
+    }
+}
+
+tasks.named("build") {
+    dependsOn("shadowJar")
+}
+
+tasks.withType<JavaCompile> {
+    options.encoding = "UTF-8"
+}
+
+tasks.withType<Javadoc> {
+    options.encoding = "UTF-8"
+}
+
+testing {
+    suites {
+        val test by getting(JvmTestSuite::class) {
+            useJUnitJupiter()
+        }
+    }
+}

gradle.properties

@@ -0,0 +1,2 @@
+nexusUsername=""
+nexusPassword=""

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,7 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14.3-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,251 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# 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
+#
+#      https://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.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s\n' "$PWD" ) || exit
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH="\\\"\\\""
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    if ! command -v java >/dev/null 2>&1
+    then
+        die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        -jar "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,94 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" -jar "%APP_HOME%\gradle\wrapper\gradle-wrapper.jar" %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

pom.xml

@@ -1,338 +0,0 @@
-<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>4.6.1-SNAPSHOT</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>2.0.9</powermock.version>
-		<spigot.version>1.16.5-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>3.2.4</version>
-				<executions>
-					<execution>
-						<phase>package</phase>
-						<goals>
-							<goal>shade</goal>
-						</goals>
-						<configuration>
-							<shadedArtifactAttached>false</shadedArtifactAttached>
-							<createDependencyReducedPom>false</createDependencyReducedPom>
-
-							<relocations>
-								<relocation>
-									<pattern>net.bytebuddy</pattern>
-									<shadedPattern>com.comphenix.net.bytebuddy</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>${project.name}</finalName>
-				</configuration>
-			</plugin>
-
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-surefire-plugin</artifactId>
-				<version>3.0.0-M5</version>
-				<configuration>
-					<trimStackTrace>false</trimStackTrace>
-					<useFile>false</useFile>
-					<systemProperties>
-						<property>
-							<name>projectVersion</name>
-							<value>${project.version}</value>
-						</property>
-					</systemProperties>
-				</configuration>
-			</plugin>
-
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-javadoc-plugin</artifactId>
-				<version>3.2.0</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>
-					<source>8</source>
-					<doclint>none</doclint>
-					<quiet>true</quiet>
-				</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>3.2.0</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/repository/releases/</url>
-		</repository>
-		<snapshotRepository>
-			<id>dmulloy2-snapshots</id>
-			<url>https://repo.dmulloy2.net/repository/snapshots/</url>
-		</snapshotRepository>
-	</distributionManagement>
-
-	<repositories>
-		<repository>
-			<id>dmulloy2-repo</id>
-			<url>https://repo.dmulloy2.net/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>${spigot.version}</version>
-			<scope>provided</scope>
-		</dependency>
-		<dependency>
-			<groupId>net.kyori</groupId>
-			<artifactId>adventure-text-serializer-gson</artifactId>
-			<version>4.5.1</version>
-			<scope>provided</scope>
-		</dependency>
-		<!-- https://mvnrepository.com/artifact/net.bytebuddy/byte-buddy -->
-		<dependency>
-			<groupId>net.bytebuddy</groupId>
-			<artifactId>byte-buddy</artifactId>
-			<version>1.11.0</version>
-		</dependency>
-
-		<!-- Testing dependencies -->
-		<dependency>
-			<groupId>junit</groupId>
-			<artifactId>junit</artifactId>
-			<version>4.13.2</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.mockito</groupId>
-			<artifactId>mockito-core</artifactId>
-			<version>3.10.0</version>
-			<scope>test</scope>
-		</dependency>
-		<dependency>
-			<groupId>org.powermock</groupId>
-			<artifactId>powermock-module-junit4</artifactId>
-			<version>${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>

settings.gradle.kts

@@ -0,0 +1,5 @@
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "0.8.0"
+}
+
+rootProject.name = "ProtocolLib"

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

@@ -41,9 +41,9 @@ abstract class CommandBase implements CommandExecutor {
 	
 	public static final String PERMISSION_ADMIN = "protocol.admin";
 	
-	private String permission;
-	private String name;
-	private int minimumArgumentCount;
+	private final String permission;
+	private final String name;
+	private final int minimumArgumentCount;
 	
 	protected ErrorReporter reporter;
 	
@@ -97,18 +97,23 @@ abstract class CommandBase implements CommandExecutor {
 		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;
+			final String arg = arguments.peek().toLowerCase();
+			switch (arg) {
+				case "true":
+				case "on":
+					result = true;
+					break;
+				case "false":
+				case "off":
+					result = false;
+					break;
+				default:
+					if (arg.equalsIgnoreCase(parameterName)) result = true;
+					break;
+			}
 		}
 		
-		if (result != null)
-			arguments.poll();
+		if (result != null) arguments.poll();
 		return result;
 	}
 		
@@ -119,7 +124,7 @@ abstract class CommandBase implements CommandExecutor {
 	 * @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));
+		return new ArrayDeque<>(Arrays.asList(args).subList(start, args.length));
 	}
 	
 	/**

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

@@ -2,6 +2,7 @@ package com.comphenix.protocol;
 
 import java.util.ArrayList;
 import java.util.Deque;
+import java.util.HashSet;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Set;
@@ -26,7 +27,6 @@ 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.
@@ -79,7 +79,7 @@ public class CommandFilter extends CommandBase {
 		public Filter(String name, String predicate, Set<PacketType> packets) {
 			this.name = name;
 			this.predicate = predicate;
-			this.packets = Sets.newHashSet(packets);
+			this.packets = new HashSet<>(packets);
 		}
 		
 		/**
@@ -103,7 +103,7 @@ public class CommandFilter extends CommandBase {
 		 * @return Set of packets this filter applies to.
 		 */
 		public Set<PacketType> getRanges() {
-			return Sets.newHashSet(packets);
+			return new HashSet<>(packets);
 		}
 		
 		/**

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

@@ -22,6 +22,7 @@ import java.util.ArrayDeque;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Deque;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
@@ -34,25 +35,17 @@ import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.Plugin;
 
-import com.comphenix.protocol.utility.ByteBuddyGenerated;
 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.
@@ -121,13 +114,7 @@ class CommandPacket extends CommandBase {
 	 * @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)
-			);
-		}
+		chatter.sendMessageSilently(receiver, message);
 	}
 	
 	/**
@@ -136,13 +123,7 @@ class CommandPacket extends CommandBase {
 	 * @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)
-			);
-		}
+		chatter.broadcastMessageSilently(message, permission);
 	}
 	
 	private void printPage(CommandSender sender, int pageIndex) {
@@ -306,7 +287,7 @@ class CommandPacket extends CommandBase {
 	}
 		
 	private Set<PacketType> filterTypes(Set<PacketType> types, Sender sender) {
-		Set<PacketType> result = Sets.newHashSet();
+		final Set<PacketType> result = new HashSet<>();
 		
 		for (PacketType type : types) {
 			if (type.getSender() == sender) {
@@ -461,19 +442,21 @@ class CommandPacket extends CommandBase {
 		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.");
+	private SubCommand parseCommand(Deque<String> arguments)
+	{
+		final String text = arguments.remove().toLowerCase();
+
+		switch (text) {
+			case "add":
+				return SubCommand.ADD;
+			case "remove":
+				return SubCommand.REMOVE;
+			case "names":
+				return SubCommand.NAMES;
+			case "page":
+				return SubCommand.PAGE;
+			default:
+				throw new IllegalArgumentException(text + " is not a valid sub command. Must be add or remove.");
+		}
 	}
 }

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

@@ -218,14 +218,13 @@ class CommandProtocol extends CommandBase {
 	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 {
+		try (Closer closer = Closer.create()) {
 			Date date = new Date();
 			File file = new File(plugin.getDataFolder(), "dump-" + FILE_FORMAT.format(date) + ".txt");
 			if (file.exists()) {
@@ -233,7 +232,7 @@ class CommandProtocol extends CommandBase {
 			}
 
 			file.createNewFile();
-			
+
 			FileWriter fw = closer.register(new FileWriter(file));
 			PrintWriter pw = closer.register(new PrintWriter(fw));
 
@@ -285,8 +284,6 @@ class CommandProtocol extends CommandBase {
 		} 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/PacketLogging.java

@@ -1,268 +1,284 @@
-/**
- *  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();
-		}
-	}
+/**
+ *  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 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.comphenix.protocol.reflect.FuzzyReflection;
+import com.comphenix.protocol.reflect.accessors.Accessors;
+import com.comphenix.protocol.reflect.accessors.MethodAccessor;
+import com.comphenix.protocol.utility.MinecraftReflection;
+import org.bukkit.ChatColor;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandExecutor;
+import org.bukkit.command.CommandSender;
+import org.bukkit.plugin.Plugin;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
+import java.text.MessageFormat;
+import java.text.SimpleDateFormat;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.logging.FileHandler;
+import java.util.logging.Formatter;
+import java.util.logging.Handler;
+import java.util.logging.Level;
+import java.util.logging.LogRecord;
+import java.util.logging.Logger;
+
+/**
+ * Logs packets to a given stream
+ * @author dmulloy2
+ */
+public class PacketLogging implements CommandExecutor, PacketListener {
+	public static final String NAME = "packetlog";
+
+	private static MethodAccessor HEX_DUMP;
+
+	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()) {
+			if (HEX_DUMP == null) {
+				Class<?> hexDumpClass = MinecraftReflection.getLibraryClass("org.apache.commons.io.HexDump");
+				HEX_DUMP = Accessors.getMethodAccessor(FuzzyReflection.fromClass(hexDumpClass)
+						.getMethodByParameters("dump", byte[].class, long.class, OutputStream.class, int.class));
+			}
+
+			HEX_DUMP.invoke(null, bytes, 0, output, 0);
+			return new String(output.toByteArray(), StandardCharsets.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

@@ -17,98 +17,87 @@
 
 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;
+import org.bukkit.entity.Player;
 
 /**
  * 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.
+	 * @param packet   - packet to send.
 	 */
-	public void sendServerPacket(Player receiver, PacketContainer packet, boolean filters)
-			throws InvocationTargetException;
-	
+	void sendServerPacket(Player receiver, PacketContainer packet);
+
 	/**
 	 * 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.
+	 *
+	 * @param receiver - the reciever.
+	 * @param packet   - packet to send.
+	 * @param filters  - whether or not to invoke any packet filters below {@link ListenerPriority#MONITOR}.
 	 */
-	public void sendServerPacket(Player receiver, PacketContainer packet, NetworkMarker marker, boolean filters)
-			throws InvocationTargetException;
+	void sendServerPacket(Player receiver, PacketContainer packet, boolean filters);
+
+	/**
+	 * 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}.
+	 */
+	void sendServerPacket(Player receiver, PacketContainer packet, NetworkMarker marker, boolean filters);
 
 	/**
 	 * 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.
+	 * @param id       - packet id.
+	 * @param bytes    - packet bytes.
 	 */
-	public void sendWirePacket(Player receiver, int id, byte[] bytes) throws InvocationTargetException;
+	void sendWirePacket(Player receiver, int id, byte[] bytes);
 
 	/**
 	 * 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.
+	 * @param packet   - packet to send.
 	 */
-	public void sendWirePacket(Player receiver, WirePacket packet) throws InvocationTargetException;
+	void sendWirePacket(Player receiver, WirePacket packet);
 
 	/**
 	 * 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;
+	void receiveClientPacket(Player sender, PacketContainer packet);
 
 	/**
 	 * Simulate recieving a certain packet from a given player.
-	 * @param sender - the sender.
-	 * @param packet - the packet that was sent.
+	 *
+	 * @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;
-	
+	void receiveClientPacket(Player sender, PacketContainer packet, boolean filters);
+
 	/**
 	 * 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 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;
+	void receiveClientPacket(Player sender, PacketContainer packet, NetworkMarker marker, boolean filters);
 }

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

@@ -16,7 +16,6 @@ import com.comphenix.protocol.utility.MinecraftVersion;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.ComparisonChain;
 import com.google.common.collect.Iterables;
-import com.google.common.collect.Lists;
 
 import org.apache.commons.lang.WordUtils;
 import org.bukkit.Bukkit;
@@ -42,18 +41,19 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 	 * @author Kristian
 	 */
 	public static class Handshake {
-		private static final Protocol PROTOCOL = Protocol.HANDSHAKING;
+		static final Protocol PROTOCOL = Protocol.HANDSHAKING;
 
 		/**
 		 * Incoming packets.
 		 * @author Kristian
 		 */
 		public static class Client extends PacketTypeEnum {
-			private final static Sender SENDER = Sender.CLIENT;
+			private static final Sender SENDER = Sender.CLIENT;
 
+			@ForceAsync
 			public static final PacketType SET_PROTOCOL =                 new PacketType(PROTOCOL, SENDER, 0x00, "SetProtocol", "C00Handshake");
 
-			private final static Client INSTANCE = new Client();
+			private static final Client INSTANCE = new Client();
 
 			// Prevent accidental construction
 			private Client() { super(); }
@@ -71,8 +71,8 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		 * @author Kristian
 		 */
 		public static class Server extends PacketTypeEnum {
-			private final static Sender SENDER = Sender.CLIENT;
-			private final static Server INSTANCE = new Server();
+			private static final Sender SENDER = Sender.CLIENT;
+			private static final Server INSTANCE = new Server();
 			private Server() { super(); }
 
 			public static Server getInstance() {
@@ -93,107 +93,126 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 	 * @author Kristian
 	 */
 	public static class Play {
-		private static final Protocol PROTOCOL = Protocol.PLAY;
+		static final Protocol PROTOCOL = Protocol.PLAY;
 
 		/**
 		 * Outgoing packets.
 		 * @author Kristian
 		 */
 		public static class Server extends PacketTypeEnum {
-			private final static Sender SENDER = Sender.SERVER;
+			private static final Sender SENDER = Sender.SERVER;
 
-			public static final PacketType SPAWN_ENTITY =                 new PacketType(PROTOCOL, SENDER, 0x00, "SpawnEntity", "SPacketSpawnObject");
-			public static final PacketType SPAWN_ENTITY_EXPERIENCE_ORB =  new PacketType(PROTOCOL, SENDER, 0x01, "SpawnEntityExperienceOrb", "SPacketSpawnExperienceOrb");
-			public static final PacketType SPAWN_ENTITY_LIVING =          new PacketType(PROTOCOL, SENDER, 0x02, "SpawnEntityLiving", "SPacketSpawnMob");
-			public static final PacketType SPAWN_ENTITY_PAINTING =        new PacketType(PROTOCOL, SENDER, 0x03, "SpawnEntityPainting", "SPacketSpawnPainting");
-			public static final PacketType NAMED_ENTITY_SPAWN =           new PacketType(PROTOCOL, SENDER, 0x04, "NamedEntitySpawn", "SPacketSpawnPlayer");
-			public static final PacketType ANIMATION =                    new PacketType(PROTOCOL, SENDER, 0x05, "Animation", "SPacketAnimation");
-			public static final PacketType STATISTIC =                    new PacketType(PROTOCOL, SENDER, 0x06, "Statistic", "SPacketStatistics");
-			public static final PacketType BLOCK_BREAK =                  new PacketType(PROTOCOL, SENDER, 0x07, "BlockBreak");
-			public static final PacketType BLOCK_BREAK_ANIMATION =        new PacketType(PROTOCOL, SENDER, 0x08, "BlockBreakAnimation", "SPacketBlockBreakAnim");
-			public static final PacketType TILE_ENTITY_DATA =             new PacketType(PROTOCOL, SENDER, 0x09, "TileEntityData", "SPacketUpdateTileEntity");
-			public static final PacketType BLOCK_ACTION =                 new PacketType(PROTOCOL, SENDER, 0x0A, "BlockAction", "SPacketBlockAction");
-			public static final PacketType BLOCK_CHANGE =                 new PacketType(PROTOCOL, SENDER, 0x0B, "BlockChange", "SPacketBlockChange");
-			public static final PacketType BOSS =                         new PacketType(PROTOCOL, SENDER, 0x0C, "Boss", "SPacketUpdateBossInfo");
-			public static final PacketType SERVER_DIFFICULTY =            new PacketType(PROTOCOL, SENDER, 0x0D, "ServerDifficulty", "SPacketServerDifficulty");
-			public static final PacketType CHAT =                         new PacketType(PROTOCOL, SENDER, 0x0E, "Chat", "SPacketChat");
+			public static final PacketType BUNDLE =                       new PacketType(PROTOCOL, SENDER, 0x00, "Delimiter", "BundleDelimiterPacket");
+			public static final PacketType SPAWN_ENTITY =                 new PacketType(PROTOCOL, SENDER, 0x01, "SpawnEntity", "SPacketSpawnObject");
+			public static final PacketType SPAWN_ENTITY_EXPERIENCE_ORB =  new PacketType(PROTOCOL, SENDER, 0x02, "SpawnEntityExperienceOrb", "SPacketSpawnExperienceOrb");
+			public static final PacketType NAMED_ENTITY_SPAWN =           new PacketType(PROTOCOL, SENDER, 0x03, "NamedEntitySpawn", "SPacketSpawnPlayer");
+			public static final PacketType ANIMATION =                    new PacketType(PROTOCOL, SENDER, 0x04, "Animation", "SPacketAnimation");
+			public static final PacketType STATISTIC =                    new PacketType(PROTOCOL, SENDER, 0x05, "Statistic", "SPacketStatistics");
+			public static final PacketType BLOCK_CHANGED_ACK =            new PacketType(PROTOCOL, SENDER, 0x06, "BlockChangedAck");
+			public static final PacketType BLOCK_BREAK_ANIMATION =        new PacketType(PROTOCOL, SENDER, 0x07, "BlockBreakAnimation", "SPacketBlockBreakAnim");
+			public static final PacketType TILE_ENTITY_DATA =             new PacketType(PROTOCOL, SENDER, 0x08, "TileEntityData", "SPacketUpdateTileEntity");
+			public static final PacketType BLOCK_ACTION =                 new PacketType(PROTOCOL, SENDER, 0x09, "BlockAction", "SPacketBlockAction");
+			public static final PacketType BLOCK_CHANGE =                 new PacketType(PROTOCOL, SENDER, 0x0A, "BlockChange", "SPacketBlockChange");
+			public static final PacketType BOSS =                         new PacketType(PROTOCOL, SENDER, 0x0B, "Boss", "SPacketUpdateBossInfo");
+			public static final PacketType SERVER_DIFFICULTY =            new PacketType(PROTOCOL, SENDER, 0x0C, "ServerDifficulty", "SPacketServerDifficulty");
+			public static final PacketType CHUNKS_BIOMES =                new PacketType(PROTOCOL, SENDER, 0x0D, "ChunksBiomes", "ClientboundChunksBiomesPacket");
+			public static final PacketType CLEAR_TITLES =                 new PacketType(PROTOCOL, SENDER, 0x0E, "ClearTitles");
 			public static final PacketType TAB_COMPLETE =                 new PacketType(PROTOCOL, SENDER, 0x0F, "TabComplete", "SPacketTabComplete");
 			public static final PacketType COMMANDS =                     new PacketType(PROTOCOL, SENDER, 0x10, "Commands");
-			public static final PacketType TRANSACTION =                  new PacketType(PROTOCOL, SENDER, 0x11, "Transaction", "SPacketConfirmTransaction");
-			public static final PacketType CLOSE_WINDOW =                 new PacketType(PROTOCOL, SENDER, 0x12, "CloseWindow", "SPacketCloseWindow");
-			public static final PacketType WINDOW_ITEMS =                 new PacketType(PROTOCOL, SENDER, 0x13, "WindowItems", "SPacketWindowItems");
-			public static final PacketType WINDOW_DATA =                  new PacketType(PROTOCOL, SENDER, 0x14, "WindowData", "SPacketWindowProperty");
-			public static final PacketType SET_SLOT =                     new PacketType(PROTOCOL, SENDER, 0x15, "SetSlot", "SPacketSetSlot");
-			public static final PacketType SET_COOLDOWN =                 new PacketType(PROTOCOL, SENDER, 0x16, "SetCooldown", "SPacketCooldown");
+			public static final PacketType CLOSE_WINDOW =                 new PacketType(PROTOCOL, SENDER, 0x11, "CloseWindow", "SPacketCloseWindow");
+			public static final PacketType WINDOW_ITEMS =                 new PacketType(PROTOCOL, SENDER, 0x12, "WindowItems", "SPacketWindowItems");
+			public static final PacketType WINDOW_DATA =                  new PacketType(PROTOCOL, SENDER, 0x13, "WindowData", "SPacketWindowProperty");
+			public static final PacketType SET_SLOT =                     new PacketType(PROTOCOL, SENDER, 0x14, "SetSlot", "SPacketSetSlot");
+			public static final PacketType SET_COOLDOWN =                 new PacketType(PROTOCOL, SENDER, 0x15, "SetCooldown", "SPacketCooldown");
+			public static final PacketType CUSTOM_CHAT_COMPLETIONS =      new PacketType(PROTOCOL, SENDER, 0x16, "CustomChatCompletions");
 			public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x17, "CustomPayload", "SPacketCustomPayload");
-			public static final PacketType CUSTOM_SOUND_EFFECT =          new PacketType(PROTOCOL, SENDER, 0x18, "CustomSoundEffect", "SPacketCustomSound");
-			public static final PacketType KICK_DISCONNECT =              new PacketType(PROTOCOL, SENDER, 0x19, "KickDisconnect", "SPacketDisconnect");
-			public static final PacketType ENTITY_STATUS =                new PacketType(PROTOCOL, SENDER, 0x1A, "EntityStatus", "SPacketEntityStatus");
-			public static final PacketType EXPLOSION =                    new PacketType(PROTOCOL, SENDER, 0x1B, "Explosion", "SPacketExplosion");
-			public static final PacketType UNLOAD_CHUNK =                 new PacketType(PROTOCOL, SENDER, 0x1C, "UnloadChunk", "SPacketUnloadChunk");
-			public static final PacketType GAME_STATE_CHANGE =            new PacketType(PROTOCOL, SENDER, 0x1D, "GameStateChange", "SPacketChangeGameState");
-			public static final PacketType OPEN_WINDOW_HORSE =            new PacketType(PROTOCOL, SENDER, 0x1E, "OpenWindowHorse");
-			public static final PacketType KEEP_ALIVE =                   new PacketType(PROTOCOL, SENDER, 0x1F, "KeepAlive", "SPacketKeepAlive");
-			public static final PacketType MAP_CHUNK =                    new PacketType(PROTOCOL, SENDER, 0x20, "MapChunk", "SPacketChunkData");
-			public static final PacketType WORLD_EVENT =                  new PacketType(PROTOCOL, SENDER, 0x21, "WorldEvent", "SPacketEffect");
-			public static final PacketType WORLD_PARTICLES =              new PacketType(PROTOCOL, SENDER, 0x22, "WorldParticles", "SPacketParticles");
-			public static final PacketType LIGHT_UPDATE =                 new PacketType(PROTOCOL, SENDER, 0x23, "LightUpdate");
-			public static final PacketType LOGIN =                        new PacketType(PROTOCOL, SENDER, 0x24, "Login", "SPacketJoinGame");
-			public static final PacketType MAP =                          new PacketType(PROTOCOL, SENDER, 0x25, "Map", "SPacketMaps");
-			public static final PacketType OPEN_WINDOW_MERCHANT =         new PacketType(PROTOCOL, SENDER, 0x26, "OpenWindowMerchant");
-			public static final PacketType REL_ENTITY_MOVE =              new PacketType(PROTOCOL, SENDER, 0x27, "Entity$RelEntityMove", "SPacketEntity$S15PacketEntityRelMove");
-			public static final PacketType REL_ENTITY_MOVE_LOOK =         new PacketType(PROTOCOL, SENDER, 0x28, "Entity$RelEntityMoveLook", "SPacketEntity$S17PacketEntityLookMove");
-			public static final PacketType ENTITY_LOOK =                  new PacketType(PROTOCOL, SENDER, 0x29, "Entity$EntityLook", "SPacketEntity$S16PacketEntityLook");
-			public static final PacketType ENTITY =                       new PacketType(PROTOCOL, SENDER, 0x2A, "Entity", "SPacketEntity");
-			public static final PacketType VEHICLE_MOVE =                 new PacketType(PROTOCOL, SENDER, 0x2B, "VehicleMove", "SPacketMoveVehicle");
-			public static final PacketType OPEN_BOOK =                    new PacketType(PROTOCOL, SENDER, 0x2C, "OpenBook");
-			public static final PacketType OPEN_WINDOW =                  new PacketType(PROTOCOL, SENDER, 0x2D, "OpenWindow", "SPacketOpenWindow");
-			public static final PacketType OPEN_SIGN_EDITOR =             new PacketType(PROTOCOL, SENDER, 0x2E, "OpenSignEditor", "SPacketSignEditorOpen");
-			public static final PacketType AUTO_RECIPE =                  new PacketType(PROTOCOL, SENDER, 0x2F, "AutoRecipe", "SPacketPlaceGhostRecipe");
-			public static final PacketType ABILITIES =                    new PacketType(PROTOCOL, SENDER, 0x30, "Abilities", "SPacketPlayerAbilities");
-			public static final PacketType COMBAT_EVENT =                 new PacketType(PROTOCOL, SENDER, 0x31, "CombatEvent", "SPacketCombatEvent");
-			public static final PacketType PLAYER_INFO =                  new PacketType(PROTOCOL, SENDER, 0x32, "PlayerInfo", "SPacketPlayerListItem");
-			public static final PacketType LOOK_AT =                      new PacketType(PROTOCOL, SENDER, 0x33, "LookAt", "SPacketPlayerPosLook");
-			public static final PacketType POSITION =                     new PacketType(PROTOCOL, SENDER, 0x34, "Position");
-			public static final PacketType RECIPES =                      new PacketType(PROTOCOL, SENDER, 0x35, "Recipes", "SPacketRecipeBook");
-			public static final PacketType ENTITY_DESTROY =               new PacketType(PROTOCOL, SENDER, 0x36, "EntityDestroy", "SPacketDestroyEntities");
-			public static final PacketType REMOVE_ENTITY_EFFECT =         new PacketType(PROTOCOL, SENDER, 0x37, "RemoveEntityEffect", "SPacketRemoveEntityEffect");
-			public static final PacketType RESOURCE_PACK_SEND =           new PacketType(PROTOCOL, SENDER, 0x38, "ResourcePackSend", "SPacketResourcePackSend");
-			public static final PacketType RESPAWN =                      new PacketType(PROTOCOL, SENDER, 0x39, "Respawn", "SPacketRespawn");
-			public static final PacketType ENTITY_HEAD_ROTATION =         new PacketType(PROTOCOL, SENDER, 0x3A, "EntityHeadRotation", "SPacketEntityHeadLook");
-			public static final PacketType MULTI_BLOCK_CHANGE =           new PacketType(PROTOCOL, SENDER, 0x3B, "MultiBlockChange", "SPacketMultiBlockChange");
-			public static final PacketType SELECT_ADVANCEMENT_TAB =       new PacketType(PROTOCOL, SENDER, 0x3C, "SelectAdvancementTab", "SPacketSelectAdvancementsTab");
-			public static final PacketType WORLD_BORDER =                 new PacketType(PROTOCOL, SENDER, 0x3D, "WorldBorder", "SPacketWorldBorder");
-			public static final PacketType CAMERA =                       new PacketType(PROTOCOL, SENDER, 0x3E, "Camera", "SPacketCamera");
-			public static final PacketType HELD_ITEM_SLOT =               new PacketType(PROTOCOL, SENDER, 0x3F, "HeldItemSlot", "SPacketHeldItemChange");
-			public static final PacketType VIEW_CENTRE =                  new PacketType(PROTOCOL, SENDER, 0x40, "ViewCentre");
-			public static final PacketType VIEW_DISTANCE =                new PacketType(PROTOCOL, SENDER, 0x41, "ViewDistance");
-			public static final PacketType SPAWN_POSITION =               new PacketType(PROTOCOL, SENDER, 0x42, "SpawnPosition", "SPacketSpawnPosition");
-			public static final PacketType SCOREBOARD_DISPLAY_OBJECTIVE = new PacketType(PROTOCOL, SENDER, 0x43, "ScoreboardDisplayObjective", "SPacketDisplayObjective");
-			public static final PacketType ENTITY_METADATA =              new PacketType(PROTOCOL, SENDER, 0x44, "EntityMetadata", "SPacketEntityMetadata");
-			public static final PacketType ATTACH_ENTITY =                new PacketType(PROTOCOL, SENDER, 0x45, "AttachEntity", "SPacketEntityAttach");
-			public static final PacketType ENTITY_VELOCITY =              new PacketType(PROTOCOL, SENDER, 0x46, "EntityVelocity", "SPacketEntityVelocity");
-			public static final PacketType ENTITY_EQUIPMENT =             new PacketType(PROTOCOL, SENDER, 0x47, "EntityEquipment", "SPacketEntityEquipment");
-			public static final PacketType EXPERIENCE =                   new PacketType(PROTOCOL, SENDER, 0x48, "Experience", "SPacketSetExperience");
-			public static final PacketType UPDATE_HEALTH =                new PacketType(PROTOCOL, SENDER, 0x49, "UpdateHealth", "SPacketUpdateHealth");
-			public static final PacketType SCOREBOARD_OBJECTIVE =         new PacketType(PROTOCOL, SENDER, 0x4A, "ScoreboardObjective", "SPacketScoreboardObjective");
-			public static final PacketType MOUNT =                        new PacketType(PROTOCOL, SENDER, 0x4B, "Mount", "SPacketSetPassengers");
-			public static final PacketType SCOREBOARD_TEAM =              new PacketType(PROTOCOL, SENDER, 0x4C, "ScoreboardTeam", "SPacketTeams");
-			public static final PacketType SCOREBOARD_SCORE =             new PacketType(PROTOCOL, SENDER, 0x4D, "ScoreboardScore", "SPacketUpdateScore");
-			public static final PacketType UPDATE_TIME =                  new PacketType(PROTOCOL, SENDER, 0x4E, "UpdateTime", "SPacketTimeUpdate");
-			public static final PacketType TITLE =                        new PacketType(PROTOCOL, SENDER, 0x4F, "Title", "SPacketTitle");
-			public static final PacketType ENTITY_SOUND =                 new PacketType(PROTOCOL, SENDER, 0x50, "EntitySound", "SPacketSoundEffect");
-			public static final PacketType NAMED_SOUND_EFFECT =           new PacketType(PROTOCOL, SENDER, 0x51, "NamedSoundEffect");
-			public static final PacketType STOP_SOUND =                   new PacketType(PROTOCOL, SENDER, 0x52, "StopSound");
-			public static final PacketType PLAYER_LIST_HEADER_FOOTER =    new PacketType(PROTOCOL, SENDER, 0x53, "PlayerListHeaderFooter", "SPacketPlayerListHeaderFooter");
-			public static final PacketType NBT_QUERY =                    new PacketType(PROTOCOL, SENDER, 0x54, "NBTQuery");
-			public static final PacketType COLLECT =                      new PacketType(PROTOCOL, SENDER, 0x55, "Collect", "SPacketCollectItem");
-			public static final PacketType ENTITY_TELEPORT =              new PacketType(PROTOCOL, SENDER, 0x56, "EntityTeleport", "SPacketEntityTeleport");
-			public static final PacketType ADVANCEMENTS =                 new PacketType(PROTOCOL, SENDER, 0x57, "Advancements", "SPacketAdvancementInfo");
-			public static final PacketType UPDATE_ATTRIBUTES =            new PacketType(PROTOCOL, SENDER, 0x58, "UpdateAttributes", "SPacketEntityProperties");
-			public static final PacketType ENTITY_EFFECT =                new PacketType(PROTOCOL, SENDER, 0x59, "EntityEffect", "SPacketEntityEffect");
-			public static final PacketType RECIPE_UPDATE =                new PacketType(PROTOCOL, SENDER, 0x5A, "RecipeUpdate");
-			public static final PacketType TAGS =                         new PacketType(PROTOCOL, SENDER, 0x5B, "Tags");
+			public static final PacketType DAMAGE_EVENT =                 new PacketType(PROTOCOL, SENDER, 0x18, "DamageEvent", "ClientboundDamageEventPacket");
+			public static final PacketType DELETE_CHAT_MESSAGE =          new PacketType(PROTOCOL, SENDER, 0x19, "DeleteChat");
+			public static final PacketType KICK_DISCONNECT =              new PacketType(PROTOCOL, SENDER, 0x1A, "KickDisconnect", "SPacketDisconnect");
+			public static final PacketType DISGUISED_CHAT =               new PacketType(PROTOCOL, SENDER, 0x1B, "DisguisedChat");
+			public static final PacketType ENTITY_STATUS =                new PacketType(PROTOCOL, SENDER, 0x1C, "EntityStatus", "SPacketEntityStatus");
+			public static final PacketType EXPLOSION =                    new PacketType(PROTOCOL, SENDER, 0x1D, "Explosion", "SPacketExplosion");
+			public static final PacketType UNLOAD_CHUNK =                 new PacketType(PROTOCOL, SENDER, 0x1E, "UnloadChunk", "SPacketUnloadChunk");
+			public static final PacketType GAME_STATE_CHANGE =            new PacketType(PROTOCOL, SENDER, 0x1F, "GameStateChange", "SPacketChangeGameState");
+			public static final PacketType OPEN_WINDOW_HORSE =            new PacketType(PROTOCOL, SENDER, 0x20, "OpenWindowHorse");
+			public static final PacketType HURT_ANIMATION =               new PacketType(PROTOCOL, SENDER, 0x21, "HurtAnimation", "ClientboundHurtAnimationPacket");
+			public static final PacketType INITIALIZE_BORDER =            new PacketType(PROTOCOL, SENDER, 0x22, "InitializeBorder");
+			public static final PacketType KEEP_ALIVE =                   new PacketType(PROTOCOL, SENDER, 0x23, "KeepAlive", "SPacketKeepAlive");
+			public static final PacketType MAP_CHUNK =                    new PacketType(PROTOCOL, SENDER, 0x24, "LevelChunkWithLight", "MapChunk", "SPacketChunkData");
+			public static final PacketType WORLD_EVENT =                  new PacketType(PROTOCOL, SENDER, 0x25, "WorldEvent", "SPacketEffect");
+			public static final PacketType WORLD_PARTICLES =              new PacketType(PROTOCOL, SENDER, 0x26, "WorldParticles", "SPacketParticles");
+			public static final PacketType LIGHT_UPDATE =                 new PacketType(PROTOCOL, SENDER, 0x27, "LightUpdate");
+			public static final PacketType LOGIN =                        new PacketType(PROTOCOL, SENDER, 0x28, "Login", "SPacketJoinGame");
+			public static final PacketType MAP =                          new PacketType(PROTOCOL, SENDER, 0x29, "Map", "SPacketMaps");
+			public static final PacketType OPEN_WINDOW_MERCHANT =         new PacketType(PROTOCOL, SENDER, 0x2A, "OpenWindowMerchant");
+			public static final PacketType REL_ENTITY_MOVE =              new PacketType(PROTOCOL, SENDER, 0x2B, "Entity$RelEntityMove", "Entity$PacketPlayOutRelEntityMove");
+			public static final PacketType REL_ENTITY_MOVE_LOOK =         new PacketType(PROTOCOL, SENDER, 0x2C, "Entity$RelEntityMoveLook", "Entity$PacketPlayOutRelEntityMoveLook");
+			public static final PacketType ENTITY_LOOK =                  new PacketType(PROTOCOL, SENDER, 0x2D, "Entity$EntityLook", "Entity$PacketPlayOutEntityLook");
+			public static final PacketType VEHICLE_MOVE =                 new PacketType(PROTOCOL, SENDER, 0x2E, "VehicleMove", "SPacketMoveVehicle");
+			public static final PacketType OPEN_BOOK =                    new PacketType(PROTOCOL, SENDER, 0x2F, "OpenBook");
+			public static final PacketType OPEN_WINDOW =                  new PacketType(PROTOCOL, SENDER, 0x30, "OpenWindow", "SPacketOpenWindow");
+			public static final PacketType OPEN_SIGN_EDITOR =             new PacketType(PROTOCOL, SENDER, 0x31, "OpenSignEditor", "SPacketSignEditorOpen");
+			public static final PacketType PING =                         new PacketType(PROTOCOL, SENDER, 0x32, "Ping");
+			public static final PacketType AUTO_RECIPE =                  new PacketType(PROTOCOL, SENDER, 0x33, "AutoRecipe", "SPacketPlaceGhostRecipe");
+			public static final PacketType ABILITIES =                    new PacketType(PROTOCOL, SENDER, 0x34, "Abilities", "SPacketPlayerAbilities");
+			public static final PacketType CHAT =                         new PacketType(PROTOCOL, SENDER, 0x35, "PlayerChat", "Chat", "SPacketChat");
+			public static final PacketType PLAYER_COMBAT_END =            new PacketType(PROTOCOL, SENDER, 0x36, "PlayerCombatEnd");
+			public static final PacketType PLAYER_COMBAT_ENTER =          new PacketType(PROTOCOL, SENDER, 0x37, "PlayerCombatEnter");
+			public static final PacketType PLAYER_COMBAT_KILL =           new PacketType(PROTOCOL, SENDER, 0x38, "PlayerCombatKill");
+			public static final PacketType PLAYER_INFO_REMOVE =           new PacketType(PROTOCOL, SENDER, 0x39, "PlayerInfoRemove");
+			public static final PacketType PLAYER_INFO =                  new PacketType(PROTOCOL, SENDER, 0x3A, "PlayerInfoUpdate", "PlayerInfo");
+			public static final PacketType LOOK_AT =                      new PacketType(PROTOCOL, SENDER, 0x3B, "LookAt", "SPacketPlayerPosLook");
+			public static final PacketType POSITION =                     new PacketType(PROTOCOL, SENDER, 0x3C, "Position");
+			public static final PacketType RECIPES =                      new PacketType(PROTOCOL, SENDER, 0x3D, "Recipes", "SPacketRecipeBook");
+			public static final PacketType ENTITY_DESTROY =               new PacketType(PROTOCOL, SENDER, 0x3E, "EntityDestroy", "SPacketDestroyEntities");
+			public static final PacketType REMOVE_ENTITY_EFFECT =         new PacketType(PROTOCOL, SENDER, 0x3F, "RemoveEntityEffect", "SPacketRemoveEntityEffect");
+			public static final PacketType RESOURCE_PACK_SEND =           new PacketType(PROTOCOL, SENDER, 0x40, "ResourcePackSend", "SPacketResourcePackSend");
+			public static final PacketType RESPAWN =                      new PacketType(PROTOCOL, SENDER, 0x41, "Respawn", "SPacketRespawn");
+			public static final PacketType ENTITY_HEAD_ROTATION =         new PacketType(PROTOCOL, SENDER, 0x42, "EntityHeadRotation", "SPacketEntityHeadLook");
+			public static final PacketType MULTI_BLOCK_CHANGE =           new PacketType(PROTOCOL, SENDER, 0x43, "MultiBlockChange", "SPacketMultiBlockChange");
+			public static final PacketType SELECT_ADVANCEMENT_TAB =       new PacketType(PROTOCOL, SENDER, 0x44, "SelectAdvancementTab", "SPacketSelectAdvancementsTab");
+			public static final PacketType SERVER_DATA =                  new PacketType(PROTOCOL, SENDER, 0x45, "ServerData");
+			public static final PacketType SET_ACTION_BAR_TEXT =          new PacketType(PROTOCOL, SENDER, 0x46, "SetActionBarText");
+			public static final PacketType SET_BORDER_CENTER =            new PacketType(PROTOCOL, SENDER, 0x47, "SetBorderCenter");
+			public static final PacketType SET_BORDER_LERP_SIZE =         new PacketType(PROTOCOL, SENDER, 0x48, "SetBorderLerpSize");
+			public static final PacketType SET_BORDER_SIZE =              new PacketType(PROTOCOL, SENDER, 0x49, "SetBorderSize");
+			public static final PacketType SET_BORDER_WARNING_DELAY =     new PacketType(PROTOCOL, SENDER, 0x4A, "SetBorderWarningDelay");
+			public static final PacketType SET_BORDER_WARNING_DISTANCE =  new PacketType(PROTOCOL, SENDER, 0x4B, "SetBorderWarningDistance");
+			public static final PacketType CAMERA =                       new PacketType(PROTOCOL, SENDER, 0x4C, "Camera", "SPacketCamera");
+			public static final PacketType HELD_ITEM_SLOT =               new PacketType(PROTOCOL, SENDER, 0x4D, "HeldItemSlot", "SPacketHeldItemChange");
+			public static final PacketType VIEW_CENTRE =                  new PacketType(PROTOCOL, SENDER, 0x4E, "ViewCentre");
+			public static final PacketType VIEW_DISTANCE =                new PacketType(PROTOCOL, SENDER, 0x4F, "ViewDistance");
+			public static final PacketType SPAWN_POSITION =               new PacketType(PROTOCOL, SENDER, 0x50, "SpawnPosition", "SPacketSpawnPosition");
+			public static final PacketType SCOREBOARD_DISPLAY_OBJECTIVE = new PacketType(PROTOCOL, SENDER, 0x51, "ScoreboardDisplayObjective", "SPacketDisplayObjective");
+			public static final PacketType ENTITY_METADATA =              new PacketType(PROTOCOL, SENDER, 0x52, "EntityMetadata", "SPacketEntityMetadata");
+			public static final PacketType ATTACH_ENTITY =                new PacketType(PROTOCOL, SENDER, 0x53, "AttachEntity", "SPacketEntityAttach");
+			public static final PacketType ENTITY_VELOCITY =              new PacketType(PROTOCOL, SENDER, 0x54, "EntityVelocity", "SPacketEntityVelocity");
+			public static final PacketType ENTITY_EQUIPMENT =             new PacketType(PROTOCOL, SENDER, 0x55, "EntityEquipment", "SPacketEntityEquipment");
+			public static final PacketType EXPERIENCE =                   new PacketType(PROTOCOL, SENDER, 0x56, "Experience", "SPacketSetExperience");
+			public static final PacketType UPDATE_HEALTH =                new PacketType(PROTOCOL, SENDER, 0x57, "UpdateHealth", "SPacketUpdateHealth");
+			public static final PacketType SCOREBOARD_OBJECTIVE =         new PacketType(PROTOCOL, SENDER, 0x58, "ScoreboardObjective", "SPacketScoreboardObjective");
+			public static final PacketType MOUNT =                        new PacketType(PROTOCOL, SENDER, 0x59, "Mount", "SPacketSetPassengers");
+			public static final PacketType SCOREBOARD_TEAM =              new PacketType(PROTOCOL, SENDER, 0x5A, "ScoreboardTeam", "SPacketTeams");
+			public static final PacketType SCOREBOARD_SCORE =             new PacketType(PROTOCOL, SENDER, 0x5B, "ScoreboardScore", "SPacketUpdateScore");
+			public static final PacketType UPDATE_SIMULATION_DISTANCE =   new PacketType(PROTOCOL, SENDER, 0x5C, "SetSimulationDistance");
+			public static final PacketType SET_SUBTITLE_TEXT =            new PacketType(PROTOCOL, SENDER, 0x5D, "SetSubtitleText");
+			public static final PacketType UPDATE_TIME =                  new PacketType(PROTOCOL, SENDER, 0x5E, "UpdateTime", "SPacketTimeUpdate");
+			public static final PacketType SET_TITLE_TEXT =               new PacketType(PROTOCOL, SENDER, 0x5F, "SetTitleText");
+			public static final PacketType SET_TITLES_ANIMATION =         new PacketType(PROTOCOL, SENDER, 0x60, "SetTitlesAnimation");
+			public static final PacketType ENTITY_SOUND =                 new PacketType(PROTOCOL, SENDER, 0x61, "EntitySound", "SPacketSoundEffect");
+			public static final PacketType NAMED_SOUND_EFFECT =           new PacketType(PROTOCOL, SENDER, 0x62, "NamedSoundEffect");
+			public static final PacketType STOP_SOUND =                   new PacketType(PROTOCOL, SENDER, 0x63, "StopSound");
+			public static final PacketType SYSTEM_CHAT =                  new PacketType(PROTOCOL, SENDER, 0x64, "SystemChat");
+			public static final PacketType PLAYER_LIST_HEADER_FOOTER =    new PacketType(PROTOCOL, SENDER, 0x65, "PlayerListHeaderFooter", "SPacketPlayerListHeaderFooter");
+			public static final PacketType NBT_QUERY =                    new PacketType(PROTOCOL, SENDER, 0x66, "NBTQuery");
+			public static final PacketType COLLECT =                      new PacketType(PROTOCOL, SENDER, 0x67, "Collect", "SPacketCollectItem");
+			public static final PacketType ENTITY_TELEPORT =              new PacketType(PROTOCOL, SENDER, 0x68, "EntityTeleport", "SPacketEntityTeleport");
+			public static final PacketType ADVANCEMENTS =                 new PacketType(PROTOCOL, SENDER, 0x69, "Advancements", "SPacketAdvancementInfo");
+			public static final PacketType UPDATE_ATTRIBUTES =            new PacketType(PROTOCOL, SENDER, 0x6A, "UpdateAttributes", "SPacketEntityProperties");
+			public static final PacketType UPDATE_ENABLED_FEATURES =      new PacketType(PROTOCOL, SENDER, 0x6B, "UpdateEnabledFeatures");
+			public static final PacketType ENTITY_EFFECT =                new PacketType(PROTOCOL, SENDER, 0x6C, "EntityEffect", "SPacketEntityEffect");
+			public static final PacketType RECIPE_UPDATE =                new PacketType(PROTOCOL, SENDER, 0x6D, "RecipeUpdate");
+			public static final PacketType TAGS =                         new PacketType(PROTOCOL, SENDER, 0x6E, "Tags");
 
