Sync with master

* Possibility  to send the Supported versions inside the status response packet

* Make lowercase

README.md

@@ -1,7 +1,9 @@
-# ViaVersion 0.8.2
+# ViaVersion 0.8.4
 [![Build Status](https://travis-ci.org/MylesIsCool/ViaVersion.svg?branch=master)](https://travis-ci.org/MylesIsCool/ViaVersion)
 [![Gitter](https://badges.gitter.im/MylesIsCool/ViaVersion.svg)](https://gitter.im/MylesIsCool/ViaVersion)
 
+## This is an experimental branch for 1.10, we do not recommend you to use this on a production server
+
 **Allows the connection of 1.9 clients to 1.8**
 
 This plugin modifies netty to allow connection of 1.9 clients to 1.8,
@@ -18,6 +20,8 @@ Sources:
 
 **wiki.vg** (Protocol info, though I did have to find a lot myself)
 
+**Burger** We use this tool to get protocol and other useful information for new / undocumented Minecraft versions
+
 **OpenNBT** (used for slot rewriting)
 
 
@@ -52,14 +56,13 @@ https://www.spigotmc.org/resources/viaversion.19254/history
 
 ----------
 
-You can find unofficial dev builds here:
+You can find official dev builds here:
 
-**Terrobility's Build Server:** https://ci.terrocidepvp.net/job/ViaVersion/
+**Jenkins:** https://ci.viaversion.com
 
-**sgdc3's Build Server:** http://ci.xephi.fr/job/ViaVersion/
-**sgdc3's Maven:** http://ci.xephi.fr/plugin/repository/everything/
+**JavaDocs:** https://jd.viaversion.com
 
-**JavaDocs:** https://jd.matsv.nl/
+**Maven Repo:** https://repo.viaversion.com
 
 License:
 --------

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>us.myles</groupId>
     <artifactId>viaversion</artifactId>
-    <version>0.8.3-SNAPSHOT</version>
+    <version>16w21a-DEV</version>
     <packaging>jar</packaging>
 
     <name>ViaVersion</name>
@@ -33,6 +33,7 @@
     <build>
         <finalName>${project.name}-${project.version}</finalName>
         <sourceDirectory>src/main/java</sourceDirectory>
+        <defaultGoal>clean install</defaultGoal>
         <!-- <testSourceDirectory>src/test/java</testSourceDirectory> -->
 
         <resources>

src/main/java/us/myles/ViaVersion/ViaVersionPlugin.java

@@ -33,10 +33,7 @@ import us.myles.ViaVersion.util.ReflectionUtil;
 import java.io.File;
 import java.lang.reflect.Field;
 import java.lang.reflect.Method;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.UUID;
+import java.util.*;
 import java.util.concurrent.Callable;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Future;
@@ -50,11 +47,14 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI, ViaVe
     private ViaCommandHandler commandHandler;
     private boolean debug = false;
     private boolean compatSpigotBuild = false;
+    private boolean spigot = true;
 
     @Override
     public void onLoad() {
         ViaVersion.setInstance(this);
+        // Config magic
         generateConfig();
+        // Handle reloads
         if (System.getProperty("ViaVersion") != null) {
             if (Bukkit.getPluginManager().getPlugin("ProtocolLib") != null) {
                 getLogger().severe("ViaVersion is already loaded, we're going to kick all the players... because otherwise we'll crash because of ProtocolLib.");
@@ -67,6 +67,12 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI, ViaVe
 
             }
         }
+        // Spigot detector
+        try {
+           Class.forName("org.spigotmc.SpigotConfig");
+        } catch (ClassNotFoundException e) {
+            spigot = false;
+        }
         // Check if it's a spigot build with a protocol mod
         try {
             compatSpigotBuild = ReflectionUtil.nms("PacketEncoder").getDeclaredField("version") != null;
@@ -96,6 +102,7 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI, ViaVe
                         getLogger().warning("ViaVersion will not function on the current protocol.");
                     }
                 }
+                ProtocolRegistry.refreshVersions();
             }
         });
 
@@ -107,6 +114,11 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI, ViaVe
 
         // Register Protocol Listeners
         ProtocolRegistry.registerListeners();
+
+        // Warn them if they have anti-xray on and they aren't using spigot
+        if(isAntiXRay() && !spigot){
+            getLogger().info("You have anti-xray on in your config, since you're not using spigot it won't fix xray!");
+        }
     }
 