 			// ---- Removed in 1.9
 
@@ -256,7 +275,7 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 			 * @deprecated Removed in 1.14
 			 */
 			@Deprecated
-			public static final PacketType BED =                          new PacketType(PROTOCOL, SENDER, 0x33, "Bed", "SPacketUseBed");
+			public static final PacketType BED =                          new PacketType(PROTOCOL, SENDER, 251, "Bed", "SPacketUseBed");
 
 			/**
 			 * @deprecated Renamed to {@link #BED}
@@ -268,9 +287,87 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 			 * @deprecated Removed in 1.16
 			 */
 			@Deprecated
-			public static final PacketType SPAWN_ENTITY_WEATHER =         new PacketType(PROTOCOL, SENDER, 0x02, "SpawnEntityWeather", "SPacketSpawnGlobalEntity");
+			public static final PacketType SPAWN_ENTITY_WEATHER =         new PacketType(PROTOCOL, SENDER, 250, "SpawnEntityWeather", "SPacketSpawnGlobalEntity");
 
-			private final static Server INSTANCE = new Server();
+			/**
+			 * @deprecated Removed in 1.17, split into separate packets
+			 */
+			@Deprecated
+			public static final PacketType TITLE = new PacketType(PROTOCOL, SENDER, 249, "Title");
+
+			/**
+			 * @deprecated Removed in 1.17, split into separate packets
+			 */
+			@Deprecated
+			public static final PacketType WORLD_BORDER = new PacketType(PROTOCOL, SENDER, 248, "WorldBorder");
+
+			/**
+			 * @deprecated Removed in 1.17, split into separate packets
+			 */
+			@Deprecated
+			public static final PacketType COMBAT_EVENT = new PacketType(PROTOCOL, SENDER, 247, "CombatEvent");
+
+			/**
+			 * @deprecated Removed in 1.17
+			 */
+			@Deprecated
+			public static final PacketType TRANSACTION = new PacketType(PROTOCOL, SENDER, 246, "Transaction", "SPacketConfirmTransaction");
+
+			/**
+			 * @deprecated Made abstract in 1.17, no actual packet anymore
+			 */
+			@Deprecated
+			public static final PacketType ENTITY = new PacketType(PROTOCOL, SENDER, 245, "Entity", "SPacketEntity");
+
+			/**
+			 * @deprecated Removed in 1.19
+			 */
+			@Deprecated
+			public static final PacketType SPAWN_ENTITY_LIVING = new PacketType(PROTOCOL, SENDER, 244, "SpawnEntityLiving", "SPacketSpawnMob");
+
+			/**
+			 * @deprecated Removed in 1.19
+			 */
+			@Deprecated
+			public static final PacketType SPAWN_ENTITY_PAINTING = new PacketType(PROTOCOL, SENDER, 243, "SpawnEntityPainting", "SPacketSpawnPainting");
+
+			/**
+			 * @deprecated Removed in 1.19
+			 */
+			@Deprecated
+			public static final PacketType ADD_VIBRATION_SIGNAL = new PacketType(PROTOCOL, SENDER, 242, "AddVibrationSignal");
+
+			/**
+			 * @deprecated Removed in 1.19
+			 */
+			@Deprecated
+			public static final PacketType BLOCK_BREAK = new PacketType(PROTOCOL, SENDER, 241, "BlockBreak");
+
+			/**
+			 * @deprecated Removed in 1.19.3
+			 */
+			@Deprecated
+			public static final PacketType CHAT_PREVIEW =                 new PacketType(PROTOCOL, SENDER, 0x0C, "ChatPreview");
+
+			/**
+			 * @deprecated Removed in 1.19.3
+			 */
+			@Deprecated
+			public static final PacketType PLAYER_CHAT_HEADER =           new PacketType(PROTOCOL, SENDER, 0x32, "PlayerChatHeader");
+
+			/**
+			 * @deprecated Removed in 1.19.3
+			 */
+			@Deprecated
+			public static final PacketType SET_DISPLAY_CHAT_PREVIEW =     new PacketType(PROTOCOL, SENDER, 0x4E, "SetDisplayChatPreview");
+
+			/**
+			 * @deprecated Removed in 1.19.3
+			 */
+			@Deprecated
+			public static final PacketType CUSTOM_SOUND_EFFECT =          new PacketType(PROTOCOL, SENDER, 0x16, "CustomSoundEffect", "SPacketCustomSound");
+
+			private static final Server INSTANCE = new Server();
 
 			// Prevent accidental construction
 			private Server() { super(); }
@@ -288,58 +385,79 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		 * @author Kristian
 		 */
 		public static class Client extends PacketTypeEnum {
-			private final static Sender SENDER = Sender.CLIENT;
+			private static final Sender SENDER = Sender.CLIENT;
 
 			public static final PacketType TELEPORT_ACCEPT =              new PacketType(PROTOCOL, SENDER, 0x00, "TeleportAccept", "CPacketConfirmTeleport");
 			public static final PacketType TILE_NBT_QUERY =               new PacketType(PROTOCOL, SENDER, 0x01, "TileNBTQuery");
 			public static final PacketType DIFFICULTY_CHANGE =            new PacketType(PROTOCOL, SENDER, 0x02, "DifficultyChange");
-			public static final PacketType CHAT =                         new PacketType(PROTOCOL, SENDER, 0x03, "Chat", "CPacketChatMessage");
-			public static final PacketType CLIENT_COMMAND =               new PacketType(PROTOCOL, SENDER, 0x04, "ClientCommand", "CPacketClientStatus");
-			public static final PacketType SETTINGS =                     new PacketType(PROTOCOL, SENDER, 0x05, "Settings", "CPacketClientSettings");
-			public static final PacketType TAB_COMPLETE =                 new PacketType(PROTOCOL, SENDER, 0x06, "TabComplete", "CPacketTabComplete");
-			public static final PacketType TRANSACTION =                  new PacketType(PROTOCOL, SENDER, 0x07, "Transaction", "CPacketConfirmTransaction");
-			public static final PacketType ENCHANT_ITEM =                 new PacketType(PROTOCOL, SENDER, 0x08, "EnchantItem", "CPacketEnchantItem");
-			public static final PacketType WINDOW_CLICK =                 new PacketType(PROTOCOL, SENDER, 0x09, "WindowClick", "CPacketClickWindow");
-			public static final PacketType CLOSE_WINDOW =                 new PacketType(PROTOCOL, SENDER, 0x0A, "CloseWindow", "CPacketCloseWindow");
-			public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x0B, "CustomPayload", "CPacketCustomPayload");
-			public static final PacketType B_EDIT =                       new PacketType(PROTOCOL, SENDER, 0x0C, "BEdit");
-			public static final PacketType ENTITY_NBT_QUERY =             new PacketType(PROTOCOL, SENDER, 0x0D, "EntityNBTQuery");
-			public static final PacketType USE_ENTITY =                   new PacketType(PROTOCOL, SENDER, 0x0E, "UseEntity", "CPacketUseEntity");
-			public static final PacketType JIGSAW_GENERATE =              new PacketType(PROTOCOL, SENDER, 0x0F, "JigsawGenerate");
-			public static final PacketType KEEP_ALIVE =                   new PacketType(PROTOCOL, SENDER, 0x10, "KeepAlive", "CPacketKeepAlive");
-			public static final PacketType DIFFICULTY_LOCK =              new PacketType(PROTOCOL, SENDER, 0x11, "DifficultyLock");
-			public static final PacketType POSITION =                     new PacketType(PROTOCOL, SENDER, 0x12, "Flying$Position", "CPacketPlayer$Position");
-			public static final PacketType POSITION_LOOK =                new PacketType(PROTOCOL, SENDER, 0x13, "Flying$PositionLook", "CPacketPlayer$PositionRotation");
-			public static final PacketType LOOK =                         new PacketType(PROTOCOL, SENDER, 0x14, "Flying$Look", "CPacketPlayer$Rotation");
-			public static final PacketType FLYING =                       new PacketType(PROTOCOL, SENDER, 0x15, "Flying", "CPacketPlayer");
-			public static final PacketType VEHICLE_MOVE =                 new PacketType(PROTOCOL, SENDER, 0x16, "VehicleMove", "CPacketVehicleMove");
-			public static final PacketType BOAT_MOVE =                    new PacketType(PROTOCOL, SENDER, 0x17, "BoatMove", "CPacketSteerBoat");
-			public static final PacketType PICK_ITEM =                    new PacketType(PROTOCOL, SENDER, 0x18, "PickItem");
-			public static final PacketType AUTO_RECIPE =                  new PacketType(PROTOCOL, SENDER, 0x19, "AutoRecipe", "CPacketPlaceRecipe");
-			public static final PacketType ABILITIES =                    new PacketType(PROTOCOL, SENDER, 0x1A, "Abilities", "CPacketPlayerAbilities");
-			public static final PacketType BLOCK_DIG =                    new PacketType(PROTOCOL, SENDER, 0x1B, "BlockDig", "CPacketPlayerDigging");
-			public static final PacketType ENTITY_ACTION =                new PacketType(PROTOCOL, SENDER, 0x1C, "EntityAction", "CPacketEntityAction");
-			public static final PacketType STEER_VEHICLE =                new PacketType(PROTOCOL, SENDER, 0x1D, "SteerVehicle", "CPacketInput");
-			public static final PacketType RECIPE_SETTINGS =              new PacketType(PROTOCOL, SENDER, 0x1E, "RecipeSettings");
-			public static final PacketType RECIPE_DISPLAYED =             new PacketType(PROTOCOL, SENDER, 0x1F, "RecipeDisplayed", "CPacketRecipeInfo");
-			public static final PacketType ITEM_NAME =                    new PacketType(PROTOCOL, SENDER, 0x20, "ItemName");
-			public static final PacketType RESOURCE_PACK_STATUS =         new PacketType(PROTOCOL, SENDER, 0x21, "ResourcePackStatus", "CPacketResourcePackStatus");
-			public static final PacketType ADVANCEMENTS =                 new PacketType(PROTOCOL, SENDER, 0x22, "Advancements", "CPacketSeenAdvancements");
-			public static final PacketType TR_SEL =                       new PacketType(PROTOCOL, SENDER, 0x23, "TrSel");
-			public static final PacketType BEACON =                       new PacketType(PROTOCOL, SENDER, 0x24, "Beacon");
-			public static final PacketType HELD_ITEM_SLOT =               new PacketType(PROTOCOL, SENDER, 0x25, "HeldItemSlot", "CPacketHeldItemChange");
-			public static final PacketType SET_COMMAND_BLOCK =            new PacketType(PROTOCOL, SENDER, 0x26, "SetCommandBlock");
-			public static final PacketType SET_COMMAND_MINECART =         new PacketType(PROTOCOL, SENDER, 0x27, "SetCommandMinecart");
-			public static final PacketType SET_CREATIVE_SLOT =            new PacketType(PROTOCOL, SENDER, 0x28, "SetCreativeSlot", "CPacketCreativeInventoryAction");
-			public static final PacketType SET_JIGSAW =                   new PacketType(PROTOCOL, SENDER, 0x29, "SetJigsaw");
-			public static final PacketType STRUCT =                       new PacketType(PROTOCOL, SENDER, 0x2A, "Struct");
-			public static final PacketType UPDATE_SIGN =                  new PacketType(PROTOCOL, SENDER, 0x2B, "UpdateSign", "CPacketUpdateSign");
-			public static final PacketType ARM_ANIMATION =                new PacketType(PROTOCOL, SENDER, 0x2C, "ArmAnimation", "CPacketAnimation");
-			public static final PacketType SPECTATE =                     new PacketType(PROTOCOL, SENDER, 0x2D, "Spectate", "CPacketSpectate");
-			public static final PacketType USE_ITEM =                     new PacketType(PROTOCOL, SENDER, 0x2E, "UseItem", "CPacketPlayerTryUseItemOnBlock");
-			public static final PacketType BLOCK_PLACE =                  new PacketType(PROTOCOL, SENDER, 0x2F, "BlockPlace", "CPacketPlayerTryUseItem");
+			public static final PacketType CHAT_ACK =                     new PacketType(PROTOCOL, SENDER, 0x03, "ChatAck");
+			public static final PacketType CHAT_COMMAND =                 new PacketType(PROTOCOL, SENDER, 0x04, "ChatCommand");
+			public static final PacketType CHAT =                         new PacketType(PROTOCOL, SENDER, 0x05, "Chat", "CPacketChatMessage");
+			public static final PacketType CHAT_SESSION_UPDATE =          new PacketType(PROTOCOL, SENDER, 0x06, "ChatSessionUpdate");
+			public static final PacketType CLIENT_COMMAND =               new PacketType(PROTOCOL, SENDER, 0x07, "ClientCommand", "CPacketClientStatus");
+			public static final PacketType SETTINGS =                     new PacketType(PROTOCOL, SENDER, 0x08, "Settings", "CPacketClientSettings");
+			public static final PacketType TAB_COMPLETE =                 new PacketType(PROTOCOL, SENDER, 0x09, "TabComplete", "CPacketTabComplete");
+			public static final PacketType ENCHANT_ITEM =                 new PacketType(PROTOCOL, SENDER, 0x0A, "EnchantItem", "CPacketEnchantItem");
+			public static final PacketType WINDOW_CLICK =                 new PacketType(PROTOCOL, SENDER, 0x0B, "WindowClick", "CPacketClickWindow");
+			public static final PacketType CLOSE_WINDOW =                 new PacketType(PROTOCOL, SENDER, 0x0C, "CloseWindow", "CPacketCloseWindow");
+			public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x0D, "CustomPayload", "CPacketCustomPayload");
+			public static final PacketType B_EDIT =                       new PacketType(PROTOCOL, SENDER, 0x0E, "BEdit");
+			public static final PacketType ENTITY_NBT_QUERY =             new PacketType(PROTOCOL, SENDER, 0x0F, "EntityNBTQuery");
+			public static final PacketType USE_ENTITY =                   new PacketType(PROTOCOL, SENDER, 0x10, "UseEntity", "CPacketUseEntity");
+			public static final PacketType JIGSAW_GENERATE =              new PacketType(PROTOCOL, SENDER, 0x11, "JigsawGenerate");
+			public static final PacketType KEEP_ALIVE =                   new PacketType(PROTOCOL, SENDER, 0x12, "KeepAlive", "CPacketKeepAlive");
+			public static final PacketType DIFFICULTY_LOCK =              new PacketType(PROTOCOL, SENDER, 0x13, "DifficultyLock");
+			public static final PacketType POSITION =                     new PacketType(PROTOCOL, SENDER, 0x14, "Flying$Position", "Flying$PacketPlayInPosition", "CPacketPlayer$Position");
+			public static final PacketType POSITION_LOOK =                new PacketType(PROTOCOL, SENDER, 0x15, "Flying$PositionLook", "Flying$PacketPlayInPositionLook", "CPacketPlayer$PositionRotation");
+			public static final PacketType LOOK =                         new PacketType(PROTOCOL, SENDER, 0x16, "Flying$Look", "Flying$PacketPlayInLook", "CPacketPlayer$Rotation");
+			public static final PacketType GROUND =                       new PacketType(PROTOCOL, SENDER, 0x17, "Flying$d");
+			public static final PacketType VEHICLE_MOVE =                 new PacketType(PROTOCOL, SENDER, 0x18, "VehicleMove", "CPacketVehicleMove");
+			public static final PacketType BOAT_MOVE =                    new PacketType(PROTOCOL, SENDER, 0x19, "BoatMove", "CPacketSteerBoat");
+			public static final PacketType PICK_ITEM =                    new PacketType(PROTOCOL, SENDER, 0x1A, "PickItem");
+			public static final PacketType AUTO_RECIPE =                  new PacketType(PROTOCOL, SENDER, 0x1B, "AutoRecipe", "CPacketPlaceRecipe");
+			public static final PacketType ABILITIES =                    new PacketType(PROTOCOL, SENDER, 0x1C, "Abilities", "CPacketPlayerAbilities");
+			public static final PacketType BLOCK_DIG =                    new PacketType(PROTOCOL, SENDER, 0x1D, "BlockDig", "CPacketPlayerDigging");
+			public static final PacketType ENTITY_ACTION =                new PacketType(PROTOCOL, SENDER, 0x1E, "EntityAction", "CPacketEntityAction");
+			public static final PacketType STEER_VEHICLE =                new PacketType(PROTOCOL, SENDER, 0x1F, "SteerVehicle", "CPacketInput");
+			public static final PacketType PONG =                         new PacketType(PROTOCOL, SENDER, 0x20, "Pong");
+			public static final PacketType RECIPE_SETTINGS =              new PacketType(PROTOCOL, SENDER, 0x21, "RecipeSettings");
+			public static final PacketType RECIPE_DISPLAYED =             new PacketType(PROTOCOL, SENDER, 0x22, "RecipeDisplayed", "CPacketRecipeInfo");
+			public static final PacketType ITEM_NAME =                    new PacketType(PROTOCOL, SENDER, 0x23, "ItemName");
+			public static final PacketType RESOURCE_PACK_STATUS =         new PacketType(PROTOCOL, SENDER, 0x24, "ResourcePackStatus", "CPacketResourcePackStatus");
+			public static final PacketType ADVANCEMENTS =                 new PacketType(PROTOCOL, SENDER, 0x25, "Advancements", "CPacketSeenAdvancements");
+			public static final PacketType TR_SEL =                       new PacketType(PROTOCOL, SENDER, 0x26, "TrSel");
+			public static final PacketType BEACON =                       new PacketType(PROTOCOL, SENDER, 0x27, "Beacon");
+			public static final PacketType HELD_ITEM_SLOT =               new PacketType(PROTOCOL, SENDER, 0x28, "HeldItemSlot", "CPacketHeldItemChange");
+			public static final PacketType SET_COMMAND_BLOCK =            new PacketType(PROTOCOL, SENDER, 0x29, "SetCommandBlock");
+			public static final PacketType SET_COMMAND_MINECART =         new PacketType(PROTOCOL, SENDER, 0x2A, "SetCommandMinecart");
+			public static final PacketType SET_CREATIVE_SLOT =            new PacketType(PROTOCOL, SENDER, 0x2B, "SetCreativeSlot", "CPacketCreativeInventoryAction");
+			public static final PacketType SET_JIGSAW =                   new PacketType(PROTOCOL, SENDER, 0x2C, "SetJigsaw");
+			public static final PacketType STRUCT =                       new PacketType(PROTOCOL, SENDER, 0x2D, "Struct");
+			public static final PacketType UPDATE_SIGN =                  new PacketType(PROTOCOL, SENDER, 0x2E, "UpdateSign", "CPacketUpdateSign");
+			public static final PacketType ARM_ANIMATION =                new PacketType(PROTOCOL, SENDER, 0x2F, "ArmAnimation", "CPacketAnimation");
+			public static final PacketType SPECTATE =                     new PacketType(PROTOCOL, SENDER, 0x30, "Spectate", "CPacketSpectate");
+			public static final PacketType USE_ITEM =                     new PacketType(PROTOCOL, SENDER, 0x31, "UseItem", "CPacketPlayerTryUseItemOnBlock");
+			public static final PacketType BLOCK_PLACE =                  new PacketType(PROTOCOL, SENDER, 0x32, "BlockPlace", "CPacketPlayerTryUseItem");
 
-			private final static Client INSTANCE = new Client();
+			/**
+			 * @deprecated Removed in 1.17
+			 */
+			@Deprecated
+			public static final PacketType TRANSACTION =                  new PacketType(PROTOCOL, SENDER, 255, "Transaction", "CPacketConfirmTransaction");
+
+			/**
+			 * @deprecated Removed in 1.17
+			 */
+			@Deprecated
+			public static final PacketType FLYING = 					  new PacketType(PROTOCOL, SENDER, 254, "Flying", "CPacketPlayer");
+
+			/**
+			 * @deprecated Removed in 1.19.3
+			 */
+			@Deprecated
+			public static final PacketType CHAT_PREVIEW =                 new PacketType(PROTOCOL, SENDER, 0x06, "ChatPreview");
+
+			private static final Client INSTANCE = new Client();
 
 			// Prevent accidental construction
 			private Client() { super(); }
@@ -362,17 +480,18 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 	 * @author Kristian
 	 */
 	public static class Status {
-		private static final Protocol PROTOCOL = Protocol.STATUS;
+		static final Protocol PROTOCOL = Protocol.STATUS;
 
 		/**
 		 * Outgoing packets.
 		 * @author Kristian
 		 */
 		public static class Server extends PacketTypeEnum {
-			private final static Sender SENDER = Sender.SERVER;
+			private static final Sender SENDER = Sender.SERVER;
 
 			@ForceAsync
 			public static final PacketType SERVER_INFO =                  new PacketType(PROTOCOL, SENDER, 0x00, "ServerInfo", "SPacketServerInfo");
+			@ForceAsync
 			public static final PacketType PONG =                         new PacketType(PROTOCOL, SENDER, 0x01, "Pong", "SPacketPong");
 
 			/**
@@ -382,7 +501,7 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 			@ForceAsync
 			public static final PacketType OUT_SERVER_INFO =              SERVER_INFO.clone();
 
-			private final static Server INSTANCE = new Server();
+			private static final Server INSTANCE = new Server();
 
 			// Prevent accidental construction
 			private Server() { super(); }
@@ -400,12 +519,13 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		 * @author Kristian
 		 */
 		public static class Client extends PacketTypeEnum {
-			private final static Sender SENDER = Sender.CLIENT;
+			private static final Sender SENDER = Sender.CLIENT;
 
 			public static final PacketType START =                        new PacketType(PROTOCOL, SENDER, 0x00, "Start", "CPacketServerQuery");
+			@ForceAsync
 			public static final PacketType PING =                         new PacketType(PROTOCOL, SENDER, 0x01, "Ping", "CPacketPing");
 
-			private final static Client INSTANCE = new Client();
+			private static final Client INSTANCE = new Client();
 
 			// Prevent accidental construction
 			private Client() { super(); }
@@ -428,22 +548,23 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 	 * @author Kristian
 	 */
 	public static class Login {
-		private static final Protocol PROTOCOL = Protocol.LOGIN;
+		static final Protocol PROTOCOL = Protocol.LOGIN;
 
 		/**
 		 * Outgoing packets.
 		 * @author Kristian
 		 */
 		public static class Server extends PacketTypeEnum {
-			private final static Sender SENDER = Sender.SERVER;
+			private static final Sender SENDER = Sender.SERVER;
 
+			@ForceAsync
 			public static final PacketType DISCONNECT =                   new PacketType(PROTOCOL, SENDER, 0x00, "Disconnect", "SPacketDisconnect");
 			public static final PacketType ENCRYPTION_BEGIN =             new PacketType(PROTOCOL, SENDER, 0x01, "EncryptionBegin", "SPacketEncryptionRequest");
 			public static final PacketType SUCCESS =                      new PacketType(PROTOCOL, SENDER, 0x02, "Success", "SPacketLoginSuccess");
 			public static final PacketType SET_COMPRESSION =              new PacketType(PROTOCOL, SENDER, 0x03, "SetCompression", "SPacketEnableCompression");
 			public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x04, "CustomPayload", "SPacketCustomPayload");
 
-			private final static Server INSTANCE = new Server();
+			private static final Server INSTANCE = new Server();
 
 			// Prevent accidental construction
 			private Server() { super(); }
@@ -461,13 +582,13 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		 * @author Kristian
 		 */
 		public static class Client extends PacketTypeEnum {
-			private final static Sender SENDER = Sender.CLIENT;
+			private static final Sender SENDER = Sender.CLIENT;
 
 			public static final PacketType START =                        new PacketType(PROTOCOL, SENDER, 0x00, "Start", "CPacketLoginStart");
 			public static final PacketType ENCRYPTION_BEGIN =             new PacketType(PROTOCOL, SENDER, 0x01, "EncryptionBegin", "CPacketEncryptionResponse");
 			public static final PacketType CUSTOM_PAYLOAD =               new PacketType(PROTOCOL, SENDER, 0x02, "CustomPayload", "CPacketCustomPayload");
 
-			private final static Client INSTANCE = new Client();
+			private static final Client INSTANCE = new Client();
 
 			// Prevent accidental construction
 			private Client() { super(); }
@@ -490,15 +611,23 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 	 * @author Kristian
 	 */
 	public enum Protocol {
-		HANDSHAKING,
-		PLAY,
-		STATUS,
-		LOGIN,
+		HANDSHAKING("Handshaking", "handshake"),
+		PLAY("Play", "game"),
+		STATUS("Status", "status"),
+		LOGIN("Login", "login"),
 
 		/**
 		 * Only for packets removed in Minecraft 1.7.2
 		 */
-		LEGACY;
+		LEGACY("", "");
+
+		private String packetName;
+		private String mojangName;
+
+		Protocol(String packetName, String mojangName) {
+			this.packetName = packetName;
+			this.mojangName = mojangName;
+		}
 
 		/**
 		 * Retrieve the correct protocol enum from a given vanilla enum instance.
@@ -520,7 +649,11 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		}
 
 		public String getPacketName() {
-			return WordUtils.capitalize(name().toLowerCase(Locale.ENGLISH));
+			return packetName;
+		}
+
+		public String getMojangName() {
+			return mojangName;
 		}
 
 		public String getMcpPacketName() {
@@ -537,12 +670,22 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		/**
 		 * Indicates that packets of this type will be sent by connected clients.
 		 */
-		CLIENT,
+		CLIENT("Serverbound", "In", "client"),
 
 		/**
 		 * Indicate that packets of this type will be sent by the current server.
 		 */
-		SERVER;
+		SERVER("Clientbound", "Out", "server");
+
+		private String mojangName;
+		private String packetName;
+		private String mcpName;
+
+		Sender(String mojangName, String packetName, String mcpName) {
+			this.mojangName = mojangName;
+			this.packetName = packetName;
+			this.mcpName = mcpName;
+		}
 
 		/**
 		 * Retrieve the equivialent connection side.
@@ -553,11 +696,15 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		}
 
 		public String getPacketName() {
-			return this == CLIENT ? "In" : "Out";
+			return packetName;
 		}
 
 		public String getMcpPacketName() {
-			return name().toLowerCase(Locale.ENGLISH);
+			return mcpName;
+		}
+
+		public String getMojangName() {
+			return mojangName;
 		}
 	}
 
@@ -574,13 +721,13 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 	/**
 	 * Protocol version of all the current IDs.
 	 */
-	private static final MinecraftVersion PROTOCOL_VERSION = MinecraftVersion.NETHER_UPDATE;
+	private static final MinecraftVersion PROTOCOL_VERSION = MinecraftVersion.LATEST;
 
 	private final Protocol protocol;
 	private final Sender sender;
 	private final int currentId;
 	private final MinecraftVersion version;
-	private final String[] classNames;
+	private final List<String> classNames;
 	String[] names;
 
 	private String name;
@@ -614,7 +761,8 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 	 * @return Every packet type.
 	 */
 	public static Iterable<PacketType> values() {
-		List<Iterable<? extends PacketType>> sources = Lists.newArrayList();
+		final List<Iterable<? extends PacketType>> sources = new ArrayList<>();
+
 		sources.add(Handshake.Client.getInstance());
 		sources.add(Handshake.Server.getInstance());
 		sources.add(Play.Client.getInstance());
@@ -710,7 +858,17 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		}
 	}
 
+	private static String formatMojangClassName(Protocol protocol, Sender sender, String name) {
+		return "net.minecraft.network.protocol." + protocol.getMojangName() + "." + sender.getMojangName()
+				+ name + "Packet";
+	}
+
 	private static String formatClassName(Protocol protocol, Sender sender, String name) {
+		if (MinecraftVersion.CAVES_CLIFFS_1.atOrAbove()) {
+			return "net.minecraft.network.protocol." + protocol.getMojangName() + ".Packet"
+					+ protocol.getPacketName() + sender.getPacketName() + name;
+		}
+
 		String base = MinecraftReflection.getMinecraftPackage() + ".Packet";
 		if (name.startsWith(base)) {
 			return name;
@@ -810,8 +968,8 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 
 		// Check any aliases
 		for (PacketType check : map.values()) {
-			String[] aliases = check.getClassNames();
-			if (aliases.length > 1) {
+			List<String> aliases = check.getClassNames();
+			if (aliases.size() > 1) {
 				for (String alias : aliases) {
 					if (alias.equals(clazz)) {
 						// We have a match!
@@ -852,7 +1010,9 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 	 * Determine if a given class represents a packet class.
 	 * @param packetClass - the class to lookup.
 	 * @return TRUE if this is a packet class, FALSE otherwise.
+	 * @deprecated Doesn't really have a purpose
 	 */
+	@Deprecated
 	public static boolean hasClass(Class<?> packetClass) {
 		return PacketRegistry.getPacketType(packetClass) != null;
 	}
@@ -931,12 +1091,13 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		this.currentId = currentId;
 		this.version = version;
 		
-		this.classNames = new String[names.length];
-		for (int i = 0; i < classNames.length; i++) {
+		this.classNames = new ArrayList<>();
+		for (int i = 0; i < names.length; i++) {
 			if (isMcpPacketName(names[i])) { // Minecraft MCP packets
-				classNames[i] = formatMcpClassName(protocol, sender, names[i]);
+				classNames.add(formatMcpClassName(protocol, sender, names[i]));
 			} else {
-				classNames[i] = formatClassName(protocol, sender, names[i]);
+				classNames.add(formatClassName(protocol, sender, names[i]));
+				classNames.add(formatMojangClassName(protocol, sender, names[i]));
 			}
 		}
 
@@ -997,7 +1158,7 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		return currentId;
 	}
 
-	public String[] getClassNames() {
+	public List<String> getClassNames() {
 		return classNames;
 	}
 
@@ -1006,11 +1167,7 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 	 * @return The packet class, or NULL if not found.
 	 */
 	public Class<?> getPacketClass() {
-		try {
-			return PacketRegistry.getPacketClassFromType(this);
-		} catch (Exception e) {
-			return null;
-		}
+		return PacketRegistry.tryGetPacketClass(this).orElse(null);
 	}
 
 	// Only used by Enum processor
@@ -1112,7 +1269,7 @@ public class PacketType implements Serializable, Cloneable, Comparable<PacketTyp
 		Class<?> clazz = getPacketClass();
 
 		if (clazz == null)
-			return name() + "[" + protocol + ", " + sender + ", " + currentId + ", classNames: " + Arrays.toString(classNames) + " (unregistered)]";
+			return name() + "[" + protocol + ", " + sender + ", " + currentId + ", classNames: " + classNames + " (unregistered)]";
 		else
 			return name() + "[class=" + clazz.getSimpleName() + ", id=" + currentId + "]";
 	}

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

@@ -23,11 +23,6 @@ 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>
@@ -37,7 +32,7 @@ import com.google.common.collect.Sets;
  */
 public class PacketTypeEnum implements Iterable<PacketType> {
 	// Used to convert between IDs and names
-	protected Set<PacketType> members = Sets.newHashSet();
+	protected Set<PacketType> members = new HashSet<>();
 
 	/**
 	 * Registers every declared PacketType field.
@@ -110,22 +105,6 @@ public class PacketTypeEnum implements Iterable<PacketType> {
 	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.

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

@@ -19,14 +19,14 @@ import com.google.common.collect.Multimap;
 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();
+		public final IntegerMap<PacketType> HANDSHAKE_CLIENT = new IntegerMap<>();
+		public final IntegerMap<PacketType> HANDSHAKE_SERVER = new IntegerMap<>();
+		public final IntegerMap<PacketType> GAME_CLIENT = new IntegerMap<>();
+		public final IntegerMap<PacketType> GAME_SERVER = new IntegerMap<>();
+		public final IntegerMap<PacketType> STATUS_CLIENT = new IntegerMap<>();
+		public final IntegerMap<PacketType> STATUS_SERVER = new IntegerMap<>();
+		public final IntegerMap<PacketType> LOGIN_CLIENT = new IntegerMap<>();
+		public final IntegerMap<PacketType> LOGIN_SERVER = new IntegerMap<>();
 		
 		/**
 		 * Retrieve the correct integer map for a specific protocol and sender.
@@ -52,14 +52,14 @@ class PacketTypeLookup {
 
 	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>();
+		public final Map<String, PacketType> HANDSHAKE_CLIENT = new ConcurrentHashMap<>();
+		public final Map<String, PacketType> HANDSHAKE_SERVER = new ConcurrentHashMap<>();
+		public final Map<String, PacketType> GAME_CLIENT = new ConcurrentHashMap<>();
+		public final Map<String, PacketType> GAME_SERVER = new ConcurrentHashMap<>();
+		public final Map<String, PacketType> STATUS_CLIENT = new ConcurrentHashMap<>();
+		public final Map<String, PacketType> STATUS_SERVER = new ConcurrentHashMap<>();
+		public final Map<String, PacketType> LOGIN_CLIENT = new ConcurrentHashMap<>();
+		public final Map<String, PacketType> LOGIN_SERVER = new ConcurrentHashMap<>();
 		
 		/**
 		 * Retrieve the correct integer map for a specific protocol and sender.
@@ -84,9 +84,9 @@ class PacketTypeLookup {
 	}
 	
 	// 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>();
+	private final IntegerMap<PacketType> legacyLookup = new IntegerMap<>();
+	private final IntegerMap<PacketType> serverLookup = new IntegerMap<>();
+	private final IntegerMap<PacketType> clientLookup = new IntegerMap<>();
 	
 	// Packets for 1.7.2
 	private final ProtocolSenderLookup idLookup = new ProtocolSenderLookup();
@@ -108,7 +108,7 @@ class PacketTypeLookup {
 			// 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);
+				classLookup.getMap(type.getProtocol(), type.getSender()).put(type.getClassNames().get(0), type);
 			}
 			nameLookup.put(type.name(), type);
 		}

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

@@ -1,29 +1,29 @@
 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;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.Deque;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Locale;
+import java.util.Set;
 
 class PacketTypeParser {
-	public final static Range<Integer> DEFAULT_MAX_RANGE = Range.closed(0, 255);
+	public static final 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();
+		final Set<PacketType> result = new HashSet<>();
 		side = null;
 		protocol = null;
 		
@@ -68,8 +68,7 @@ class PacketTypeParser {
 		
 		// Supply a default integer range
 		if (ranges.isEmpty() && result.isEmpty()) {
-			ranges = Lists.newArrayList();
-			ranges.add(defaultRange);
+			ranges = Collections.singletonList(defaultRange);
 		}
 		
 		for (Range<Integer> range : ranges) {
@@ -130,19 +129,20 @@ class PacketTypeParser {
 	 * @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;
+		if (text == null) return null;
+
+		switch (text.toLowerCase()) {
+			case "handshake":
+			case "handshaking":
+				return Protocol.HANDSHAKING;
+			case "login":
+				return Protocol.LOGIN;
+			case "play":
+			case "game":
+				return Protocol.PLAY;
+			case "status":
+				return Protocol.STATUS;
+			default: return null;
+		}
 	}
 }

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

@@ -1,43 +1,41 @@
 /**
- *  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
+ * ProtocolLib - Bukkit server library that allows access to the Minecraft protocol. Copyright (C) 2012 Kristian S.
+ * Stangeland
+ * <p>
+ * 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.
+ * <p>
+ * 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.
+ * <p>
+ * 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 com.google.common.collect.ImmutableList;
+import com.google.common.io.Files;
 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;
+import java.io.File;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
 
 /**
  * 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";
@@ -46,11 +44,10 @@ public class ProtocolConfig {
 	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 CHAT_WARNINGS = "chat warnings";
 
 	private static final String SCRIPT_ENGINE_NAME = "script engine";
 	private static final String SUPPRESSED_REPORTS = "suppressed reports";
@@ -98,7 +95,7 @@ public class ProtocolConfig {
 
 	/**
 	 * Load the last update time stamp from the file system.
-	 * 
+	 *
 	 * @return Last update time stamp.
 	 */
 	private long loadLastUpdate() {
@@ -106,7 +103,7 @@ public class ProtocolConfig {
 
 		if (dataFile.exists()) {
 			try {
-				return Long.parseLong(Files.toString(dataFile, Charsets.UTF_8));
+				return Long.parseLong(Files.toString(dataFile, StandardCharsets.UTF_8));
 			} catch (NumberFormatException e) {
 				plugin.getLogger().warning("Cannot parse " + dataFile + " as a number.");
 			} catch (IOException e) {
@@ -119,7 +116,7 @@ public class ProtocolConfig {
 
 	/**
 	 * Store the given time stamp.
-	 * 
+	 *
 	 * @param value - time stamp to store.
 	 */
 	private void saveLastUpdate(long value) {
@@ -128,11 +125,12 @@ public class ProtocolConfig {
 		// The data folder must exist
 		dataFile.getParentFile().mkdirs();
 
-		if (dataFile.exists())
+		if (dataFile.exists()) {
 			dataFile.delete();
+		}
 
 		try {
-			Files.write(Long.toString(value), dataFile, Charsets.UTF_8);
+			Files.write(Long.toString(value), dataFile, StandardCharsets.UTF_8);
 		} catch (IOException e) {
 			throw new RuntimeException("Cannot write " + dataFile, e);
 		}
@@ -140,7 +138,7 @@ public class ProtocolConfig {
 
 	/**
 	 * Retrieve the file that is used to store the update time stamp.
-	 * 
+	 *
 	 * @return File storing the update time stamp.
 	 */
 	private File getLastUpdateFile() {
@@ -149,7 +147,7 @@ public class ProtocolConfig {
 
 	/**
 	 * Load data sections.
-	 * 
+	 *
 	 * @param copyDefaults - whether or not to copy configuration defaults.
 	 */
 	private void loadSections(boolean copyDefaults) {
@@ -167,8 +165,9 @@ public class ProtocolConfig {
 		if (copyDefaults && (!getFile().exists() || global == null || updater == null)) {
 			loadingSections = true;
 
-			if (config != null)
+			if (config != null) {
 				config.options().copyDefaults(true);
+			}
 			plugin.saveDefaultConfig();
 			plugin.reloadConfig();
 			loadingSections = false;
@@ -180,7 +179,7 @@ public class ProtocolConfig {
 
 	/**
 	 * 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.
@@ -210,7 +209,7 @@ public class ProtocolConfig {
 
 	/**
 	 * Retrieve a reference to the configuration file.
-	 * 
+	 *
 	 * @return Configuration file on disk.
 	 */
 	public File getFile() {
@@ -219,7 +218,7 @@ public class ProtocolConfig {
 
 	/**
 	 * Determine if detailed error reporting is enabled. Default FALSE.
-	 * 
+	 *
 	 * @return TRUE if it is enabled, FALSE otherwise.
 	 */
 	public boolean isDetailedErrorReporting() {
@@ -227,57 +226,36 @@ public class ProtocolConfig {
 	}
 
 	/**
-	 * Set whether or not detailed error reporting is enabled.
-	 * 
-	 * @param value - TRUE if it is enabled, FALSE otherwise.
+	 * Print warnings to players with protocol.info
+	 * @return true if enabled, false if not
 	 */
-	public void setDetailedErrorReporting(boolean value) {
-		global.set(DETAILED_ERROR, value);
+	public boolean isChatWarnings() {
+		return getGlobalValue(CHAT_WARNINGS, true);
 	}
 
 	/**
 	 * 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() {
@@ -286,7 +264,7 @@ public class ProtocolConfig {
 
 	/**
 	 * Set whether or not debug mode is enabled.
-	 * 
+	 *
 	 * @param value - TRUE if it is enabled, FALSE otherwise.
 	 */
 	public void setDebug(boolean value) {
@@ -296,26 +274,33 @@ public class ProtocolConfig {
 
 	/**
 	 * 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>()));
-	}
+		Object value = getGlobalValue(SUPPRESSED_REPORTS, Collections.emptyList());
 
-	/**
-	 * 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++;
+		if (value instanceof Collection<?>) {
+			List<String> reports = new ArrayList<>();
+			for (Object entry : (Collection<?>) value) {
+				if (entry != null) {
+					reports.add(String.valueOf(entry));
+				}
+			}
+			return ImmutableList.copyOf(reports);
+		}
+
+		if (value instanceof String) {
+			String report = ((String) value).trim();
+			return report.isEmpty() ? ImmutableList.of() : ImmutableList.of(report);
+		}
+
+		return ImmutableList.of();
 	}
 
 	/**
 	 * Retrieve the amount of time to wait until checking for a new update.
-	 * 
+	 *
 	 * @return The amount of time to wait.
 	 */
 	public long getAutoDelay() {
@@ -323,87 +308,36 @@ public class ProtocolConfig {
 		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, "");
-	}
+		Object value = 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++;
+		if (value instanceof String) {
+			return (String) value;
+		}
+		if (value instanceof Boolean) {
+			return (Boolean) value ? "true" : "";
+		}
+
+		return value != null ? String.valueOf(value) : "";
 	}
 
 	/**
 	 * 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() {
@@ -414,7 +348,7 @@ public class ProtocolConfig {
 	 * 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) {
@@ -424,7 +358,7 @@ public class ProtocolConfig {
 
 	/**
 	 * Retrieve the unique name of the script engine to use for filtering.
-	 * 
+	 *
 	 * @return Script engine to use.
 	 */
 	public String getScriptEngineName() {
@@ -435,7 +369,7 @@ public class ProtocolConfig {
 	 * 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) {
@@ -443,45 +377,9 @@ public class ProtocolConfig {
 		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() {
@@ -492,10 +390,12 @@ public class ProtocolConfig {
 	 * Save the current configuration file.
 	 */
 	public void saveAll() {
-		if (valuesChanged)
+		if (valuesChanged) {
 			saveLastUpdate(lastUpdateTime);
-		if (configChanged)
+		}
+		if (configChanged) {
 			plugin.saveConfig();
+		}
 
 		// And we're done
 		valuesChanged = false;

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

@@ -1,49 +1,49 @@
 /**
- *  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
+ * ProtocolLib - Bukkit server library that allows access to the Minecraft protocol. Copyright (C) 2012 Kristian S.
+ * Stangeland
+ * <p>
+ * 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.
+ * <p>
+ * 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.
+ * <p>
+ * 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.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.InternalManager;
+import com.comphenix.protocol.injector.PacketFilterManager;
+import com.comphenix.protocol.metrics.Statistics;
+import com.comphenix.protocol.updater.Updater;
+import com.comphenix.protocol.updater.Updater.UpdateType;
+import com.comphenix.protocol.utility.ByteBuddyFactory;
+import com.comphenix.protocol.utility.ChatExtensions;
+import com.comphenix.protocol.utility.MinecraftVersion;
+import com.comphenix.protocol.utility.Util;
+import com.google.common.base.Splitter;
+import com.google.common.collect.Iterables;
 import java.io.File;
 import java.io.IOException;
+import java.util.HashSet;
 import java.util.Set;
+import java.util.concurrent.TimeUnit;
 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 com.comphenix.protocol.async.AsyncFilterManager;
-import com.comphenix.protocol.error.*;
-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.ByteBuddyFactory;
-import com.comphenix.protocol.utility.NettyVersion;
-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 org.bukkit.Server;
 import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.PluginCommand;
@@ -57,111 +57,88 @@ import org.bukkit.plugin.java.JavaPlugin;
  * @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_CANNOT_DELETE_CONFIG = new ReportType(
+			"Cannot delete old ProtocolLib configuration.");
 
 	public static final ReportType REPORT_PLUGIN_LOAD_ERROR = new ReportType("Cannot load ProtocolLib.");
+	public static final ReportType REPORT_CANNOT_LOAD_CONFIG = new ReportType("Cannot load configuration");
 	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_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_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_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;
+	static final long MILLI_PER_SECOND = TimeUnit.SECONDS.toMillis(1);
 
+	private static final int ASYNC_MANAGER_DELAY = 1;
 	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
+	// these fields are only existing once, we can make them static
+	private static Logger logger;
 	private static ProtocolConfig config;
 
-	// Metrics and statistics
+	private static InternalManager protocolManager;
+	private static ErrorReporter reporter = new BasicErrorReporter();
+
 	private Statistics statistics;
 
-	// 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
+	// updater
 	private Updater updater;
-	public static boolean UPDATES_DISABLED;
-
-	// Logger
-	private static Logger logger;
 	private Handler redirectHandler;
 
-	// Commands
+	// commands
 	private CommandProtocol commandProtocol;
 	private CommandPacket commandPacket;
 	private CommandFilter commandFilter;
 	private PacketLogging packetLogging;
 
-	// Whether or not disable is not needed
+	// Whether disabling field resetting is needed
 	private boolean skipDisable;
 
 	@Override
 	public void onLoad() {
 		// Logging
-		logger = getLogger();
+		logger = this.getLogger();
 		ProtocolLogger.init(this);
 
 		// Initialize enhancer factory
-		ByteBuddyFactory.getInstance().setClassLoader(getClassLoader());
+		ByteBuddyFactory.getInstance().setClassLoader(this.getClassLoader());
 
 		// Add global parameters
 		DetailedErrorReporter detailedReporter = new DetailedErrorReporter(this);
-		reporter = getFilteredReporter(detailedReporter);
+		reporter = this.getFilteredReporter(detailedReporter);
 
 		// Configuration
-		saveDefaultConfig();
-		reloadConfig();
+		this.saveDefaultConfig();
+		this.reloadConfig();
 
 		try {
 			config = new ProtocolConfig(this);
-		} catch (Exception e) {
-			reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_LOAD_CONFIG).error(e));
+		} catch (Exception exception) {
+			reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_LOAD_CONFIG).error(exception));
 
 			// Load it again
-			if (deleteConfig()) {
+			if (this.deleteConfig()) {
 				config = new ProtocolConfig(this);
 			} else {
 				reporter.reportWarning(this, Report.newBuilder(REPORT_CANNOT_DELETE_CONFIG));
@@ -171,11 +148,8 @@ public class ProtocolLib extends JavaPlugin {
 		// Print the state of the debug mode
 		if (config.isDebug()) {
 			logger.warning("Debug mode is enabled!");
-						logger.info("Detected netty version: " + NettyVersion.getVersion());
-		} else {
-			NettyVersion.getVersion(); // this will cache the version
 		}
-		
+
 		// And the state of the error reporter
 		if (config.isDetailedErrorReporting()) {
 			detailedReporter.setDetailedReporting(true);
@@ -184,52 +158,33 @@ public class ProtocolLib extends JavaPlugin {
 
 		try {
 			// Check for other versions
-			checkConflictingVersions();
+			this.checkConflictingVersions();
 
 			// Handle unexpected Minecraft versions
-			MinecraftVersion version = verifyMinecraftVersion();
+			MinecraftVersion version = this.verifyMinecraftVersion();
 
 			// Set updater - this will not perform any update automatically
-			updater = Updater.create(this, BUKKIT_DEV_ID, getFile(), UpdateType.NO_DOWNLOAD, true);
+			this.updater = Updater.create(this, 0, this.getFile(), UpdateType.NO_DOWNLOAD, true);
 
-			unhookTask = new DelayedSingleTask(this);
+			// api init
 			protocolManager = PacketFilterManager.newBuilder()
-					.classLoader(getClassLoader())
-					.server(getServer())
+					.server(this.getServer())
 					.library(this)
 					.minecraftVersion(version)
-					.unhookTask(unhookTask)
 					.reporter(reporter)
 					.build();
-
-			// Initialize the API
 			ProtocolLibrary.init(this, config, protocolManager, reporter);
 
 			// 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);
+			this.initializeCommands();
+			this.setupBroadcastUsers(PERMISSION_INFO);
 
-		} catch (OutOfMemoryError e) {
-			throw e;
-		} catch (Throwable e) {
+		} catch (Exception e) {
 			reporter.reportDetailed(this, Report.newBuilder(REPORT_PLUGIN_LOAD_ERROR).error(e).callerParam(protocolManager));
-			disablePlugin();
+			this.disablePlugin();
 		}
 	}
 
@@ -241,18 +196,18 @@ public class ProtocolLib extends JavaPlugin {
 		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;
+					case PROTOCOL:
+						this.commandProtocol = new CommandProtocol(reporter, this, this.updater, config);
+						break;
+					case FILTER:
+						this.commandFilter = new CommandFilter(reporter, this, config);
+						break;
+					case PACKET:
+						this.commandPacket = new CommandPacket(reporter, this, logger, this.commandFilter, protocolManager);
+						break;
+					case LOGGING:
+						this.packetLogging = new PacketLogging(this, protocolManager);
+						break;
 				}
 			} catch (OutOfMemoryError e) {
 				throw e;
@@ -267,12 +222,13 @@ public class ProtocolLib extends JavaPlugin {
 
 	/**
 	 * 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();
+			private Set<String> reports = new HashSet<>();
 
 			@Override
 			protected Report filterReport(Object sender, Report report, boolean detailed) {
@@ -280,19 +236,20 @@ public class ProtocolLib extends JavaPlugin {
 					String canonicalName = ReportType.getReportName(sender, report.getType());
 					String reportName = Iterables.getLast(Splitter.on("#").split(canonicalName)).toUpperCase();
 
-					if (config != null && config.getModificationCount() != lastModCount) {
+					if (config != null && config.getModificationCount() != this.lastModCount) {
 						// Update our cached set again
-						reports = Sets.newHashSet(config.getSuppressedReports());
-						lastModCount = config.getModificationCount();
+						this.reports = new HashSet<>(config.getSuppressedReports());
+						this.lastModCount = config.getModificationCount();
 					}
 
 					// Cancel reports either on the full canonical name, or just the report name
-					if (reports.contains(canonicalName) || reports.contains(reportName))
+					if (this.reports.contains(canonicalName) || this.reports.contains(reportName)) {
 						return null;
+					}
 
 				} catch (Exception e) {
 					// Only report this with a minor message
-					logger.warning("Error filtering reports: " + e.toString());
+					logger.warning("Error filtering reports: " + e);
 				}
 				// Don't filter anything
 				return report;
@@ -316,16 +273,17 @@ public class ProtocolLib extends JavaPlugin {
 
 	private void setupBroadcastUsers(final String permission) {
 		// Guard against multiple calls
-		if (redirectHandler != null)
+		if (this.redirectHandler != null) {
 			return;
+		}
 
 		// Broadcast information to every user too
-		redirectHandler = new Handler() {
+		this.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);
+					ProtocolLib.this.commandPacket.broadcastMessageSilently(record.getMessage(), permission);
 				}
 			}
 
@@ -340,23 +298,19 @@ public class ProtocolLib extends JavaPlugin {
 			}
 		};
 
-		logger.addHandler(redirectHandler);
+		logger.addHandler(this.redirectHandler);
 	}
 
 	@Override
 	public void onEnable() {
 		try {
-			Server server = getServer();
+			Server server = this.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[] {
+				String[] message = new String[]{
 						" ProtocolLib does not support plugin reloaders! ", " Please use the built-in reload command! "
 				};
 
@@ -365,59 +319,48 @@ public class ProtocolLib extends JavaPlugin {
 					directLogging.severe(line);
 				}
 
-				disablePlugin();
+				this.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.");
-			}
+			this.checkForIncompatibility(manager);
 
 			// Set up command handlers
-			registerCommand(CommandProtocol.NAME, commandProtocol);
-			registerCommand(CommandPacket.NAME, commandPacket);
-			registerCommand(CommandFilter.NAME, commandFilter);
-			registerCommand(PacketLogging.NAME, packetLogging);
+			this.registerCommand(CommandProtocol.NAME, this.commandProtocol);
+			this.registerCommand(CommandPacket.NAME, this.commandPacket);
+			this.registerCommand(CommandFilter.NAME, this.commandFilter);
+			this.registerCommand(PacketLogging.NAME, this.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);
+			this.createPacketTask(server);
 		} catch (OutOfMemoryError e) {
 			throw e;
 		} catch (Throwable e) {
 			reporter.reportDetailed(this, Report.newBuilder(REPORT_PLUGIN_ENABLE_ERROR).error(e));
-			disablePlugin();
+			this.disablePlugin();
 			return;
 		}
 
 		// Try to enable statistics
 		try {
 			if (config.isMetricsEnabled()) {
-				statistics = new Statistics(this);
+				this.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));
+			reporter.reportDetailed(this, Report.newBuilder(REPORT_METRICS_IO_ERROR).error(e).callerParam(this.statistics));
 		} catch (Throwable e) {
-			reporter.reportDetailed(this, Report.newBuilder(REPORT_METRICS_GENERIC_ERROR).error(e).callerParam(statistics));
+			reporter.reportDetailed(this, Report.newBuilder(REPORT_METRICS_GENERIC_ERROR).error(e).callerParam(
+					this.statistics));
 		}
 	}
 
-	// Plugin authors: Notify me to remove these
-
 	private void checkForIncompatibility(PluginManager manager) {
 		for (String plugin : ProtocolLibrary.INCOMPATIBLE) {
 			if (manager.getPlugin(plugin) != null) {
@@ -434,26 +377,31 @@ public class ProtocolLib extends JavaPlugin {
 		}
 	}
 
+	// Plugin authors: Notify me to remove these
+
 	// 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());
+			MinecraftVersion current = new MinecraftVersion(this.getServer());
 
 			// Skip certain versions
 			if (!config.getIgnoreVersionCheck().equals(current.getVersion())) {
 				// We'll just warn the user for now
-				if (current.compareTo(minimum) < 0)
+				if (current.compareTo(minimum) < 0) {
 					logger.warning("Version " + current + " is lower than the minimum " + minimum);
-				if (current.compareTo(maximum) > 0)
+				}
+				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));
+			reporter.reportWarning(this,
+					Report.newBuilder(REPORT_CANNOT_PARSE_MINECRAFT_VERSION).error(e).messageParam(maximum));
 
 			// Unknown version - just assume it is the latest
 			return maximum;
@@ -462,16 +410,16 @@ public class ProtocolLib extends JavaPlugin {
 
 	private void checkConflictingVersions() {
 		Pattern ourPlugin = Pattern.compile("ProtocolLib-(.*)\\.jar");
-		MinecraftVersion currentVersion = new MinecraftVersion(getDescription().getVersion());
+		MinecraftVersion currentVersion = new MinecraftVersion(this.getDescription().getVersion());
 		MinecraftVersion newestVersion = null;
 
 		// Skip the file that contains this current instance however
-		File loadedFile = getFile();
+		File loadedFile = this.getFile();
 
 		try {
 			// Scan the plugin folder for newer versions of ProtocolLib
 			// The plugin folder isn't always plugins/
-			File pluginFolder = getDataFolder().getParentFile();
+			File pluginFolder = this.getDataFolder().getParentFile();
 
 			File[] candidates = pluginFolder.listFiles();
 			if (candidates != null) {
@@ -499,7 +447,7 @@ public class ProtocolLib extends JavaPlugin {
 		// 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;
+			this.skipDisable = true;
 
 			throw new IllegalStateException(String.format(
 					"Detected a newer version of ProtocolLib (%s) in plugin folder than the current (%s). Disabling.",
@@ -510,10 +458,11 @@ public class ProtocolLib extends JavaPlugin {
 	private void registerCommand(String name, CommandExecutor executor) {
 		try {
 			// Ignore these - they must have printed an error already
-			if (executor == null)
+			if (executor == null) {
 				return;
+			}
 
-			PluginCommand command = getCommand(name);
+			PluginCommand command = this.getCommand(name);
 
 			// Try to load the command
 			if (command != null) {
@@ -522,7 +471,8 @@ public class ProtocolLib extends JavaPlugin {
 				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));
+			reporter.reportWarning(this,
+					Report.newBuilder(REPORT_CANNOT_REGISTER_COMMAND).messageParam(name, e.getMessage()).error(e));
 		}
 	}
 
@@ -530,44 +480,42 @@ public class ProtocolLib extends JavaPlugin {
 	 * Disable the current plugin.
 	 */
 	private void disablePlugin() {
-		getServer().getPluginManager().disablePlugin(this);
+		this.getServer().getPluginManager().disablePlugin(this);
 	}
 
 	private void createPacketTask(Server server) {
 		try {
-			if (packetTask >= 0)
+			if (this.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();
+			this.packetTask = server.getScheduler().scheduleSyncRepeatingTask(this, () -> {
+				AsyncFilterManager manager = (AsyncFilterManager) protocolManager.getAsynchronousManager();
 
-					// We KNOW we're on the main thread at the moment
-					manager.sendProcessedPackets(tickCounter++, true);
+				// We KNOW we're on the main thread at the moment
+				manager.sendProcessedPackets(ProtocolLib.this.tickCounter++, true);
 
-					// House keeping
-					updateConfiguration();
+				// House keeping
+				ProtocolLib.this.updateConfiguration();
 
-					// Check for updates too
-					if (!UPDATES_DISABLED && (tickCounter % 20) == 0) {
-						checkUpdates();
-					}
+				// Check for updates too
+				if (!ProtocolLibrary.updatesDisabled() && (ProtocolLib.this.tickCounter % 20) == 0) {
+					ProtocolLib.this.checkUpdates();
 				}
 			}, ASYNC_MANAGER_DELAY, ASYNC_MANAGER_DELAY);
 		} catch (OutOfMemoryError e) {
 			throw e;
 		} catch (Throwable e) {
-			if (packetTask == -1) {
+			if (this.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();
+		if (config != null && config.getModificationCount() != this.configExpectedMod) {
+			this.configExpectedMod = config.getModificationCount();
 
 			// Update the debug flag
 			protocolManager.setDebug(config.isDebug());
@@ -577,58 +525,64 @@ public class ProtocolLib extends JavaPlugin {
 	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()) {
+			if (currentTime > updateTime && !this.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();
+				if (config.isAutoDownload()) {
+					this.commandProtocol.updateVersion(this.getServer().getConsoleSender(), false);
+				} else if (config.isAutoNotify()) {
+					this.commandProtocol.checkVersion(this.getServer().getConsoleSender(), false);
+				} else {
+					this.commandProtocol.updateFinished();
+				}
 			}
 		} catch (Exception e) {
 			reporter.reportDetailed(this, Report.newBuilder(REPORT_CANNOT_UPDATE_PLUGIN).error(e));
-			UPDATES_DISABLED = true;
+			ProtocolLibrary.disableUpdates();
 		}
 	}
 
 	@Override
 	public void onDisable() {
-		if (skipDisable) {
+		if (this.skipDisable) {
 			return;
 		}
 
-		// Disable compiler
-		if (backgroundCompiler != null) {
-			backgroundCompiler.shutdownAll();
-			backgroundCompiler = null;
-			BackgroundCompiler.setInstance(null);
+		// that reloading the server might break ProtocolLib / plugins depending on it
+		if (Util.isCurrentlyReloading()) {
+			logger.severe("╔══════════════════════════════════════════════════════════════════╗");
+			logger.severe("║                               WARNING                            ║");
+			logger.severe("║     RELOADING THE SERVER WHILE PROTOCOL LIB IS ENABLED MIGHT     ║");
+			logger.severe("║                    LEAD TO UNEXPECTED ERRORS!                    ║");
+			logger.severe("║                                                                  ║");
+			logger.severe("║     Consider to cleanly restart your server if you encounter     ║");
+			logger.severe("║    any issues related to Protocol Lib before opening an issue    ║");
+			logger.severe("║                            on GitHub!                            ║");
+			logger.severe("╚══════════════════════════════════════════════════════════════════╝");
 		}
 
 		// Clean up
-		if (packetTask >= 0) {
-			getServer().getScheduler().cancelTask(packetTask);
-			packetTask = -1;
+		if (this.packetTask >= 0) {
+			this.getServer().getScheduler().cancelTask(this.packetTask);
+			this.packetTask = -1;
 		}
 
 		// And redirect handler too
-		if (redirectHandler != null) {
-			logger.removeHandler(redirectHandler);
+		if (this.redirectHandler != null) {
+			logger.removeHandler(this.redirectHandler);
 		}
-		if (protocolManager != null)
+		if (protocolManager != null) {
 			protocolManager.close();
-		else
+		} else {
 			return; // Plugin reloaders!
+		}
 
-		if (unhookTask != null)
-			unhookTask.close();
 		protocolManager = null;
-		statistics = null;
+		this.statistics = null;
 
 		// To clean up global parameters
 		reporter = new BasicErrorReporter();
@@ -637,15 +591,24 @@ public class ProtocolLib extends JavaPlugin {
 	/**
 	 * 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.
+	 * 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;
+		return this.statistics;
 	}
 
 	public ProtocolConfig getProtocolConfig() {
 		return config;
 	}
+
+	// Different commands
+	private enum ProtocolCommand {
+		FILTER,
+		PACKET,
+		PROTOCOL,
+		LOGGING
+	}
 }

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

@@ -1,27 +1,24 @@
 /**
- *  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
+ * ProtocolLib - Bukkit server library that allows access to the Minecraft protocol. Copyright (C) 2016 dmulloy2
+ * <p>
+ * 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.
+ * <p>
+ * 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.
+ * <p>
+ * 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 com.comphenix.protocol.error.BasicErrorReporter;
 import com.comphenix.protocol.error.ErrorReporter;
-
+import com.comphenix.protocol.utility.MinecraftVersion;
+import java.util.List;
+import com.google.common.collect.ImmutableList;
 import org.apache.commons.lang.Validate;
 import org.bukkit.plugin.Plugin;
 
@@ -30,6 +27,7 @@ import org.bukkit.plugin.Plugin;
  * @author dmulloy2
  */
 public class ProtocolLibrary {
+
 	/**
 	 * The minimum version ProtocolLib has been tested with.
 	 */
@@ -38,17 +36,17 @@ public class ProtocolLibrary {
 	/**
 	 * The maximum version ProtocolLib has been tested with.
 	 */
-	public static final String MAXIMUM_MINECRAFT_VERSION = "1.16.5";
+	public static final String MAXIMUM_MINECRAFT_VERSION = MinecraftVersion.LATEST.getVersion();
 
 	/**
-	 * The date (with ISO 8601 or YYYY-MM-DD) when the most recent version (1.16.5) was released.
+	 * The date (with ISO 8601 or YYYY-MM-DD) when the most recent version (1.19.2) was released.
 	 */
-	public static final String MINECRAFT_LAST_RELEASE_DATE = "2021-01-15";
+	public static final String MINECRAFT_LAST_RELEASE_DATE = "2022-08-05";
 
 	/**
 	 * Plugins that are currently incompatible with ProtocolLib.
 	 */
-	public static final List<String> INCOMPATIBLE = Arrays.asList("TagAPI");
+	public static final List<String> INCOMPATIBLE = ImmutableList.of("TagAPI");
 
 	private static Plugin plugin;
 	private static ProtocolConfig config;
@@ -107,7 +105,7 @@ public class ProtocolLibrary {
 	}
 
 	/**
-	 * Whether or not updates are currently disabled.
+	 * Whether updates are currently disabled.
 	 * @return True if it is, false if not
 	 */
 	public static boolean updatesDisabled() {

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

@@ -20,7 +20,7 @@ import java.text.MessageFormat;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import org.bukkit.plugin.Plugin;
+import com.comphenix.protocol.utility.MinecraftVersion;
 
 /**
  * @author dmulloy2
@@ -82,4 +82,10 @@ public class ProtocolLogger {
 			logger.log(Level.WARNING, "[Debug] " + message, ex);
 		}
 	}
+
+	public static void warnAbove(MinecraftVersion version, String message, Object... args) {
+		if (version.atOrAbove()) {
+			log(Level.WARNING, message, args);
+		}
+	}
 }

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

@@ -17,16 +17,6 @@
 
 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;
@@ -36,81 +26,94 @@ import com.comphenix.protocol.injector.PacketConstructor;
 import com.comphenix.protocol.reflect.FieldAccessException;
 import com.comphenix.protocol.utility.MinecraftVersion;
 import com.google.common.collect.ImmutableSet;
+import java.util.Collection;
+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;
 
 /**
  * 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.
+	 * 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.
 	 */
 	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.
-	 * 
+	 * 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.
+	 * @param packet   - packet to send.
+	 * @param filters  - whether or not to invoke any packet filters below {@link ListenerPriority#MONITOR}.
 	 */
 	@Override
-	void sendServerPacket(Player receiver, PacketContainer packet, boolean filters)
-			throws InvocationTargetException;
-	
+	void sendServerPacket(Player receiver, PacketContainer packet, boolean filters);
+
 	/**
 	 * 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.
+	 * 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
-	void recieveClientPacket(Player sender, PacketContainer packet, boolean filters)
-			throws IllegalAccessException, InvocationTargetException;
-	
+	void receiveClientPacket(Player sender, PacketContainer packet, boolean filters);
+
 	/**
 	 * 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.
 	 */
 	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.
+	 * 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.
 	 */
 	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 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.
 	 */
 	void broadcastServerPacket(PacketContainer packet, Location origin, int maxObserverDistance);
-	
+
+	void broadcastServerPacket(PacketContainer packet, Collection<? extends Player> targetPlayers);
+
 	/**
 	 * Retrieves a list of every registered packet listener.
+	 *
 	 * @return Every registered packet listener.
 	 */
 	ImmutableSet<PacketListener> getPacketListeners();
@@ -118,9 +121,9 @@ public interface ProtocolManager extends PacketStream {
 	/**
 	 * 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.
+	 * 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.
 	 */
 	void addPacketListener(PacketListener listener);
@@ -129,98 +132,109 @@ public interface ProtocolManager extends PacketStream {
 	 * 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.
 	 */
 	void removePacketListener(PacketListener listener);
 
 	/**
 	 * Removes every listener associated with the given plugin.
+	 *
 	 * @param plugin - the plugin to unload.
 	 */
 	void removePacketListeners(Plugin plugin);
 
 	/**
 	 * Constructs a new encapsulated Minecraft packet with the given ID.
-	 * @param  type - packet  type.
+	 *
+	 * @param type - packet  type.
 	 * @return New encapsulated Minecraft packet.
 	 */
 	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.
-	 * 
-	 * @param type - packet type.
+	 * 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.
 	 */
 	PacketContainer createPacket(PacketType type, boolean forceDefaults);
-	
+
 	/**
 	 * Construct a packet using the special builtin Minecraft constructors.
-	 * @param type - the packet type.
+	 *
+	 * @param type      - the packet type.
 	 * @param arguments - arguments that will be passed to the constructor.
 	 * @return The packet constructor.
 	 */
 	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.
+	 * 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.
 	 */
-	void updateEntity(Entity entity, List<Player> observers) throws FieldAccessException;
-	
+	void updateEntity(Entity entity, List<Player> observers);
+
 	/**
 	 * Retrieve the associated entity.
+	 *
 	 * @param container - the world the entity belongs to.
-	 * @param id - the unique ID of the entity.
+	 * @param id        - the unique ID of the entity.
 	 * @return The associated entity.
 	 * @throws FieldAccessException Reflection failed.
 	 */
-	Entity getEntityFromID(World container, int id) throws FieldAccessException;
-	
+	Entity getEntityFromID(World container, int id);
+
 	/**
 	 * 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.
 	 */
-	List<Player> getEntityTrackers(Entity entity) throws FieldAccessException;
+	List<Player> getEntityTrackers(Entity entity);
 
 	/**
 	 * Retrieves a immutable set containing the type of the sent server packets that will be observed by listeners.
+	 *
 	 * @return Every filtered server packet.
 	 */
 	Set<PacketType> getSendingFilterTypes();
 
 	/**
 	 * Retrieves a immutable set containing the type of the received client packets that will be observed by listeners.
+	 *
 	 * @return Every filtered client packet.
 	 */
 	Set<PacketType> getReceivingFilterTypes();
-	
+
 	/**
 	 * Retrieve the current Minecraft version.
+	 *
 	 * @return The current version.
 	 */
 	MinecraftVersion getMinecraftVersion();
-	
+
 	/**
 	 * Determines whether or not this protocol manager has been disabled.
+	 *
 	 * @return TRUE if it has, FALSE otherwise.
 	 */
 	boolean isClosed();
 
 	/**
 	 * Retrieve the current asynchronous packet manager.
+	 *
 	 * @return Asynchronous packet manager.
 	 */
 	AsynchronousManager getAsynchronousManager();

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

@@ -17,22 +17,24 @@
 
 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;
 
+import java.util.ArrayDeque;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Deque;
+import java.util.List;
+
 /**
  * Used to parse ranges in CommandPacket.
  * 
  * @author Kristian
  */
-class RangeParser {
+final class RangeParser {
+	private RangeParser() {}
+
 	/**
 	 * Parse a range from a given text.
 	 * @param text - the text.
@@ -40,20 +42,18 @@ class RangeParser {
 	 * @return The parsed ranges.
 	 */
 	public static List<Range<Integer>> getRanges(String text, Range<Integer> legalRange) {
-		return getRanges(new ArrayDeque<String>(Arrays.asList(text)), legalRange);
+		return getRanges(new ArrayDeque<>(Collections.singletonList(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 input the input to parse the ranges from
 	 * @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>>();
+		List<Range<Integer>> ranges = new ArrayList<>();
 		
 		for (int i = 0; i < tokens.size(); i++) {
 			Range<Integer> range;
@@ -96,7 +96,7 @@ class RangeParser {
 	 * @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>>();
+		List<Range<Integer>> result = new ArrayList<>();
 		boolean[] set = new boolean[maximum + 1];
 		int start = -1;
 		
@@ -125,7 +125,7 @@ class RangeParser {
 	}
 	
 	private static List<String> tokenizeInput(Deque<String> input) {
-		List<String> tokens = new ArrayList<String>();
+		List<String> tokens = new ArrayList<>();
 		
 		// Tokenize the input
 		while (!input.isEmpty()) {

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

@@ -36,7 +36,6 @@ import com.comphenix.protocol.injector.SortedPacketListenerList;
 import com.google.common.base.Objects;
 import com.google.common.collect.ImmutableSet;
 import com.google.common.collect.Iterables;
-import com.google.common.collect.Sets;
 
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.Plugin;
@@ -87,7 +86,7 @@ public class AsyncFilterManager implements AsynchronousManager {
 		// Initialize timeout listeners
 		this.serverTimeoutListeners = new SortedPacketListenerList();
 		this.clientTimeoutListeners = new SortedPacketListenerList();
-		this.timeoutListeners = Sets.newSetFromMap(new ConcurrentHashMap<>());
+		this.timeoutListeners = ConcurrentHashMap.newKeySet();
 
 		this.playerSendingHandler = new PlayerSendingHandler(reporter, serverTimeoutListeners, clientTimeoutListeners);
 		this.serverProcessingQueue = new PacketProcessingQueue(playerSendingHandler);

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

@@ -121,16 +121,10 @@ public class AsyncListenerHandler {
 	}
 	
 	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);
+		warningTask = filterManager.getScheduler().scheduleSyncDelayedTask(getPlugin(), () -> ProtocolLibrary.getErrorReporter().reportWarning(AsyncListenerHandler.this, Report.
+																 newBuilder(REPORT_HANDLER_NOT_STARTED).
+																 messageParam(listener.getPlugin(), AsyncListenerHandler.this).
+																 build()), 2 * TICKS_PER_SECOND);
 	}
 	
 	private void stopWarningTask() {
@@ -287,19 +281,16 @@ public class AsyncListenerHandler {
 		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());
+		scheduleAsync(() -> {
+			Thread thread = Thread.currentThread();
 
-				// Add the friendly worker name
-				thread.setName(workerName);
-				listenerLoop.run();
-				thread.setName(previousName);
-			}
+			String previousName = thread.getName();
+			String workerName = getFriendlyWorkerName(listenerLoop.getID());
+
+			// Add the friendly worker name
+			thread.setName(workerName);
+			listenerLoop.run();
+			thread.setName(previousName);
 		});
 	}
 	
@@ -335,12 +326,7 @@ public class AsyncListenerHandler {
 		final AsyncRunnable listenerLoop = getListenerLoop();
 		final Function<AsyncRunnable, Void> delegateCopy = executor;
 		
-		scheduleAsync(new Runnable() {
-			@Override
-			public void run() {
-				delegateCopy.apply(listenerLoop);
-			}
-		});
+		scheduleAsync(() -> delegateCopy.apply(listenerLoop));
 	}
 	
 	private void scheduleAsync(Runnable runnable) {
@@ -423,31 +409,28 @@ public class AsyncListenerHandler {
 		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;
+			syncTask = filterManager.getScheduler().scheduleSyncRepeatingTask(getPlugin(), () -> {
+				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);
 			

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

@@ -42,11 +42,11 @@ 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.
 	 */
@@ -56,52 +56,52 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	 * 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;
@@ -113,18 +113,18 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	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.
@@ -140,7 +140,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	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.
@@ -219,13 +219,13 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	 * <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.
@@ -233,7 +233,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	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.
@@ -241,7 +241,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	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.
@@ -296,7 +296,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	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.
@@ -305,7 +305,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	public boolean hasExpired(long currentTime) {
 		return timeout < currentTime;
 	}
-	
+
 	/**
 	 * Determine if the asynchronous handling should be cancelled.
 	 * @return TRUE if it should, FALSE otherwise.
@@ -319,7 +319,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	 * <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) {
@@ -369,7 +369,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	Iterator<PrioritizedListener<AsyncListenerHandler>> getListenerTraversal() {
 		return listenerTraversal;
 	}
-	
+
 	/**
 	 * Set the iterator for the next listener.
 	 * @param listenerTraversal - the new async packet listener iterator.
@@ -377,28 +377,22 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 	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);
+		if (event.isServerPacket()) {
+			packetStream.sendServerPacket(event.getPlayer(), event.getPacket(), NetworkMarker.getNetworkMarker(event), false);
+		} else {
+			packetStream.receiveClientPacket(event.getPlayer(), event.getPacket(), NetworkMarker.getNetworkMarker(event),
+					false);
 		}
+		transmitted = true;
 	}
-	
+
 	/**
 	 * Determine if Minecraft allows asynchronous processing of this packet.
 	 * @param event - packet event
@@ -413,14 +407,14 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 				// 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)) {
+				} else if (MinecraftVersion.BOUNTIFUL_UPDATE.atOrAbove()) {
 					// The centralized async marker was removed in 1.8
 					// Incoming chat packets can be async
 					if (event.getPacketType() == PacketType.Play.Client.CHAT) {
@@ -460,7 +454,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 			}
 		}
 	}
-	
+
 	@Override
 	public int compareTo(AsyncMarker o) {
 		if (o == null)
@@ -468,7 +462,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 		else
 			return Longs.compare(getNewSendingIndex(), o.getNewSendingIndex());
 	}
-	
+
 	@Override
 	public boolean equals(Object other) {
 		// Standard equals
@@ -479,7 +473,7 @@ public class AsyncMarker implements Serializable, Comparable<AsyncMarker> {
 		else
 			return false;
 	}
-	
+
 	@Override
 	public int hashCode() {
 		return Longs.hashCode(getNewSendingIndex());

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

@@ -17,13 +17,9 @@
 
 package com.comphenix.protocol.async;
 
-import org.bukkit.plugin.Plugin;
+import com.comphenix.protocol.events.*;
 
-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;
+import org.bukkit.plugin.Plugin;
 
 /**
  * Represents a NO OPERATION listener.

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

@@ -2,16 +2,16 @@
  *  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 
+ *  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. 
+ *  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 
+ *  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
  */
 
@@ -24,81 +24,79 @@ 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;
 
+import org.bukkit.entity.Player;
+
 /**
  * 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;
+	private final PriorityBlockingQueue<PacketEventHolder> sendingQueue;
+	// Asynchronous packet sending
+	private final Executor asynchronousSender;
 	// 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.sendingQueue = new PriorityBlockingQueue<>(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. 
+	 * 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.
+	 * @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);
@@ -107,83 +105,85 @@ abstract class PacketSendingQueue {
 	/***
 	 * 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.
+	 * @param onMainThread - whether or not this is occurring on the main thread.
 	 */
 	public synchronized void signalPacketUpdate(List<PacketType> packetsRemoved, boolean onMainThread) {
-		Set<PacketType> lookup = new HashSet<PacketType>(packetsRemoved);
-		
+		Set<PacketType> lookup = new HashSet<>(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.
+	 * @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
@@ -191,65 +191,61 @@ abstract class PacketSendingQueue {
 					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);
-								}
-							});
-							
+							// We know this isn't on the main thread
+							asynchronousSender.execute(() -> 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 {
@@ -257,9 +253,10 @@ abstract class PacketSendingQueue {
 			}
 		}
 	}
-	
+
 	/**
 	 * Whether or not the packet transmission must synchronize with the main thread.
+	 *
 	 * @return TRUE if it must, FALSE otherwise.
 	 */
 	public boolean isSynchronizeMain() {
@@ -268,24 +265,16 @@ abstract class PacketSendingQueue {
 
 	/**
 	 * 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
+			AsyncMarker marker = event.getAsyncMarker();
 			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();
@@ -299,7 +288,7 @@ abstract class PacketSendingQueue {
 		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

@@ -24,8 +24,6 @@ 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;
@@ -33,18 +31,20 @@ import com.comphenix.protocol.events.PacketEvent;
 import com.comphenix.protocol.injector.SortedPacketListenerList;
 import com.google.common.util.concurrent.ThreadFactoryBuilder;
 
+import org.bukkit.entity.Player;
+
 /**
  * Contains every sending queue for every player.
  * 
  * @author Kristian
  */
 class PlayerSendingHandler {
-	private ErrorReporter reporter;
-	private ConcurrentMap<Player, QueueContainer> playerSendingQueues;
+	private final ErrorReporter reporter;
+	private final ConcurrentMap<Player, QueueContainer> playerSendingQueues;
 	
 	// Timeout listeners
-	private SortedPacketListenerList serverTimeoutListeners;
-	private SortedPacketListenerList clientTimeoutListeners;
+	private final SortedPacketListenerList serverTimeoutListeners;
+	private final SortedPacketListenerList clientTimeoutListeners;
 	
 	// Asynchronous packet sending
 	private Executor asynchronousSender;
@@ -58,8 +58,8 @@ class PlayerSendingHandler {
 	 * @author Kristian
 	 */
 	private class QueueContainer {
-		private PacketSendingQueue serverQueue;
-		private PacketSendingQueue clientQueue;
+		private final PacketSendingQueue serverQueue;
+		private final PacketSendingQueue clientQueue;
 		
 		public QueueContainer() {
 			// Server packets can be sent concurrently
@@ -174,7 +174,7 @@ class PlayerSendingHandler {
 	/**
 	 * 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. 
+	 * @param synchronusOK - whether we're running on the main thread.
 	 */
 	public void sendServerPackets(List<PacketType> types, boolean synchronusOK) {
 		if (!cleaningUp) {
@@ -186,8 +186,7 @@ class PlayerSendingHandler {
 	
 	/**
 	 * 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. 
+	 * @param synchronusOK - whether we're running on the main thread.
 	 */
 	public void sendClientPackets(List<PacketType> types, boolean synchronusOK) {
 		if (!cleaningUp) {
@@ -199,7 +198,7 @@ class PlayerSendingHandler {
 	
 	/**
 	 * Send any outstanding server packets.
-	 * @param onMainThread - whether or not this is occuring on the main thread.
+	 * @param onMainThread - whether this is occurring on the main thread.
 	 */
 	public void trySendServerPackets(boolean onMainThread) {
 		for (QueueContainer queue : playerSendingQueues.values()) {
@@ -209,7 +208,7 @@ class PlayerSendingHandler {
 	
 	/**
 	 * Send any outstanding server packets.
-	 * @param onMainThread - whether or not this is occuring on the main thread.
+	 * @param onMainThread - whether this is occurring on the main thread.
 	 */
 	public void trySendClientPackets(boolean onMainThread) {
 		for (QueueContainer queue : playerSendingQueues.values()) {
@@ -222,7 +221,7 @@ class PlayerSendingHandler {
 	 * @return Every sever packet queue.
 	 */
 	public List<PacketSendingQueue> getServerQueues() {
-		List<PacketSendingQueue> result = new ArrayList<PacketSendingQueue>();
+		List<PacketSendingQueue> result = new ArrayList<>();
 		
 		for (QueueContainer queue : playerSendingQueues.values())
 			result.add(queue.getServerQueue());
@@ -234,7 +233,7 @@ class PlayerSendingHandler {
 	 * @return Every client packet queue.
 	 */
 	public List<PacketSendingQueue> getClientQueues() {
-		List<PacketSendingQueue> result = new ArrayList<PacketSendingQueue>();
+		List<PacketSendingQueue> result = new ArrayList<>();
 		
 		for (QueueContainer queue : playerSendingQueues.values())
 			result.add(queue.getClientQueue());

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

@@ -17,13 +17,12 @@
 
 package com.comphenix.protocol.async;
 
+import javax.annotation.Nullable;
 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;
 
 /**

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

@@ -8,7 +8,6 @@ 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;
@@ -49,19 +48,14 @@ public class ExpireHashMap<K, V> {
 		}
 	}
 	
-	private Map<K, ExpireEntry> keyLookup = new HashMap<K, ExpireEntry>();
-	private PriorityQueue<ExpireEntry> expireQueue =  new PriorityQueue<ExpireEntry>();
+	private final Map<K, ExpireEntry> keyLookup = new HashMap<>();
+	private final PriorityQueue<ExpireEntry> expireQueue =  new PriorityQueue<>();
 	
 	// 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;
-		}
-	});
+	private final Map<K, V> valueView = Maps.transformValues(keyLookup, entry -> entry.expireValue);
 	
 	// Supplied by the constructor
-	private Ticker ticker;
+	private final Ticker ticker;
 	
 	/**
 	 * Construct a new hash map where each entry may expire at a given time.

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

@@ -1,10 +1,10 @@
 package com.comphenix.protocol.collections;
 
 import java.util.Arrays;
+import java.util.HashMap;
 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.
@@ -16,15 +16,6 @@ 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.
 	 */
@@ -128,7 +119,7 @@ public class IntegerMap<T> {
 	 * @return The Integer map.
 	 */
 	public Map<Integer, Object> toMap() {
-		Map<Integer, Object> map = Maps.newHashMap();
+		final Map<Integer, Object> map = new HashMap<>();
 		
 		for (int i = 0; i < array.length; i++) {
 			if (array[i] != null) {

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

@@ -2,21 +2,25 @@
  *  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 
+ *  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. 
+ *  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 
+ *  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 com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.events.ListeningWhitelist;
+import com.comphenix.protocol.injector.PrioritizedListener;
+import com.google.common.collect.Iterables;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;
@@ -24,81 +28,78 @@ 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> {
+public abstract class AbstractConcurrentListenerMultimap<T> {
+
 	// The core of our map
-	private ConcurrentMap<PacketType, SortedCopyOnWriteArray<PrioritizedListener<TListener>>> mapListeners;
-	
+	private final ConcurrentMap<PacketType, SortedCopyOnWriteArray<PrioritizedListener<T>>> mapListeners;
+
 	public AbstractConcurrentListenerMultimap() {
-		mapListeners =   new ConcurrentHashMap<PacketType, SortedCopyOnWriteArray<PrioritizedListener<TListener>>>();
+		this.mapListeners = new ConcurrentHashMap<>();
 	}
-	
+
 	/**
 	 * Adds a listener to its requested list of packet receivers.
-	 * @param listener - listener with a list of packets to receive notifications for.
+	 *
+	 * @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());
-		
+	public void addListener(T listener, ListeningWhitelist whitelist) {
+		PrioritizedListener<T> prioritized = new PrioritizedListener<>(listener, whitelist.getPriority());
 		for (PacketType type : whitelist.getTypes()) {
-			addListener(type, prioritized);
+			this.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);
-		
+	private void addListener(PacketType type, PrioritizedListener<T> listener) {
+		SortedCopyOnWriteArray<PrioritizedListener<T>> list = this.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>>();
+			final SortedCopyOnWriteArray<PrioritizedListener<T>> value = new SortedCopyOnWriteArray<PrioritizedListener<T>>();
 
 			// We may end up creating multiple multisets, but we'll agree on which to use
-			list = mapListeners.putIfAbsent(type, value);
-		
+			list = this.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 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) {
+	public List<PacketType> removeListener(T 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);
-			
+			SortedCopyOnWriteArray<PrioritizedListener<T>> list = this.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()));
-					
+					list.remove(new PrioritizedListener<T>(listener, whitelist.getPriority()));
+
 					if (list.size() == 0) {
-						mapListeners.remove(type);
+						this.mapListeners.remove(type);
 						removedPackets.add(type);
 					}
 				}
@@ -107,38 +108,41 @@ public abstract class AbstractConcurrentListenerMultimap<TListener> {
 		}
 		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);
+	public Collection<PrioritizedListener<T>> getListener(PacketType type) {
+		return this.mapListeners.get(type);
 	}
-	
+
 	/**
 	 * Retrieve every listener.
+	 *
 	 * @return Every listener.
 	 */
-	public Iterable<PrioritizedListener<TListener>> values() {
-		return Iterables.concat(mapListeners.values());
+	public Iterable<PrioritizedListener<T>> values() {
+		return Iterables.concat(this.mapListeners.values());
 	}
-	
+
 	/**
 	 * Retrieve every registered packet type:
+	 *
 	 * @return Registered packet type.
 	 */
 	public Set<PacketType> keySet() {
-		return mapListeners.keySet();
+		return this.mapListeners.keySet();
 	}
-	
+
 	/**
 	 * Remove all packet listeners.
 	 */
 	protected void clearListeners() {
-		mapListeners.clear();
+		this.mapListeners.clear();
 	}
 }

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

@@ -7,9 +7,9 @@ import com.google.common.base.Preconditions;
 import com.google.common.cache.CacheLoader;
 import com.google.common.cache.RemovalListener;
 import com.google.common.collect.AbstractIterator;
-import com.google.common.collect.Maps;
 import com.google.common.util.concurrent.UncheckedExecutionException;
 
+import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 
 import java.util.AbstractMap;
@@ -73,7 +73,7 @@ public class ConcurrentPlayerMap<TValue> extends AbstractMap<Player, TValue> imp
 	 * @return Concurrent player map.
 	 */
 	public static <T> ConcurrentPlayerMap<T> usingAddress() {
-		return new ConcurrentPlayerMap<T>(PlayerKey.ADDRESS);
+		return new ConcurrentPlayerMap<>(PlayerKey.ADDRESS);
 	}
 	
 	/**
@@ -82,7 +82,7 @@ public class ConcurrentPlayerMap<TValue> extends AbstractMap<Player, TValue> imp
 	 * @return Concurrent player map.
 	 */
 	public static <T> ConcurrentPlayerMap<T> usingName() {
-		return new ConcurrentPlayerMap<T>(PlayerKey.NAME);
+		return new ConcurrentPlayerMap<>(PlayerKey.NAME);
 	}
 	
 	/**
@@ -108,7 +108,7 @@ public class ConcurrentPlayerMap<TValue> extends AbstractMap<Player, TValue> imp
 	 * @return The value map.
 	 */
 	private ConcurrentMap<Object, TValue> createValueMap() {
-		return Maps.newConcurrentMap();
+		return new ConcurrentHashMap<>();
 	}
 	
 	/**
@@ -162,7 +162,7 @@ public class ConcurrentPlayerMap<TValue> extends AbstractMap<Player, TValue> imp
 	 * @return The player with the given key, or NULL if not found.
 	 */
 	private Player findOnlinePlayer(Object key) {
-		for (Player player : Util.getOnlinePlayers()) {
+		for (Player player : Bukkit.getOnlinePlayers()) {
 			if (key.equals(keyMethod.apply(player))) {
 				return player;
 			}

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

@@ -1,116 +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.concurrency;
-
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.Set;
-
-/**
- * Represents a very quick integer set that uses a lookup table to store membership.
- * <p>
- * This class is intentionally missing a size method.
- * @author Kristian
- */
-public class IntegerSet {
-	private final boolean[] array;
-
-	/**
-	 * Initialize a lookup table with the given maximum number of elements.
-	 * <p>
-	 * This creates a set for elements in the range [0, count).
-	 * <p>
-	 * Formally, the current set must be a subset of [0, 1, 2, ..., count - 1].
-	 * @param maximumCount - maximum element value and count.
-	 */
-	public IntegerSet(int maximumCount) {
-		this.array = new boolean[maximumCount];
-	}
-	
-	/**
-	 * Initialize a lookup table with a given maximum and value list.
-	 * <p>
-	 * The provided elements must be in the range [0, count).
-	 * @param maximumCount - the maximum element value and count.
-	 * @param values - the elements to add to the set.
-	 */
-	public IntegerSet(int maximumCount, Collection<Integer> values) {
-		this.array = new boolean[maximumCount];
-		addAll(values);
-	}
-	
-	/**
-	 * Determine whether or not the given element exists in the set.
-	 * @param element - the element to check. Must be in the range [0, count).
-	 * @return TRUE if the given element exists, FALSE otherwise.
-	 */
-	public boolean contains(int element) {
-		return array[element];
-	}
-	
-	/**
-	 * Add the given element to the set, or do nothing if it already exists.
-	 * @param element - element to add.
-	 * @throws ArrayIndexOutOfBoundsException If the given element is not in the range [0, count).
-	 */
-	public void add(int element) {
-		array[element] = true;
-	}
-	
-	/**
-	 * Add the given collection of elements to the set.
-	 * @param packets - elements to add.
-	 */
-	public void addAll(Collection<Integer> packets) {
-		for (Integer id : packets) {
-			add(id);
-		}
-	}
-	
-	/**
-	 * Remove the given element from the set, or do nothing if it's already removed.
-	 * @param element - element to remove.
-	 */
-	public void remove(int element) {
-		// We don't actually care if the caller tries to remove an element outside the valid set
-		if (element >= 0 && element < array.length)
-			array[element] = false;
-	}
-	
-	/**
-	 * Remove every element from the set.
-	 */
-	public void clear() {
-		Arrays.fill(array, false);
-	}
-	
-	/**
-	 * Convert the current IntegerSet to an equivalent HashSet.
-	 * @return The resulting HashSet.
-	 */
-	public Set<Integer> toSet() {
-		Set<Integer> elements = new HashSet<Integer>();
-		
-		for (int i = 0; i < array.length; i++) {
-			if (array[i])
-				elements.add(i);
-		}
-		return elements;
-	}
-}

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

@@ -1,134 +1,133 @@
 package com.comphenix.protocol.concurrency;
 
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Set;
-
 import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.injector.packet.PacketRegistry;
-import com.google.common.base.Preconditions;
-import com.google.common.collect.Maps;
+import com.google.common.collect.ImmutableSet;
+import java.util.Collection;
+import java.util.HashSet;
+import java.util.Set;
 