     @Override
@@ -363,6 +375,16 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI, ViaVe
         return compatSpigotBuild;
     }
 
+    @Override
+    public SortedSet<Integer> getSupportedVersions() {
+        return ProtocolRegistry.getSupportedVersions();
+    }
+
+    @Override
+    public boolean isSpigot() {
+        return this.spigot;
+    }
+
     public boolean isCheckForUpdates() {
         return getConfig().getBoolean("checkforupdates", true);
     }
@@ -401,7 +423,7 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI, ViaVe
     }
 
     public boolean isUnknownEntitiesSuppressed() {
-        return getConfig().getBoolean("suppress-entityid-errors", false);
+        return false;
     }
 
     public double getHologramYOffset() {
@@ -409,7 +431,7 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI, ViaVe
     }
 
     public boolean isBlockBreakPatch() {
-        return getConfig().getBoolean("block-break-patch", true);
+        return false;
     }
 
     @Override
@@ -447,6 +469,11 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI, ViaVe
         return getConfig().getBoolean("anti-xray-patch", true);
     }
 
+    @Override
+    public boolean isSendSupportedVersions() {
+        return getConfig().getBoolean("send-supported-versions", false);
+    }
+
     public boolean isAutoTeam() {
         // Collision has to be enabled first
         return isPreventCollision() && getConfig().getBoolean("auto-team", true);

src/main/java/us/myles/ViaVersion/api/PacketWrapper.java

@@ -38,8 +38,10 @@ public class PacketWrapper {
      * Get a part from the output
      *
      * @param type  The type of the part you wish to get.
+     * @param <T>   The return type of the type you wish to get.
      * @param index The index of the part (relative to the type)
      * @return The requested type or throws ArrayIndexOutOfBounds
+     * @throws Exception If it fails to find it, an exception will be thrown.
      */
     public <T> T get(Type<T> type, int index) throws Exception {
         int currentIndex = 0;
@@ -80,8 +82,10 @@ public class PacketWrapper {
      * Set a currently existing part in the output
      *
      * @param type  The type of the part you wish to set.
+     * @param <T>   The return type of the type you wish to set.
      * @param index The index of the part (relative to the type)
      * @param value The value of the part you wish to set it to.
+     * @throws Exception If it fails to set it, an exception will be thrown.
      */
     public <T> void set(Type<T> type, int index, T value) throws Exception {
         int currentIndex = 0;
@@ -102,6 +106,7 @@ public class PacketWrapper {
      * Read a type from the input.
      *
      * @param type The type you wish to read
+     * @param <T>  The return type of the type you wish to read.
      * @return The requested type
      * @throws Exception If it fails to read
      */
@@ -117,7 +122,7 @@ public class PacketWrapper {
             }
         } else {
             Pair<Type, Object> read = readableObjects.poll();
-            if (read.getKey().equals(type)) {
+            if (read.getKey().equals(type) || (type.getBaseClass().equals(read.getKey().getBaseClass()) && type.getOutputClass().equals(read.getKey().getOutputClass()))) {
                 return (T) read.getValue();
             } else {
                 if (type == Type.NOTHING) {
@@ -134,6 +139,7 @@ public class PacketWrapper {
      * Write a type to the output.
      *
      * @param type  The type to write.
+     * @param <T>   The return type of the type you wish to write.
      * @param value The value of the type to write.
      */
     public <T> void write(Type<T> type, T value) {
@@ -154,6 +160,7 @@ public class PacketWrapper {
      * Take a value from the input and write to the output.
      *
      * @param type The type to read and write.
+     * @param <T>  The return type of the type you wish to pass through.
      * @return The type which was read/written.
      * @throws Exception If it failed to read or write
      */
@@ -173,7 +180,7 @@ public class PacketWrapper {
         packetValues.addAll(readableObjects);
         readableObjects.clear();
         // If the buffer has readable bytes, copy them.
-        if(inputBuffer.readableBytes() > 0){
+        if (inputBuffer.readableBytes() > 0) {
             passthrough(Type.REMAINING_BYTES);
         }
     }

src/main/java/us/myles/ViaVersion/api/ViaVersionAPI.java

@@ -7,6 +7,7 @@ import us.myles.ViaVersion.api.boss.BossColor;
 import us.myles.ViaVersion.api.boss.BossStyle;
 import us.myles.ViaVersion.api.command.ViaVersionCommand;
 