 /**
  * Represents a concurrent set of packet types.
+ *
  * @author Kristian
  */
 public class PacketTypeSet {
-	private Set<PacketType> types = Collections.newSetFromMap(Maps.<PacketType, Boolean>newConcurrentMap());
-	private Set<Class<?>> classes = Collections.newSetFromMap(Maps.<Class<?>, Boolean>newConcurrentMap());
-	
+
+	private final Set<PacketType> types;
+	private final Set<Class<?>> classes;
+
 	public PacketTypeSet() {
-		// Do nothing
+		this.types = new HashSet<>(16, 0.9f);
+		this.classes = new HashSet<>(16, 0.9f);
 	}
-	
+
 	public PacketTypeSet(Collection<? extends PacketType> values) {
-		for (PacketType type : values) {
-			addType(type);
-		}
+		this.types = new HashSet<>(values.size(), 0.9f);
+		this.classes = new HashSet<>(values.size(), 0.9f);
+
+		this.addAll(values);
 	}
-	
+
 	/**
 	 * Add a particular type to the set.
+	 *
 	 * @param type - the type to add.
 	 */
-	public synchronized void addType(PacketType type) {
-		Class<?> packetClass = getPacketClass(type);
-		types.add(Preconditions.checkNotNull(type, "type cannot be NULL."));
-		
+	public void addType(PacketType type) {
+		this.types.add(type);
+
+		Class<?> packetClass = type.getPacketClass();
 		if (packetClass != null) {
-			classes.add(getPacketClass(type));
+			this.classes.add(packetClass);
 		}
 	}
-	
+
 	/**
 	 * Add the given types to the set of packet types.
+	 *
 	 * @param types - the types to add.
 	 */
-	public synchronized void addAll(Iterable<? extends PacketType> types) {
+	public void addAll(Iterable<? extends PacketType> types) {
 		for (PacketType type : types) {
-			addType(type);
+			this.addType(type);
 		}
 	}
-	
+
 	/**
 	 * Remove a particular type to the set.
+	 *
 	 * @param type - the type to remove.
 	 */
-	public synchronized void removeType(PacketType type) {
-		Class<?> packetClass = getPacketClass(type);
-		types.remove(Preconditions.checkNotNull(type, "type cannot be NULL."));
-		
+	public void removeType(PacketType type) {
+		this.types.remove(type);
+
+		Class<?> packetClass = type.getPacketClass();
 		if (packetClass != null) {
-			classes.remove(getPacketClass(type));
+			this.classes.remove(packetClass);
 		}
 	}
-	
+
 	/**
 	 * Remove the given types from the set.
+	 *
 	 * @param types Types to remove
 	 */
-	public synchronized void removeAll(Iterable<? extends PacketType> types) {
+	public void removeAll(Iterable<? extends PacketType> types) {
 		for (PacketType type : types) {
-			removeType(type);
+			this.removeType(type);
 		}
 	}
-	
-	/**
-	 * Retrieve the packet class associated with a particular type.
-	 * @param type - the packet type.
-	 * @return The associated packet type.
-	 */
-	protected Class<?> getPacketClass(PacketType type) {
-		return PacketRegistry.getPacketClassFromType(type);
-	}
-	
+
 	/**
 	 * Determine if the given packet type exists in the set.
+	 *
 	 * @param type - the type to find.
 	 * @return TRUE if it does, FALSE otherwise.
 	 */
 	public boolean contains(PacketType type) {
-		return types.contains(type);
+		return this.types.contains(type);
 	}
-	
+
 	/**
 	 * Determine if a packet type with the given packet class exists in the set.
+	 *
 	 * @param packetClass - the class to find.
 	 * @return TRUE if it does, FALSE otherwise.
 	 */
 	public boolean contains(Class<?> packetClass) {
-		return classes.contains(packetClass);
+		return this.classes.contains(packetClass);
 	}
-	
+
 	/**
 	 * Determine if the type of a packet is in the current set.
+	 *
 	 * @param packet - the packet.
 	 * @return TRUE if it is, FALSE otherwise.
 	 */
 	public boolean containsPacket(Object packet) {
-		if (packet == null)
-			return false;
-		return classes.contains(packet.getClass());
+		return packet != null && this.classes.contains(packet.getClass());
 	}
-	
+
 	/**
 	 * Retrieve a view of this packet type set.
+	 *
 	 * @return The packet type values.
 	 */
 	public Set<PacketType> values() {
-		return types;
+		return ImmutableSet.copyOf(this.types);
 	}
-	
+
 	/**
 	 * Retrieve the number of entries in the set.
+	 *
 	 * @return The number of entries.
 	 */
 	public int size() {
-		return types.size();
+		return this.types.size();
 	}
-	
-	public synchronized void clear() {
-		types.clear();
-		classes.clear();
+
+	public void clear() {
+		this.types.clear();
+		this.classes.clear();
 	}
 }

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

@@ -2,243 +2,236 @@
  *  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 
+ *  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. 
+ *  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 
+ *  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 com.google.common.base.Objects;
+import com.google.common.collect.Iterables;
+
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
 
-import com.google.common.base.Objects;
-import com.google.common.collect.Iterables;
-
 /**
  * An implicitly sorted array list that preserves insertion order and maintains duplicates.
+ *
  * @param <T> - type of the elements in the list.
  */
 public class SortedCopyOnWriteArray<T extends Comparable<T>> implements Collection<T> {
+
 	// Prevent reordering
 	private volatile List<T> list;
-	
+
 	/**
 	 * Construct an empty sorted array.
 	 */
 	public SortedCopyOnWriteArray() {
-		list = new ArrayList<T>();
+		this.list = new ArrayList<>();
 	}
-	
+
 	/**
 	 * Create a sorted array from the given list. The elements will be automatically sorted.
+	 *
 	 * @param wrapped - the collection whose elements are to be placed into the list.
 	 */
 	public SortedCopyOnWriteArray(Collection<T> wrapped) {
-		this.list = new ArrayList<T>(wrapped);
+		this.list = new ArrayList<>(wrapped);
+		Collections.sort(this.list);
 	}
-	
-	/**
-	 * Create a sorted array from the given list. 
-	 * @param wrapped - the collection whose elements are to be placed into the list.
-	 * @param sort - TRUE to automatically sort the collection, FALSE if it is already sorted. 
-	 */
-	public SortedCopyOnWriteArray(Collection<T> wrapped, boolean sort) {
-		this.list = new ArrayList<T>(wrapped);
-		
-		if (sort) {
-			Collections.sort(list);
-		}
-	}
-	
+
 	/**
 	 * Inserts the given element in the proper location.
+	 *
 	 * @param value - element to insert.
 	 */
 	@Override
 	public synchronized boolean add(T value) {
-    	// We use NULL as a special marker, so we don't allow it
-    	if (value == null)
-    		throw new IllegalArgumentException("value cannot be NULL");
-    	
-    	List<T> copy = new ArrayList<T>();
+		// We use NULL as a special marker, so we don't allow it
+		if (value == null) throw new IllegalArgumentException("value cannot be NULL");
+
+		List<T> copy = new ArrayList<>();
+		boolean inserted = false;
+
+		for (T element : this.list) {
+			// If the value is now greater than the current element, it should be placed right before it
+			if (!inserted && value.compareTo(element) < 0) {
+				copy.add(value);
+				inserted = true;
+			}
+			copy.add(element);
+		}
+
+		// Don't forget to add it
+		if (!inserted) {
+			copy.add(value);
+		}
+
+		this.list = copy;
+		return true;
+	}
 
-        for (T element : list) {
-        	// If the value is now greater than the current element, it should be placed right before it
-        	if (value != null && value.compareTo(element) < 0) {
-        		copy.add(value);
-        		value = null;
-        	}
-        	copy.add(element);
-        }
-        
-        // Don't forget to add it
-        if (value != null)
-        	copy.add(value);
-        
-        list = copy;
-        return true;
-    }
-    
 	@Override
-    public synchronized boolean addAll(Collection<? extends T> values) {
-		if (values == null)
-			throw new IllegalArgumentException("values cannot be NULL");
-		if (values.size() == 0)
+	public synchronized boolean addAll(Collection<? extends T> values) {
+		if (values == null) throw new IllegalArgumentException("values cannot be NULL");
+
+		if (values.size() == 0) {
 			return false;
-		
-    	List<T> copy = new ArrayList<T>();
-    	
-    	// Insert the new content and sort it
-    	copy.addAll(list);
-    	copy.addAll(values);
-    	Collections.sort(copy);
-    	
-    	list = copy;
-    	return true;
-    }
-    
-    /**
-     * Removes from the list by making a new list with every element except the one given.
-     * <p>
-     * Objects will be compared using the given objects equals() method.
-     * @param value - value to remove.
-     */
-	@Override
-    public synchronized boolean remove(Object value) {
-    	List<T> copy = new ArrayList<T>();
-    	boolean result = false;
-    	
-    	// Note that there's not much to be gained from using BinarySearch, as we
-    	// have to copy (and thus read) the entire list regardless.
-    	
-    	// Copy every element except the one given to us. 
-    	for (T element : list) {
-    		if (!Objects.equal(value, element)) {
-    			copy.add(element);    			
-    		} else {
-    			result = true;
-    		}
-    	}
+		}
+
+		List<T> copy = new ArrayList<>(this.list);
+
+		// Insert the new content and sort it
+		copy.addAll(values);
+		Collections.sort(copy);
+
+		this.list = copy;
+		return true;
+	}
+
+	/**
+	 * Removes from the list by making a new list with every element except the one given.
+	 * <p>
+	 * Objects will be compared using the given objects equals() method.
+	 *
+	 * @param value - value to remove.
+	 */
+	@Override
+	public synchronized boolean remove(Object value) {
+		List<T> copy = new ArrayList<>();
+		boolean result = false;
+
+		// Note that there's not much to be gained from using BinarySearch, as we
+		// have to copy (and thus read) the entire list regardless.
+
+		// Copy every element except the one given to us.
+		for (T element : this.list) {
+			if (!Objects.equal(value, element)) {
+				copy.add(element);
+			} else {
+				result = true;
+			}
+		}
+
+		this.list = copy;
+		return result;
+	}
 
-    	list = copy;
-    	return result;
-    }
-    
 	@Override
 	public boolean removeAll(Collection<?> values) {
 		// Special cases
-		if (values == null)
-			throw new IllegalArgumentException("values cannot be NULL");
-		if (values.size() == 0)
+		if (values == null) throw new IllegalArgumentException("values cannot be NULL");
+
+		if (values.size() == 0) {
 			return false;
-		
-		List<T> copy = new ArrayList<T>();
-		
-		copy.addAll(list);
+		}
+
+		List<T> copy = new ArrayList<>(this.list);
 		copy.removeAll(values);
-		
-		list = copy;
+
+		this.list = copy;
 		return true;
 	}
 
 	@Override
 	public boolean retainAll(Collection<?> values) {
 		// Special cases
-		if (values == null)
-			throw new IllegalArgumentException("values cannot be NULL");
-		if (values.size() == 0)
-			return false;
-		
-		List<T> copy = new ArrayList<T>();
-		
-		copy.addAll(list);
+		if (values == null) throw new IllegalArgumentException("values cannot be NULL");
+
+		if (values.isEmpty()) return false;
+
+		List<T> copy = new ArrayList<>(this.list);
 		copy.removeAll(values);
-		
-		list = copy;
+
+		this.list = copy;
 		return true;
 	}
-	
-    /**
-     * Removes from the list by making a copy of every element except the one with the given index.
-     * @param index - index of the element to remove.
-     */
-    public synchronized void remove(int index) {
-    	List<T> copy = new ArrayList<T>(list);
-    	
-    	copy.remove(index);
-    	list = copy;
-    }
-    
-    /**
-     * Retrieves an element by index. 
-     * @param index - index of element to retrieve.
-     * @return The element at the given location.
-     */
-    public T get(int index) {
-    	return list.get(index);
-    }
-    
-    /**
-     * Retrieve the size of the list.
-     * @return Size of the list.
-     */
-    public int size() {
-    	return list.size();
-    }
 
-    /**
-     * Retrieves an iterator over the elements in the given list. 
-     * Warning: No not attempt to remove elements using the iterator.
-     */
-	public Iterator<T> iterator() {
-		return Iterables.unmodifiableIterable(list).iterator();
+	/**
+	 * Removes from the list by making a copy of every element except the one with the given index.
+	 *
+	 * @param index - index of the element to remove.
+	 */
+	public synchronized void remove(int index) {
+		List<T> copy = new ArrayList<>(this.list);
+
+		copy.remove(index);
+		this.list = copy;
 	}
-	
+
+	/**
+	 * Retrieves an element by index.
+	 *
+	 * @param index - index of element to retrieve.
+	 * @return The element at the given location.
+	 */
+	public T get(int index) {
+		return this.list.get(index);
+	}
+
+	/**
+	 * Retrieve the size of the list.
+	 *
+	 * @return Size of the list.
+	 */
+	public int size() {
+		return this.list.size();
+	}
+
+	/**
+	 * Retrieves an iterator over the elements in the given list. Warning: No not attempt to remove elements using the
+	 * iterator.
+	 */
+	public Iterator<T> iterator() {
+		return Iterables.unmodifiableIterable(this.list).iterator();
+	}
+
 	@Override
 	public void clear() {
-		list = new ArrayList<T>();
+		this.list = new ArrayList<>();
 	}
 
 	@Override
 	public boolean contains(Object value) {
-		return list.contains(value);
+		return this.list.contains(value);
 	}
 
 	@Override
 	public boolean containsAll(Collection<?> values) {
-		return list.containsAll(values);
+		return this.list.containsAll(values);
 	}
 
 	@Override
 	public boolean isEmpty() {
-		return list.isEmpty();
+		return this.list.isEmpty();
 	}
 
 	@Override
 	public Object[] toArray() {
-		return list.toArray();
+		return this.list.toArray();
 	}
 
 	@SuppressWarnings("hiding")
 	@Override
 	public <T> T[] toArray(T[] a) {
-		return list.toArray(a);
+		return this.list.toArray(a);
 	}
-	
+
 	@Override
 	public String toString() {
-		return list.toString();
+		return this.list.toString();
 	}
 }

src/main/java/com/comphenix/protocol/error/BasicErrorReporter.java

@@ -2,11 +2,11 @@ package com.comphenix.protocol.error;
 
 import java.io.PrintStream;
 
-import org.bukkit.plugin.Plugin;
-
 import com.comphenix.protocol.error.Report.ReportBuilder;
 import com.comphenix.protocol.reflect.PrettyPrinter;
 
+import org.bukkit.plugin.Plugin;
+
 /**
  * Represents a basic error reporter that prints error reports to the standard error stream.
  * <p>

src/main/java/com/comphenix/protocol/error/DelegatedErrorReporter.java

@@ -1,9 +1,9 @@
 package com.comphenix.protocol.error;
 
-import org.bukkit.plugin.Plugin;
-
 import com.comphenix.protocol.error.Report.ReportBuilder;
 
+import org.bukkit.plugin.Plugin;
+
 /**
  * Construct an error reporter that delegates to another error reporter.
  * @author Kristian

src/main/java/com/comphenix/protocol/error/DetailedErrorReporter.java

@@ -30,11 +30,7 @@ import java.util.concurrent.atomic.AtomicInteger;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-import org.apache.commons.lang.builder.ToStringBuilder;
-import org.apache.commons.lang.builder.ToStringStyle;
-import org.bukkit.Bukkit;
-import org.bukkit.plugin.Plugin;
-
+import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.ProtocolLogger;
 import com.comphenix.protocol.collections.ExpireHashMap;
 import com.comphenix.protocol.error.Report.ReportBuilder;
@@ -43,6 +39,11 @@ import com.comphenix.protocol.reflect.PrettyPrinter;
 import com.google.common.base.Preconditions;
 import com.google.common.primitives.Primitives;
 
+import org.apache.commons.lang.builder.ToStringBuilder;
+import org.apache.commons.lang.builder.ToStringStyle;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.Plugin;
+
 /**
  * Internal class used to handle exceptions.
  * 
@@ -89,7 +90,7 @@ public class DetailedErrorReporter implements ErrorReporter {
 	
 	// Reports to ignore
 	private ExpireHashMap<Report, Boolean> rateLimited = new ExpireHashMap<Report, Boolean>();
-	private Object rateLock = new Object();
+	private final Object rateLock = new Object();
 	
 	/**
 	 * Create a default error reporting system.
@@ -202,14 +203,14 @@ public class DetailedErrorReporter implements ErrorReporter {
 		
 		// See if we should print the full error
 		if (errorCount < getMaxErrorCount()) {
-			logger.log(Level.SEVERE, "[" + pluginName + "] Unhandled exception occured in " +
+			logger.log(Level.SEVERE, "[" + pluginName + "] Unhandled exception occurred in " +
 					 methodName + " for " + pluginName, error);
 			return true;
 			
 		} else {
-			// Nope - only print the error count occationally
+			// Nope - only print the error count occasionally
 			if (isPowerOfTwo(errorCount)) {
-				logger.log(Level.SEVERE, "[" + pluginName + "] Unhandled exception number " + errorCount + " occured in " +
+				logger.log(Level.SEVERE, "[" + pluginName + "] Unhandled exception number " + errorCount + " occurred in " +
 						 methodName + " for " + pluginName, error);
 			}
 			return false;
@@ -390,9 +391,9 @@ public class DetailedErrorReporter implements ErrorReporter {
 			writer.println(addPrefix(Bukkit.getServer().getVersion(), SECOND_LEVEL_PREFIX));
 
 			// Inform of this occurrence
-			if (ERROR_PERMISSION != null) {
+			if (ERROR_PERMISSION != null && ProtocolLibrary.getConfig().isChatWarnings()) {
 				Bukkit.getServer().broadcast(
-						String.format("Error %s (%s) occured in %s.", report.getReportMessage(), report.getException(), sender),
+						String.format("Error %s (%s) occurred in %s.", report.getReportMessage(), report.getException(), sender),
 						ERROR_PERMISSION
 				);
 			}

src/main/java/com/comphenix/protocol/error/ErrorReporter.java

@@ -17,10 +17,10 @@
 
 package com.comphenix.protocol.error;
 
-import org.bukkit.plugin.Plugin;
-
 import com.comphenix.protocol.error.Report.ReportBuilder;
 
+import org.bukkit.plugin.Plugin;
+
 /**
  * Represents an object that can forward an error {@link Report} to the display and permanent storage.
  * 

src/main/java/com/comphenix/protocol/error/PluginContext.java

@@ -4,11 +4,11 @@ import java.io.File;
 import java.net.URLDecoder;
 import java.security.CodeSource;
 
+import com.google.common.base.Preconditions;
+
 import org.bukkit.Bukkit;
 import org.bukkit.plugin.Plugin;
 
-import com.google.common.base.Preconditions;
-
 public final class PluginContext {
 	// Determine plugin folder
 	private static File pluginFolder;

src/main/java/com/comphenix/protocol/error/Report.java

@@ -1,10 +1,9 @@
 package com.comphenix.protocol.error;
 
+import javax.annotation.Nullable;
 import java.util.Arrays;
 import java.util.concurrent.TimeUnit;
 
-import javax.annotation.Nullable;
-
 /**
  * Represents a error or warning report.
  * 

src/main/java/com/comphenix/protocol/error/RethrowErrorReporter.java

@@ -1,10 +1,10 @@
 package com.comphenix.protocol.error;
 
-import org.bukkit.plugin.Plugin;
-
 import com.comphenix.protocol.error.Report.ReportBuilder;
 import com.google.common.base.Joiner;
 
+import org.bukkit.plugin.Plugin;
+
 /**
  * Represents an error reporter that rethrows every exception instead.
  * @author Kristian

src/main/java/com/comphenix/protocol/events/InternalStructure.java

@@ -0,0 +1,48 @@
+package com.comphenix.protocol.events;
+
+import java.util.Optional;
+
+import com.comphenix.protocol.reflect.EquivalentConverter;
+import com.comphenix.protocol.reflect.StructureModifier;
+import com.comphenix.protocol.wrappers.Converters;
+
+public class InternalStructure extends AbstractStructure {
+
+    public InternalStructure(Object handle, StructureModifier<Object> structureModifier) {
+        super(handle, structureModifier);
+    }
+
+    protected static final EquivalentConverter<InternalStructure> CONVERTER = new EquivalentConverter<InternalStructure>() {
+        @Override
+        public Object getGeneric(InternalStructure specific) {
+            return specific.handle;
+        }
+
+        @Override
+        public InternalStructure getSpecific(Object generic) {
+            return new InternalStructure(generic, new StructureModifier<>(generic.getClass()).withTarget(generic));
+        }
+
+        @Override
+        public Class<InternalStructure> getSpecificType() {
+            return InternalStructure.class;
+        }
+    };
+
+    public static EquivalentConverter<InternalStructure> getConverter() {
+        return CONVERTER;
+    }
+
+    public StructureModifier<InternalStructure> getStructures() {
+        return structureModifier.withType(Object.class, CONVERTER);
+    }
+
+    public StructureModifier<Optional<InternalStructure>> getOptionalStructures() {
+        return structureModifier.withType(Optional.class, Converters.optional(CONVERTER));
+    }
+
+    @Override
+    public String toString() {
+        return "InternalStructure[handle=" + handle + " (" + handle.getClass().getSimpleName() + ")]";
+    }
+}

src/main/java/com/comphenix/protocol/events/ListenerOptions.java

@@ -2,31 +2,32 @@ package com.comphenix.protocol.events;
 
 import com.comphenix.protocol.injector.GamePhase;
 
-
 /**
  * Represents additional options a listener may require.
- * 
+ *
  * @author Kristian
  */
 public enum ListenerOptions {
+
 	/**
-	 * Retrieve the serialized client packet as it appears on the network stream.
-	 */
-	INTERCEPT_INPUT_BUFFER,
-	
-	/**
-	 * Disable the automatic game phase detection that will normally force {@link GamePhase#LOGIN} when
-	 * a packet ID is known to be transmitted during login.
+	 * Disable the automatic game phase detection that will normally force {@link GamePhase#LOGIN} when a packet ID is
+	 * known to be transmitted during login.
 	 */
 	DISABLE_GAMEPHASE_DETECTION,
-	
+
 	/**
 	 * Do not verify that the owning plugin has a vaid plugin.yml.
 	 */
 	SKIP_PLUGIN_VERIFIER,
-	
+
 	/**
 	 * Notify ProtocolLib that {@link PacketListener#onPacketSending(PacketEvent)} is thread safe.
 	 */
-	ASYNC;
+	ASYNC,
+
+	/**
+	 * Notify ProtocolLib that {@link PacketListener#onPacketReceiving(PacketEvent)} must be executed on the main server
+	 * thread.
+	 */
+	SYNC
 }

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

@@ -21,16 +21,16 @@ import java.util.*;
 
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.injector.GamePhase;
-import com.comphenix.protocol.injector.packet.PacketRegistry;
 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.
 	 */
@@ -55,8 +55,72 @@ public class ListeningWhitelist {
 		this.options = EnumSet.noneOf(ListenerOptions.class);
 	}
 
+	/**
+	 * Determine if the given whitelist is empty or not.
+	 *
+	 * @param whitelist - the whitelist to test.
+	 * @return TRUE if the whitelist is empty, FALSE otherwise.
+	 */
+	public static boolean isEmpty(ListeningWhitelist whitelist) {
+		if (whitelist == EMPTY_WHITELIST) {
+			return true;
+		} else if (whitelist == null) {
+			return true;
+		} else {
+			return whitelist.getTypes().isEmpty();
+		}
+	}
+
+	/**
+	 * Construct a new builder of whitelists.
+	 *
+	 * @return New whitelist builder.
+	 */
+	public static Builder newBuilder() {
+		return new Builder(null);
+	}
+
+	/**
+	 * Construct a new builder of whitelists initialized to the same values as the template.
+	 *
+	 * @param template - the template object.
+	 * @return New whitelist builder.
+	 */
+	public static Builder newBuilder(ListeningWhitelist template) {
+		return new Builder(template);
+	}
+
+	/**
+	 * Construct a copy of a given enum.
+	 *
+	 * @param options - the options to copy, or NULL to indicate the empty set.
+	 * @return A copy of the enum set.
+	 */
+	private static <T extends Enum<T>> EnumSet<T> safeEnumSet(Collection<T> options, Class<T> enumClass) {
+		if (options != null && !options.isEmpty()) {
+			return EnumSet.copyOf(options);
+		} else {
+			return EnumSet.noneOf(enumClass);
+		}
+	}
+
+	/**
+	 * Construct a copy of a given set.
+	 *
+	 * @param set - the set to copy.
+	 * @return The copied set.
+	 */
+	private static <T> Set<T> safeSet(Collection<T> set) {
+		if (set != null) {
+			return new HashSet<>(set);
+		} else {
+			return Collections.emptySet();
+		}
+	}
+
 	/**
 	 * Whether or not this whitelist has any enabled packets.
+	 *
 	 * @return TRUE if there are any packets, FALSE otherwise.
 	 */
 	public boolean isEnabled() {
@@ -65,6 +129,7 @@ public class ListeningWhitelist {
 
 	/**
 	 * 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() {
@@ -73,22 +138,25 @@ public class ListeningWhitelist {
 
 	/**
 	 * Retrieves a set of the packets that will be observed by the listeners.
+	 *
 	 * @return Packet whitelist.
 	 */
 	public Set<PacketType> getTypes() {
 		return types;
 	}
-	
+
 	/**
 	 * Retrieve which game phase this listener is active under.
+	 *
 	 * @return The active game phase.
 	 */
 	public GamePhase getGamePhase() {
 		return gamePhase;
 	}
-	
+
 	/**
 	 * Retrieve every special option associated with this whitelist.
+	 *
 	 * @return Every special option.
 	 */
 	public Set<ListenerOptions> getOptions() {
@@ -100,20 +168,6 @@ public class ListeningWhitelist {
 		return Objects.hashCode(priority, types, gamePhase, options);
 	}
 
-	/**
-	 * Determine if the given whitelist is empty or not.
-	 * @param whitelist - the whitelist to test.
-	 * @return TRUE if the whitelist is empty, FALSE otherwise.
-	 */
-	public static boolean isEmpty(ListeningWhitelist whitelist) {
-		if (whitelist == EMPTY_WHITELIST)
-			return true;
-		else if (whitelist == null)
-			return true;
-		else
-			return whitelist.getTypes().isEmpty();
-	}
-
 	@Override
 	public boolean equals(final Object obj) {
 		if (obj instanceof ListeningWhitelist) {
@@ -129,67 +183,30 @@ public class ListeningWhitelist {
 
 	@Override
 	public String toString() {
-		if (this == EMPTY_WHITELIST)
+		if (this == EMPTY_WHITELIST) {
 			return "EMPTY_WHITELIST";
-		else
-			return "ListeningWhitelist[priority=" + priority + ", packets=" + types + ", gamephase=" + gamePhase + ", options=" + options + "]";
-	}
-	
-	/**
-	 * Construct a new builder of whitelists.
-	 * @return New whitelist builder.
-	 */
-	public static Builder newBuilder() {
-		return new Builder(null);
-	}
-	
-	/**
-	 * Construct a new builder of whitelists initialized to the same values as the template.
-	 * @param template - the template object.
-	 * @return New whitelist builder.
-	 */
-	public static Builder newBuilder(ListeningWhitelist template) {
-		return new Builder(template);
-	}
-	
-	/**
-	 * Construct a copy of a given enum.
-	 * @param options - the options to copy, or NULL to indicate the empty set.
-	 * @return A copy of the enum set.
-	 */
-	private static <T extends Enum<T>> EnumSet<T> safeEnumSet(Collection<T> options, Class<T> enumClass) {
-		if (options != null && !options.isEmpty()) {
-			return EnumSet.copyOf(options);
 		} else {
-			return EnumSet.noneOf(enumClass);
+			return "ListeningWhitelist[priority=" + priority + ", packets=" + types + ", gamephase=" + gamePhase
+					+ ", options=" + options + "]";
 		}
 	}
-	
-	/**
-	 * Construct a copy of a given set.
-	 * @param set - the set to copy.
-	 * @return The copied set.
-	 */
-	private static <T> Set<T> safeSet(Collection<T> set) {
-		if (set != null)
-			return Sets.newHashSet(set);
-		else
-			return Collections.emptySet();
-	}
 
 	/**
 	 * Represents a builder of whitelists.
+	 *
 	 * @author Kristian
 	 */
 	public static class Builder {
+
 		// Default values
 		private ListenerPriority priority = ListenerPriority.NORMAL;
-		private Set<PacketType> types = Sets.newHashSet();
+		private Set<PacketType> types = new HashSet<>();
 		private GamePhase gamePhase = GamePhase.PLAYING;
-		private Set<ListenerOptions> options = Sets.newHashSet();
-		
+		private Set<ListenerOptions> options = new HashSet<>();
+
 		/**
 		 * Construct a new listening whitelist template.
+		 *
 		 * @param template - the template.
 		 */
 		private Builder(ListeningWhitelist template) {
@@ -200,9 +217,10 @@ public class ListeningWhitelist {
 				options(template.getOptions());
 			}
 		}
-		
+
 		/**
 		 * Set the priority to use when constructing new whitelists.
+		 *
 		 * @param priority - the priority.
 		 * @return This builder, for chaining.
 		 */
@@ -210,49 +228,55 @@ public class ListeningWhitelist {
 			this.priority = priority;
 			return this;
 		}
-		
+
 		/**
 		 * Set the priority of the whitelist to monitor.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public Builder monitor() {
 			return priority(ListenerPriority.MONITOR);
 		}
-		
+
 		/**
 		 * Set the priority of the whitelist to normal.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public Builder normal() {
 			return priority(ListenerPriority.NORMAL);
 		}
-		
+
 		/**
 		 * Set the priority of the whitelist to lowest.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public Builder lowest() {
 			return priority(ListenerPriority.LOWEST);
 		}
-		
+
 		/**
 		 * Set the priority of the whitelist to low.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public Builder low() {
 			return priority(ListenerPriority.LOW);
 		}
-		
+
 		/**
 		 * Set the priority of the whitelist to highest.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public Builder highest() {
 			return priority(ListenerPriority.HIGHEST);
 		}
-		
+
 		/**
 		 * Set the priority of the whitelist to high.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public Builder high() {
@@ -261,6 +285,7 @@ public class ListeningWhitelist {
 
 		/**
 		 * Set the whitelist of packet types to copy when constructing new whitelists.
+		 *
 		 * @param types - the whitelist of packets.
 		 * @return This builder, for chaining.
 		 */
@@ -268,9 +293,10 @@ public class ListeningWhitelist {
 			this.types = safeSet(Sets.newHashSet(types));
 			return this;
 		}
-		
+
 		/**
 		 * Set the whitelist of packet types to copy when constructing new whitelists.
+		 *
 		 * @param types - the whitelist of packets.
 		 * @return This builder, for chaining.
 		 */
@@ -278,9 +304,10 @@ public class ListeningWhitelist {
 			this.types = safeSet(types);
 			return this;
 		}
-		
+
 		/**
 		 * Set the gamephase to use when constructing new whitelists.
+		 *
 		 * @param gamePhase - the gamephase.
 		 * @return This builder, for chaining.
 		 */
@@ -288,16 +315,19 @@ public class ListeningWhitelist {
 			this.gamePhase = gamePhase;
 			return this;
 		}
-		
+
 		/**
 		 * Set the gamephase to {@link GamePhase#BOTH}.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public Builder gamePhaseBoth() {
 			return gamePhase(GamePhase.BOTH);
 		}
+
 		/**
 		 * Set the options to copy when constructing new whitelists.
+		 *
 		 * @param options - the options.
 		 * @return This builder, for chaining.
 		 */
@@ -305,9 +335,10 @@ public class ListeningWhitelist {
 			this.options = safeSet(options);
 			return this;
 		}
-		
+
 		/**
 		 * Set the options to copy when constructing new whitelists.
+		 *
 		 * @param options - the options.
 		 * @return This builder, for chaining.
 		 */
@@ -315,9 +346,10 @@ public class ListeningWhitelist {
 			this.options = safeSet(options);
 			return this;
 		}
-		
+
 		/**
 		 * Set the options to copy when constructing new whitelists.
+		 *
 		 * @param serverOptions - the options array.
 		 * @return This builder, for chaining.
 		 */
@@ -325,32 +357,36 @@ public class ListeningWhitelist {
 			this.options = safeSet(Sets.newHashSet(serverOptions));
 			return this;
 		}
-		
+
 		/**
 		 * Options to merge into the current set of options.
+		 *
 		 * @param serverOptions - the options array.
 		 * @return This builder, for chaining.
 		 */
 		public Builder mergeOptions(ListenerOptions... serverOptions) {
 			return mergeOptions(Arrays.asList(serverOptions));
 		}
-		
+
 		/**
 		 * Options to merge into the current set of options.
+		 *
 		 * @param serverOptions - the options array.
 		 * @return This builder, for chaining.
 		 */
 		public Builder mergeOptions(Collection<ListenerOptions> serverOptions) {
-			if (options == null)
+			if (options == null) {
 				return options(serverOptions);
-			
+			}
+
 			// Merge the options
 			this.options.addAll(serverOptions);
 			return this;
 		}
-		
+
 		/**
 		 * Construct a new whitelist from the values in this builder.
+		 *
 		 * @return The new whitelist.
 		 */
 		public ListeningWhitelist build() {

src/main/java/com/comphenix/protocol/events/MonitorAdapter.java

@@ -2,82 +2,76 @@
  *  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 
+ *  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. 
+ *  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 
+ *  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.Collection;
 import java.util.logging.Logger;
 
+import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.injector.packet.PacketRegistry;
-
 import org.bukkit.plugin.Plugin;
 
 /**
  * Represents a listener that is notified of every sent and received packet.
- * 
+ *
  * @author Kristian
  */
 public abstract class MonitorAdapter implements PacketListener {
 
-	private Plugin plugin;
-	private ListeningWhitelist sending = ListeningWhitelist.EMPTY_WHITELIST;
-	private ListeningWhitelist receiving = ListeningWhitelist.EMPTY_WHITELIST;
+	private final Plugin plugin;
+	private final ListeningWhitelist sending;
+	private final ListeningWhitelist receiving;
 
 	public MonitorAdapter(Plugin plugin, ConnectionSide side) {
-		initialize(plugin, side, getLogger(plugin));
-	}
-	
-	public MonitorAdapter(Plugin plugin, ConnectionSide side, Logger logger) {
-		initialize(plugin, side, logger);
-	}
-
-	private void initialize(Plugin plugin, ConnectionSide side, Logger logger) {
 		this.plugin = plugin;
 
-		// Recover in case something goes wrong
-		if (side.isForServer())
-			this.sending = ListeningWhitelist.newBuilder().monitor().types(PacketRegistry.getServerPacketTypes()).gamePhaseBoth().build();
-		if (side.isForClient())
-			this.receiving = ListeningWhitelist.newBuilder().monitor().types(PacketRegistry.getClientPacketTypes()).gamePhaseBoth().build();
+		// check the connection side and register the packets for the given side
+		this.sending = side.isForServer() ? buildWhitelist(PacketRegistry.getServerPacketTypes()) : ListeningWhitelist.EMPTY_WHITELIST;
+		this.receiving = side.isForClient() ? buildWhitelist(PacketRegistry.getClientPacketTypes()) : ListeningWhitelist.EMPTY_WHITELIST;
 	}
 
-	/**
-	 * Retrieve a logger, even if we're running in a CraftBukkit version that doesn't support it.
-	 * @param plugin - the plugin to retrieve.
-	 * @return The logger.
-	 */
-	private Logger getLogger(Plugin plugin) {
-		try {
-			return plugin.getLogger();
-		} catch (NoSuchMethodError e) {
-			return Logger.getLogger("Minecraft");
-		}
+	@Deprecated
+	public MonitorAdapter(Plugin plugin, ConnectionSide side, Logger logger) {
+		this(plugin, side);
 	}
-	
+
+	private static ListeningWhitelist buildWhitelist(Collection<PacketType> packetTypes) {
+		return ListeningWhitelist.newBuilder().monitor().gamePhaseBoth().types(packetTypes).build();
+	}
+
 	@Override
 	public ListeningWhitelist getSendingWhitelist() {
-		return sending;
+		return this.sending;
 	}
-	
+
 	@Override
 	public ListeningWhitelist getReceivingWhitelist() {
-		return receiving;
+		return this.receiving;
 	}
-	
+
 	@Override
 	public Plugin getPlugin() {
-		return plugin;
+		return this.plugin;
+	}
+
+	@Override
+	public void onPacketSending(PacketEvent event) {
+	}
+
+	@Override
+	public void onPacketReceiving(PacketEvent event) {
 	}
 }
-

src/main/java/com/comphenix/protocol/events/NetworkMarker.java

@@ -1,421 +1,153 @@
 package com.comphenix.protocol.events;
 
-import java.io.ByteArrayInputStream;
-import java.io.DataInputStream;
-import java.io.IOException;
-import java.nio.ByteBuffer;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.Comparator;
-import java.util.List;
-import java.util.PriorityQueue;
-
 import javax.annotation.Nonnull;
-
-import org.bukkit.entity.Player;
+import java.util.*;
 
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.ProtocolManager;
-import com.comphenix.protocol.utility.ByteBufferInputStream;
-import com.comphenix.protocol.utility.MinecraftReflection;
-import com.comphenix.protocol.utility.StreamSerializer;
 import com.google.common.base.Preconditions;
-import com.google.common.collect.Lists;
-import com.google.common.primitives.Ints;
+
+import org.bukkit.entity.Player;
 
 /**
- * Marker containing the serialized packet data seen from the network,
- * or output handlers that will serialize the current packet.
- * 
+ * Marker containing the serialized packet data seen from the network, or output handlers that will serialize the
+ * current packet.
+ *
  * @author Kristian
  */
-public abstract class NetworkMarker {
-	public static class EmptyBufferMarker extends NetworkMarker {
-		public EmptyBufferMarker(@Nonnull ConnectionSide side) {
-			super(side, (byte[]) null, null);
-		}
+public class NetworkMarker {
 
-		@Override
-		protected DataInputStream skipHeader(DataInputStream input) throws IOException {
-			throw new IllegalStateException("Buffer is empty.");
-		}
-
-		@Override
-		protected ByteBuffer addHeader(ByteBuffer buffer, PacketType type) {
-			throw new IllegalStateException("Buffer is empty.");
-		}
-
-		@Override
-		protected DataInputStream addHeader(DataInputStream input, PacketType type) {
-			throw new IllegalStateException("Buffer is empty.");
-		}
-	}
-	
-	// Custom network handler
-	private PriorityQueue<PacketOutputHandler> outputHandlers;
-	// Post listeners
-	private List<PacketPostListener> postListeners;
-	// Post packets
-	private List<ScheduledPacket> scheduledPackets;
-	
-	// The input buffer
-	private ByteBuffer inputBuffer;
-	private final ConnectionSide side;
+	// The input data
 	private final PacketType type;
-	
-	// Cache serializer too
-	private StreamSerializer serializer;
-	
-	/**
-	 * Construct a new network marker.
-	 * @param side - which side this marker belongs to.
-	 * @param inputBuffer - the read serialized packet data.
-	 * @param type - packet type
-	 */
-	public NetworkMarker(@Nonnull ConnectionSide side, ByteBuffer inputBuffer, PacketType type) {
-		this.side = Preconditions.checkNotNull(side, "side cannot be NULL.");
-		this.inputBuffer = inputBuffer;
-		this.type = type;
-	}
-	
+	private final ConnectionSide side;
+
+	// Post-processing of the packet
+	private Set<PacketPostListener> postListeners;
+	private Deque<ScheduledPacket> scheduledPackets;
+
 	/**
 	 * Construct a new network marker.
 	 * <p>
 	 * The input buffer is only non-null for client-side packets.
+	 *
 	 * @param side - which side this marker belongs to.
-	 * @param inputBuffer - the read serialized packet data.
 	 * @param type - packet type
 	 */
-	public NetworkMarker(@Nonnull ConnectionSide side, byte[] inputBuffer, PacketType type) {
+	public NetworkMarker(@Nonnull ConnectionSide side, PacketType type) {
 		this.side = Preconditions.checkNotNull(side, "side cannot be NULL.");
 		this.type = type;
-			
-		if (inputBuffer != null) {
-			this.inputBuffer = ByteBuffer.wrap(inputBuffer);
-		}
-	}
-	
-	/**
-	 * Retrieve whether or not this marker belongs to a client or a server side packet.
-	 * @return The side the parent packet belongs to.
-	 */
-	public ConnectionSide getSide() {
-		return side;
 	}
 
-	/**
-	 * Retrieve a utility class for serializing and deserializing Minecraft objects.
-	 * @return Serialization utility class.
-	 */
-	public StreamSerializer getSerializer() {
-		if (serializer == null)
-			serializer = new StreamSerializer();
-		return serializer;
-	}
-	
-	/**
-	 * Retrieve the serialized packet data (excluding the header by default) from the network input stream.
-	 * <p>
-	 * The returned buffer is read-only. If the parent event is a server side packet this
-	 * method throws {@link IllegalStateException}.
-	 * <p>
-	 * It returns NULL if the packet was transmitted by a plugin locally.
-	 * @return A byte buffer containing the raw packet data read from the network.
-	 */
-	public ByteBuffer getInputBuffer() {
-		return getInputBuffer(true);
-	}
-		
-	/**
-	 * Retrieve the serialized packet data from the network input stream.
-	 * <p>
-	 * The returned buffer is read-only. If the parent event is a server side packet this
-	 * method throws {@link IllegalStateException}.
-	 * <p>
-	 * It returns NULL if the packet was transmitted by a plugin locally.
-	 * @param excludeHeader - whether or not to exclude the packet ID header.
-	 * @return A byte buffer containing the raw packet data read from the network.
-	 */
-	public ByteBuffer getInputBuffer(boolean excludeHeader) {
-		if (side.isForServer())
-			throw new IllegalStateException("Server-side packets have no input buffer.");
-		
-		if (inputBuffer != null) {
-			ByteBuffer result = inputBuffer.asReadOnlyBuffer();
-			
-			try {
-				if (excludeHeader)
-					result = skipHeader(result);
-				else
-					result = addHeader(result, type);
-			} catch (IOException e) {
-				throw new RuntimeException("Cannot skip packet header.", e);
-			}
-			return result;
-		}
-		return null;
-	}
-	
-	/**
-	 * Retrieve the serialized packet data (excluding the header by default) as an input stream.
-	 * <p>
-	 * The data is exactly the same as in {@link #getInputBuffer()}.
-	 * @see #getInputBuffer()
-	 * @return The incoming serialized packet data as a stream, or NULL if the packet was transmitted locally.
-	 */
-	public DataInputStream getInputStream() {
-		return getInputStream(true);
-	}
-	
-	/**
-	 * Retrieve the serialized packet data as an input stream.
-	 * <p>
-	 * The data is exactly the same as in {@link #getInputBuffer()}.
-	 * @see #getInputBuffer()
-	 * @param excludeHeader - whether or not to exclude the packet ID header.
-	 * @return The incoming serialized packet data as a stream, or NULL if the packet was transmitted locally.
-	 */
-	@SuppressWarnings("resource")
-	public DataInputStream getInputStream(boolean excludeHeader) {
-		if (side.isForServer())
-			throw new IllegalStateException("Server-side packets have no input buffer.");
-		if (inputBuffer == null)
-			return null;
-		
-		DataInputStream input = new DataInputStream(
-				new ByteArrayInputStream(inputBuffer.array())
-		);
-		
-		try {
-			if (excludeHeader)
-				input = skipHeader(input);
-			else
-				input = addHeader(input, type);
-		} catch (IOException e) {
-			throw new RuntimeException("Cannot skip packet header.", e);
-		}
-		return input;
-	}
-	
-	/**
-	 * Whether or not the output handlers have to write a packet header.
-	 * @return TRUE if they do, FALSE otherwise.
-	 */
-	public boolean requireOutputHeader() {
-		return MinecraftReflection.isUsingNetty();
-	}
-	
-	/**
-	 * Enqueue the given output handler for managing how the current packet will be written to the network stream.
-	 * <p>
-	 * Note that output handlers are not serialized, as most consumers will probably implement them using anonymous classes.
-	 * It is not safe to serialize anonymous classes, as their name depend on the order in which they are declared in the parent class.
-	 * <p>
-	 * This can only be invoked on server side packet events.
-	 * @param handler - the handler that will take part in serializing the packet.
-	 * @return TRUE if it was added, FALSE if it has already been added.
-	 */
-	public boolean addOutputHandler(@Nonnull PacketOutputHandler handler) {
-		checkServerSide();
-		Preconditions.checkNotNull(handler, "handler cannot be NULL.");
-		
-		// Lazy initialization - it's imperative that we save space and time here
-		if (outputHandlers == null) {
-			outputHandlers = new PriorityQueue<PacketOutputHandler>(10, new Comparator<PacketOutputHandler>() {
-				@Override
-				public int compare(PacketOutputHandler o1, PacketOutputHandler o2) {
-					return Ints.compare(o1.getPriority().getSlot(), o2.getPriority().getSlot());
-				}
-			});
-		}
-		return outputHandlers.add(handler);
-	}
-	
-	/**
-	 * Remove a given output handler from the serialization queue.
-	 * <p>
-	 * This can only be invoked on server side packet events.
-	 * @param handler - the handler to remove.
-	 * @return TRUE if the handler was removed, FALSE otherwise.
-	 */
-	public boolean removeOutputHandler(@Nonnull PacketOutputHandler handler) {
-		checkServerSide();
-		Preconditions.checkNotNull(handler, "handler cannot be NULL.");
-		
-		if (outputHandlers != null) {
-			return outputHandlers.remove(handler);
-		}
-		return false;
-	}
-	
-	/**
-	 * Retrieve every registered output handler in no particular order.
-	 * @return Every registered output handler.
-	 */
-	@Nonnull
-	public Collection<PacketOutputHandler> getOutputHandlers() {
-		if (outputHandlers != null) {
-			return outputHandlers;
-		} else {
-			return Collections.emptyList();
-		}
-	}
-	
-	/**
-	 * Add a listener that is invoked after a packet has been successfully sent to the client, or received
-	 * by the server.
-	 * <p>
-	 * Received packets are not guarenteed to have been fully processed, but packets passed
-	 * to {@link ProtocolManager#recieveClientPacket(Player, PacketContainer)} will be processed after the
-	 * current packet event.
-	 * <p>
-	 * Note that post listeners will be executed asynchronously off the main thread. They are not executed
-	 * in any defined order.
-	 * @param listener - the listener that will be invoked.
-	 * @return TRUE if it was added.
-	 */
-	public boolean addPostListener(PacketPostListener listener) {
-		if (postListeners == null)
-			postListeners = Lists.newArrayList();
-		return postListeners.add(listener);
-	}
-	
-	/**
-	 * Remove the first instance of the given listener.
-	 * @param listener - listener to remove.
-	 * @return TRUE if it was removed, FALSE otherwise.
-	 */
-	public boolean removePostListener(PacketPostListener listener) {
-		if (postListeners != null) {
-			return postListeners.remove(listener);
-		}
-		return false;
-	}
-	
-	/**
-	 * Retrieve an immutable view of all the listeners that will be invoked once the packet has been sent or received.
-	 * @return Every post packet listener. Never NULL.
-	 */
-	public List<PacketPostListener> getPostListeners() {
-		return postListeners != null ? Collections.unmodifiableList(postListeners) : Collections.<PacketPostListener>emptyList();
-	}
-	
-	/**
-	 * Retrieve a list of packets that will be schedule (in-order) when the current packet has been successfully transmitted.
-	 * <p>
-	 * This list is modifiable.
-	 * @return List of packets that will be scheduled.
-	 */
-	public List<ScheduledPacket> getScheduledPackets() {
-		if (scheduledPackets == null)
-			scheduledPackets = Lists.newArrayList();
-		return scheduledPackets;
-	}
-	
-	/**
-	 * Ensure that the packet event is server side.
-	 */
-	private void checkServerSide() {
-		if (side.isForClient()) {
-			throw new IllegalStateException("Must be a server side packet.");
-		}
-	}
-	
-	/**
-	 * Return a byte buffer without the header in the current packet.
-	 * <p>
-	 * It's safe to modify the position of the buffer.
-	 * @param buffer - a read-only byte source.
-	 * @return A byte buffer without the header in the current packet.
-	 * @throws IOException If integer reading fails
-	 */
-	protected ByteBuffer skipHeader(ByteBuffer buffer) throws IOException {
-		skipHeader(new DataInputStream(new ByteBufferInputStream(buffer)));
-		return buffer;
-	}
-	
-	/**
-	 * Return an input stream without the header in the current packet.
-	 * <p>
-	 * It's safe to modify the input stream.
-	 * @param input - input stream
-	 * @return An input stream without the header
-	 * @throws IOException If integer reading fails
-	 */
-	protected abstract DataInputStream skipHeader(DataInputStream input) throws IOException;
-	
-	/**
-	 * Return the byte buffer prepended with the packet header.
-	 * @param buffer - the read-only byte buffer.
-	 * @param type - the current packet.
-	 * @return The byte buffer.
-	 */
-	protected abstract ByteBuffer addHeader(ByteBuffer buffer, PacketType type);
-	
-	/**
-	 * Return the input stream prepended with the packet header.
-	 * @param input - the input stream.
-	 * @param type - the current packet.
-	 * @return The byte buffer.
-	 */
-	protected abstract DataInputStream addHeader(DataInputStream input, PacketType type);
-	
-	/**
-	 * Determine if the given marker has any output handlers.
-	 * @param marker - the marker to check.
-	 * @return TRUE if it does, FALSE otherwise.
-	 */
-	public static boolean hasOutputHandlers(NetworkMarker marker) {
-		return marker != null && !marker.getOutputHandlers().isEmpty();
-	}
-	
 	/**
 	 * Determine if the given marker has any post listeners.
+	 *
 	 * @param marker - the marker to check.
 	 * @return TRUE if it does, FALSE otherwise.
 	 */
 	public static boolean hasPostListeners(NetworkMarker marker) {
 		return marker != null && !marker.getPostListeners().isEmpty();
 	}
-	
-	/**
-	 * Retrieve the byte buffer stored in the given marker.
-	 * @param marker - the marker.
-	 * @return The byte buffer, or NULL if not found.
-	 */
-	public static byte[] getByteBuffer(NetworkMarker marker) {
-		if (marker != null) {
-			ByteBuffer buffer = marker.getInputBuffer();
-			
-			if (buffer != null) {
-				byte[] data = new byte[buffer.remaining()];
-				
-				buffer.get(data, 0, data.length);
-				return data;
-			}
-		}
-		return null;
-	}
-	
+
 	/**
 	 * Retrieve the network marker of a particular event without creating it.
 	 * <p>
 	 * This is an internal method that should not be used by API users.
+	 *
 	 * @param event - the event.
 	 * @return The network marker.
 	 */
 	public static NetworkMarker getNetworkMarker(PacketEvent event) {
 		return event.networkMarker;
 	}
-	
+
 	/**
 	 * Retrieve the scheduled packets of a particular network marker without constructing the list.
 	 * <p>
 	 * This is an internal method that should not be used by API users.
+	 *
 	 * @param marker - the marker.
 	 * @return The list, or NULL if not found or initialized.
 	 */
-	public static List<ScheduledPacket> readScheduledPackets(NetworkMarker marker) {
+	public static Deque<ScheduledPacket> readScheduledPackets(NetworkMarker marker) {
 		return marker.scheduledPackets;
 	}
+
+	/**
+	 * Retrieve whether or not this marker belongs to a client or a server side packet.
+	 *
+	 * @return The side the parent packet belongs to.
+	 */
+	public ConnectionSide getSide() {
+		return this.side;
+	}
+
+	public PacketType getType() {
+		return this.type;
+	}
+
+	/**
+	 * Add a listener that is invoked after a packet has been successfully sent to the client, or received by the server.
+	 * <p>
+	 * Received packets are not guarenteed to have been fully processed, but packets passed to {@link
+	 * ProtocolManager#receiveClientPacket(Player, PacketContainer)} will be processed after the current packet event.
+	 * <p>
+	 * Note that post listeners will be executed asynchronously off the main thread. They are not executed in any defined
+	 * order.
+	 *
+	 * @param listener - the listener that will be invoked.
+	 * @return TRUE if it was added.
+	 */
+	public boolean addPostListener(PacketPostListener listener) {
+		if (this.postListeners == null) {
+			this.postListeners = new HashSet<>();
+		}
+
+		return this.postListeners.add(listener);
+	}
+
+	/**
+	 * Remove the first instance of the given listener.
+	 *
+	 * @param listener - listener to remove.
+	 * @return TRUE if it was removed, FALSE otherwise.
+	 */
+	public boolean removePostListener(PacketPostListener listener) {
+		if (this.postListeners != null) {
+			return this.postListeners.remove(listener);
+		}
+
+		return false;
+	}
+
+	/**
+	 * Retrieve an immutable view of all the listeners that will be invoked once the packet has been sent or received.
+	 *
+	 * @return Every post packet listener. Never NULL.
+	 */
+	public Set<PacketPostListener> getPostListeners() {
+		return this.postListeners != null ? this.postListeners : Collections.emptySet();
+	}
+
+	/**
+	 * Retrieve a modifiable queue of packets that will be schedule (in-order) when the current packet has been
+	 * successfully transmitted.
+	 *
+	 * @return the queue of packets to schedule after this packet, in order.
+	 */
+	public Deque<ScheduledPacket> getScheduledPackets() {
+		if (this.scheduledPackets == null) {
+			this.scheduledPackets = new LinkedList<>();
+		}
+
+		return this.scheduledPackets;
+	}
+
+	/**
+	 * Ensure that the packet event is server side.
+	 */
+	private void checkServerSide() {
+		if (this.side.isForClient()) {
+			throw new IllegalStateException("Must be a server side packet.");
+		}
+	}
 }

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

@@ -17,15 +17,13 @@
 
 package com.comphenix.protocol.events;
 
-import java.util.List;
-import java.util.Set;
 import javax.annotation.Nonnull;
+import java.util.Set;
 
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.injector.GamePhase;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.Iterables;
-import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 
 import org.bukkit.plugin.Plugin;
@@ -34,69 +32,80 @@ import org.bukkit.plugin.Plugin;
  * Represents a packet listener with useful constructors.
  * <p>
  * Remember to override onPacketReceiving() and onPacketSending(), depending on the ConnectionSide.
+ *
  * @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 adapter using a collection of parameters. Use {@link #params()} to get an instance to this builder.
+	 * Initialize a packet adapter using a collection of parameters. Use {@link #params()} to get an instance to this
+	 * builder.
+	 *
 	 * @param params - the parameters.
 	 */
 	public PacketAdapter(@Nonnull AdapterParameteters params) {
 		this(
-			checkValidity(params).plugin, params.connectionSide, params.listenerPriority,
-			params.gamePhase, params.options, params.packets
+				checkValidity(params).plugin, params.connectionSide, params.listenerPriority,
+				params.gamePhase, params.options, params.packets
 		);
 	}
-	
+
 	/**
 	 * Initialize a packet listener with the given parameters.
+	 *
 	 * @param plugin - the plugin.
-	 * @param types - the packet types.
+	 * @param types  - the packet types.
 	 */
 	public PacketAdapter(Plugin plugin, PacketType... types) {
 		this(plugin, ListenerPriority.NORMAL, types);
 	}
-	
+
 	/**
 	 * Initialize a packet listener with the given parameters.
+	 *
 	 * @param plugin - the plugin.
-	 * @param types - the packet types.
+	 * @param types  - the packet types.
 	 */
 	public PacketAdapter(Plugin plugin, Iterable<? extends PacketType> types) {
 		this(params(plugin, Iterables.toArray(types, PacketType.class)));
 	}
-	
+
 	/**
 	 * Initialize a packet listener with the given parameters.
-	 * @param plugin - the plugin.
+	 *
+	 * @param plugin           - the plugin.
 	 * @param listenerPriority - the priority.
-	 * @param types - the packet types.
+	 * @param types            - the packet types.
 	 */
 	public PacketAdapter(Plugin plugin, ListenerPriority listenerPriority, Iterable<? extends PacketType> types) {
 		this(params(plugin, Iterables.toArray(types, PacketType.class)).listenerPriority(listenerPriority));
 	}
-	
+
 	/**
 	 * Initialize a packet listener with the given parameters.
-	 * @param plugin - the plugin.
+	 *
+	 * @param plugin           - the plugin.
 	 * @param listenerPriority - the priority.
-	 * @param types - the packet types.
-	 * @param options - the options.
+	 * @param types            - the packet types.
+	 * @param options          - the options.
 	 */
-	public PacketAdapter(Plugin plugin, ListenerPriority listenerPriority, Iterable<? extends PacketType> types, ListenerOptions... options) {
-		this(params(plugin, Iterables.toArray(types, PacketType.class)).listenerPriority(listenerPriority).options(options));
+	public PacketAdapter(Plugin plugin, ListenerPriority listenerPriority, Iterable<? extends PacketType> types,
+			ListenerOptions... options) {
+		this(
+				params(plugin, Iterables.toArray(types, PacketType.class)).listenerPriority(listenerPriority).options(options));
 	}
-	
+
 	/**
 	 * Initialize a packet listener with the given parameters.
-	 * @param plugin - the plugin.
+	 *
+	 * @param plugin           - the plugin.
 	 * @param listenerPriority - the priority.
-	 * @param types - the packet types.
+	 * @param types            - the packet types.
 	 */
 	public PacketAdapter(Plugin plugin, ListenerPriority listenerPriority, PacketType... types) {
 		this(params(plugin, types).listenerPriority(listenerPriority));
@@ -106,102 +115,69 @@ public abstract class PacketAdapter implements PacketListener {
 	private PacketAdapter(
 			Plugin plugin, ConnectionSide connectionSide, ListenerPriority listenerPriority,
 			GamePhase gamePhase, ListenerOptions[] options, PacketType... packets) {
-		
-		if (plugin == null)
+
+		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 (gamePhase == null)
-			throw new IllegalArgumentException("gamePhase cannot be NULL");
-		if (packets == null)
-			throw new IllegalArgumentException("packets cannot be null");
-		if (options == null)
-			throw new IllegalArgumentException("options cannot be null");
-		
-		ListenerOptions[] serverOptions = options;
-		ListenerOptions[] clientOptions = options;
-		
-		// Special case that allows us to specify optionIntercept().
-		if (connectionSide == ConnectionSide.BOTH) {
-			serverOptions = except(serverOptions, new ListenerOptions[0],
-					ListenerOptions.INTERCEPT_INPUT_BUFFER);
 		}
-		
+		if (connectionSide == null) {
+			throw new IllegalArgumentException("connectionSide cannot be null");
+		}
+		if (listenerPriority == null) {
+			throw new IllegalArgumentException("listenerPriority cannot be null");
+		}
+		if (gamePhase == null) {
+			throw new IllegalArgumentException("gamePhase cannot be NULL");
+		}
+		if (packets == null) {
+			throw new IllegalArgumentException("packets cannot be null");
+		}
+		if (options == null) {
+			throw new IllegalArgumentException("options cannot be null");
+		}
+
 		// Add whitelists
-		if (connectionSide.isForServer())
-			sendingWhitelist = ListeningWhitelist.newBuilder().
-				priority(listenerPriority).
-				types(packets).
-				gamePhase(gamePhase).
-				options(serverOptions).
-				build();
-		
-		if (connectionSide.isForClient())
-			receivingWhitelist = ListeningWhitelist.newBuilder().
-				priority(listenerPriority).
-				types(packets).
-				gamePhase(gamePhase).
-				options(clientOptions).
-				build();
-		
+		if (connectionSide.isForServer()) {
+			sendingWhitelist = ListeningWhitelist.newBuilder()
+					.priority(listenerPriority)
+					.types(packets)
+					.gamePhase(gamePhase)
+					.options(options)
+					.build();
+		}
+
+		if (connectionSide.isForClient()) {
+			receivingWhitelist = ListeningWhitelist.newBuilder()
+					.priority(listenerPriority)
+					.types(packets)
+					.gamePhase(gamePhase)
+					.options(options)
+					.build();
+		}
+
 		this.plugin = plugin;
 		this.connectionSide = connectionSide;
 	}
-	
-	// Remove a given element from an array
-	private static <T> T[] except(T[] values, T[] buffer, T except) {
-		List<T> result = Lists.newArrayList(values);
-		
-		result.remove(except);
-		return result.toArray(buffer);
-	}
-	
-	@Override
-	public void onPacketReceiving(PacketEvent event) {
-		// Lets prevent some bugs
-		throw new IllegalStateException("Override onPacketReceiving to get notifcations of received packets!");
-	}
-	
-	@Override
-	public void onPacketSending(PacketEvent event) {
-		// Lets prevent some bugs
-		throw new IllegalStateException("Override onPacketSending to get notifcations of sent packets!");
-	}
-	
-	@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.
+	 *
 	 * @param listener - the listener.
 	 * @return Name of the associated plugin.
 	 */
 	public static String getPluginName(PacketListener listener) {
 		return getPluginName(listener.getPlugin());
 	}
-	
+
 	/**
 	 * Retrieves the name of the given plugin.
+	 *
 	 * @param plugin - the plugin.
 	 * @return Name of the given plugin.
 	 */
 	public static String getPluginName(Plugin plugin) {
-		if (plugin == null)
+		if (plugin == null) {
 			return "UNKNOWN";
+		}
 
 		try {
 			return plugin.getName();
@@ -209,20 +185,12 @@ public abstract class PacketAdapter implements PacketListener {
 			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);
-	}
-	
+
 	/**
 	 * Construct a helper object for passing parameters to the packet adapter.
 	 * <p>
 	 * This is often simpler and better than passing them directly to each constructor.
+	 *
 	 * @return Helper object.
 	 */
 	public static AdapterParameteters params() {
@@ -233,32 +201,91 @@ public abstract class PacketAdapter implements PacketListener {
 	 * Construct a helper object for passing parameters to the packet adapter.
 	 * <p>
 	 * This is often simpler and better than passing them directly to each constructor.
-	 * @param plugin - the plugin that spawned this listener.
+	 *
+	 * @param plugin  - the plugin that spawned this listener.
 	 * @param packets - the packet types the listener is looking for.
 	 * @return Helper object.
 	 */
 	public static AdapterParameteters params(Plugin plugin, PacketType... packets) {
 		return new AdapterParameteters().plugin(plugin).types(packets);
 	}
-	
+
+	/**
+	 * Determine if the required parameters are set.
+	 */
+	private static AdapterParameteters checkValidity(AdapterParameteters params) {
+		if (params == null) {
+			throw new IllegalArgumentException("params cannot be NULL.");
+		}
+		if (params.plugin == null) {
+			throw new IllegalStateException("Plugin was never set in the parameters.");
+		}
+		if (params.connectionSide == null) {
+			throw new IllegalStateException("Connection side was never set in the parameters.");
+		}
+		if (params.packets == null) {
+			throw new IllegalStateException("Packet IDs was never set in the parameters.");
+		}
+		return params;
+	}
+
+	@Override
+	public void onPacketReceiving(PacketEvent event) {
+		// Lets prevent some bugs
+		throw new IllegalStateException("Override onPacketReceiving to get notifcations of received packets!");
+	}
+
+	@Override
+	public void onPacketSending(PacketEvent event) {
+		// Lets prevent some bugs
+		throw new IllegalStateException("Override onPacketSending to get notifcations of sent packets!");
+	}
+
+	@Override
+	public ListeningWhitelist getReceivingWhitelist() {
+		return receivingWhitelist;
+	}
+
+	@Override
+	public ListeningWhitelist getSendingWhitelist() {
+		return sendingWhitelist;
+	}
+
+	@Override
+	public Plugin getPlugin() {
+		return plugin;
+	}
+
+	@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);
+	}
+
 	/**
 	 * Represents a builder for passing parameters to the packet adapter constructor.
 	 * <p>
 	 * Note: Never make spelling mistakes in a public API!
+	 *
 	 * @author Kristian
 	 */
 	public static class AdapterParameteters {
+
 		private Plugin plugin;
 		private ConnectionSide connectionSide;
 		private PacketType[] packets;
-	
+
 		// Parameters with default values
 		private GamePhase gamePhase = GamePhase.PLAYING;
 		private ListenerOptions[] options = new ListenerOptions[0];
 		private ListenerPriority listenerPriority = ListenerPriority.NORMAL;
-		
+
 		/**
 		 * Set the plugin that spawned this listener. This parameter is required.
+		 *
 		 * @param plugin - the plugin.
 		 * @return This builder, for chaining.
 		 */
@@ -266,9 +293,10 @@ public abstract class PacketAdapter implements PacketListener {
 			this.plugin = Preconditions.checkNotNull(plugin, "plugin cannot be NULL.");
 			return this;
 		}
-		
+
 		/**
 		 * Set the packet types this listener is looking for. This parameter is required.
+		 *
 		 * @param connectionSide - the new packet type.
 		 * @return This builder, for chaining.
 		 */
@@ -276,27 +304,30 @@ public abstract class PacketAdapter implements PacketListener {
 			this.connectionSide = Preconditions.checkNotNull(connectionSide, "connectionside cannot be NULL.");
 			return this;
 		}
-		
+
 		/**
 		 * Set this adapter to also look for client-side packets.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public AdapterParameteters clientSide() {
 			return connectionSide(ConnectionSide.add(connectionSide, ConnectionSide.CLIENT_SIDE));
 		}
-		
+
 		/**
 		 * Set this adapter to also look for server-side packets.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public AdapterParameteters serverSide() {
 			return connectionSide(ConnectionSide.add(connectionSide, ConnectionSide.SERVER_SIDE));
 		}
-		
+
 		/**
 		 * Set the the event priority, where the execution is in ascending order from lowest to highest.
 		 * <p>
 		 * Default is {@link ListenerPriority#NORMAL}.
+		 *
 		 * @param listenerPriority - the new event priority.
 		 * @return This builder, for chaining.
 		 */
@@ -304,11 +335,13 @@ public abstract class PacketAdapter implements PacketListener {
 			this.listenerPriority = Preconditions.checkNotNull(listenerPriority, "listener priority cannot be NULL.");
 			return this;
 		}
-		
+
 		/**
-		 * Set which game phase this listener is active under. This is a hint for ProtocolLib to start intercepting login packets.
+		 * Set which game phase this listener is active under. This is a hint for ProtocolLib to start intercepting login
+		 * packets.
 		 * <p>
 		 * Default is {@link GamePhase#PLAYING}, which will not intercept login packets.
+		 *
 		 * @param gamePhase - the new game phase.
 		 * @return This builder, for chaining.
 		 */
@@ -316,19 +349,22 @@ public abstract class PacketAdapter implements PacketListener {
 			this.gamePhase = Preconditions.checkNotNull(gamePhase, "gamePhase cannot be NULL.");
 			return this;
 		}
-		
+
 		/**
 		 * Set the game phase to {@link GamePhase#LOGIN}, allowing ProtocolLib to intercept login packets.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public AdapterParameteters loginPhase() {
 			return gamePhase(GamePhase.LOGIN);
 		}
-		
+
 		/**
-		 * Set listener options that decide whether or not to intercept the raw packet data as read from the network stream.
+		 * Set listener options that decide whether or not to intercept the raw packet data as read from the network
+		 * stream.
 		 * <p>
 		 * The default is to disable this raw packet interception.
+		 *
 		 * @param options - every option to use.
 		 * @return This builder, for chaining.
 		 */
@@ -338,9 +374,11 @@ public abstract class PacketAdapter implements PacketListener {
 		}
 
 		/**
-		 * Set listener options that decide whether or not to intercept the raw packet data as read from the network stream.
+		 * Set listener options that decide whether or not to intercept the raw packet data as read from the network
+		 * stream.
 		 * <p>
 		 * The default is to disable this raw packet interception.
+		 *
 		 * @param options - every option to use.
 		 * @return This builder, for chaining.
 		 */
@@ -349,9 +387,10 @@ public abstract class PacketAdapter implements PacketListener {
 			this.options = options.toArray(new ListenerOptions[0]);
 			return this;
 		}
-		
+
 		/**
 		 * Add a given option to the current builder.
+		 *
 		 * @param option - the option to add.
 		 * @return This builder, for chaining.
 		 */
@@ -359,34 +398,38 @@ public abstract class PacketAdapter implements PacketListener {
 			if (options == null) {
 				return options(option);
 			} else {
-				Set<ListenerOptions> current = Sets.newHashSet(options);
+				final Set<ListenerOptions> current = Sets.newHashSet(options);
 				current.add(option);
 				return options(current);
 			}
 		}
-		
-		/**
-		 * Set the listener option to {@link ListenerOptions#INTERCEPT_INPUT_BUFFER}, causing ProtocolLib to read the raw packet data from the network stream.
-		 * @return This builder, for chaining.
-		 */
-		public AdapterParameteters optionIntercept() {
-			return addOption(ListenerOptions.INTERCEPT_INPUT_BUFFER);
-		}
 
 		/**
-		 * Set the listener option to {@link ListenerOptions#ASYNC}, indicating that our listener is thread safe.
+		 * Set the listener option to {@link ListenerOptions#ASYNC}, indicating that our outbound listener is thread safe.
 		 * <p>
 		 * This allows ProtocolLib to perform certain optimizations.
+		 *
 		 * @return This builder, for chaining.
 		 */
 		public AdapterParameteters optionAsync() {
 			return addOption(ListenerOptions.ASYNC);
 		}
 
+		/**
+		 * Set the listener option to {@link ListenerOptions#SYNC}, indicating that our inbound listener must be executed
+		 * on the main server thread.
+		 *
+		 * @return This builder, for chaining.
+		 */
+		public AdapterParameteters optionSync() {
+			return addOption(ListenerOptions.SYNC);
+		}
+
 		/**
 		 * Set the packet types the listener is looking for.
 		 * <p>
 		 * This parameter is required.
+		 *
 		 * @param packets - the packet types to look for.
 		 * @return This builder, for chaining.
 		 */
@@ -398,16 +441,18 @@ public abstract class PacketAdapter implements PacketListener {
 				}
 			}
 			this.packets = Preconditions.checkNotNull(packets, "packets cannot be NULL");
-			
-			if (packets.length == 0)
+
+			if (packets.length == 0) {
 				throw new IllegalArgumentException("Passed an empty packet type array.");
+			}
 			return this;
 		}
-		
+
 		/**
 		 * Set the packet types the listener is looking for.
 		 * <p>
 		 * This parameter is required.
+		 *
 		 * @param packets - a set of packet types to look for.
 		 * @return This builder, for chaining.
 		 */
@@ -415,19 +460,4 @@ public abstract class PacketAdapter implements PacketListener {
 			return types(packets.toArray(new PacketType[0]));
 		}
 	}
-	
-	/**
-	 * Determine if the required parameters are set.
-	 */
-	private static AdapterParameteters checkValidity(AdapterParameteters params) {
-		if (params == null)
-			throw new IllegalArgumentException("params cannot be NULL.");
-		if (params.plugin == null)
-			throw new IllegalStateException("Plugin was never set in the parameters.");
-		if (params.connectionSide == null)
-			throw new IllegalStateException("Connection side was never set in the parameters.");
-		if (params.packets == null)
-			throw new IllegalStateException("Packet IDs was never set in the parameters.");
-		return params;
-	}
 }

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

@@ -23,58 +23,61 @@ import java.io.ObjectOutputStream;
 import java.lang.ref.WeakReference;
 import java.util.EventObject;
 
-import org.bukkit.Bukkit;
-import org.bukkit.entity.Player;
-import org.bukkit.event.Cancellable;
-
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.async.AsyncMarker;
 import com.comphenix.protocol.error.PluginContext;
 import com.comphenix.protocol.error.Report;
 import com.comphenix.protocol.error.ReportType;
-import com.comphenix.protocol.injector.server.TemporaryPlayer;
+import com.comphenix.protocol.injector.temporary.TemporaryPlayer;
 import com.google.common.base.Objects;
 import com.google.common.base.Preconditions;
 import com.google.common.collect.HashMultimap;
 import com.google.common.collect.Multimaps;
 import com.google.common.collect.SetMultimap;
 
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+
+import javax.annotation.Nullable;
+
 /**
- * Represents a packet sending or receiving event. Changes to the packet will be
- * reflected in the final version to be sent or received. It is also possible to cancel an event.
+ * Represents a packet sending or receiving event. Changes to the packet will be reflected in the final version to be
+ * sent or received. It is also possible to cancel an event.
+ *
  * @author Kristian
  */
 public class PacketEvent extends EventObject implements Cancellable {
+
 	public static final ReportType REPORT_CHANGING_PACKET_TYPE_IS_CONFUSING = new ReportType(
 			"Plugin %s changed packet type from %s to %s in packet listener. This is confusing for other plugins! (Not an error, though!)");
-	
+
 	private static final SetMultimap<PacketType, PacketType> CHANGE_WARNINGS =
 			Multimaps.synchronizedSetMultimap(HashMultimap.create());
-	
+
 	/**
 	 * Automatically generated by Eclipse.
 	 */
 	private static final long serialVersionUID = -5360289379097430620L;
-	
+	// Network input and output handlers
+	NetworkMarker networkMarker;
 	private transient WeakReference<Player> playerReference;
-
 	private PacketContainer packet;
 	private boolean serverPacket;
 	private boolean cancel;
-	
 	private AsyncMarker asyncMarker;
 	private boolean asynchronous;
-
-	// Network input and output handlers
-	NetworkMarker networkMarker;
-	
 	// Whether or not a packet event is read only
 	private boolean readOnly;
 	private boolean filtered;
-	
+
+	@Nullable
+	private PacketEvent bundle;
+
 	/**
 	 * Use the static constructors to create instances of this event.
+	 *
 	 * @param source - the event source.
 	 */
 	public PacketEvent(Object source) {
@@ -83,32 +86,38 @@ public class PacketEvent extends EventObject implements Cancellable {
 	}
 
 	private PacketEvent(Object source, PacketContainer packet, Player player, boolean serverPacket) {
-		this(source, packet, null, player, serverPacket, true);
+		this(source, packet, null, player, serverPacket, true, null);
 	}
-	
-	private PacketEvent(Object source, PacketContainer packet, NetworkMarker marker, Player player, boolean serverPacket, boolean filtered) {
+
+	private PacketEvent(Object source, PacketContainer packet, NetworkMarker marker, Player player, boolean serverPacket,
+			boolean filtered, @Nullable PacketEvent bundleEvent) {
 		super(source);
+		if(packet == null) {
+			throw new IllegalArgumentException("packet cannot be null");
+		}
 		this.packet = packet;
 		this.playerReference = new WeakReference<>(player);
 		this.networkMarker = marker;
 		this.serverPacket = serverPacket;
 		this.filtered = filtered;
+		this.bundle = bundleEvent;
 	}
-	
-	private PacketEvent(PacketEvent origial, AsyncMarker asyncMarker) {
-		super(origial.source);
-		this.packet = origial.packet;
-		this.playerReference = origial.getPlayerReference();
-		this.cancel = origial.cancel;
-		this.serverPacket = origial.serverPacket;
-		this.filtered = origial.filtered;
-		this.networkMarker = origial.networkMarker;
+
+	private PacketEvent(PacketEvent original, AsyncMarker asyncMarker) {
+		super(original.source);
+		this.packet = original.packet;
+		this.playerReference = original.getPlayerReference();
+		this.cancel = original.cancel;
+		this.serverPacket = original.serverPacket;
+		this.filtered = original.filtered;
+		this.networkMarker = original.networkMarker;
 		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.
@@ -117,9 +126,10 @@ public class PacketEvent extends EventObject implements Cancellable {
 	public static PacketEvent fromClient(Object source, PacketContainer packet, Player client) {
 		return new PacketEvent(source, packet, client, false);
 	}
-	
+
 	/**
 	 * Creates an event representing a client packet transmission.
+	 *
 	 * @param source - the event source.
 	 * @param packet - the packet.
 	 * @param marker - the network marker.
@@ -127,87 +137,114 @@ public class PacketEvent extends EventObject implements Cancellable {
 	 * @return The event.
 	 */
 	public static PacketEvent fromClient(Object source, PacketContainer packet, NetworkMarker marker, Player client) {
-		return new PacketEvent(source, packet, marker, client, false, true);
+		return new PacketEvent(source, packet, marker, client, false, true, null);
 	}
-	
+
 	/**
 	 * Creates an event representing a client packet transmission.
 	 * <p>
 	 * If <i>filtered</i> is FALSE, then this event is only processed by packet monitors.
-	 * @param source - the event source.
-	 * @param packet - the packet.
-	 * @param marker - the network marker.
-	 * @param client - the client that sent the packet.
+	 *
+	 * @param source   - the event source.
+	 * @param packet   - the packet.
+	 * @param marker   - the network marker.
+	 * @param client   - the client that sent the packet.
 	 * @param filtered - whether or not this packet event is processed by every packet listener.
 	 * @return The event.
 	 */
-	public static PacketEvent fromClient(Object source, PacketContainer packet, NetworkMarker marker, Player client, boolean filtered) {
-		return new PacketEvent(source, packet, marker, client, false, filtered);
+	public static PacketEvent fromClient(Object source, PacketContainer packet, NetworkMarker marker, Player client,
+			boolean filtered) {
+		return new PacketEvent(source, packet, marker, client, false, filtered, null);
 	}
-	
+
 	/**
 	 * Creates an event representing a server packet transmission.
-	 * @param source - the event source.
-	 * @param packet - the packet.
+	 *
+	 * @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) {
+	public static PacketEvent fromServer(Object source, PacketContainer packet, Player recipient) {
 		return new PacketEvent(source, packet, recipient, true);
 	}
-	
+
 	/**
 	 * Creates an event representing a server packet transmission.
-	 * @param source - the event source.
-	 * @param packet - the packet.
-	 * @param marker - the network marker.
+	 *
+	 * @param source    - the event source.
+	 * @param packet    - the packet.
+	 * @param marker    - the network marker.
 	 * @param recipient - the client that will receieve the packet.
 	 * @return The event.
 	 */
 	public static PacketEvent fromServer(Object source, PacketContainer packet, NetworkMarker marker, Player recipient) {
-		return new PacketEvent(source, packet, marker, recipient, true, true);
+		return new PacketEvent(source, packet, marker, recipient, true, true, null);
 	}
-	
+
 	/**
 	 * Creates an event representing a server packet transmission.
 	 * <p>
 	 * If <i>filtered</i> is FALSE, then this event is only processed by packet monitors.
-	 * @param source - the event source.
-	 * @param packet - the packet.
-	 * @param marker - the network marker.
+	 *
+	 * @param source    - the event source.
+	 * @param packet    - the packet.
+	 * @param marker    - the network marker.
 	 * @param recipient - the client that will receieve the packet.
-	 * @param filtered - whether or not this packet event is processed by every packet listener.
+	 * @param filtered  - whether or not this packet event is processed by every packet listener.
 	 * @return The event.
 	 */
-	public static PacketEvent fromServer(Object source, PacketContainer packet, NetworkMarker marker, Player recipient, boolean filtered) {
-		return new PacketEvent(source, packet, marker, recipient, true, filtered);
+	public static PacketEvent fromServer(Object source, PacketContainer packet, NetworkMarker marker, Player recipient,
+			boolean filtered) {
+		return fromServer(source, packet, marker, recipient, filtered, null);
 	}
-	
+
+	/**
+	 * Creates an event representing a server packet transmission.
+	 * <p>
+	 * If <i>filtered</i> is FALSE, then this event is only processed by packet monitors.
+	 *
+	 * @param source    - the event source.
+	 * @param packet    - the packet.
+	 * @param marker    - the network marker.
+	 * @param recipient - the client that will receieve the packet.
+	 * @param filtered  - whether this packet event is processed by every packet listener.
+	 * @param bundle    - The corresponding packet event of the bundle if this packet is part of a bundle. Otherwise, null.
+	 * @return The event.
+	 */
+	public static PacketEvent fromServer(Object source, PacketContainer packet, NetworkMarker marker, Player recipient,
+			boolean filtered, @Nullable PacketEvent bundle) {
+		return new PacketEvent(source, packet, marker, recipient, true, filtered, bundle);
+	}
+
 	/**
 	 * Create an asynchronous packet event from a synchronous event and a async marker.
-	 * @param event - the original synchronous event.
+	 *
+	 * @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);
 	}
-	
+
 	/**
 	 * Determine if we are executing the packet event in an asynchronous thread.
 	 * <p>
 	 * If so, you must synchronize all calls to the Bukkit API.
 	 * <p>
-	 * Generally, most server packets are executed on the main thread, whereas client packets
-	 * are all executed asynchronously.
+	 * Generally, most server packets are executed on the main thread, whereas client packets are all executed
+	 * asynchronously.
+	 *
 	 * @return TRUE if we are, FALSE otherwise.
 	 */
 	public boolean isAsync() {
 		return !Bukkit.isPrimaryThread();
 	}
-	
+
 	/**
 	 * Retrieves the packet that will be sent to the player.
+	 *
 	 * @return Packet to send to the player.
 	 */
 	public PacketContainer getPacket() {
@@ -216,14 +253,17 @@ public class PacketEvent extends EventObject implements Cancellable {
 
 	/**
 	 * Replace the packet that will be sent to the player.
+	 *
 	 * @param packet - the packet that will be sent instead.
 	 */
 	public void setPacket(PacketContainer packet) {
-		if (readOnly)
+		if (readOnly) {
 			throw new IllegalStateException("The packet event is read-only.");
-		if (packet == null)
+		}
+		if (packet == null) {
 			throw new IllegalArgumentException("Cannot set packet to NULL. Use setCancelled() instead.");
-		
+		}
+
 		// Change warnings
 		final PacketType oldType = this.packet.getType();
 		final PacketType newType = packet.getType();
@@ -232,53 +272,77 @@ public class PacketEvent extends EventObject implements Cancellable {
 			if (CHANGE_WARNINGS.put(oldType, newType)) {
 				ProtocolLibrary.getErrorReporter().reportWarning(this,
 						Report.newBuilder(REPORT_CHANGING_PACKET_TYPE_IS_CONFUSING).
-						messageParam(PluginContext.getPluginCaller(new Exception()), oldType, newType).
-						build());
+								messageParam(PluginContext.getPluginCaller(new Exception()), oldType, newType).
+								build());
 			}
 		}
 		this.packet = packet;
 	}
-	
+
 	/**
 	 * Retrieves the packet ID.
 	 * <p>
 	 * Deprecated: Use {@link #getPacketType()} instead.
+	 *
 	 * @return The current packet ID.
 	 */
 	@Deprecated
 	public int getPacketID() {
 		return packet.getId();
 	}
-	
+
 	/**
 	 * Retrieve the packet type.
+	 *
 	 * @return The type.
 	 */
 	public PacketType getPacketType() {
 		return packet.getType();
 	}
-	
+
 	/**
 	 * Retrieves whether or not the packet should be cancelled.
+	 *
 	 * @return TRUE if it should be cancelled, FALSE otherwise.
 	 */
 	@Override
 	public boolean isCancelled() {
 		return cancel;
 	}
-	
+
+	/**
+	 * Sets whether or not the packet should be cancelled. Uncancelling is possible.
+	 * <p>
+	 * <b>Warning</b>: A cancelled packet should never be re-transmitted. Use the asynchronous
+	 * packet manager if you need to perform extensive processing. It should also be used if you need to synchronize with
+	 * the main thread.
+	 * <p>
+	 * This ensures that other plugins can work with the same packet.
+	 * <p>
+	 * An asynchronous listener can also delay a packet indefinitely without having to block its thread.
+	 *
+	 * @param cancel - TRUE if it should be cancelled, FALSE otherwise.
+	 */
+	@Override
+	public void setCancelled(boolean cancel) {
+		if (readOnly) {
+			throw new IllegalStateException("The packet event is read-only.");
+		}
+		this.cancel = cancel;
+	}
+
 	/**
 	 * Retrieve the object responsible for managing the serialized input and output of a packet.
 	 * <p>
-	 * Note that the serialized input data is only available for client-side packets, and the output handlers
-	 * can only be applied to server-side packets.
+	 * Note that the serialized input data is only available for client-side packets, and the output handlers can only be
+	 * applied to server-side packets.
+	 *
 	 * @return The network manager.
 	 */
 	public NetworkMarker getNetworkMarker() {
 		if (networkMarker == null) {
 			if (isServerPacket()) {
-				networkMarker = new NetworkMarker.EmptyBufferMarker(
-					serverPacket ? ConnectionSide.SERVER_SIDE : ConnectionSide.CLIENT_SIDE);
+				networkMarker = new NetworkMarker(serverPacket ? ConnectionSide.SERVER_SIDE : ConnectionSide.CLIENT_SIDE, this.getPacketType());
 			} else {
 				throw new IllegalStateException("Add the option ListenerOptions.INTERCEPT_INPUT_BUFFER to your listener.");
 			}
@@ -290,31 +354,12 @@ public class PacketEvent extends EventObject implements Cancellable {
 	 * Update the network manager.
 	 * <p>
 	 * This method is internal - do not call.
+	 *
 	 * @param networkMarker - the new network manager.
 	 */
 	public void setNetworkMarker(NetworkMarker networkMarker) {
 		this.networkMarker = Preconditions.checkNotNull(networkMarker, "marker cannot be NULL");
 	}
-	
-	/**
-	 * Sets whether or not the packet should be cancelled. Uncancelling is possible.
-	 * <p>
-	 * <b>Warning</b>: A cancelled packet should never be re-transmitted. Use the asynchronous
-	 * packet manager if you need to perform extensive processing. It should also be used
-	 * if you need to synchronize with the main thread.
-	 * <p>
-	 * This ensures that other plugins can work with the same packet.
-	 * <p>
-	 * An asynchronous listener can also delay a packet indefinitely without having to block its thread.
-	 * 
-	 * @param cancel - TRUE if it should be cancelled, FALSE otherwise.
-	 */
-	@Override
-	public void setCancelled(boolean cancel) {
-		if (readOnly)
-			throw new IllegalStateException("The packet event is read-only.");
-		this.cancel = cancel;
-	}
 
 	private WeakReference<Player> getPlayerReference() {
 		Player player = playerReference.get();
@@ -332,6 +377,7 @@ public class PacketEvent extends EventObject implements Cancellable {
 
 	/**
 	 * Retrieves the player that has sent the packet or is receiving it.
+	 *
 	 * @return The player associated with this event.
 	 */
 	public Player getPlayer() {
@@ -350,7 +396,7 @@ public class PacketEvent extends EventObject implements Cancellable {
 	 *     <li>kickPlayer</li>
 	 *     <li>isOnline</li>
 	 * </ul>
-	 *
+	 * <p>
 	 * Anything else will throw an UnsupportedOperationException. Use this check before calling other methods when
 	 * dealing with packets early in the login sequence or if you get the aforementioned exception.
 	 *
@@ -359,27 +405,29 @@ public class PacketEvent extends EventObject implements Cancellable {
 	public boolean isPlayerTemporary() {
 		return getPlayer() instanceof TemporaryPlayer;
 	}
-	
+
 	/**
 	 * Determine if this packet is filtered by every packet listener.
 	 * <p>
 	 * If not, it will only be intercepted by monitor packets.
+	 *
 	 * @return TRUE if it is, FALSE otherwise.
 	 */
 	public boolean isFiltered() {
 		return filtered;
 	}
-	
+
 	/**
 	 * 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>
@@ -387,54 +435,62 @@ public class PacketEvent extends EventObject implements Cancellable {
 	 * 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.
+	 * 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())
+		if (isAsynchronous()) {
 			throw new IllegalStateException("The marker is immutable for asynchronous events");
-		if (readOnly)
+		}
+		if (readOnly) {
 			throw new IllegalStateException("The packet event is read-only.");
+		}
 		this.asyncMarker = asyncMarker;
 	}
 
 	/**
 	 * Determine if the current packet event is read only.
 	 * <p>
-	 * This is used to ensure that a monitor listener doesn't accidentally alter the state of the event. However,
-	 * it is still possible to modify the packet itself, as it would require too many resources to verify its integrity.
+	 * This is used to ensure that a monitor listener doesn't accidentally alter the state of the event. However, it is
+	 * still possible to modify the packet itself, as it would require too many resources to verify its integrity.
 	 * <p>
 	 * Thus, the packet is considered immutable if the packet event is read only.
+	 *
 	 * @return TRUE if it is, FALSE otherwise.
 	 */
 	public boolean isReadOnly() {
 		return readOnly;
 	}
-	
+
 	/**
 	 * Set the read-only state of this packet event.
 	 * <p>
 	 * This will be reset for every packet listener.
+	 *
 	 * @param readOnly - TRUE if it is read-only, FALSE otherwise.
 	 */
 	public void setReadOnly(boolean readOnly) {
 		this.readOnly = readOnly;
 	}
-	
+
 	/**
 	 * Determine if the packet event has been executed asynchronously or not.
+	 *
 	 * @return TRUE if this packet event is asynchronous, FALSE otherwise.
 	 */
 	public boolean isAsynchronous() {
@@ -445,14 +501,16 @@ public class PacketEvent extends EventObject implements Cancellable {
 	 * Schedule a packet for sending or receiving after the current packet event is successful.
 	 * <p>
 	 * The packet will be added to {@link NetworkMarker#getScheduledPackets()}.
+	 *
 	 * @param scheduled - the packet to transmit or receive.
 	 */
 	public void schedule(ScheduledPacket scheduled) {
 		getNetworkMarker().getScheduledPackets().add(scheduled);
 	}
-	
+
 	/**
 	 * Unschedule a specific packet.
+	 *
 	 * @param scheduled - the scheduled packet.
 	 * @return TRUE if it was unscheduled, FALSE otherwise.
 	 */
@@ -462,9 +520,9 @@ public class PacketEvent extends EventObject implements Cancellable {
 		}
 		return false;
 	}
-	
+
 	private void writeObject(ObjectOutputStream output) throws IOException {
-	    // Default serialization
+		// Default serialization
 		output.defaultWriteObject();
 
 		// Write the name of the player (or NULL if it's not set)
@@ -473,17 +531,26 @@ public class PacketEvent extends EventObject implements Cancellable {
 	}
 
 	private void readObject(ObjectInputStream input) throws ClassNotFoundException, IOException {
-	    // Default deserialization
+		// Default deserialization
 		input.defaultReadObject();
 
 		final SerializedOfflinePlayer serialized = (SerializedOfflinePlayer) input.readObject();
-		
+
 		// Better than nothing
-	    if (serialized != null) {
-	    	// Store it, to prevent weak reference from cleaning up the reference
-		    Player offlinePlayer = serialized.getPlayer();
-	    	playerReference = new WeakReference<>(offlinePlayer);
-	    }
+		if (serialized != null) {
+			// Store it, to prevent weak reference from cleaning up the reference
+			Player offlinePlayer = serialized.getPlayer();
+			playerReference = new WeakReference<>(offlinePlayer);
+		}
+	}
+
+	/**
+	 * Returns the packet event corresponding to the bundle if this packet is sent as a part of a bundle, t. Otherwise, null.
+	 * @return Corresponding packet event or null.
+	 */
+	@Nullable
+	public PacketEvent getBundle() {
+		return bundle;
 	}
 