+import java.util.SortedSet;
 import java.util.UUID;
 
 public interface ViaVersionAPI {
@@ -37,7 +38,7 @@ public interface ViaVersionAPI {
     /**
      * Is player using 1.9?
      *
-     * @param playerUUID
+     * @param playerUUID UUID of a player
      * @return True if the client is on 1.9
      */
     boolean isPorted(UUID playerUUID);
@@ -109,4 +110,19 @@ public interface ViaVersionAPI {
      * @return True if it is
      */
     boolean isCompatSpigotBuild();
+
+    /**
+     * Get the supported protocol versions
+     *
+     * @return a list of protocol versions
+     */
+    SortedSet<Integer> getSupportedVersions();
+
+    /**
+     * Gets if the server uses spigot
+     *
+     * Note: Will only work after ViaVersion load
+     * @return True if spigot
+     */
+    boolean isSpigot();
 }

src/main/java/us/myles/ViaVersion/api/ViaVersionConfig.java

@@ -78,6 +78,7 @@ public interface ViaVersionConfig {
      *
      * @return true if boss bar patching is enabled
      */
+    @Deprecated
     boolean isUnknownEntitiesSuppressed();
 
     /**
@@ -99,6 +100,7 @@ public interface ViaVersionConfig {
      *
      * @return true if it is enabled.
      */
+    @Deprecated
     boolean isBlockBreakPatch();
 
     /**
@@ -111,7 +113,7 @@ public interface ViaVersionConfig {
     /**
      * Get the kick message sent if the user hits the max packets per second.
      *
-     * @return Kick message, with colour codes using '&'
+     * @return Kick message, with colour codes using '&'
      */
     String getMaxPPSKickMessage();
 
@@ -139,7 +141,7 @@ public interface ViaVersionConfig {
     /**
      * Get the kick message sent if the user goes over the warnings in the interval
      *
-     * @return Kick message, with colour codes using '&'
+     * @return Kick message, with colour codes using '&'
      */
     String getMaxWarningsKickMessage();
 
@@ -149,4 +151,11 @@ public interface ViaVersionConfig {
      * @return A boolean
      */
     boolean isAntiXRay();
+
+    /**
+     * Send supported versions in the status response packet
+     *
+     * @return If true, enabled
+     */
+    boolean isSendSupportedVersions();
 }

src/main/java/us/myles/ViaVersion/api/boss/BossBar.java

@@ -17,6 +17,7 @@ public interface BossBar {
      * Change the title
      *
      * @param title Title can be in either JSON or just text
+     * @return The BossBar object
      */
     BossBar setTitle(String title);
 
@@ -31,13 +32,14 @@ public interface BossBar {
      * Change the health
      *
      * @param health this float has to be between 0F - 1F
+     * @return The BossBar object
      */
     BossBar setHealth(float health);
 
     /**
      * Get the bossbar color
      *
-     * @return
+     * @return The colour
      */
     BossColor getColor();
 
@@ -45,6 +47,7 @@ public interface BossBar {
      * Yay colors!
      *
      * @param color Whatever color you want!
+     * @return The BossBar object
      */
     BossBar setColor(BossColor color);
 
@@ -59,13 +62,15 @@ public interface BossBar {
      * Change the bosbar style
      *
      * @param style BossStyle
+     * @return The BossBar object
      */
     BossBar setStyle(BossStyle style);
 
     /**
      * Show the bossbar to a player.
      *
-     * @param player
+     * @param player The player
+     * @return The BossBar object
      */
     BossBar addPlayer(Player player);
 
@@ -73,7 +78,7 @@ public interface BossBar {
      * Show the bossbar to a player (uuid)
      *
      * @param player uuid of the player
-     * @return the BossBar instance
+     * @return The BossBar object
      */
     BossBar addPlayer(UUID player);
 
@@ -81,34 +86,37 @@ public interface BossBar {
      * add multiple players
      *
      * @param players list of players
-     * @return the bossbar instance
+     * @return The BossBar object
      */
     BossBar addPlayers(Player... players);
 
     /**
      * Remove the bossbar from a player
      *
-     * @param player
+     * @param player The player
+     * @return The BossBar object
      */
     BossBar removePlayer(Player player);
 