 	@Override

src/main/java/com/comphenix/protocol/events/PacketListener.java

@@ -23,49 +23,53 @@ import org.bukkit.plugin.Plugin;
  * Represents a listener that receives notifications when packets are sending or being received.
  * <p>
  * Use {@link PacketAdapter} for a simple wrapper around this interface.
+ *
  * @author Kristian
  */
 public interface PacketListener {
-	
+
 	/**
 	 * Invoked right before a packet is transmitted from the server to the client.
 	 * <p>
 	 * Note that the packet may be replaced, if needed.
 	 * <p>
-	 * This method is executed on the main thread in 1.6.4 and earlier, and thus the Bukkit API is safe to use.
-	 * <p>
-	 * In Minecraft 1.7.2 and later, this method MAY be executed asynchronously, but only if {@link ListenerOptions#ASYNC}
-	 * have been specified in the listener. This is off by default.
+	 * This method is executed on the main server thread by default. However, some spigot forks (like paper) schedule
+	 * specific packets off the main thread. If the {@link ListenerOptions#ASYNC} option is not specified any invocation
+	 * of this method will be on the main server thread.
+	 *
 	 * @param event - the packet that should be sent.
 	 */
-	public void onPacketSending(PacketEvent event);
+	void onPacketSending(PacketEvent event);
 
 	/**
 	 * Invoked right before a received packet from a client is being processed.
 	 * <p>
-	 * <b>WARNING</b>: <br>
-	 * This method will be called <i>asynchronously</i>! You should synchronize with the main
-	 * thread using {@link org.bukkit.scheduler.BukkitScheduler#scheduleSyncDelayedTask(Plugin, Runnable, long) scheduleSyncDelayedTask}
-	 * if you need to call the Bukkit API.
+	 * This method will be called asynchronously (or on the netty event loop) by default. If the
+	 * {@link ListenerOptions#SYNC} option is specified, the invocation of this method will be synced to the main server
+	 * thread which might cause issues due to delayed packets.
+	 *
 	 * @param event - the packet that has been received.
 	 */
-	public void onPacketReceiving(PacketEvent event);
-	
+	void onPacketReceiving(PacketEvent event);
+
 	/**
 	 * Retrieve which packets sent by the server this listener will observe.
+	 *
 	 * @return List of server packets to observe, along with the priority.
 	 */
-	public ListeningWhitelist getSendingWhitelist();
-	
+	ListeningWhitelist getSendingWhitelist();
+
 	/**
 	 * Retrieve which packets sent by the client this listener will observe.
+	 *
 	 * @return List of server packets to observe, along with the priority.
 	 */
-	public ListeningWhitelist getReceivingWhitelist();
-	
+	ListeningWhitelist getReceivingWhitelist();
+
 	/**
 	 * Retrieve the plugin that created list packet listener.
+	 *
 	 * @return The plugin, or NULL if not available.
 	 */
-	public Plugin getPlugin();
+	Plugin getPlugin();
 }

src/main/java/com/comphenix/protocol/events/PacketMetadata.java

@@ -1,142 +1,143 @@
-/**
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2017 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.events;
-
-import com.google.common.cache.Cache;
-import com.google.common.cache.CacheBuilder;
-import org.apache.commons.lang.Validate;
-
-import java.util.*;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.TimeUnit;
-
-/**
- * Stores and retrieves metadata for applicable packet objects.
- * @author dmulloy2
- */
-class PacketMetadata {
-
-	private static class MetaObject<T> {
-		private final String key;
-		private final T value;
-
-		private MetaObject(String key, T value) {
-			this.key = key;
-			this.value = value;
-		}
-
-		@Override
-		public int hashCode() {
-			return Objects.hash(key, value);
-		}
-
-		@Override
-		public boolean equals(Object o) {
-			if (o == this) return true;
-
-			if (o instanceof MetaObject) {
-				MetaObject that = (MetaObject) o;
-				return that.key.equals(this.key) &&
-			           that.value.equals(this.value);
-			}
-
-			return false;
-		}
-
-		@Override
-		public String toString() {
-			return "MetaObject[" + key + "=" + value + "]";
-		}
-	}
-
-	// Packet meta cache
-	private static Cache<Object, List<MetaObject>> META_CACHE;
-
-	public static <T> Optional<T> get(Object packet, String key) {
-		Validate.notNull(key, "Null keys are not permitted!");
-
-		if (META_CACHE == null) {
-			return Optional.empty();
-		}
-
-		List<MetaObject> meta = META_CACHE.getIfPresent(packet);
-		if (meta == null) {
-			return Optional.empty();
-		}
-
-		for (MetaObject object : meta) {
-			if (object.key.equals(key)) {
-				return Optional.of((T) object.value);
-			}
-		}
-
-		return Optional.empty();
-	}
-
-	private static void createCache() {
-		META_CACHE = CacheBuilder
-				.newBuilder()
-				.expireAfterWrite(1, TimeUnit.MINUTES)
-				.build();
-	}
-
-	public static <T> void set(Object packet, String key, T value) {
-		Validate.notNull(key, "Null keys are not permitted!");
-
-		if (META_CACHE == null) {
-			createCache();
-		}
-
-		List<MetaObject> packetMeta;
-
-		try {
-			packetMeta = META_CACHE.get(packet, ArrayList::new);
-		} catch (ExecutionException ex) {
-			// Not possible, but let's humor the array list constructor having an issue
-			packetMeta = new ArrayList<>();
-		}
-
-		packetMeta.removeIf(meta -> meta.key.equals(key));
-		packetMeta.add(new MetaObject<>(key, value));
-		META_CACHE.put(packet, packetMeta);
-	}
-
-	public static <T> Optional<T> remove(Object packet, String key) {
-		Validate.notNull(key, "Null keys are not permitted!");
-
-		if (META_CACHE == null) {
-			return Optional.empty();
-		}
-
-		List<MetaObject> packetMeta = META_CACHE.getIfPresent(packet);
-		if (packetMeta == null) {
-			return Optional.empty();
-		}
-
-		Optional<T> value = Optional.empty();
-		Iterator<MetaObject> iter = packetMeta.iterator();
-		while (iter.hasNext()) {
-			MetaObject meta = iter.next();
-			if (meta.key.equals(key)) {
-				value = Optional.of((T) meta.value);
-				iter.remove();
-			}
-		}
-
-		return value;
-	}
-}
+/**
+ *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
+ *  Copyright (C) 2017 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.events;
+
+import java.util.*;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+
+import com.google.common.cache.Cache;
+import com.google.common.cache.CacheBuilder;
+
+import org.apache.commons.lang.Validate;
+
+/**
+ * Stores and retrieves metadata for applicable packet objects.
+ * @author dmulloy2
+ */
+class PacketMetadata {
+
+	private static class MetaObject<T> {
+		private final String key;
+		private final T value;
+
+		private MetaObject(String key, T value) {
+			this.key = key;
+			this.value = value;
+		}
+
+		@Override
+		public int hashCode() {
+			return Objects.hash(key, value);
+		}
+
+		@Override
+		public boolean equals(Object o) {
+			if (o == this) return true;
+
+			if (o instanceof MetaObject) {
+				MetaObject that = (MetaObject) o;
+				return that.key.equals(this.key) &&
+			           that.value.equals(this.value);
+			}
+
+			return false;
+		}
+
+		@Override
+		public String toString() {
+			return "MetaObject[" + key + "=" + value + "]";
+		}
+	}
+
+	// Packet meta cache
+	private static Cache<Object, List<MetaObject>> META_CACHE;
+
+	public static <T> Optional<T> get(Object packet, String key) {
+		Validate.notNull(key, "Null keys are not permitted!");
+
+		if (META_CACHE == null) {
+			return Optional.empty();
+		}
+
+		List<MetaObject> meta = META_CACHE.getIfPresent(packet);
+		if (meta == null) {
+			return Optional.empty();
+		}
+
+		for (MetaObject object : meta) {
+			if (object.key.equals(key)) {
+				return Optional.of((T) object.value);
+			}
+		}
+
+		return Optional.empty();
+	}
+
+	private static void createCache() {
+		META_CACHE = CacheBuilder
+				.newBuilder()
+				.expireAfterWrite(1, TimeUnit.MINUTES)
+				.build();
+	}
+
+	public static <T> void set(Object packet, String key, T value) {
+		Validate.notNull(key, "Null keys are not permitted!");
+
+		if (META_CACHE == null) {
+			createCache();
+		}
+
+		List<MetaObject> packetMeta;
+
+		try {
+			packetMeta = META_CACHE.get(packet, ArrayList::new);
+		} catch (ExecutionException ex) {
+			// Not possible, but let's humor the array list constructor having an issue
+			packetMeta = new ArrayList<>();
+		}
+
+		packetMeta.removeIf(meta -> meta.key.equals(key));
+		packetMeta.add(new MetaObject<>(key, value));
+		META_CACHE.put(packet, packetMeta);
+	}
+
+	public static <T> Optional<T> remove(Object packet, String key) {
+		Validate.notNull(key, "Null keys are not permitted!");
+
+		if (META_CACHE == null) {
+			return Optional.empty();
+		}
+
+		List<MetaObject> packetMeta = META_CACHE.getIfPresent(packet);
+		if (packetMeta == null) {
+			return Optional.empty();
+		}
+
+		Optional<T> value = Optional.empty();
+		Iterator<MetaObject> iter = packetMeta.iterator();
+		while (iter.hasNext()) {
+			MetaObject meta = iter.next();
+			if (meta.key.equals(key)) {
+				value = Optional.of((T) meta.value);
+				iter.remove();
+			}
+		}
+
+		return value;
+	}
+}

src/main/java/com/comphenix/protocol/events/PacketOutputHandler.java

@@ -28,7 +28,7 @@ public interface PacketOutputHandler {
 	 * Note that the buffer is initially filled with the output from the default write method.
 	 * <p>
 	 * In Minecraft 1.6.4, the header is always excluded, whereas it MUST be included in Minecraft 1.7.2. Call 
-	 * {@link NetworkMarker#requireOutputHeader()} to determine this.
+	 * NetworkMarker#requireOutputHeader() to determine this.
 	 * @param event - the packet that will be outputted.
 	 * @param buffer - the data that is currently scheduled to be outputted.
 	 * @return The modified byte array to write. NULL is not permitted.

src/main/java/com/comphenix/protocol/events/PacketPostAdapter.java

@@ -1,9 +1,9 @@
 package com.comphenix.protocol.events;
 
-import org.bukkit.plugin.Plugin;
-
 import com.google.common.base.Preconditions;
 
+import org.bukkit.plugin.Plugin;
+
 /**
  * Represents an adapter version of a post listener.
  * @author Kristian

src/main/java/com/comphenix/protocol/events/ScheduledPacket.java

@@ -1,14 +1,12 @@
 package com.comphenix.protocol.events;
 
-import java.lang.reflect.InvocationTargetException;
-
-import org.bukkit.entity.Player;
-
 import com.comphenix.protocol.PacketStream;
 import com.comphenix.protocol.PacketType.Sender;
 import com.comphenix.protocol.ProtocolLibrary;
 import com.google.common.base.Preconditions;
 
+import org.bukkit.entity.Player;
+
 /**
  * Represents a packet that is scheduled for transmission at a later stage.
  * @author Kristian
@@ -121,17 +119,11 @@ public class ScheduledPacket {
 	 */
 	public void schedule(PacketStream stream) {
 		Preconditions.checkNotNull(stream, "stream cannot be NULL");
-		
-		try {
-			if (getSender() == Sender.CLIENT) {
-				stream.recieveClientPacket(getTarget(), getPacket(), isFiltered());
-			} else {
-				stream.sendServerPacket(getTarget(), getPacket(), isFiltered());
-			}
-		} catch (InvocationTargetException e) {
-			throw new RuntimeException("Cannot send packet " + this + " to " + stream);
-		} catch (IllegalAccessException e) {
-			throw new RuntimeException("Cannot send packet " + this + " to " + stream);
+
+		if (getSender() == Sender.CLIENT) {
+			stream.receiveClientPacket(getTarget(), getPacket(), isFiltered());
+		} else {
+			stream.sendServerPacket(getTarget(), getPacket(), isFiltered());
 		}
 	}
 

src/main/java/com/comphenix/protocol/events/SerializedOfflinePlayer.java

@@ -26,7 +26,16 @@ import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 import java.util.Map;
 import java.util.UUID;
-import java.util.function.Function;
+import java.util.concurrent.ConcurrentHashMap;
+
+import com.comphenix.protocol.reflect.accessors.Accessors;
+import com.comphenix.protocol.reflect.accessors.MethodAccessor;
+import com.comphenix.protocol.utility.ByteBuddyFactory;
+
+import org.bukkit.*;
+import org.bukkit.entity.EntityType;
+import org.bukkit.entity.Player;
+import org.bukkit.profile.PlayerProfile;
 
 import net.bytebuddy.description.ByteCodeElement;
 import net.bytebuddy.description.modifier.Visibility;
@@ -36,18 +45,13 @@ import net.bytebuddy.implementation.FieldAccessor;
 import net.bytebuddy.implementation.InvocationHandlerAdapter;
 import net.bytebuddy.implementation.MethodCall;
 import net.bytebuddy.implementation.MethodDelegation;
+import net.bytebuddy.implementation.bind.annotation.AllArguments;
+import net.bytebuddy.implementation.bind.annotation.Origin;
 import net.bytebuddy.implementation.bind.annotation.FieldValue;
-import net.bytebuddy.implementation.bind.annotation.Pipe;
 import net.bytebuddy.implementation.bind.annotation.RuntimeType;
 import net.bytebuddy.matcher.ElementMatcher;
 import net.bytebuddy.matcher.ElementMatchers;
 
-import org.bukkit.*;
-import org.bukkit.entity.EntityType;
-import org.bukkit.entity.Player;
-
-import com.comphenix.protocol.utility.ByteBuddyFactory;
-
 /**
  * Represents a player object that can be serialized by Java.
  * 
@@ -162,6 +166,11 @@ class SerializedOfflinePlayer implements OfflinePlayer, Serializable {
 
 	public void setStatistic(Statistic statistic, EntityType entityType, int i) { }
 
+	@Override
+	public Location getLastDeathLocation() {
+		return null;
+	}
+
 	@Override
 	public long getFirstPlayed() {
 		return firstPlayed;
@@ -176,7 +185,12 @@ class SerializedOfflinePlayer implements OfflinePlayer, Serializable {
 	public UUID getUniqueId() {
 		return uuid;
 	}
-	
+
+	@Override
+	public PlayerProfile getPlayerProfile() {
+		return null;
+	}
+
 	@Override
 	public String getName() {
 		return name;
@@ -278,18 +292,33 @@ class SerializedOfflinePlayer implements OfflinePlayer, Serializable {
 		for (int idx = 0; idx < offlinePlayerMethods.length; ++idx)
 			methodNames[idx] = offlinePlayerMethods[idx].getName();
 
+		final Map<Method, MethodAccessor> accessorCache = new ConcurrentHashMap<>();
 		final ElementMatcher.Junction<ByteCodeElement> forwardedMethods = ElementMatchers.namedOneOf(methodNames);
 
 		try {
-			final MethodDelegation forwarding = MethodDelegation.withDefaultConfiguration()
-					.withBinders(Pipe.Binder.install(Function.class))
-					.to(new Object() {
-						@RuntimeType
-						public Object intercept(@Pipe Function<OfflinePlayer, Object> pipe,
-												@FieldValue("offlinePlayer") OfflinePlayer proxy) {
-							return pipe.apply(proxy);
+			final MethodDelegation forwarding = MethodDelegation.withDefaultConfiguration().to(new Object() {
+				@RuntimeType
+				public Object intercept(
+						@Origin Method calledMethod,
+						@AllArguments Object[] args,
+						@FieldValue("offlinePlayer") OfflinePlayer proxy
+				) {
+					MethodAccessor accessor = accessorCache.computeIfAbsent(calledMethod, method -> {
+						// special case - some methods (like getName) are defined in OfflinePlayer as well
+						// as the online Player class. This causes cast exceptions if we try to invoke the method on
+						// the online player with our proxy. Prevent that
+						if (OfflinePlayer.class.isAssignableFrom(method.getDeclaringClass())) {
+							return Accessors.getMethodAccessor(
+									OfflinePlayer.class,
+									method.getName(),
+									method.getParameterTypes());
+						} else {
+							return Accessors.getMethodAccessor(method);
 						}
 					});
+					return accessor.invoke(proxy, args);
+				}
+			});
 
 			final InvocationHandlerAdapter throwException = InvocationHandlerAdapter.of((obj, method, args) -> {
 					throw new UnsupportedOperationException(

src/main/java/com/comphenix/protocol/injector/BukkitUnwrapper.java

@@ -17,25 +17,23 @@
 
 package com.comphenix.protocol.injector;
 
-import java.lang.reflect.Field;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-import java.util.Collection;
-import java.util.Map;
-import java.util.concurrent.ConcurrentHashMap;
-
-import org.bukkit.Bukkit;
-import org.bukkit.entity.Player;
-
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.error.Report;
 import com.comphenix.protocol.error.ReportType;
 import com.comphenix.protocol.injector.PacketConstructor.Unwrapper;
-import com.comphenix.protocol.reflect.FieldUtils;
+import com.comphenix.protocol.reflect.accessors.Accessors;
+import com.comphenix.protocol.reflect.accessors.FieldAccessor;
 import com.comphenix.protocol.reflect.instances.DefaultInstances;
 import com.comphenix.protocol.utility.MinecraftReflection;
 import com.google.common.primitives.Primitives;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.Collection;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
 
 /**
  * Represents an object capable of converting wrapped Bukkit objects into NMS objects.
@@ -45,123 +43,136 @@ import com.google.common.primitives.Primitives;
  * <li>org.bukkit.entity.Player to net.minecraft.server.EntityPlayer</li>
  * <li>org.bukkit.World to net.minecraft.server.WorldServer</li>
  * </ul>
- * 
+ *
  * @author Kristian
  */
 public class BukkitUnwrapper implements Unwrapper {
-	private static BukkitUnwrapper DEFAULT;
 
 	public static final ReportType REPORT_ILLEGAL_ARGUMENT = new ReportType("Illegal argument.");
 	public static final ReportType REPORT_SECURITY_LIMITATION = new ReportType("Security limitation.");
 	public static final ReportType REPORT_CANNOT_FIND_UNWRAP_METHOD = new ReportType("Cannot find method.");
-	
 	public static final ReportType REPORT_CANNOT_READ_FIELD_HANDLE = new ReportType("Cannot read field 'handle'.");
-	
-	private static Map<Class<?>, Unwrapper> unwrapperCache = new ConcurrentHashMap<Class<?>, Unwrapper>();
-	
+
+	private static final Map<Class<?>, Unwrapper> UNWRAPPER_CACHE = new ConcurrentHashMap<Class<?>, Unwrapper>();
+	private static BukkitUnwrapper DEFAULT;
+
 	// The current error reporter
 	private final ErrorReporter reporter;
-	
-	/**
-	 * Retrieve the default instance of the Bukkit unwrapper.
-	 * @return The default instance.
-	 */
-	public static BukkitUnwrapper getInstance() {
-		ErrorReporter currentReporter = ProtocolLibrary.getErrorReporter();
-		
-		// Also recreate the unwrapper if the error reporter has changed
-		if (DEFAULT == null || DEFAULT.reporter != currentReporter) {
-			DEFAULT = new BukkitUnwrapper(currentReporter);
-		}
-		return DEFAULT;
-	}
-	
+
 	/**
 	 * Construct a new Bukkit unwrapper with ProtocolLib's default error reporter.
 	 */
 	public BukkitUnwrapper() {
 		this(ProtocolLibrary.getErrorReporter());
 	}
-	
+
 	/**
 	 * Construct a new Bukkit unwrapper with the given error reporter.
+	 *
 	 * @param reporter - the error reporter to use.
 	 */
 	public BukkitUnwrapper(ErrorReporter reporter) {
-		 this.reporter = reporter;
+		this.reporter = reporter;
 	}
-	
+
+	/**
+	 * Retrieve the default instance of the Bukkit unwrapper.
+	 *
+	 * @return The default instance.
+	 */
+	public static BukkitUnwrapper getInstance() {
+		ErrorReporter currentReporter = ProtocolLibrary.getErrorReporter();
+
+		// Also recreate the unwrapper if the error reporter has changed
+		if (DEFAULT == null || DEFAULT.reporter != currentReporter) {
+			DEFAULT = new BukkitUnwrapper(currentReporter);
+		}
+		return DEFAULT;
+	}
+
+	private static Class<?> checkClass(Class<?> input, Class<?> expected, Class<?> result) {
+		if (expected.isAssignableFrom(input)) {
+			return result;
+		}
+		return null;
+	}
+
 	@SuppressWarnings("unchecked")
 	@Override
 	public Object unwrapItem(Object wrappedObject) {
 		// Special case
-		if (wrappedObject == null)
+		if (wrappedObject == null) {
 			return null;
+		}
 		Class<?> currentClass = PacketConstructor.getClass(wrappedObject);
-		
+
 		// No need to unwrap primitives
-		if (currentClass.isPrimitive() || currentClass.equals(String.class))
+		if (currentClass.isPrimitive() || currentClass.equals(String.class)) {
 			return null;
-		
+		}
+
 		// Next, check for types that doesn't have a getHandle()
 		if (wrappedObject instanceof Collection) {
 			return handleCollection((Collection<Object>) wrappedObject);
 		} else if (Primitives.isWrapperType(currentClass) || wrappedObject instanceof String) {
 			return null;
 		}
-		
+
 		Unwrapper specificUnwrapper = getSpecificUnwrapper(currentClass);
-		
+
 		// Retrieve the handle
-		if (specificUnwrapper != null)
+		if (specificUnwrapper != null) {
 			return specificUnwrapper.unwrapItem(wrappedObject);
-		else
+		} else {
 			return null;
+		}
 	}
-	
+
 	// Handle a collection of items
 	private Object handleCollection(Collection<Object> wrappedObject) {
-		
+
 		@SuppressWarnings("unchecked")
 		Collection<Object> copy = DefaultInstances.DEFAULT.getDefault(wrappedObject.getClass());
-		
+
 		if (copy != null) {
 			// Unwrap every element
 			for (Object element : wrappedObject) {
 				copy.add(unwrapItem(element));
 			}
 			return copy;
-			
+
 		} else {
 			// Impossible
 			return null;
 		}
 	}
-	
+
 	/**
 	 * Retrieve a cached class unwrapper for the given class.
+	 *
 	 * @param type - the type of the class.
 	 * @return An unwrapper for the given class.
 	 */
 	private Unwrapper getSpecificUnwrapper(final Class<?> type) {
 		// See if we're already determined this
-		if (unwrapperCache.containsKey(type)) {
+		if (UNWRAPPER_CACHE.containsKey(type)) {
 			// We will never remove from the cache, so this ought to be thread safe
-			return unwrapperCache.get(type);
+			return UNWRAPPER_CACHE.get(type);
 		}
-		
+
 		try {
 			final Method find = type.getMethod("getHandle");
-			
+
 			// It's thread safe, as getMethod should return the same handle
 			Unwrapper methodUnwrapper = new Unwrapper() {
 				@Override
 				public Object unwrapItem(Object wrappedObject) {
 					try {
-						if (wrappedObject instanceof Class)
+						if (wrappedObject instanceof Class) {
 							return checkClass((Class<?>) wrappedObject, type, find.getReturnType());
+						}
 						return find.invoke(wrappedObject);
-						
+
 					} catch (IllegalArgumentException e) {
 						reporter.reportDetailed(this,
 								Report.newBuilder(REPORT_ILLEGAL_ARGUMENT).error(e).callerParam(wrappedObject, find)
@@ -173,14 +184,14 @@ public class BukkitUnwrapper implements Unwrapper {
 						// This is really bad
 						throw new RuntimeException("Minecraft error.", e);
 					}
-					
+
 					return null;
 				}
 			};
-			
-			unwrapperCache.put(type, methodUnwrapper);
+
+			UNWRAPPER_CACHE.put(type, methodUnwrapper);
 			return methodUnwrapper;
-			
+
 		} catch (SecurityException e) {
 			reporter.reportDetailed(this,
 					Report.newBuilder(REPORT_SECURITY_LIMITATION).error(e).callerParam(type)
@@ -188,16 +199,18 @@ public class BukkitUnwrapper implements Unwrapper {
 		} catch (NoSuchMethodException e) {
 			// Maybe it's a proxy?
 			Unwrapper proxyUnwrapper = getProxyUnwrapper(type);
-			if (proxyUnwrapper != null)
+			if (proxyUnwrapper != null) {
 				return proxyUnwrapper;
+			}
 
 			// Try getting the field unwrapper too
 			Unwrapper fieldUnwrapper = getFieldUnwrapper(type);
-			if (fieldUnwrapper != null)
+			if (fieldUnwrapper != null) {
 				return fieldUnwrapper;
-			else
+			} else {
 				reporter.reportDetailed(this,
 						Report.newBuilder(REPORT_CANNOT_FIND_UNWRAP_METHOD).error(e).callerParam(type));
+			}
 		}
 
 		// Default method
@@ -211,22 +224,19 @@ public class BukkitUnwrapper implements Unwrapper {
 			if (Player.class.isAssignableFrom(type)) {
 				final Method getHandle = MinecraftReflection.getCraftPlayerClass().getMethod("getHandle");
 
-				Unwrapper unwrapper = new Unwrapper() {
-					@Override
-					public Object unwrapItem(Object wrapped) {
+				Unwrapper unwrapper = wrapped -> {
+					try {
+						return getHandle.invoke(((Player) wrapped).getPlayer());
+					} catch (Throwable ex) {
 						try {
-							return getHandle.invoke(((Player) wrapped).getPlayer());
-						} catch (Throwable ex) {
-							try {
-								return getHandle.invoke(Bukkit.getPlayer(((Player) wrapped).getUniqueId()));
-							} catch (ReflectiveOperationException ex1) {
-								throw new RuntimeException("Failed to unwrap proxy " + wrapped, ex);
-							}
+							return getHandle.invoke(Bukkit.getPlayer(((Player) wrapped).getUniqueId()));
+						} catch (ReflectiveOperationException ex1) {
+							throw new RuntimeException("Failed to unwrap proxy " + wrapped, ex);
 						}
 					}
 				};
 
-				unwrapperCache.put(type, unwrapper);
+				UNWRAPPER_CACHE.put(type, unwrapper);
 				return unwrapper;
 			}
 		} catch (Throwable ignored) {
@@ -237,46 +247,42 @@ public class BukkitUnwrapper implements Unwrapper {
 
 	/**
 	 * Retrieve a cached unwrapper using the handle field.
+	 *
 	 * @param type - a cached field unwrapper.
 	 * @return The cached field unwrapper.
 	 */
 	private Unwrapper getFieldUnwrapper(final Class<?> type) {
-		final Field find = FieldUtils.getField(type, "handle", true);
-		
 		// See if we succeeded
-		if (find != null) {
+		FieldAccessor accessor = Accessors.getFieldAccessorOrNull(type, "handle", null);
+		if (accessor != null) {
 			Unwrapper fieldUnwrapper = new Unwrapper() {
 				@Override
 				public Object unwrapItem(Object wrappedObject) {
 					try {
-						if (wrappedObject instanceof Class)
-							return checkClass((Class<?>) wrappedObject, type, find.getType());
-						return FieldUtils.readField(find, wrappedObject, true);
-					} catch (IllegalAccessException e) {
+						if (wrappedObject instanceof Class) {
+							return checkClass((Class<?>) wrappedObject, type, accessor.getField().getType());
+						}
+
+						return accessor.get(wrappedObject);
+					} catch (IllegalStateException e) {
 						reporter.reportDetailed(this,
-								Report.newBuilder(REPORT_CANNOT_READ_FIELD_HANDLE).error(e).callerParam(wrappedObject, find)
+								Report.newBuilder(REPORT_CANNOT_READ_FIELD_HANDLE).error(e)
+										.callerParam(wrappedObject, accessor.getField())
 						);
 						return null;
 					}
 				}
 			};
-			
-			unwrapperCache.put(type, fieldUnwrapper);
+
+			UNWRAPPER_CACHE.put(type, fieldUnwrapper);
 			return fieldUnwrapper;
-			
+
 		} else {
 			// Inform about this too
 			reporter.reportDetailed(this,
-					Report.newBuilder(REPORT_CANNOT_READ_FIELD_HANDLE).callerParam(find)
+					Report.newBuilder(REPORT_CANNOT_READ_FIELD_HANDLE).callerParam(type)
 			);
 			return null;
 		}
 	}
-
-	private static Class<?> checkClass(Class<?> input, Class<?> expected, Class<?> result) {
-		if (expected.isAssignableFrom(input)) {
-			return result;
-		}
-		return null;
-	}
 }

src/main/java/com/comphenix/protocol/injector/DelayedSingleTask.java

@@ -1,149 +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 org.bukkit.plugin.Plugin;
-import org.bukkit.scheduler.BukkitScheduler;
-
-/**
- * Represents a single delayed task.
- * 
- * @author Kristian
- */
-public class DelayedSingleTask {
-
-	protected int taskID = -1;
-	protected Plugin plugin;
-	protected BukkitScheduler scheduler;
-	protected boolean closed;
-	
-	/**
-	 * Create a single task scheduler.
-	 * @param plugin - owner plugin.
-	 */
-	public DelayedSingleTask(Plugin plugin) {
-		this.plugin = plugin;
-		this.scheduler = plugin.getServer().getScheduler();
-	}
-	
-	/**
-	 * Create a single task scheduler.
-	 * @param plugin - owner plugin.
-	 * @param scheduler - specialized scheduler.
-	 */
-	public DelayedSingleTask(Plugin plugin, BukkitScheduler scheduler) {
-		this.plugin = plugin;
-		this.scheduler = scheduler;
-	}
-
-	/**
-	 * Schedule a single task for execution. 
-	 * <p>
-	 * Any previously scheduled task will be automatically cancelled.
-	 * <p>
-	 * Note that a tick delay of zero will execute the task immediately. 
-	 * 
-	 * @param ticksDelay - number of ticks before the task is executed.
-	 * @param task - the task to schedule.
-	 * @return TRUE if the task was successfully scheduled or executed, FALSE otherwise.
-	 */
-	public boolean schedule(long ticksDelay, Runnable task) {
-		if (ticksDelay < 0)
-			throw new IllegalArgumentException("Tick delay cannot be negative.");
-		if (task == null)
-			throw new IllegalArgumentException("task cannot be NULL");
-		if (closed)
-			return false;
-		
-		// Special case
-		if (ticksDelay == 0) {
-			task.run();
-			return true;
-		}
-		
-		// Boilerplate, boilerplate
-		final Runnable dispatch = task;
-		
-		// Don't run multiple tasks!
-		cancel();
-		taskID = scheduler.scheduleSyncDelayedTask(plugin, new Runnable() {
-			@Override
-			public void run() {
-				dispatch.run();
-				taskID = -1;
-			}
-		}, ticksDelay);
-		
-		return isRunning();
-	}
-
-	/**
-	 * Whether or not a future task is scheduled to be executed.
-	 * @return TRUE if a current task has been scheduled for execution, FALSE otherwise.
-	 */
-	public boolean isRunning() {
-		return taskID >= 0;
-	}
-	
-	/**
-	 * Cancel a future task from being executed.
-	 * @return TRUE if a task was cancelled, FALSE otherwise.
-	 */
-	public boolean cancel() {
-		if (isRunning()) {
-			scheduler.cancelTask(taskID);
-			taskID = -1;
-			return true;
-		} else {
-			return false;
-		}
-	}
-	
-	/**
-	 * Retrieve the raw task ID.
-	 * @return Raw task ID, or negative one if no task has been scheduled.
-	 */
-	public int getTaskID() {
-		return taskID;
-	}
-
-	/**
-	 * Retrieve the plugin this task belongs to.
-	 * @return The plugin scheduling the current taks.
-	 */
-	public Plugin getPlugin() {
-		return plugin;
-	}
-	
-	/**
-	 * Stop the current task and all future tasks scheduled by this instance.
-	 */
-	public synchronized void close() {
-		if (!closed) {
-			cancel();
-			plugin = null;
-			scheduler = null;
-			closed = true;
-		}
-	}
-	
-	@Override
-	protected void finalize() throws Throwable {
-		close();
-	}
-}

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

@@ -17,9 +17,6 @@
 
 package com.comphenix.protocol.injector;
 
-import java.util.*;
-import java.util.concurrent.ConcurrentHashMap;
-
 import com.comphenix.protocol.reflect.FieldAccessException;
 import com.comphenix.protocol.reflect.FuzzyReflection;
 import com.comphenix.protocol.reflect.accessors.Accessors;
@@ -27,10 +24,20 @@ import com.comphenix.protocol.reflect.accessors.FieldAccessor;
 import com.comphenix.protocol.reflect.accessors.MethodAccessor;
 import com.comphenix.protocol.reflect.fuzzy.FuzzyFieldContract;
 import com.comphenix.protocol.reflect.fuzzy.FuzzyMethodContract;
+import com.comphenix.protocol.utility.MinecraftFields;
 import com.comphenix.protocol.utility.MinecraftReflection;
 import com.comphenix.protocol.utility.MinecraftVersion;
 import com.comphenix.protocol.wrappers.WrappedIntHashMap;
-import com.google.common.collect.Lists;
+
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+import java.lang.reflect.Modifier;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
 
 import org.apache.commons.lang.Validate;
 import org.bukkit.World;
@@ -43,51 +50,106 @@ import org.bukkit.entity.Player;
  * @author Kristian
  */
 class EntityUtilities {
-	private static final boolean NEW_TRACKER = MinecraftVersion.VILLAGE_UPDATE.atOrAbove();
+
 	private static final EntityUtilities INSTANCE = new EntityUtilities();
+	private static final boolean NEW_TRACKER = MinecraftVersion.VILLAGE_UPDATE.atOrAbove();
+
+	private final Map<Class<?>, MethodAccessor> scanPlayersMethods = new ConcurrentHashMap<>();
+	private final Map<Class<?>, FieldAccessor> trackedEntityFields = new ConcurrentHashMap<>();
+
+	private FieldAccessor chunkMapField;
+	private FieldAccessor entityTrackerField;
+	private FieldAccessor trackedPlayersField;
+	private FieldAccessor trackedEntitiesField;
+
+	private MethodAccessor getEntity;
+	private MethodAccessor getChunkProvider;
+
+	private EntityUtilities() {
+	}
 
 	public static EntityUtilities getInstance() {
 		return INSTANCE;
 	}
 
-	private EntityUtilities() { }
-
-	private FieldAccessor entityTrackerField;
-	private FieldAccessor trackedEntitiesField;
-	private FieldAccessor trackedPlayersField;
-
-	private Map<Class<?>, MethodAccessor> scanPlayersMethods = new HashMap<>();
-
 	public void updateEntity(Entity entity, List<Player> observers) {
 		if (entity == null || !entity.isValid()) {
 			return;
 		}
 
-		Collection<?> trackedPlayers = getTrackedPlayers(entity);
-		List<Object> nmsPlayers = unwrapBukkit(observers);
+		Collection<?> trackedPlayers = this.getTrackedPlayers(entity);
+		List<Object> nmsPlayers = this.unwrapBukkit(observers);
 
-		trackedPlayers.removeAll(nmsPlayers);
-
-		Object trackerEntry = getEntityTrackerEntry(entity.getWorld(), entity.getEntityId());
+		List<Object> removingEntries =
+				MinecraftVersion.CAVES_CLIFFS_1.atOrAbove() ? this.getPlayerConnections(nmsPlayers) : nmsPlayers;
+		trackedPlayers.removeAll(removingEntries);
 
 		// there can be multiple different entity tracker entry impls, see GH-732....
-		scanPlayersMethods.computeIfAbsent(trackerEntry.getClass(), this::findScanPlayers).invoke(trackerEntry, nmsPlayers);
+		Object trackerEntry = this.getEntityTrackerEntry(entity.getWorld(), entity.getEntityId());
+		this.scanPlayersMethods.computeIfAbsent(trackerEntry.getClass(), this::findScanPlayers)
+				.invoke(trackerEntry, nmsPlayers);
+	}
+
+	public Entity getEntity(World world, int id) {
+		// new tracker registers the entity before sending out any packets - we can use the supported getter method here
+		if (NEW_TRACKER) {
+			Object level = BukkitUnwrapper.getInstance().unwrapItem(world);
+			if (this.getEntity == null) {
+				Method entityGetter = FuzzyReflection.fromObject(level).getMethodByReturnTypeAndParameters(
+						"getEntity",
+						MinecraftReflection.getEntityClass(),
+						int.class);
+				this.getEntity = Accessors.getMethodAccessor(entityGetter);
+			}
+
+			Object entity = this.getEntity.invoke(level, id);
+			return (Entity) MinecraftReflection.getBukkitEntity(entity);
+		}
+
+		// old tracker - now the pain begins
+		Object trackerEntry = this.getEntityTrackerEntry(world, id);
+		if (trackerEntry == null) {
+			// not tracked
+			return null;
+		}
+
+		FieldAccessor trackedEntityAccessor = this.trackedEntityFields.computeIfAbsent(trackerEntry.getClass(), clz -> {
+			try {
+				// try to get the first entity field from the tracker class
+				Field entityField = FuzzyReflection.fromClass(clz, true).getField(FuzzyFieldContract.newBuilder()
+						.typeExact(MinecraftReflection.getEntityClass())
+						.build());
+				return Accessors.getFieldAccessor(entityField);
+			} catch (IllegalArgumentException exception) {
+				// no such field, try the base tracker class instead
+				Class<?> trackerClass = MinecraftReflection.getEntityTrackerClass();
+				Field entityField = FuzzyReflection.fromClass(trackerClass, true).getField(FuzzyFieldContract.newBuilder()
+						.typeExact(MinecraftReflection.getEntityClass())
+						.build());
+				return Accessors.getFieldAccessor(entityField);
+			}
+		});
+
+		Object entity = trackedEntityAccessor.get(trackerEntry);
+		return (Entity) MinecraftReflection.getBukkitEntity(entity);
 	}
 
 	private MethodAccessor findScanPlayers(Class<?> trackerClass) {
-		MethodAccessor candidate = Accessors.getMethodAcccessorOrNull(trackerClass, "scanPlayers");
+		MethodAccessor candidate = Accessors.getMethodAccessorOrNull(trackerClass, "scanPlayers");
 		if (candidate != null) {
 			return candidate;
 		}
 
 		FuzzyReflection fuzzy = FuzzyReflection.fromClass(trackerClass, true);
-		return Accessors.getMethodAccessor(
-				fuzzy.getMethod(
-						FuzzyMethodContract.newBuilder().returnTypeVoid().parameterExactArray(List.class).build()));
+		return Accessors.getMethodAccessor(fuzzy.getMethod(FuzzyMethodContract.newBuilder()
+				.returnTypeVoid()
+				.parameterExactArray(List.class)
+				.build()));
 	}
 
 	/**
 	 * 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.
@@ -98,11 +160,13 @@ class EntityUtilities {
 		}
 
 		List<Player> result = new ArrayList<>();
-		Collection<?> trackedPlayers = getTrackedPlayers(entity);
+		Collection<?> trackedPlayers = this.getTrackedPlayers(entity);
 
 		// Wrap every player - we also ensure that the underlying tracker list is immutable
 		for (Object tracker : trackedPlayers) {
-			if (MinecraftReflection.isMinecraftPlayer(tracker)) {
+			if (MinecraftVersion.CAVES_CLIFFS_1.atOrAbove() && MinecraftReflection.isServerHandler(tracker)) {
+				result.add(MinecraftReflection.getBukkitPlayerFromConnection(tracker));
+			} else if (MinecraftReflection.isMinecraftPlayer(tracker)) {
 				result.add((Player) MinecraftReflection.getBukkitEntity(tracker));
 			}
 		}
@@ -113,56 +177,65 @@ class EntityUtilities {
 	private Collection<?> getTrackedPlayers(Entity entity) {
 		Validate.notNull(entity, "entity cannot be null");
 
-		Object trackerEntry = getEntityTrackerEntry(entity.getWorld(), entity.getEntityId());
-		Validate.notNull(trackerEntry, "Could not find entity trackers for " + entity);
-
-		if (trackedPlayersField == null) {
-			trackedPlayersField = Accessors.getFieldAccessor(FuzzyReflection.fromObject(trackerEntry).getFieldByType("java\\.util\\..*"));
+		Object trackerEntry = this.getEntityTrackerEntry(entity.getWorld(), entity.getEntityId());
+		if (trackerEntry == null) { //entity.toString() is too expensive to be called every time
+			throw new IllegalArgumentException("Could not find entity trackers for " + entity);
 		}
 
-		Validate.notNull(trackedPlayersField, "Could not find trackedPlayers field");
+		if (this.trackedPlayersField == null) {
+			this.trackedPlayersField = Accessors.getFieldAccessor(
+					FuzzyReflection.fromObject(trackerEntry).getFieldByType("java\\.util\\..*"));
+		}
 
-		Object value = trackedPlayersField.get(trackerEntry);
+		Validate.notNull(this.trackedPlayersField, "Could not find trackedPlayers field");
+
+		Object value = this.trackedPlayersField.get(trackerEntry);
 		if (value instanceof Collection) {
 			return (Collection<?>) value;
 		} else if (value instanceof Map) {
 			return ((Map<?, ?>) value).keySet();
 		} else {
 			// Please. No more changes.
-			throw new IllegalStateException("trackedPlayers field was an unknown type: expected Collection or Map, but got " + value.getClass());
+			throw new IllegalStateException(
+					"trackedPlayers field was an unknown type: expected Collection or Map, but got " + value.getClass());
 		}
 	}
 
-	private MethodAccessor getChunkProvider;
-	private FieldAccessor chunkMapField;
-
 	@SuppressWarnings("unchecked")
 	private Object getNewEntityTracker(Object worldServer, int entityId) {
-		if (getChunkProvider == null) {
-			Class<?> chunkProviderClass = MinecraftReflection.getMinecraftClass("ChunkProviderServer");
-			getChunkProvider = Accessors.getMethodAccessor(
-					FuzzyReflection.fromClass(worldServer.getClass(), false).getMethod(
-							FuzzyMethodContract.newBuilder().parameterCount(0).returnTypeExact(chunkProviderClass).build()));
+		if (this.getChunkProvider == null) {
+			Class<?> chunkProviderClass = MinecraftReflection.getChunkProviderServer();
+			this.getChunkProvider = Accessors.getMethodAccessor(FuzzyReflection.fromClass(worldServer.getClass(), false)
+					.getMethod(FuzzyMethodContract.newBuilder().parameterCount(0).returnTypeExact(chunkProviderClass).build()));
 		}
 
-		Object chunkProvider = getChunkProvider.invoke(worldServer);
+		Object chunkProvider = this.getChunkProvider.invoke(worldServer);
 
-		if (chunkMapField == null) {
-			Class<?> chunkMapClass = MinecraftReflection.getMinecraftClass("PlayerChunkMap");
-			chunkMapField = Accessors.getFieldAccessor(
-					FuzzyReflection.fromClass(chunkProvider.getClass(), false).getField(
-							FuzzyFieldContract.newBuilder().typeExact(chunkMapClass).build()));
+		if (this.chunkMapField == null) {
+			Class<?> chunkMapClass = MinecraftReflection.getPlayerChunkMap();
+			this.chunkMapField = Accessors.getFieldAccessor(FuzzyReflection.fromClass(chunkProvider.getClass(), false)
+					.getField(FuzzyFieldContract.newBuilder().typeExact(chunkMapClass).build()));
 		}
 
-		Object playerChunkMap = chunkMapField.get(chunkProvider);
+		Object playerChunkMap = this.chunkMapField.get(chunkProvider);
 
-		if (trackedEntitiesField == null) {
-			trackedEntitiesField = Accessors.getFieldAccessor(
-					FuzzyReflection.fromClass(playerChunkMap.getClass(), false).getField(
-							FuzzyFieldContract.newBuilder().typeDerivedOf(Map.class).nameExact("trackedEntities").build()));
+		if (this.trackedEntitiesField == null) {
+			if (MinecraftVersion.CAVES_CLIFFS_1.atOrAbove()) {
+				this.trackedEntitiesField = Accessors.getFieldAccessor(
+						FuzzyReflection.fromClass(playerChunkMap.getClass(), true)
+								.getField(FuzzyFieldContract.newBuilder()
+										.banModifier(Modifier.STATIC)
+										.requirePublic()
+										.typeExact(MinecraftReflection.getInt2ObjectMapClass())
+										.build()));
+			} else {
+				this.trackedEntitiesField = Accessors.getFieldAccessor(
+						FuzzyReflection.fromClass(playerChunkMap.getClass(), false).getField(
+								FuzzyFieldContract.newBuilder().typeDerivedOf(Map.class).nameExact("trackedEntities").build()));
+			}
 		}
 
-		Map<Integer, Object> trackedEntities = (Map<Integer, Object>) trackedEntitiesField.get(playerChunkMap);
+		Map<Integer, Object> trackedEntities = (Map<Integer, Object>) this.trackedEntitiesField.get(playerChunkMap);
 		return trackedEntities.get(entityId);
 	}
 
@@ -171,97 +244,47 @@ class EntityUtilities {
 		Object worldServer = unwrapper.unwrapItem(world);
 
 		if (NEW_TRACKER) {
-			return getNewEntityTracker(worldServer, entityID);
+			return this.getNewEntityTracker(worldServer, entityID);
 		}
 
-		if (entityTrackerField == null)
-			entityTrackerField = Accessors.getFieldAccessor(FuzzyReflection.fromObject(worldServer).
-									getFieldByType("tracker", MinecraftReflection.getEntityTrackerClass()));
+		if (this.entityTrackerField == null) {
+			this.entityTrackerField = Accessors.getFieldAccessor(FuzzyReflection.fromObject(worldServer).
+					getFieldByType("tracker", MinecraftReflection.getEntityTrackerClass()));
+		}
 
 		// Get the tracker
-		Object tracker = entityTrackerField.get(worldServer);
+		Object tracker = this.entityTrackerField.get(worldServer);
 
 		// Looking for an IntHashMap in the tracker entry
-		if (trackedEntitiesField == null) {
-			trackedEntitiesField = Accessors.getFieldAccessor(FuzzyReflection.fromObject(tracker, false)
+		if (this.trackedEntitiesField == null) {
+			this.trackedEntitiesField = Accessors.getFieldAccessor(FuzzyReflection.fromObject(tracker, false)
 					.getFieldByType("trackedEntities", MinecraftReflection.getIntHashMapClass()));
 		}
 
 		// Read the map
-		Object trackedEntities = trackedEntitiesField.get(tracker);
+		Object trackedEntities = this.trackedEntitiesField.get(tracker);
 		return WrappedIntHashMap.fromHandle(trackedEntities).get(entityID);
 	}
 
-	private Map<Class<?>, FieldAccessor> trackerFields = new ConcurrentHashMap<>();
-	private MethodAccessor getEntityFromId;
-
-	/**
-	 * Retrieve entity from a ID, even it it's newly created.
-	 * @return The associated entity.
-	 * @throws FieldAccessException Reflection error.
-	 */
-	public Entity getEntityFromID(World world, int entityID) {
-		Validate.notNull(world, "world cannot be null");
-		Validate.isTrue(entityID >= 0, "entityID cannot be negative");
-
-		try {
-			// first, try to read from the world
-			// this should be good enough for most cases, but only exists in 1.14+
-			if (NEW_TRACKER) {
-				Object worldServer = BukkitUnwrapper.getInstance().unwrapItem(world);
-
-				if (getEntityFromId == null) {
-					FuzzyReflection fuzzy = FuzzyReflection.fromClass(worldServer.getClass(), false);
-					getEntityFromId = Accessors.getMethodAccessor(fuzzy.getMethod(FuzzyMethodContract.newBuilder()
-							.parameterExactArray(int.class)
-							.returnTypeExact(MinecraftReflection.getEntityClass())
-							.build()));
-				}
-
-				Object entity = getEntityFromId.invoke(worldServer, entityID);
-				if (entity != null) {
-					return (Entity) MinecraftReflection.getBukkitEntity(entity);
-				}
-			}
-
-			// then go into the trackers
-			Object trackerEntry = getEntityTrackerEntry(world, entityID);
-			Object tracker = null;
-
-			if (trackerEntry != null) {
-				// plugins like citizens will use their own tracker
-				FieldAccessor trackerField = trackerFields.computeIfAbsent(trackerEntry.getClass(), x -> {
-					try {
-						return Accessors.getFieldAccessor(trackerEntry.getClass(), "tracker", true);
-					} catch (Exception e) {
-						// Assume it's the first entity field then
-						return Accessors.getFieldAccessor(FuzzyReflection.fromObject(trackerEntry, true)
-								.getFieldByType("tracker", MinecraftReflection.getEntityClass()));
-					}
-				});
-
-				tracker = trackerField.get(trackerEntry);
-			}
-
-			// If the tracker is NULL, we'll just assume this entity doesn't exist
-			return tracker != null ? (Entity) MinecraftReflection.getBukkitEntity(tracker) : null;
-		} catch (Exception e) {
-			throw new FieldAccessException("Cannot find entity from ID " + entityID + ".", e);
-		}
+	private List<Object> getPlayerConnections(List<Object> nmsPlayers) {
+		List<Object> connections = new ArrayList<>(nmsPlayers.size());
+		nmsPlayers.forEach(nmsPlayer -> connections.add(MinecraftFields.getPlayerConnection(nmsPlayer)));
+		return connections;
 	}
 
 	private List<Object> unwrapBukkit(List<Player> players) {
-		List<Object> output = Lists.newArrayList();
+		final List<Object> output = new ArrayList<>();
 		BukkitUnwrapper unwrapper = new BukkitUnwrapper();
 
 		// Get the NMS equivalent
 		for (Player player : players) {
 			Object result = unwrapper.unwrapItem(player);
 
-			if (result != null)
+			if (result != null) {
 				output.add(result);
-			else
+			} else {
 				throw new IllegalArgumentException("Cannot unwrap item " + player);
+			}
 		}
 
 		return output;

src/main/java/com/comphenix/protocol/injector/GamePhase.java

@@ -2,16 +2,16 @@
  *  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 
+ *  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. 
+ *  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 
+ *  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
  */
 
@@ -19,7 +19,7 @@ package com.comphenix.protocol.injector;
 
 /**
  * The current player phase. This is used to limit the number of different injections.
- * 
+ *
  * @author Kristian
  */
 public enum GamePhase {
@@ -27,27 +27,29 @@ public enum GamePhase {
 	 * Only listen for packets sent or received before a player has logged in.
 	 */
 	LOGIN,
-	
+
 	/**
 	 * Only listen for packets sent or received after a player has logged in.
 	 */
 	PLAYING,
-	
+
 	/**
 	 * Listen for every sent and received packet.
 	 */
 	BOTH;
-	
+
 	/**
 	 * Determine if the current value represents the login phase.
+	 *
 	 * @return TRUE if it does, FALSE otherwise.
 	 */
 	public boolean hasLogin() {
 		return this == LOGIN || this == BOTH;
 	}
-	
+
 	/**
 	 * Determine if the current value represents the playing phase.
+	 *
 	 * @return TRUE if it does, FALSE otherwise.
 	 */
 	public boolean hasPlaying() {

src/main/java/com/comphenix/protocol/injector/InternalManager.java

@@ -1,49 +1,40 @@
 package com.comphenix.protocol.injector;
 
+import com.comphenix.protocol.ProtocolManager;
 import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.PluginManager;
 
-import com.comphenix.protocol.ProtocolManager;
-
 /**
  * Yields access to the internal hook configuration.
- * 
+ *
  * @author Kristian
  */
 public interface InternalManager extends ProtocolManager {
-	/**
-	 * Retrieves how the server packets are read.
-	 * @return Injection method for reading server packets.
-	 */
-	public PlayerInjectHooks getPlayerHook();
-
-	/**
-	 * Sets how the server packets are read.
-	 * @param playerHook - the new injection method for reading server packets.
-	 */
-	public void setPlayerHook(PlayerInjectHooks playerHook);
 
 	/**
 	 * Register this protocol manager on Bukkit.
+	 *
 	 * @param manager - Bukkit plugin manager that provides player join/leave events.
-	 * @param plugin - the parent plugin.
+	 * @param plugin  - the parent plugin.
 	 */
-	public void registerEvents(PluginManager manager, final Plugin plugin);
-	
+	void registerEvents(PluginManager manager, final Plugin plugin);
+
 	/**
 	 * Called when ProtocolLib is closing.
 	 */
-	public void close();
+	void close();
 
 	/**
 	 * Determine if debug mode is enabled.
+	 *
 	 * @return TRUE if it is, FALSE otherwise.
 	 */
-	public boolean isDebug();
-	
+	boolean isDebug();
+
 	/**
 	 * Set whether or not debug mode is enabled.
+	 *
 	 * @param debug - TRUE if it is, FALSE otherwise.
 	 */
-	public void setDebug(boolean debug);
+	void setDebug(boolean debug);
 }

src/main/java/com/comphenix/protocol/injector/ListenerInvoker.java

@@ -2,16 +2,16 @@
  *  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 
+ *  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. 
+ *  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 
+ *  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
  */
 
@@ -22,33 +22,28 @@ import com.comphenix.protocol.events.PacketEvent;
 
 /**
  * Represents an object that initiate the packet listeners.
- * 
+ *
  * @author Kristian
  */
 public interface ListenerInvoker {
 
 	/**
 	 * Invokes the given packet event for every registered listener.
+	 *
 	 * @param event - the packet event to invoke.
 	 */
-	void invokePacketRecieving(PacketEvent event);
+	void invokePacketReceiving(PacketEvent event);
 
 	/**
 	 * Invokes the given packet event for every registered listener.
+	 *
 	 * @param event - the packet event to invoke.
 	 */
 	void invokePacketSending(PacketEvent event);
 
-	/**
-	 * Retrieve the associated ID of a packet.
-	 * @param packet - the packet.
-	 * @return The packet ID.
-	 */
-	@Deprecated
-	int getPacketID(Object packet);
-
 	/**
 	 * Retrieve the associated type of a packet.
+	 *
 	 * @param packet - the packet.
 	 * @return The packet type.
 	 */

src/main/java/com/comphenix/protocol/injector/NetworkProcessor.java

@@ -1,108 +1,74 @@
 package com.comphenix.protocol.injector;
 
-import java.util.List;
-import java.util.PriorityQueue;
-
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.ProtocolManager;
 import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.events.NetworkMarker;
 import com.comphenix.protocol.events.PacketEvent;
-import com.comphenix.protocol.events.PacketOutputHandler;
 import com.comphenix.protocol.events.PacketPostListener;
 import com.comphenix.protocol.events.ScheduledPacket;
+import java.util.Deque;
 
 /**
  * Represents a processor for network markers.
+ *
  * @author Kristian
  */
 public class NetworkProcessor {
-	private ErrorReporter reporter;
-	
+
+	private final ErrorReporter reporter;
+
 	/**
 	 * Construct a new network processor.
+	 *
 	 * @param reporter - the reporter.
 	 */
 	public NetworkProcessor(ErrorReporter reporter) {
 		this.reporter = reporter;
 	}
-	
-	/**
-	 * Process the serialized packet byte array with the given network marker.
-	 * @param event - current packet event.
-	 * @param marker - the network marker.
-	 * @param input - the input array.
-	 * @return The output array.
-	 */
-	public byte[] processOutput(PacketEvent event, NetworkMarker marker, final byte[] input) {
-		// Bit of a hack - but we need the performance
-		PriorityQueue<PacketOutputHandler> handlers = (PriorityQueue<PacketOutputHandler>)
-			marker.getOutputHandlers();
-		byte[] output = input;
-		
-		// Let each handler prepare the actual output
-		while (!handlers.isEmpty()) {
-			PacketOutputHandler handler = handlers.poll();
-			
-			try {
-				byte[] changed = handler.handle(event, output);
-				
-				// Don't break just because a plugin returned NULL
-				if (changed != null) {
-					output = changed;
-				} else {
-					throw new IllegalStateException("Handler cannot return a NULL array.");
-				}
-			} catch (OutOfMemoryError e) {
-				throw e;
-			} catch (ThreadDeath e) {
-				throw e;
-			} catch (Throwable e) {
-				reporter.reportMinimal(handler.getPlugin(), "PacketOutputHandler.handle()", e);
-			}
-		}
-		return output;
-	}
 
 	/**
 	 * Invoke the post listeners and packet transmission, if any.
-	 * @param event - PacketEvent
+	 *
+	 * @param event  - PacketEvent
 	 * @param marker - the network marker, or NULL.
 	 */
 	public void invokePostEvent(PacketEvent event, NetworkMarker marker) {
-		if (marker == null)
+		if (marker == null) {
 			return;
-		
-		if (NetworkMarker.hasPostListeners(marker)) {
+		}
+
+		if (event != null && NetworkMarker.hasPostListeners(marker)) {
 			// Invoke every sent listener
 			for (PacketPostListener listener : marker.getPostListeners()) {
 				try {
 					listener.onPostEvent(event);
-				} catch (OutOfMemoryError e) {
-					throw e;
-				} catch (ThreadDeath e) {
+				} catch (OutOfMemoryError | ThreadDeath e) {
 					throw e;
 				} catch (Throwable e) {
-					reporter.reportMinimal(listener.getPlugin(), "SentListener.run()", e);
+					this.reporter.reportMinimal(listener.getPlugin(), "SentListener.run()", e);
 				}
 			}
 		}
-		sendScheduledPackets(marker);
+
+		this.sendScheduledPackets(marker);
 	}
-	
+
 	/**
 	 * Send any scheduled packets.
+	 *
 	 * @param marker - the network marker.
 	 */
 	private void sendScheduledPackets(NetworkMarker marker) {
 		// Next, invoke post packet transmission
-		List<ScheduledPacket> scheduled = NetworkMarker.readScheduledPackets(marker);
+		Deque<ScheduledPacket> scheduled = NetworkMarker.readScheduledPackets(marker);
 		ProtocolManager manager = ProtocolLibrary.getProtocolManager();
-		
+
 		if (scheduled != null) {
-			for (ScheduledPacket packet : scheduled) {
+			ScheduledPacket packet;
+			while ((packet = scheduled.poll()) != null) {
 				packet.schedule(manager);
 			}
 		}
 	}
- }
+}

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

@@ -17,10 +17,6 @@
 
 package com.comphenix.protocol.injector;
 
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-import java.util.List;
-
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.error.RethrowErrorReporter;
 import com.comphenix.protocol.events.PacketContainer;
@@ -30,70 +26,117 @@ import com.comphenix.protocol.wrappers.BukkitConverters;
 import com.google.common.collect.ImmutableList;
 import com.google.common.collect.Lists;
 import com.google.common.primitives.Primitives;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.InvocationTargetException;
+import java.util.List;
 
 /**
  * A packet constructor that uses an internal Minecraft.
- * @author Kristian
  *
+ * @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;
-	
+	private final Constructor<?> constructorMethod;
+	// Used to unwrap Bukkit objects
+	private final List<Unwrapper> unwrappers;
+
 	// The packet ID
 	private PacketType type;
-	
-	// Used to unwrap Bukkit objects
-	private List<Unwrapper> unwrappers;
-	
 	// Parameters that need to be unwrapped
 	private Unwrapper[] paramUnwrapper;
-	
+
 	private PacketConstructor(Constructor<?> constructorMethod) {
 		this.constructorMethod = constructorMethod;
-		this.unwrappers = Lists.newArrayList((Unwrapper) new BukkitUnwrapper(new RethrowErrorReporter() ));
+		this.unwrappers = Lists.newArrayList((Unwrapper) new BukkitUnwrapper(new RethrowErrorReporter()));
 		this.unwrappers.addAll(BukkitConverters.getUnwrappers());
 	}
-	
-	private PacketConstructor(PacketType type, Constructor<?> constructorMethod, List<Unwrapper> unwrappers, Unwrapper[] paramUnwrapper) {
+
+	private PacketConstructor(PacketType type, Constructor<?> constructorMethod, List<Unwrapper> unwrappers,
+			Unwrapper[] paramUnwrapper) {
 		this.type = type;
 		this.constructorMethod = constructorMethod;
 		this.unwrappers = unwrappers;
 		this.paramUnwrapper = paramUnwrapper;
 	}
-	
+
+	// 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++) {
+				Class<?> inputType = types[i];
+				Class<?> paramType = params[i];
+
+				// The input type is always wrapped
+				if (!inputType.isPrimitive() && paramType.isPrimitive()) {
+					// Wrap it
+					paramType = Primitives.wrap(paramType);
+				}
+
+				// Compare assignability
+				if (!paramType.isAssignableFrom(inputType)) {
+					return false;
+				}
+			}
+
+			return true;
+		}
+
+		// Parameter count must match
+		return false;
+	}
+
+	/**
+	 * Retrieve the class of an object, or just the class if it already is a class object.
+	 *
+	 * @param obj - the object.
+	 * @return The class of an object.
+	 */
+	public static Class<?> getClass(Object obj) {
+		if (obj instanceof Class) {
+			return (Class<?>) obj;
+		}
+		return obj.getClass();
+	}
+
 	public ImmutableList<Unwrapper> getUnwrappers() {
 		return ImmutableList.copyOf(unwrappers);
 	}
-	
+
 	/**
 	 * Retrieve the id of the packets this constructor creates.
 	 * <p>
 	 * Deprecated: Use {@link #getType()} instead.
+	 *
 	 * @return The ID of the packets this constructor will create.
 	 */
 	@Deprecated
 	public int getPacketID() {
 		return type.getCurrentId();
 	}
-	
+
 	/**
 	 * Retrieve the type of the packets this constructor creates.
+	 *
 	 * @return The type of the created packets.
 	 */
 	public PacketType getType() {
 		return type;
 	}
-	
+
 	/**
 	 * 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.
 	 */
@@ -105,7 +148,8 @@ public class PacketConstructor {
 	 * Create a packet constructor that creates packets using the given types.
 	 * <p>
 	 * Note that if you pass a Class as a value, it will use its type directly.
-	 * @param type - the type of the packet to create.
+	 *
+	 * @param type   - the type of the packet to create.
 	 * @param values - the values that will match each parameter in the desired constructor.
 	 * @return A packet constructor with these types.
 	 * @throws IllegalArgumentException If no packet constructor could be created with these types.
@@ -114,15 +158,15 @@ public class PacketConstructor {
 		Class<?>[] types = new Class<?>[values.length];
 		Throwable lastException = null;
 		Unwrapper[] paramUnwrapper = new Unwrapper[values.length];
-		
+
 		for (int i = 0; i < types.length; i++) {
 			// Default type
 			if (values[i] != null) {
 				types[i] = PacketConstructor.getClass(values[i]);
-				
+
 				for (Unwrapper unwrapper : unwrappers) {
 					Object result = null;
-					
+
 					try {
 						result = unwrapper.unwrapItem(values[i]);
 					} catch (OutOfMemoryError e) {
@@ -132,7 +176,7 @@ public class PacketConstructor {
 					} catch (Throwable e) {
 						lastException = e;
 					}
-					
+
 					// Update type we're searching for
 					if (result != null) {
 						types[i] = PacketConstructor.getClass(result);
@@ -140,19 +184,17 @@ public class PacketConstructor {
 						break;
 					}
 				}
-			
+
 			} else {
 				// Try it
 				types[i] = Object.class;
 			}
 		}
-		Class<?> packetType = PacketRegistry.getPacketClassFromType(type, true);
-		
-		if (packetType == null)
-			throw new IllegalArgumentException("Could not find a packet by the type " + type);
-		
+
+		Class<?> packetClass = PacketRegistry.getPacketClassFromType(type);
+
 		// Find the correct constructor
-		for (Constructor<?> constructor : packetType.getConstructors()) {
+		for (Constructor<?> constructor : packetClass.getConstructors()) {
 			Class<?>[] params = constructor.getParameterTypes();
 
 			if (isCompatible(types, params)) {
@@ -162,14 +204,15 @@ public class PacketConstructor {
 		}
 		throw new IllegalArgumentException("No suitable constructor could be found.", lastException);
 	}
-	
+
 	/**
 	 * 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 FieldAccessException     Failure due to a security limitation.
 	 * @throws IllegalArgumentException Arguments doesn't match the constructor.
-	 * @throws RuntimeException Minecraft threw an exception.
+	 * @throws RuntimeException         Minecraft threw an exception.
 	 */
 	public PacketContainer createPacket(Object... values) throws FieldAccessException {
 		try {
@@ -179,10 +222,10 @@ public class PacketConstructor {
 					values[i] = paramUnwrapper[i].unwrapItem(values[i]);
 				}
 			}
-			
+
 			Object nmsPacket = constructorMethod.newInstance(values);
 			return new PacketContainer(type, nmsPacket);
-			
+
 		} catch (IllegalArgumentException e) {
 			throw e;
 		} catch (InstantiationException e) {
@@ -193,57 +236,20 @@ public class PacketConstructor {
 			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++) {
-				Class<?> inputType = types[i];
-				Class<?> paramType = params[i];
-				
-				// The input type is always wrapped
-				if (!inputType.isPrimitive() && paramType.isPrimitive()) {
-					// Wrap it
-					paramType = Primitives.wrap(paramType);
-				}
-				
-				// Compare assignability
-				if (!paramType.isAssignableFrom(inputType)) {
-					return false;
-				}
-			}
-			
-			return true;
-		}
-		
-		// Parameter count must match
-		return false;
-	}
-	
-	/**
-	 * Retrieve the class of an object, or just the class if it already is a class object.
-	 * @param obj - the object.
-	 * @return The class of an object.
-	 */
-	public static Class<?> getClass(Object obj) {
-		if (obj instanceof Class)
-			return (Class<?>) obj;
-		return obj.getClass();
-	}
 
 	/**
 	 * Represents a unwrapper for a constructor parameter.
-	 * 
+	 *
 	 * @author Kristian
 	 */
 	public static interface Unwrapper {
+
 		/**
 		 * Convert the given wrapped object to the equivalent net.minecraft.server object.
 		 * <p>
-		 * Note that we may pass in a class instead of object - in that case, the unwrapper should
-		 * return the equivalent NMS class.
+		 * Note that we may pass in a class instead of object - in that case, the unwrapper should return the equivalent NMS
+		 * class.
+		 *
 		 * @param wrappedObject - wrapped object or class.
 		 * @return The equivalent net.minecraft.server object or class.
 		 */

src/main/java/com/comphenix/protocol/injector/PacketFilterBuilder.java

@@ -1,191 +1,122 @@
 package com.comphenix.protocol.injector;
 
-import javax.annotation.Nonnull;
-
 import com.comphenix.protocol.async.AsyncFilterManager;
 import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.utility.MinecraftVersion;
-
+import javax.annotation.Nonnull;
 import org.bukkit.Server;
 import org.bukkit.plugin.Plugin;
 
 public class PacketFilterBuilder {
-	private ClassLoader classLoader;
+
 	private Server server;
 	private Plugin library;
 	private MinecraftVersion mcVersion;
-	private DelayedSingleTask unhookTask;
 	private ErrorReporter reporter;
-	
-	// Whether or not we need to enable Netty
 	private AsyncFilterManager asyncManager;
-	private boolean nettyEnabled;
 
-	/**
-	 * Update the current class loader.
-	 * @param classLoader - current class loader.
-	 * @return This builder, for chaining.
-	 */
-	public PacketFilterBuilder classLoader(@Nonnull ClassLoader classLoader) {
-		if (classLoader == null)
-			throw new IllegalArgumentException("classLoader cannot be NULL.");
-		this.classLoader = classLoader;
-		return this;
-	}
-	
 	/**
 	 * Set the current server.
+	 *
 	 * @param server - current server.
 	 * @return This builder, for chaining.
 	 */
 	public PacketFilterBuilder server(@Nonnull Server server) {
-		if (server == null)
-			throw new IllegalArgumentException("server cannot be NULL.");
 		this.server = server;
 		return this;
 	}
-	
+
 	/**
 	 * Set a reference to the plugin instance of ProtocolLib.
+	 *
 	 * @param library - plugin instance.
 	 * @return This builder, for chaining.
 	 */
 	public PacketFilterBuilder library(@Nonnull Plugin library) {
-		if (library == null)
-			throw new IllegalArgumentException("library cannot be NULL.");
 		this.library = library;
 		return this;
 	}
-	
+
 	/**
 	 * Set the current Minecraft version.
+	 *
 	 * @param mcVersion - Minecraft version.
-	 * @return This builder, for chaining. 
+	 * @return This builder, for chaining.
 	 */
 	public PacketFilterBuilder minecraftVersion(@Nonnull MinecraftVersion mcVersion) {
-		if (mcVersion == null)
-			throw new IllegalArgumentException("minecraftVersion cannot be NULL.");
 		this.mcVersion = mcVersion;
 		return this;
 	}
-	
-	/**
-	 * Set the task used to delay unhooking when ProtocolLib is no in use.
-	 * @param unhookTask - the unhook task.
-	 * @return This builder, for chaining.
-	 */
-	public PacketFilterBuilder unhookTask(@Nonnull DelayedSingleTask unhookTask) {
-		if (unhookTask == null)
-			throw new IllegalArgumentException("unhookTask cannot be NULL.");
-		this.unhookTask = unhookTask;
-		return this;
-	}
-	
+
 	/**
 	 * Set the error reporter.
+	 *
 	 * @param reporter - new error reporter.
 	 * @return This builder, for chaining.
 	 */
 	public PacketFilterBuilder reporter(@Nonnull ErrorReporter reporter) {
-		if (reporter == null)
-			throw new IllegalArgumentException("reporter cannot be NULL.");
 		this.reporter = reporter;
 		return this;
 	}
-	
-	/**
-	 * Determine if we should prepare to hook Netty in Spigot.
-	 * <p>
-	 * This is calculated in the {@link #build()} method.
-	 * @return TRUE if we should, FALSE otherwise.
-	 */
-	public boolean isNettyEnabled() {
-		return nettyEnabled;
-	}
-	
-	/**
-	 * Retrieve the class loader set in this builder.
-	 * @return The class loader.
-	 */
-	public ClassLoader getClassLoader() {
-		return classLoader;
-	}
 
 	/**
 	 * Retrieve the current CraftBukkit server.
+	 *
 	 * @return Current server.
 	 */
 	public Server getServer() {
-		return server;
+		return this.server;
 	}
 
 	/**
 	 * Retrieve a reference to the current ProtocolLib instance.
+	 *
 	 * @return ProtocolLib.
 	 */
 	public Plugin getLibrary() {
-		return library;
+		return this.library;
 	}
 
 	/**
 	 * Retrieve the current Minecraft version.
+	 *
 	 * @return Current version.
 	 */
 	public MinecraftVersion getMinecraftVersion() {
-		return mcVersion;
-	}
-
-	/**
-	 * Retrieve the task that is used to delay unhooking when ProtocolLib is no in use.
-	 * @return The unhook task.
-	 */
-	public DelayedSingleTask getUnhookTask() {
-		return unhookTask;
+		return this.mcVersion;
 	}
 
 	/**
 	 * Retrieve the error reporter.
+	 *
 	 * @return Error reporter.
 	 */
 	public ErrorReporter getReporter() {
-		return reporter;
+		return this.reporter;
 	}
 
 	/**
 	 * Retrieve the asynchronous manager.
 	 * <p>
 	 * This is first constructed the {@link #build()} method.
+	 *
 	 * @return The asynchronous manager.
 	 */
 	public AsyncFilterManager getAsyncManager() {
-		return asyncManager;
+		return this.asyncManager;
 	}
-	
+
 	/**
 	 * Create a new packet filter manager.
+	 *
 	 * @return A new packet filter manager.
 	 */
 	public InternalManager build() {
-		if (reporter == null)
+		if (this.reporter == null) {
 			throw new IllegalArgumentException("reporter cannot be NULL.");
-		if (classLoader == null)
-			throw new IllegalArgumentException("classLoader cannot be NULL.");
-		
-		asyncManager = new AsyncFilterManager(reporter, server.getScheduler());
-		nettyEnabled = false;
+		}
 
-		return buildInternal();
-	}
-
-	/**
-	 * Construct a new packet filter manager without checking for Netty.
-	 * @return A new packet filter manager.
-	 */
-	private PacketFilterManager buildInternal() {
-		PacketFilterManager manager = new PacketFilterManager(this);
-		
-		// It's a cyclic reference, but it's too late to fix now
-		asyncManager.setManager(manager);
-		return manager;
+		this.asyncManager = new AsyncFilterManager(this.reporter, this.server.getScheduler());
+		return new PacketFilterManager(this);
 	}
 }

src/main/java/com/comphenix/protocol/injector/PlayerInjectHooks.java

@@ -1,31 +0,0 @@
-package com.comphenix.protocol.injector;
-
-/**
- * Sets the inject hook type. Different types allow for maximum compatibility.
- * @author Kristian
- */
-public enum PlayerInjectHooks {
-	/**
-	 * The injection hook that does nothing. Set when every other inject hook fails.
-	 */
-	NONE,
-
-	/**
-	 * Override the network handler object itself. Only works in 1.3.
-	 * <p>
-	 * Cannot intercept MapChunk packets.
-	 */
-	NETWORK_MANAGER_OBJECT,
-
-	/**
-	 * Override the packet queue lists in NetworkHandler.
-	 * <p>
-	 * Cannot intercept MapChunk packets.
-	 */
-	NETWORK_HANDLER_FIELDS,
-
-	/**
-	 * Override the server handler object. Versatile, but a tad slower.
-	 */
-	NETWORK_SERVER_OBJECT;
-}

src/main/java/com/comphenix/protocol/injector/PlayerLoggedOutException.java

@@ -1,58 +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;
-
-/**
- * Invoked when attempting to use a player that has already logged out.
- * 
- * @author Kristian
- */
-public class PlayerLoggedOutException extends RuntimeException {
-
-	/**
-	 * Generated by Eclipse.
-	 */
-	private static final long serialVersionUID = 4889257862160145234L;
-
-	public PlayerLoggedOutException() {
-		// Default error message
-		super("Cannot inject a player that has already logged out.");
-	}
-	
-	public PlayerLoggedOutException(String message, Throwable cause) {
-		super(message, cause);
-	}
-
-	public PlayerLoggedOutException(String message) {
-		super(message);
-	}
-
-	public PlayerLoggedOutException(Throwable cause) {
-		super(cause);
-	}
-	
-	/**
-	 * Construct an exception from a formatted message.
-	 * @param message - the message to format.
-	 * @param params - parameters.
-	 * @return The formated exception
-	 */
-	public static PlayerLoggedOutException fromFormat(String message, Object... params) {
-		return new PlayerLoggedOutException(String.format(message, params));
-	}
-}

src/main/java/com/comphenix/protocol/injector/PluginVerifier.java

@@ -6,6 +6,7 @@ import java.util.List;
 import java.util.Set;
 import java.util.logging.Level;
 
+import com.google.common.collect.ImmutableSet;
 import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.PluginLoadOrder;
 
@@ -55,12 +56,12 @@ class PluginVerifier {
 	/**
 	 * Contains a list of plugins that will detect and use ProtocolLib dynamically, instead of relying on the dependency system.
 	 */
-	private static final Set<String> DYNAMIC_DEPENDENCY = Sets.newHashSet("mcore", "MassiveCore");
+	private static final Set<String> DYNAMIC_DEPENDENCY = ImmutableSet.of("mcore", "MassiveCore");
 	
 	/**
 	 * Set of plugins that have been loaded after ProtocolLib.
 	 */
-	private final Set<String> loadedAfter = new HashSet<String>();
+	private final Set<String> loadedAfter = new HashSet<>();
 	
 	/**
 	 * Reference to ProtocolLib.
@@ -201,7 +202,7 @@ class PluginVerifier {
 		if (list == null)
 			return Collections.emptySet();
 		else
-			return Sets.newHashSet(list);
+			return new HashSet<>(list);
 	}
 	
 	// Avoid cycles. DFS.

src/main/java/com/comphenix/protocol/injector/PrioritizedListener.java

@@ -50,7 +50,7 @@ public class PrioritizedListener<TListener> implements Comparable<PrioritizedLis
 	@Override
 	public boolean equals(Object obj) {
 		// We only care about the listener - priority itself should not make a difference
-	    if(obj instanceof PrioritizedListener){
+	    if (obj instanceof PrioritizedListener) {
 	        final PrioritizedListener<TListener> other = (PrioritizedListener<TListener>) obj;
 	        return Objects.equal(listener, other.listener);
 	    } else {

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

@@ -17,17 +17,25 @@
 
 package com.comphenix.protocol.injector;
 
+import java.util.ArrayList;
 import java.util.Collection;
+import java.util.List;
+import java.util.logging.Level;
 
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.concurrency.AbstractConcurrentListenerMultimap;
 import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.events.ListenerPriority;
+import com.comphenix.protocol.events.PacketContainer;
 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 javax.annotation.Nullable;
+
 /**
  * Registry of synchronous packet listeners.
  * 
@@ -108,14 +116,12 @@ public final class SortedPacketListenerList extends AbstractConcurrentListenerMu
 	 * @param event - the related packet event.
 	 * @param element - the listener to invoke.
 	 */
-	private final void invokeReceivingListener(ErrorReporter reporter, PacketEvent event, PrioritizedListener<PacketListener> element) {
+	private void invokeReceivingListener(ErrorReporter reporter, PacketEvent event, PrioritizedListener<PacketListener> element) {
 		try {
 			event.setReadOnly(element.getPriority() == ListenerPriority.MONITOR);
 			element.getListener().onPacketReceiving(event);
 			
-		} catch (OutOfMemoryError e) {
-			throw e;
-		} catch (ThreadDeath e) {
+		} catch (OutOfMemoryError | ThreadDeath e) {
 			throw e;
 		} catch (Throwable e) {
 			// Minecraft doesn't want your Exception.
@@ -130,73 +136,89 @@ public final class SortedPacketListenerList extends AbstractConcurrentListenerMu
 	 * @param event - the packet event to invoke.
 	 */
 	public void invokePacketSending(ErrorReporter reporter, PacketEvent event) {
-		Collection<PrioritizedListener<PacketListener>> list = getListener(event.getPacketType());
-		
-		if (list == null)
-			return;
-		
-		if (timedManager.isTiming()) {
-			for (PrioritizedListener<PacketListener> element : list) {
-				TimedTracker tracker = timedManager.getTracker(element.getListener(), ListenerType.SYNC_SERVER_SIDE);
-				long token = tracker.beginTracking();
-				
-				// Measure and record the execution time
-				invokeSendingListener(reporter, event, element);
-				tracker.endTracking(token, event.getPacketType());
-			}
-		} else {
-			for (PrioritizedListener<PacketListener> element : list) {
-				invokeSendingListener(reporter, event, element);
-			}
-		}
+		invokePacketSending(reporter, event, null);
 	}
 	
 	/**
 	 * Invokes the given packet event for every registered listener of the given priority.
 	 * @param reporter - the error reporter that will be used to inform about listener exceptions.
 	 * @param event - the packet event to invoke.
-	 * @param priorityFilter - the required priority for a listener to be invoked.
+	 * @param priorityFilter - the priority for a listener to be invoked. If null is provided, every registered listener will be invoked
 	 */
-	public void invokePacketSending(ErrorReporter reporter, PacketEvent event, ListenerPriority priorityFilter) {
+	public void invokePacketSending(ErrorReporter reporter, PacketEvent event, @Nullable ListenerPriority priorityFilter) {
+		invokeUnpackedPacketSending(reporter, event, priorityFilter);
+		if (event.getPacketType() == PacketType.Play.Server.BUNDLE && !event.isCancelled()) {
+			// unpack the bundle and invoke for each packet in the bundle
+			Iterable<PacketContainer> packets = event.getPacket().getPacketBundles().read(0);
+			List<PacketContainer> outPackets = new ArrayList<>();
+			for (PacketContainer subPacket : packets) {
+				if(subPacket == null) {
+					ProtocolLibrary.getPlugin().getLogger().log(Level.WARNING, "Failed to invoke packet event " + (priorityFilter == null ? "" : ("with priority " + priorityFilter)) + " in bundle because bundle contains null packet: " + packets, new Throwable());
+					continue;
+				}
+				PacketEvent subPacketEvent = PacketEvent.fromServer(this, subPacket, event.getNetworkMarker(), event.getPlayer());
+				invokeUnpackedPacketSending(reporter, subPacketEvent, priorityFilter);
+
+				if (!subPacketEvent.isCancelled()) {
+					// if the packet event has been cancelled, the packet will be removed from the bundle
+					PacketContainer packet = subPacketEvent.getPacket();
+					if(packet == null) {
+						ProtocolLibrary.getPlugin().getLogger().log(Level.WARNING, "null packet container returned for " + subPacketEvent, new Throwable());
+					} else if(packet.getHandle() == null) {
+						ProtocolLibrary.getPlugin().getLogger().log(Level.WARNING, "null packet handle returned for " + subPacketEvent, new Throwable());
+					} else {
+						outPackets.add(packet);
+					}
+				}
+			}
+
+			if (packets.iterator().hasNext()) {
+				event.getPacket().getPacketBundles().write(0, outPackets);
+			} else {
+				// cancel entire packet if each individual packet has been cancelled
+				event.setCancelled(true);
+			}
+		}
+	}
+
+	private void invokeUnpackedPacketSending(ErrorReporter reporter, PacketEvent event, @org.jetbrains.annotations.Nullable ListenerPriority priorityFilter) {
 		Collection<PrioritizedListener<PacketListener>> list = getListener(event.getPacketType());
-		
+
 		if (list == null)
 			return;
-		
+
 		if (timedManager.isTiming()) {
 			for (PrioritizedListener<PacketListener> element : list) {
-				if (element.getPriority() == priorityFilter) {
-				TimedTracker tracker = timedManager.getTracker(element.getListener(), ListenerType.SYNC_SERVER_SIDE);
-				long token = tracker.beginTracking();
-				
-				// Measure and record the execution time
-				invokeSendingListener(reporter, event, element);
-				tracker.endTracking(token, event.getPacketType());
+				if (priorityFilter == null || element.getPriority() == priorityFilter) {
+					TimedTracker tracker = timedManager.getTracker(element.getListener(), ListenerType.SYNC_SERVER_SIDE);
+					long token = tracker.beginTracking();
+
+					// Measure and record the execution time
+					invokeSendingListener(reporter, event, element);
+					tracker.endTracking(token, event.getPacketType());
 				}
 			}
 		} else {
 			for (PrioritizedListener<PacketListener> element : list) {
-				if (element.getPriority() == priorityFilter) {
+				if (priorityFilter == null || element.getPriority() == priorityFilter) {
 					invokeSendingListener(reporter, event, element);
 				}
 			}
 		}
 	}
-	
+
 	/**
 	 * Invoke a particular sending listener.
 	 * @param reporter - the error reporter.
 	 * @param event - the related packet event.
 	 * @param element - the listener to invoke.
 	 */
-	private final void invokeSendingListener(ErrorReporter reporter, PacketEvent event, PrioritizedListener<PacketListener> element) {
+	private void invokeSendingListener(ErrorReporter reporter, PacketEvent event, PrioritizedListener<PacketListener> element) {
 		try {
 			event.setReadOnly(element.getPriority() == ListenerPriority.MONITOR);
 			element.getListener().onPacketSending(event);
 			
-		} catch (OutOfMemoryError e) {
-			throw e;
-		} catch (ThreadDeath e) {
+		} catch (OutOfMemoryError | ThreadDeath e) {
 			throw e;
 		} catch (Throwable e) {
 			// Minecraft doesn't want your Exception.

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

@@ -17,123 +17,199 @@
 
 package com.comphenix.protocol.injector;
 
-import java.util.HashSet;
-import java.util.Set;
+import java.security.PublicKey;
+import java.util.Map;
+import java.util.Objects;
 import java.util.concurrent.ConcurrentHashMap;
-import java.util.concurrent.ConcurrentMap;
+import java.util.function.Supplier;
 
 import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.injector.packet.PacketRegistry;
 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;
+import com.comphenix.protocol.reflect.accessors.Accessors;
+import com.comphenix.protocol.reflect.accessors.ConstructorAccessor;
 import com.comphenix.protocol.reflect.instances.DefaultInstances;
+import com.comphenix.protocol.utility.ByteBuddyFactory;
+import com.comphenix.protocol.utility.MinecraftMethods;
 import com.comphenix.protocol.utility.MinecraftReflection;
+import com.comphenix.protocol.utility.MinecraftVersion;
+import com.comphenix.protocol.utility.ZeroBuffer;
+import com.comphenix.protocol.wrappers.WrappedChatComponent;
+import com.google.common.base.Preconditions;
+import io.netty.buffer.ByteBuf;
+import net.bytebuddy.dynamic.DynamicType;
+import net.bytebuddy.dynamic.loading.ClassLoadingStrategy.Default;
+import net.bytebuddy.implementation.FixedValue;
+import net.bytebuddy.matcher.ElementMatchers;
 
 /**
  * Caches structure modifiers.
+ *
  * @author Kristian
  */
 public class StructureCache {
-	// Structure modifiers
-	private static ConcurrentMap<PacketType, StructureModifier<Object>> structureModifiers = new ConcurrentHashMap<>();
 
-	private static Set<PacketType> compiling = new HashSet<>();
+	// Structure modifiers
+	private static final Map<Class<?>, Supplier<Object>> PACKET_INSTANCE_CREATORS = new ConcurrentHashMap<>();
+	private static final Map<PacketType, StructureModifier<Object>> STRUCTURE_MODIFIER_CACHE = new ConcurrentHashMap<>();
+
+	// packet data serializer which always returns an empty nbt tag compound
+	private static final Object TRICK_INIT_LOCK = new Object();
+	private static boolean TRICK_TRIED = false;
+
+	private static ConstructorAccessor TRICKED_DATA_SERIALIZER_BASE;
+	private static ConstructorAccessor TRICKED_DATA_SERIALIZER_JSON;
+
+	public static Object newPacket(Class<?> packetClass) {
+		Supplier<Object> packetConstructor = PACKET_INSTANCE_CREATORS.computeIfAbsent(packetClass, clazz -> {
+			// prefer construction via PacketDataSerializer constructor on 1.17 and above
+			if (MinecraftVersion.CAVES_CLIFFS_1.atOrAbove()) {
+				ConstructorAccessor serializerAccessor = Accessors.getConstructorAccessorOrNull(
+						clazz,
+						MinecraftReflection.getPacketDataSerializerClass());
+				if (serializerAccessor != null) {
+					// check if the method is possible
+					if (tryInitTrickDataSerializer()) {
+						try {
+							// first try with the base accessor
+							Object serializer = TRICKED_DATA_SERIALIZER_BASE.invoke(new ZeroBuffer());
+							serializerAccessor.invoke(serializer); // throwaway instance, for testing
+
+							// method is working
+							return () -> serializerAccessor.invoke(serializer);
+						} catch (Exception exception) {
+							try {
+								// try with the json accessor
+								Object serializer = TRICKED_DATA_SERIALIZER_JSON.invoke(new ZeroBuffer());
+								serializerAccessor.invoke(serializer); // throwaway instance, for testing
+
+								// method is working
+								return () -> serializerAccessor.invoke(serializer);
+							} catch (Exception ignored) {
+								// shrug, fall back to default behaviour
+							}
+						}
+					}
+				}
+			}
+
+			// try via DefaultInstances as fallback
+			return () -> {
+				Object packetInstance = DefaultInstances.DEFAULT.create(clazz);
+				Objects.requireNonNull(packetInstance, "Unable to create packet instance for class " + clazz);
+				return packetInstance;
+			};
+		});
+		return packetConstructor.get();
+	}
 
 	/**
 	 * Creates an empty Minecraft packet of the given type.
+	 *
 	 * @param type - packet type.
 	 * @return Created packet.
 	 */
 	public static Object newPacket(PacketType type) {
-		Class<?> clazz = PacketRegistry.getPacketClassFromType(type, true);
-
-		// Check the return value
-		if (clazz != null) {
-			// TODO: Optimize DefaultInstances
-			Object result = DefaultInstances.DEFAULT.create(clazz);
-
-			if (result == null) {
-				throw new IllegalArgumentException("Failed to create packet for type: " + type);
-			}
-
-			return result;
-		}
-		throw new IllegalArgumentException("Cannot find associated packet class: " + type);
-	}
-
-	/**
-	 * Retrieve a cached structure modifier for the given packet type.
-	 * @param type - packet type.
-	 * @return A structure modifier.
-	 */
-	public static StructureModifier<Object> getStructure(PacketType type) {
-		// Compile structures by default
-		return getStructure(type, true);
+		return newPacket(PacketRegistry.getPacketClassFromType(type));
 	}
 
 	/**
 	 * Retrieve a cached structure modifier given a packet type.
+	 *
 	 * @param packetType - packet type.
 	 * @return A structure modifier.
 	 */
 	public static StructureModifier<Object> getStructure(Class<?> packetType) {
-		// Compile structures by default
-		return getStructure(packetType, true);
-	}
-
-	/**
-	 * Retrieve a cached structure modifier given a packet type.
-	 * @param packetType - packet type.
-	 * @param compile - whether or not to asynchronously compile the structure modifier.
-	 * @return A structure modifier.
-	 */
-	public static StructureModifier<Object> getStructure(Class<?> packetType, boolean compile) {
 		// Get the ID from the class
-		return getStructure(PacketRegistry.getPacketType(packetType), compile);
+		PacketType type = PacketRegistry.getPacketType(packetType);
+		Preconditions.checkNotNull(type, "No packet type associated with " + packetType);
+		return getStructure(type);
 	}
 
 	/**
 	 * Retrieve a cached structure modifier for the given packet type.
-	 * @param type - packet type.
-	 * @param compile - whether or not to asynchronously compile the structure modifier.
+	 *
+	 * @param packetType - packet type.
 	 * @return A structure modifier.
 	 */
-	public static StructureModifier<Object> getStructure(final PacketType type, boolean compile) {
-		StructureModifier<Object> result = structureModifiers.get(type);
+	public static StructureModifier<Object> getStructure(final PacketType packetType) {
+		Preconditions.checkNotNull(packetType, "type cannot be null");
 
-		// 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>(
-					PacketRegistry.getPacketClassFromType(type, true), MinecraftReflection.getPacketClass(), true);
+		return STRUCTURE_MODIFIER_CACHE.computeIfAbsent(packetType, type -> {
+			Class<?> packetClass = PacketRegistry.getPacketClassFromType(type);
 
-			result = structureModifiers.putIfAbsent(type, value);
-
-			// We may end up creating multiple modifiers, but we'll agree on which to use
-			if (result == null) {
-				result = value;
+			// We need to map the Bundle Delimiter to the synthetic bundle packet which contains a list of all packets in a bundle
+			if (MinecraftReflection.isBundleDelimiter(packetClass)) {
+				packetClass = MinecraftReflection.getPackedBundlePacketClass().get();
 			}
+
+			return new StructureModifier<>(packetClass, MinecraftReflection.getPacketClass(), true);
+		});
+	}
+
+	/**
+	 * Returns a new mocked null data serializer instance, if possible.
+	 *
+	 * @return a new null data serializer instance.
+	 */
+	public static Object newNullDataSerializer() {
+		tryInitTrickDataSerializer();
+		return TRICKED_DATA_SERIALIZER_BASE.invoke(new ZeroBuffer());
+	}
+
+	/**
+	 * Creates a packet data serializer sub-class if needed to allow the fixed read of a NbtTagCompound because of a
+	 * null check in the MapChunk packet constructor.
+	 */
+	public static boolean tryInitTrickDataSerializer() {
+		if (TRICK_TRIED) {
+			return TRICKED_DATA_SERIALIZER_BASE != null;
 		}
 
-		// Automatically compile the structure modifier
-		if (compile && !(result instanceof CompiledStructureModifier)) {
-			// Compilation is many orders of magnitude slower than synchronization
-			synchronized (compiling) {
-				final BackgroundCompiler compiler = BackgroundCompiler.getInstance();
-
-				if (!compiling.contains(type) && compiler != null) {
-					compiler.scheduleCompilation(result, new CompileListener<Object>() {
-						@Override
-						public void onCompiled(StructureModifier<Object> compiledModifier) {
-							structureModifiers.put(type, compiledModifier);
-						}
-					});
-					compiling.add(type);
-				}
+		synchronized (TRICK_INIT_LOCK) {
+			if (TRICK_TRIED) {
+				return TRICKED_DATA_SERIALIZER_BASE != null;
 			}
+
+			try {
+				// create an empty instance of a nbt tag compound / text compound that we can re-use when needed
+				Object textCompound = WrappedChatComponent.fromText("").getHandle();
+				Object compound = Accessors.getConstructorAccessor(MinecraftReflection.getNBTCompoundClass()).invoke();
+				// base builder which intercepts a few methods
+				DynamicType.Builder<?> baseBuilder = ByteBuddyFactory.getInstance()
+						.createSubclass(MinecraftReflection.getPacketDataSerializerClass())
+						.name(MinecraftMethods.class.getPackage().getName() + ".ProtocolLibTricksNmsDataSerializerBase")
+						.method(ElementMatchers.returns(MinecraftReflection.getNBTCompoundClass())
+								.and(ElementMatchers.takesArguments(MinecraftReflection.getNBTReadLimiterClass())))
+						.intercept(FixedValue.value(compound))
+						.method(ElementMatchers.returns(MinecraftReflection.getIChatBaseComponentClass()))
+						.intercept(FixedValue.value(textCompound))
+						.method(ElementMatchers.returns(PublicKey.class).and(ElementMatchers.takesNoArguments()))
+						.intercept(FixedValue.nullValue());
+				Class<?> serializerBase = baseBuilder.make()
+						.load(ByteBuddyFactory.getInstance().getClassLoader(), Default.INJECTION)
+						.getLoaded();
+				TRICKED_DATA_SERIALIZER_BASE = Accessors.getConstructorAccessor(serializerBase, ByteBuf.class);
+
+				// extended builder which intercepts the read string method as well
+				Class<?> withStringIntercept = baseBuilder
+						.name(MinecraftMethods.class.getPackage().getName() + ".ProtocolLibTricksNmsDataSerializerJson")
+						.method(ElementMatchers.returns(String.class).and(ElementMatchers.takesArguments(int.class)))
+						.intercept(FixedValue.value("{}"))
+						.make()
+						.load(ByteBuddyFactory.getInstance().getClassLoader(), Default.INJECTION)
+						.getLoaded();
+				TRICKED_DATA_SERIALIZER_JSON = Accessors.getConstructorAccessor(withStringIntercept, ByteBuf.class);
+
+				// worked
+				return true;
+			} catch (Exception ignored) {
+			} finally {
+				TRICK_TRIED = true;
+			}
+
+			// didn't work
+			return false;
 		}
-		return result;
 	}
 }

src/main/java/com/comphenix/protocol/injector/netty/AbstractPacketInjector.java

@@ -1,54 +0,0 @@
-package com.comphenix.protocol.injector.netty;
-
-import java.util.Set;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.concurrency.PacketTypeSet;
-import com.comphenix.protocol.events.ListenerOptions;
-import com.comphenix.protocol.injector.packet.PacketInjector;
-
-public abstract class AbstractPacketInjector implements PacketInjector {
-	private PacketTypeSet reveivedFilters;
-	
-	public AbstractPacketInjector(PacketTypeSet reveivedFilters) {
-		this.reveivedFilters = reveivedFilters;
-	}
-
-	@Override
-	public boolean isCancelled(Object packet) {
-		// No, it's never cancelled
-		return false;
-	}
-
-	@Override
-	public void setCancelled(Object packet, boolean cancelled) {
-		throw new UnsupportedOperationException();
-	}
-
-	@Override
-	public boolean addPacketHandler(PacketType type, Set<ListenerOptions> options) {
-		reveivedFilters.addType(type);
-		return true;
-	}
-
-	@Override
-	public boolean removePacketHandler(PacketType type) {
-		reveivedFilters.removeType(type);
-		return true;
-	}
-
-	@Override
-	public boolean hasPacketHandler(PacketType type) {
-		return reveivedFilters.contains(type);
-	}
-
-	@Override
-	public Set<PacketType> getPacketHandlers() {
-		return reveivedFilters.values();
-	}
-
-	@Override
-	public void cleanupAll() {
-		reveivedFilters.clear();
-	}
-}

src/main/java/com/comphenix/protocol/injector/netty/AbstractPlayerHandler.java

@@ -1,83 +0,0 @@
-package com.comphenix.protocol.injector.netty;
-
-import java.io.DataInputStream;
-import java.util.Set;
-
-import org.bukkit.entity.Player;
-
-import com.comphenix.protocol.PacketType;
-import com.comphenix.protocol.concurrency.PacketTypeSet;
-import com.comphenix.protocol.events.ListenerOptions;
-import com.comphenix.protocol.events.PacketListener;
-import com.comphenix.protocol.injector.GamePhase;
-import com.comphenix.protocol.injector.PlayerInjectHooks;
-import com.comphenix.protocol.injector.player.PlayerInjectionHandler;
-
-public abstract class AbstractPlayerHandler implements PlayerInjectionHandler {
-	protected PacketTypeSet sendingFilters;
-
-	public AbstractPlayerHandler(PacketTypeSet sendingFilters) {
-		this.sendingFilters = sendingFilters;
-	}
-
-	@Override
-	public void setPlayerHook(GamePhase phase, PlayerInjectHooks playerHook) {
-		throw new UnsupportedOperationException("This is not needed in Spigot.");
-	}
-
-	@Override
-	public void setPlayerHook(PlayerInjectHooks playerHook) {
-		throw new UnsupportedOperationException("This is not needed in Spigot.");
-	}
-
-	@Override
-	public void addPacketHandler(PacketType type, Set<ListenerOptions> options) {
-		sendingFilters.addType(type);
-	}
-
-	@Override
-	public void removePacketHandler(PacketType type) {
-		sendingFilters.removeType(type);
-	}
-
-	@Override
-	public Set<PacketType> getSendingFilters() {
-		return sendingFilters.values();
-	}
-
-	@Override
-	public void close() {
-		sendingFilters.clear();
-	}
-
-	@Override
-	public PlayerInjectHooks getPlayerHook(GamePhase phase) {
-		return PlayerInjectHooks.NETWORK_SERVER_OBJECT;
-	}
-
-	@Override
-	public boolean canRecievePackets() {
-		return true;
-	}
-
-	@Override
-	public PlayerInjectHooks getPlayerHook() {
-		// Pretend that we do
-		return PlayerInjectHooks.NETWORK_SERVER_OBJECT;
-	}
-
-	@Override
-	public Player getPlayerByConnection(DataInputStream inputStream) throws InterruptedException {
-		throw new UnsupportedOperationException("This is not needed in Spigot.");
-	}
-
-	@Override
-	public void checkListener(PacketListener listener) {
-		// They're all fine!
-	}
-
-	@Override
-	public void checkListener(Set<PacketListener> listeners) {
-		// Yes, really
-	}
-}

src/main/java/com/comphenix/protocol/injector/netty/BootstrapList.java

@@ -1,234 +0,0 @@
-/**
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2015 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.injector.netty;
-
-import io.netty.channel.Channel;
-import io.netty.channel.ChannelFuture;
-import io.netty.channel.ChannelHandler;
-
-import java.util.Collection;
-import java.util.Iterator;
-import java.util.List;
-import java.util.ListIterator;
-import java.util.concurrent.Callable;
-
-import com.google.common.collect.Lists;
-
-public class BootstrapList implements List<Object> {
-	private List<Object> delegate;
-	private ChannelHandler handler;
-	
-	/**
-	 * Construct a new bootstrap list.
-	 * @param delegate - the delegate.
-	 * @param handler - the channel handler to add.
-	 */
-	public BootstrapList(List<Object> delegate, ChannelHandler handler) {
-		this.delegate = delegate;
-		this.handler = handler;
-		
-		// Process all existing bootstraps
-		for (Object item : this) {
-			processElement(item);
-		}
-	}
-
-	@Override
-	public synchronized boolean add(Object element) {
-		processElement(element);
-		return delegate.add(element);
-	}
-	
-	@Override
-	public synchronized boolean addAll(Collection<? extends Object> collection) {
-		List<Object> copy = Lists.newArrayList(collection);
-		
-		// Process the collection before we pass it on
-		for (Object element : copy) {
-			processElement(element);
-		}
-		return delegate.addAll(copy);
-	}
-	
-	@Override
-	public synchronized Object set(int index, Object element) {
-		Object old = delegate.set(index, element);
-		
-		// Handle the old future, and the newly inserted future
-		if (old != element) {
-			unprocessElement(old);
-			processElement(element);
-		}
-		return old;
-	}
-	
-	/**
-	 * Process a single element.
-	 * @param element - the element.
-	 */
-	protected void processElement(Object element) {
-		if (element instanceof ChannelFuture) {
-			processBootstrap((ChannelFuture) element);
-		}
-	}
-	
-	/**
-	 * Unprocess a single element.
-	 * @param element - the element to unprocess.
-	 */
-	protected void unprocessElement(Object element) {
-		if (element instanceof ChannelFuture) {
-			unprocessBootstrap((ChannelFuture) element);
-		}
-	}
-	
-	/**
-	 * Process a single channel future.
-	 * @param future - the future.
-	 */
-	protected void processBootstrap(ChannelFuture future) {
-		// Important: Must be addFirst()
-		future.channel().pipeline().addFirst(handler);
-	}
-	
-	/**
-	 * Revert any changes we made to the channel future.
-	 * @param future - the future.
-	 */
-	protected void unprocessBootstrap(ChannelFuture future) {
-		final Channel channel = future.channel();
-		
-		// For thread safety - see ChannelInjector.close()
-		channel.eventLoop().submit(new Callable<Object>() {
-			@Override
-			public Object call() throws Exception {
-				channel.pipeline().remove(handler);
-				return null;
-			}
-		});
-	}
-	
-	/**
-	 * Close and revert all changes.
-	 */
-	public synchronized void close() {
-		for (Object element : this)
-			unprocessElement(element);
-	}
-
-	// Boiler plate
-	@Override
-	public synchronized int size() {
-		return delegate.size();
-	}
-
-	@Override
-	public synchronized boolean isEmpty() {
-		return delegate.isEmpty();
-	}
-
-	@Override
-	public boolean contains(Object o) {
-		return delegate.contains(o);
-	}
-
-	@Override
-	public synchronized Iterator<Object> iterator() {
-		return delegate.iterator();
-	}
-
-	@Override
-	public synchronized Object[] toArray() {
-		return delegate.toArray();
-	}
-
-	@Override
-	public synchronized <T> T[] toArray(T[] a) {
-		return delegate.toArray(a);
-	}
-
-	@Override
-	public synchronized boolean remove(Object o) {
-		return delegate.remove(o);
-	}
-
-	@Override
-	public synchronized boolean containsAll(Collection<?> c) {
-		return delegate.containsAll(c);
-	}
-
-	@Override
-	public synchronized boolean addAll(int index, Collection<? extends Object> c) {
-		return delegate.addAll(index, c);
-	}
-
-	@Override
-	public synchronized boolean removeAll(Collection<?> c) {
-		return delegate.removeAll(c);
-	}
-
-	@Override
-	public synchronized boolean retainAll(Collection<?> c) {
-		return delegate.retainAll(c);
-	}
-
-	@Override
-	public synchronized void clear() {
-		delegate.clear();
-	}
-
-	@Override
-	public synchronized Object get(int index) {
-		return delegate.get(index);
-	}
-
-	@Override
-	public synchronized void add(int index, Object element) {
-		delegate.add(index, element);
-	}
-
-	@Override
-	public synchronized Object remove(int index) {
-		return delegate.remove(index);
-	}
-
-	@Override
-	public synchronized int indexOf(Object o) {
-		return delegate.indexOf(o);
-	}
-
-	@Override
-	public synchronized int lastIndexOf(Object o) {
-		return delegate.lastIndexOf(o);
-	}
-
-	@Override
-	public synchronized ListIterator<Object> listIterator() {
-		return delegate.listIterator();
-	}
-
-	@Override
-	public synchronized ListIterator<Object> listIterator(int index) {
-		return delegate.listIterator(index);
-	}
-
-	@Override
-	public synchronized List<Object> subList(int fromIndex, int toIndex) {
-		return delegate.subList(fromIndex, toIndex);
-	}
-	// End boiler plate
-}

src/main/java/com/comphenix/protocol/injector/netty/ChannelListener.java

@@ -1,66 +1,70 @@
 package com.comphenix.protocol.injector.netty;
 
+import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.error.ErrorReporter;
 import com.comphenix.protocol.events.NetworkMarker;
 import com.comphenix.protocol.events.PacketEvent;
 
 /**
  * Represents a listener for received or sent packets.
+ *
  * @author Kristian
  */
 public interface ChannelListener {
+
 	/**
 	 * Invoked when a packet is being sent to the client.
 	 * <p>
 	 * This is invoked on the main thread.
+	 *
 	 * @param injector - the channel injector.
-	 * @param packet - the packet.
-	 * @param marker - the network marker.
+	 * @param packet   - the packet.
+	 * @param marker   - the network marker.
 	 * @return The packet even that was passed to the listeners, with a possible packet change, or NULL.
 	 */
-	public PacketEvent onPacketSending(Injector injector, Object packet, NetworkMarker marker);
-	
+	PacketEvent onPacketSending(Injector injector, Object packet, NetworkMarker marker);
+
 	/**
 	 * Invoked when a packet is being received from a client.
 	 * <p>
 	 * This is invoked on an asynchronous worker thread.
+	 *
 	 * @param injector - the channel injector.
-	 * @param packet - the packet.
-	 * @param marker - the associated network marker, if any.
+	 * @param packet   - the packet.
+	 * @param marker   - the associated network marker, if any.
 	 * @return The packet even that was passed to the listeners, with a possible packet change, or NULL.
 	 */
-	public PacketEvent onPacketReceiving(Injector injector, Object packet, NetworkMarker marker);
-	
+	PacketEvent onPacketReceiving(Injector injector, Object packet, NetworkMarker marker);
+
 	/**
 	 * Determine if there is a packet listener for the given packet.
+	 *
 	 * @param packetClass - the packet class to check.
 	 * @return TRUE if there is such a listener, FALSE otherwise.
 	 */
-	public boolean hasListener(Class<?> packetClass);
-	
+	boolean hasListener(Class<?> packetClass);
+
 	/**
 	 * Determine if there is a server packet listener that must be executed on the main thread.
+	 *
 	 * @param packetClass - the packet class to check.
 	 * @return TRUE if there is, FALSE otherwise.
 	 */
-	public boolean hasMainThreadListener(Class<?> packetClass);
-	
-	/**
-	 * Determine if we need the buffer data of a given client side packet.
-	 * @param packetClass - the packet class.
-	 * @return TRUE if we do, FALSE otherwise.
-	 */
-	public boolean includeBuffer(Class<?> packetClass);
-	
+	boolean hasMainThreadListener(Class<?> packetClass);
+
+	boolean hasMainThreadListener(PacketType type);
+
 	/**
 	 * Retrieve the current error reporter.
+	 *
 	 * @return The error reporter.
 	 */
-	public ErrorReporter getReporter();
-	
-    /**
-     * Determine if debug mode is enabled.
-     * @return TRUE if it is, FALSE otherwise.
-     */
+	ErrorReporter getReporter();
+
+	/**
+	 * Determine if debug mode is enabled.
+	 *
+	 * @return TRUE if it is, FALSE otherwise.
+	 */
 	boolean isDebug();
 }

src/main/java/com/comphenix/protocol/injector/netty/ChannelProxy.java

@@ -1,352 +0,0 @@
-/**
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2015 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.injector.netty;
-
-import java.lang.reflect.Field;
-import java.net.SocketAddress;
-import java.util.Map;
-import java.util.concurrent.Callable;
-
-import com.comphenix.protocol.reflect.accessors.Accessors;
-import com.comphenix.protocol.reflect.accessors.FieldAccessor;
-import com.google.common.collect.Maps;
-
-import io.netty.buffer.ByteBufAllocator;
-import io.netty.channel.Channel;
-import io.netty.channel.ChannelConfig;
-import io.netty.channel.ChannelFuture;
-import io.netty.channel.ChannelMetadata;
-import io.netty.channel.ChannelPipeline;
-import io.netty.channel.ChannelProgressivePromise;
-import io.netty.channel.ChannelPromise;
-import io.netty.channel.EventLoop;
-import io.netty.util.Attribute;
-import io.netty.util.AttributeKey;
-
-public abstract class ChannelProxy implements Channel {
-	// Mark that a certain object does not contain a message field
-	private static final FieldAccessor MARK_NO_MESSAGE = new FieldAccessor() {
-		@Override
-        public void set(Object instance, Object value) { }
-		@Override
-        public Object get(Object instance) { return null; }
-		@Override
-        public Field getField() { return null; };
-	};
-
-	// Looking up packets in inner classes
-	private static Map<Class<?>, FieldAccessor> MESSAGE_LOOKUP = Maps.newConcurrentMap();
-
-	// The underlying channel
-	protected Channel delegate;
-	protected Class<?> messageClass;
-
-	// Event loop proxy
-	private transient EventLoopProxy loopProxy;
-
-	public ChannelProxy(Channel delegate, Class<?> messageClass) {
-		this.delegate = delegate;
-		this.messageClass = messageClass;
-	}
-
-	/**
-	 * Invoked when a packet is scheduled for transmission in the event loop.
-	 * @param <T> Type
-	 * @param callable - callable to schedule for execution.
-	 * @param packetAccessor - accessor for modifying the packet in the callable.
-	 * @return The callable that will be scheduled, or NULL to cancel.
-	 */
-	protected abstract <T> Callable<T> onMessageScheduled(Callable<T> callable, FieldAccessor packetAccessor);
-
-	/**
-	 * Invoked when a packet is scheduled for transmission in the event loop.
-	 * @param runnable - the runnable that contains a packet to be scheduled.
-	 * @param packetAccessor - accessor for modifying the packet in the runnable.
-	 * @return The runnable that will be scheduled, or NULL to cancel.
-	 */
-	protected abstract Runnable onMessageScheduled(Runnable runnable, FieldAccessor packetAccessor);
-
-	@Override
-    public <T> Attribute<T> attr(AttributeKey<T> paramAttributeKey) {
-		return delegate.attr(paramAttributeKey);
-	}
-
-	@Override
-    public ChannelFuture bind(SocketAddress paramSocketAddress) {
-		return delegate.bind(paramSocketAddress);
-	}
-
-	@Override
-    public ChannelPipeline pipeline() {
-		return delegate.pipeline();
-	}
-
-	@Override
-    public ChannelFuture connect(SocketAddress paramSocketAddress) {
-		return delegate.connect(paramSocketAddress);
-	}
-
-	@Override
-    public ByteBufAllocator alloc() {
-		return delegate.alloc();
-	}
-
-	@Override
-    public ChannelPromise newPromise() {
-		return delegate.newPromise();
-	}
-
-	@Override
-    public EventLoop eventLoop() {
-		if (loopProxy == null) {
-			loopProxy = new EventLoopProxy() {
-				@Override
-				protected EventLoop getDelegate() {
-					return delegate.eventLoop();
-				}
-
-				@Override
-				protected Runnable schedulingRunnable(final Runnable runnable) {
-					final FieldAccessor accessor = getMessageAccessor(runnable);
-
-					if (accessor != null) {
-						Runnable result = onMessageScheduled(runnable, accessor);;
-						return result != null ? result : getEmptyRunnable();
-					}
-					return runnable;
-				}
-
-				@Override
-				protected <T> Callable<T> schedulingCallable(Callable<T> callable) {
-					FieldAccessor accessor = getMessageAccessor(callable);
-
-					if (accessor != null) {
-						Callable<T> result = onMessageScheduled(callable, accessor);;
-						return result != null ? result : EventLoopProxy.<T>getEmptyCallable();
-					}
-					return callable;
-				}
-			};
-		}
-		return loopProxy;
-	}
-
-	/**
-	 * Retrieve a way to access the packet field of an object.
-	 * @param value - the object.
-	 * @return The packet field accessor, or NULL if not found.
-	 */
-	private FieldAccessor getMessageAccessor(Object value) {
-		Class<?> clazz = value.getClass();
-		FieldAccessor accessor = MESSAGE_LOOKUP.get(clazz);
-
-		if (accessor == null) {
-			try {
-				accessor = Accessors.getFieldAccessor(clazz, messageClass, true);
-			} catch (IllegalArgumentException e) {
-				accessor = MARK_NO_MESSAGE;
-			}
-			// Save the result
-			MESSAGE_LOOKUP.put(clazz, accessor);
-		}
-		return accessor != MARK_NO_MESSAGE ? accessor : null;
-	}
-
-	@Override
-    public ChannelFuture connect(SocketAddress paramSocketAddress1,
-			SocketAddress paramSocketAddress2) {
-		return delegate.connect(paramSocketAddress1, paramSocketAddress2);
-	}
-
-	@Override
-    public ChannelProgressivePromise newProgressivePromise() {
-		return delegate.newProgressivePromise();
-	}
-
-	@Override
-    public Channel parent() {
-		return delegate.parent();
-	}
-
-	@Override
-    public ChannelConfig config() {
-		return delegate.config();
-	}
-
-	@Override
-    public ChannelFuture newSucceededFuture() {
-		return delegate.newSucceededFuture();
-	}
-
-	@Override
-    public boolean isOpen() {
-		return delegate.isOpen();
-	}
-
-	@Override
-    public ChannelFuture disconnect() {
-		return delegate.disconnect();
-	}
-
-	@Override
-    public boolean isRegistered() {
-		return delegate.isRegistered();
-	}
-
-	@Override
-    public ChannelFuture newFailedFuture(Throwable paramThrowable) {
-		return delegate.newFailedFuture(paramThrowable);
-	}
-
-	@Override
-    public ChannelFuture close() {
-		return delegate.close();
-	}
-
-	@Override
-    public boolean isActive() {
-		return delegate.isActive();
-	}
-
-	@Override
-    @Deprecated
-	public ChannelFuture deregister() {
-		return delegate.deregister();
-	}
-
-	@Override
-    public ChannelPromise voidPromise() {
-		return delegate.voidPromise();
-	}
-
-	@Override
-    public ChannelMetadata metadata() {
-		return delegate.metadata();
-	}
-
-	@Override
-    public ChannelFuture bind(SocketAddress paramSocketAddress,
-			ChannelPromise paramChannelPromise) {
-		return delegate.bind(paramSocketAddress, paramChannelPromise);
-	}
-
-	@Override
-    public SocketAddress localAddress() {
-		return delegate.localAddress();
-	}
-
-	@Override
-    public SocketAddress remoteAddress() {
-		return delegate.remoteAddress();
-	}
-
-	@Override
-    public ChannelFuture connect(SocketAddress paramSocketAddress,
-			ChannelPromise paramChannelPromise) {
-		return delegate.connect(paramSocketAddress, paramChannelPromise);
-	}
-
-	@Override
-    public ChannelFuture closeFuture() {
-		return delegate.closeFuture();
-	}
-
-	@Override
-    public boolean isWritable() {
-		return delegate.isWritable();
-	}
-
-	@Override
-    public Channel flush() {
-		return delegate.flush();
-	}
-
-	@Override
-    public ChannelFuture connect(SocketAddress paramSocketAddress1,
-			SocketAddress paramSocketAddress2, ChannelPromise paramChannelPromise) {
-		return delegate.connect(paramSocketAddress1, paramSocketAddress2, paramChannelPromise);
-	}
-
-	@Override
-    public Channel read() {
-		return delegate.read();
-	}
-
-	@Override
-    public Unsafe unsafe() {
-		return delegate.unsafe();
-	}
-
-	@Override
-    public ChannelFuture disconnect(ChannelPromise paramChannelPromise) {
-		return delegate.disconnect(paramChannelPromise);
-	}
-
-	@Override
-    public ChannelFuture close(ChannelPromise paramChannelPromise) {
-		return delegate.close(paramChannelPromise);
-	}
-
-	@Override
-    @Deprecated
-	public ChannelFuture deregister(ChannelPromise paramChannelPromise) {
-		return delegate.deregister(paramChannelPromise);
-	}
-
-	@Override
-    public ChannelFuture write(Object paramObject) {
-		return delegate.write(paramObject);
-	}
-
-	@Override
-    public ChannelFuture write(Object paramObject, ChannelPromise paramChannelPromise) {
-		return delegate.write(paramObject, paramChannelPromise);
-	}
-
-	@Override
-    public ChannelFuture writeAndFlush(Object paramObject, ChannelPromise paramChannelPromise) {
-		return delegate.writeAndFlush(paramObject, paramChannelPromise);
-	}
-
-	@Override
-    public ChannelFuture writeAndFlush(Object paramObject) {
-		return delegate.writeAndFlush(paramObject);
-	}
-
-	@Override
-    public int compareTo(Channel o) {
-		return delegate.compareTo(o);
-	}
-	
-	/* Added in Netty 4.1, seem to be unused
-	public long bytesBeforeUnwritable() {
-		return delegate.bytesBeforeUnwritable();
-	}
-
-	public long bytesBeforeWritable() {
-		return delegate.bytesBeforeWritable();
-	}
-
-	public ChannelId id() {
-		return delegate.id();
-	}
-
-	public <T> boolean hasAttr(AttributeKey<T> key) {
-		return delegate.hasAttr(key);
-	}
-	*/
-}

src/main/java/com/comphenix/protocol/injector/netty/EventLoopProxy.java

@@ -1,265 +0,0 @@
-/**
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2015 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.injector.netty;
-
-import io.netty.channel.Channel;
-import io.netty.channel.ChannelFuture;
-import io.netty.channel.ChannelPromise;
-import io.netty.channel.EventLoop;
-import io.netty.channel.EventLoopGroup;
-import io.netty.util.concurrent.EventExecutor;
-import io.netty.util.concurrent.Future;
-import io.netty.util.concurrent.ProgressivePromise;
-import io.netty.util.concurrent.Promise;
-import io.netty.util.concurrent.ScheduledFuture;
-
-import java.util.Collection;
-import java.util.Iterator;
-import java.util.List;
-import java.util.concurrent.Callable;
-import java.util.concurrent.ExecutionException;
-import java.util.concurrent.TimeUnit;
-import java.util.concurrent.TimeoutException;
-
-/**
- * An event loop proxy.
- * @author Kristian.
- */
-abstract class EventLoopProxy implements EventLoop {
-	private static final Runnable EMPTY_RUNNABLE = new Runnable() {
-		@Override
-		public void run() {
-			// Do nothing
-		}
-	};
-	private static final Callable<?> EMPTY_CALLABLE = new Callable<Object>() {
-		@Override
-		public Object call() throws Exception {
-			return null;
-		};
-	};
-
-	/**
-	 * Retrieve the underlying event loop.
-	 * @return The event loop.
-	 */
-	protected abstract EventLoop getDelegate();
-	
-	/**
-	 * Retrieve a callable that does nothing but return NULL.
-	 * @return The empty callable.
-	 */
-	@SuppressWarnings("unchecked")
-	public static <T> Callable<T> getEmptyCallable() {
-		return (Callable<T>) EMPTY_CALLABLE;
-	}
-	
-	/**
-	 * Retrieve a runnable that does nothing.
-	 * @return A NO-OP runnable.
-	 */
-	public static Runnable getEmptyRunnable() {
-		return EMPTY_RUNNABLE;
-	}
-	
-	/**
-	 * Invoked when a runnable is being scheduled.
-	 * @param runnable - the runnable that is scheduling.
-	 * @return The runnable to schedule instead. Cannot be NULL.
-	 */
-	protected abstract Runnable schedulingRunnable(Runnable runnable);
-
-	/**
-	 * Invoked when a callable is being scheduled.
-	 * @param runnable - the callable that is scheduling.
-	 * @return The callable to schedule instead. Cannot be NULL.
-	 */
-	protected abstract <T> Callable<T> schedulingCallable(Callable<T> callable);
-	
-	@Override
-	public void execute(Runnable command) {
-		getDelegate().execute(schedulingRunnable(command));
-	}
-
-	@Override
-	public <T> Future<T> submit(Callable<T> action) {
-		return getDelegate().submit(schedulingCallable(action));
-	}
-
-	@Override
-	public <T> Future<T> submit(Runnable action, T arg1) {
-		return getDelegate().submit(schedulingRunnable(action), arg1);
-	}
-
-	@Override
-	public Future<?> submit(Runnable action) {
-		return getDelegate().submit(schedulingRunnable(action));
-	}
-	
-	@Override
-	public <V> ScheduledFuture<V> schedule(Callable<V> action, long arg1, TimeUnit arg2) {
-		return getDelegate().schedule(schedulingCallable(action), arg1, arg2);
-	}
-
-	@Override
-	public ScheduledFuture<?> schedule(Runnable action, long arg1, TimeUnit arg2) {
-		return getDelegate().schedule(schedulingRunnable(action), arg1, arg2);
-	}
-
-	@Override
-	public ScheduledFuture<?> scheduleAtFixedRate(Runnable action, long arg1, long arg2, TimeUnit arg3) {
-		return getDelegate().scheduleAtFixedRate(schedulingRunnable(action), arg1, arg2, arg3);
-	}
-
-	@Override
-	public ScheduledFuture<?> scheduleWithFixedDelay(Runnable action, long arg1, long arg2, TimeUnit arg3) {
-		return getDelegate().scheduleWithFixedDelay(schedulingRunnable(action), arg1, arg2, arg3);
-	}
-	
-	// Boiler plate:
-	@Override
-	public boolean awaitTermination(long timeout, TimeUnit unit) throws InterruptedException {
-		return getDelegate().awaitTermination(timeout, unit);
-	}
-
-	@Override
-	public boolean inEventLoop() {
-		return getDelegate().inEventLoop();
-	}
-
-	@Override
-	public boolean inEventLoop(Thread arg0) {
-		return getDelegate().inEventLoop(arg0);
-	}
-
-	@Override
-	public boolean isShutdown() {
-		return getDelegate().isShutdown();
-	}
-
-	@Override
-	public boolean isTerminated() {
-		return getDelegate().isTerminated();
-	}
-
-	@Override
-	public <T> List<java.util.concurrent.Future<T>> invokeAll(Collection<? extends Callable<T>> tasks)
-			throws InterruptedException {
-		return getDelegate().invokeAll(tasks);
-	}
-
-	@Override
-	public <T> List<java.util.concurrent.Future<T>> invokeAll(Collection<? extends Callable<T>> tasks, long timeout,
-			TimeUnit unit) throws InterruptedException {
-		return getDelegate().invokeAll(tasks, timeout, unit);
-	}
-
-	@Override
-	public <T> T invokeAny(Collection<? extends Callable<T>> tasks) throws InterruptedException,
-			ExecutionException {
-		return getDelegate().invokeAny(tasks);
-	}
-
-	@Override
-	public <T> T invokeAny(Collection<? extends Callable<T>> tasks, long timeout, TimeUnit unit)
-			throws InterruptedException, ExecutionException, TimeoutException {
-		return getDelegate().invokeAny(tasks, timeout, unit);
-	}
-
-	@Override
-	public boolean isShuttingDown() {
-		return getDelegate().isShuttingDown();
-	}
-
-	@Override
-	public Iterator<EventExecutor> iterator() {
-		return getDelegate().iterator();
-	}
-
-	@Override
-	public <V> Future<V> newFailedFuture(Throwable arg0) {
-		return getDelegate().newFailedFuture(arg0);
-	}
-
-	@Override
-	public EventLoop next() {
-		return ((EventLoopGroup) getDelegate()).next();
-	}
-	
-	@Override
-	public <V> ProgressivePromise<V> newProgressivePromise() {
-		return getDelegate().newProgressivePromise();
-	}
-
-	@Override
-	public <V> Promise<V> newPromise() {
-		return getDelegate().newPromise();
-	}
-
-	@Override
-	public <V> Future<V> newSucceededFuture(V arg0) {
-		return getDelegate().newSucceededFuture(arg0);
-	}
-	
-	@Override
-	public EventLoopGroup parent() {
-		return getDelegate().parent();
-	}
-
-	@Override
-	public ChannelFuture register(Channel arg0, ChannelPromise arg1) {
-		return getDelegate().register(arg0, arg1);
-	}
-
-	@Override
-	public ChannelFuture register(Channel arg0) {
-		return getDelegate().register(arg0);
-	}
-
-	@Override
-	public Future<?> shutdownGracefully() {
-		return getDelegate().shutdownGracefully();
-	}
-
-	@Override
-	public Future<?> shutdownGracefully(long arg0, long arg1, TimeUnit arg2) {
-		return getDelegate().shutdownGracefully(arg0, arg1, arg2);
-	}
-
-	@Override
-	public Future<?> terminationFuture() {
-		return getDelegate().terminationFuture();
-	}
-	
-	@Override
-	@Deprecated
-	public void shutdown() {
-		getDelegate().shutdown();
-	}
-	
-	@Override
-	@Deprecated
-	public List<Runnable> shutdownNow() {
-		return getDelegate().shutdownNow();
-	}
-
-	/*
-	public ChannelFuture register(ChannelPromise promise) {
-		return getDelegate().register(promise);
-	}
-	*/
-}

src/main/java/com/comphenix/protocol/injector/netty/InjectionFactory.java

@@ -1,236 +0,0 @@
-/**
- *  ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
- *  Copyright (C) 2015 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.injector.netty;
-
-import io.netty.channel.Channel;
-
-import java.util.concurrent.ConcurrentMap;
-
-import javax.annotation.Nonnull;
-
-import org.bukkit.Bukkit;
-import org.bukkit.entity.Player;
-import org.bukkit.plugin.Plugin;
-
-import com.comphenix.protocol.injector.netty.ChannelInjector.ChannelSocketInjector;
-import com.comphenix.protocol.injector.server.SocketInjector;
-import com.comphenix.protocol.injector.server.TemporaryPlayerFactory;
-import com.comphenix.protocol.reflect.FuzzyReflection;
-import com.comphenix.protocol.utility.MinecraftFields;
-import com.comphenix.protocol.utility.MinecraftReflection;
-import com.google.common.collect.MapMaker;
-
-/**
- * Represents an injector factory.
- * <p>
- * Note that the factory will return {@link ClosedInjector} when the factory is closed.
- * @author Kristian
- */
-public class InjectionFactory {
-	// This should work as long as the injectors are, uh, injected
-	private final ConcurrentMap<Player, Injector> playerLookup = new MapMaker().weakKeys().weakValues().makeMap();
-	private final ConcurrentMap<String, Injector> nameLookup = new MapMaker().weakValues().makeMap();
-	
-	// Whether or not the factory is closed
-	private volatile boolean closed;
-	
-	// The current plugin
-	private final Plugin plugin;
-	
-	public InjectionFactory(Plugin plugin) {
-		this.plugin = plugin;
-	}
-	
-	/**
-	 * Retrieve the main plugin associated with this injection factory.
-	 * @return The main plugin.
-	 */
-	public Plugin getPlugin() {
-		return plugin;
-	}
-	
-	/**
-	 * Construct or retrieve a channel injector from an existing Bukkit player.
-	 * @param player - the existing Bukkit player.
-	 * @param listener - the listener.
-	 * @return A new injector, an existing injector associated with this player, or a closed injector.
-	 */
-	@Nonnull
-	public Injector fromPlayer(Player player, ChannelListener listener) {
-		if (closed)
-			return new ClosedInjector(player);
-		Injector injector = playerLookup.get(player);
-		
-		// Find a temporary injector as well
-		if (injector == null)
-			injector = getTemporaryInjector(player);
-		if (injector != null && !injector.isClosed())
-			return injector;
-		
-		Object networkManager = MinecraftFields.getNetworkManager(player);
-		
-		// Must be a temporary Bukkit player
-		if (networkManager == null) {
-			return fromName(player.getName(), player);
-		}
-		Channel channel = FuzzyReflection.getFieldValue(networkManager, Channel.class, true);
-		
-		// See if a channel has already been created
-		injector = (ChannelInjector) ChannelInjector.findChannelHandler(channel, ChannelInjector.class);
-		
-		if (injector != null) {
-			// Update the player instance
-			playerLookup.remove(injector.getPlayer());
-			injector.setPlayer(player);
-		} else {
-			injector = new ChannelInjector(player, networkManager, channel, listener, this);
-		}
-		
-		// Cache injector and return
-		cacheInjector(player, injector);
-		return injector;
-	}
-		
-	/**
-	 * Retrieve a cached injector from a name.
-	 * <p>
-	 * The injector may be NULL if the plugin has been reloaded during a player login.
-	 * @param name - the name.
-	 * @param player - the player.
-	 * @return The cached injector, or a closed injector if it could not be found.
-	 */
-	public Injector fromName(String name, Player player) {
-		if (!closed) {
-			Injector injector = nameLookup.get(name);
-			
-			// We can only retrieve cached injectors
-			if (injector != null) {
-				// Update instance
-				injector.setUpdatedPlayer(player);
-				return injector;
-			}
-		}
-		return new ClosedInjector(player);
-	}
-	
-	/**
-	 * Construct a new channel injector for the given channel.
-	 * @param channel - the channel.
-	 * @param listener - the listener.
-	 * @param playerFactory - a temporary player creator.
-	 * @return The channel injector, or a closed injector.
-	 */
-	@Nonnull
-	public Injector fromChannel(Channel channel, ChannelListener listener, TemporaryPlayerFactory playerFactory) {
-		if (closed)
-			return new ClosedInjector(null);
-		
-		Object networkManager = findNetworkManager(channel);
-		Player temporaryPlayer = playerFactory.createTemporaryPlayer(Bukkit.getServer());
-		ChannelInjector injector = new ChannelInjector(temporaryPlayer, networkManager, channel, listener, this);
-		
-		// Initialize temporary player
-		TemporaryPlayerFactory.setInjectorInPlayer(temporaryPlayer, new ChannelSocketInjector(injector));
-		return injector;
-	}
-	
-	/**
-	 * Invalidate a cached injector.
-	 * @param player - the associated player.
-	 * @return The cached injector, or NULL if nothing was cached.
-	 */
-	public Injector invalidate(Player player) {
-		Injector injector = playerLookup.remove(player);
-		
-		nameLookup.remove(player.getName());
-		return injector;
-	}
-	
-	/**
-	 * Cache an injector by player.
-	 * @param player - the player.
-	 * @param injector - the injector to cache.
-	 * @return The previously cached injector.
-	 */
-	public Injector cacheInjector(Player player, Injector injector) {
-		nameLookup.put(player.getName(), injector);
-		return playerLookup.put(player, injector);
-	}
-	
-	/**
-	 * Cache an injector by name alone.
-	 * @param name - the name to lookup.
-	 * @param injector - the injector.
-	 * @return The cached injector.
-	 */
-	public Injector cacheInjector(String name, Injector injector) {
-		return nameLookup.put(name, injector);
-	}
-	
-	/**
-	 * Retrieve the associated channel injector.
-	 * @param player - the temporary player, or normal Bukkit player.
-	 * @return The associated injector, or NULL if this is a Bukkit player.
-	 */
-	private ChannelInjector getTemporaryInjector(Player player) {
-		SocketInjector injector = TemporaryPlayerFactory.getInjectorFromPlayer(player);
-		
-		if (injector != null) {
-			return ((ChannelSocketInjector) injector).getChannelInjector();
-		}
-		return null;
-	}
-	
-	/**
-	 * Find the network manager in a channel's pipeline.
-	 * @param channel - the channel.
-	 * @return The network manager.
-	 */
-	private Object findNetworkManager(Channel channel) {
-		// Find the network manager
-		Object networkManager = ChannelInjector.findChannelHandler(channel, MinecraftReflection.getNetworkManagerClass());
-		
-		if (networkManager != null)
-			return networkManager;
-		throw new IllegalArgumentException("Unable to find NetworkManager in " + channel);
-	}
-	
-	/**
-	 * Determine if the factory is closed.
-	 * <p>
-	 * If it is, all new injectors will be closed by default.
-	 * @return TRUE if it is closed, FALSE otherwise.
-	 */
-	public boolean isClosed() {
-		return closed;
-	}
-	
-	/**
-	 * Close all injectors created by this factory, and cease the creation of new injections.
-	 */
-	public synchronized void close() {
-		if (!closed) {
-			closed = true;
-			
-			// Close everything
-			for (Injector injector : playerLookup.values())
-				injector.close();
-			for (Injector injector : nameLookup.values())
-				injector.close();
-		}
-	}
-}

src/main/java/com/comphenix/protocol/injector/netty/Injector.java

@@ -1,97 +1,100 @@
 package com.comphenix.protocol.injector.netty;
 
-import org.bukkit.entity.Player;
-
 import com.comphenix.protocol.PacketType.Protocol;
 import com.comphenix.protocol.events.NetworkMarker;
+import org.bukkit.entity.Player;
 
 /**
  * Represents an injected client connection.
+ *
  * @author Kristian
  */
 public interface Injector {
+
 	/**
 	 * Retrieve the current protocol version of the player.
+	 *
 	 * @return Protocol version.
 	 */
-	public abstract int getProtocolVersion();
-	
+	int getProtocolVersion();
+
 	/**
 	 * Inject the current channel.
 	 * <p>
 	 * Note that only active channels can be injected.
+	 *
 	 * @return TRUE if we injected the channel, false if we could not inject or it was already injected.
 	 */
-	public abstract boolean inject();
+	boolean inject();
+
+	void uninject();
 
 	/**
 	 * Close the current injector.
 	 */
-	public abstract void close();
+	void close();
 
 	/**
 	 * Send a packet to a player's client.
-	 * @param packet - the packet to send.
-	 * @param marker - the network marker.
+	 *
+	 * @param packet   - the packet to send.
+	 * @param marker   - the network marker.
 	 * @param filtered - whether or not the packet is filtered.
 	 */
-	public abstract void sendServerPacket(Object packet, NetworkMarker marker, boolean filtered);
+	void sendServerPacket(Object packet, NetworkMarker marker, boolean filtered);
 
-	/**
-	 * Recieve a packet on the server.
-	 * @param packet - the (NMS) packet to send.
-	 */
-	public abstract void recieveClientPacket(Object packet);
+	void receiveClientPacket(Object packet);
 
 	/**
 	 * Retrieve the current protocol state.
+	 *
 	 * @return The current protocol.
 	 */
-	public abstract Protocol getCurrentProtocol();
+	Protocol getCurrentProtocol();
 
 	/**
 	 * Retrieve the network marker associated with a given packet.
+	 *
 	 * @param packet - the packet.
 	 * @return The network marker.
 	 */
-	public abstract NetworkMarker getMarker(Object packet);
+	NetworkMarker getMarker(Object packet);
 
 	/**
 	 * Associate a given network marker with a specific packet.
+	 *
 	 * @param packet - the NMS packet.
 	 * @param marker - the associated marker.
 	 */
-	public abstract void saveMarker(Object packet, NetworkMarker marker);
+	void saveMarker(Object packet, NetworkMarker marker);
 
 	/**
 	 * Retrieve the current player or temporary player associated with the injector.
+	 *
 	 * @return The current player.
 	 */
-	public abstract Player getPlayer();
+	Player getPlayer();
 
 	/**
 	 * Set the current player instance.
+	 *
 	 * @param player - the current player.
 	 */
-	public abstract void setPlayer(Player player);
-	
+	void setPlayer(Player player);
+
+	void disconnect(String message);
+
 	/**
 	 * Determine if the channel has already been injected.
+	 *
 	 * @return TRUE if it has, FALSE otherwise.
 	 */
-	public abstract boolean isInjected();
+	boolean isInjected();
 
 	/**
 	 * Determine if this channel has been closed and cleaned up.
+	 *
 	 * @return TRUE if it has, FALSE otherwise.
 	 */
-	public abstract boolean isClosed();
-
-	/**
-	 * Set the updated player instance.
-	 * <p>
-	 * This will not replace the current instance, but it will allow PacketEvent to provide additional player information.
-	 * @param player - the more up-to-date player.
-	 */
-	public abstract void setUpdatedPlayer(Player player);
+	boolean isClosed();
 }