     /**
      * Add flags
      *
-     * @param flag
+     * @param flag The flag to add
+     * @return The BossBar object
      */
     BossBar addFlag(BossFlag flag);
 
     /**
      * Remove flags.
      *
-     * @param flag
+     * @param flag The flag to remove
+     * @return The BossBar object
      */
     BossBar removeFlag(BossFlag flag);
 
     /**
-     * @param flag
-     * @return
+     * @param flag The flag to check against
+     * @return True if it has the flag
      */
     boolean hasFlag(BossFlag flag);
 
@@ -121,11 +129,15 @@ public interface BossBar {
 
     /**
      * Show the bossbar to everyone (In the getPlayer set)
+     *
+     * @return The BossBar object
      */
     BossBar show();
 
     /**
      * Hide the bossbar from everyone (In the getPlayer set)
+     *
+     * @return The BossBar object
      */
     BossBar hide();
 

src/main/java/us/myles/ViaVersion/api/command/ViaSubCommand.java

@@ -10,14 +10,14 @@ public abstract class ViaSubCommand {
     /**
      * Subcommand name
      *
-     * @return your input
+     * @return The command name
      */
     public abstract String name();
 
     /**
      * subcommand description, this'll show in /viaversion list
      *
-     * @return your input
+     * @return The command description
      */
     public abstract String description();
 
@@ -25,7 +25,7 @@ public abstract class ViaSubCommand {
      * Usage example:
      * "playerversion [name]"
      *
-     * @return your input
+     * @return The command usage
      */
     public String usage() {
         return name();
@@ -34,7 +34,7 @@ public abstract class ViaSubCommand {
     /**
      * Permission, null for everyone
      *
-     * @return
+     * @return The permission required to use the command
      */
     public String permission() {
         return "viaversion.admin";
@@ -59,7 +59,7 @@ public abstract class ViaSubCommand {
     public List<String> onTabComplete(CommandSender sender, String[] args) {
         return Collections.emptyList();
     }
-
+    
     public String color(String s) {
         return ViaCommandHandler.color(s);
     }

src/main/java/us/myles/ViaVersion/api/data/UserConnection.java

@@ -39,6 +39,7 @@ public class UserConnection {
      * Get an object from the storage
      *
      * @param objectClass The class of the object to get
+     * @param <T>         The type of the class you want to get.
      * @return The requested object
      */
     public <T extends StoredObject> T get(Class<T> objectClass) {
@@ -102,6 +103,8 @@ public class UserConnection {
 
     /**
      * Used for incrementing the number of packets received from the client
+     *
+     * @return True if the interval has reset
      */
     public boolean incrementReceived() {
         // handle stats
@@ -125,8 +128,8 @@ public class UserConnection {
      * @param reason The reason to use, not used if player is not active.
      */
     public void disconnect(final String reason) {
-        if(!getChannel().isOpen()) return;
-        if(pendingDisconnect) return;
+        if (!getChannel().isOpen()) return;
+        if (pendingDisconnect) return;
         pendingDisconnect = true;
         if (get(ProtocolInfo.class).getUuid() != null) {
             final UUID uuid = get(ProtocolInfo.class).getUuid();

src/main/java/us/myles/ViaVersion/api/minecraft/chunks/ChunkSection.java

@@ -157,6 +157,7 @@ public class ChunkSection {
      * Get expected size of this chunk section.
      *
      * @return Amount of bytes sent by this section
+     * @throws Exception If it failed to calculate bits properly
      */
     public int getExpectedSize() throws Exception {
         int bitsPerBlock = palette.size() > 255 ? 16 : 8;

src/main/java/us/myles/ViaVersion/api/protocol/ProtocolRegistry.java

@@ -1,5 +1,7 @@
 package us.myles.ViaVersion.api.protocol;
 
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
 import org.bukkit.Bukkit;
 import us.myles.ViaVersion.api.Pair;
 import us.myles.ViaVersion.protocols.base.BaseProtocol;
@@ -8,16 +10,19 @@ import us.myles.ViaVersion.protocols.protocol1_9_1to1_9.Protocol1_9_1TO1_9;
 import us.myles.ViaVersion.protocols.protocol1_9_3to1_9_1_2.Protocol1_9_3TO1_9_1_2;
 import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
 import us.myles.ViaVersion.protocols.protocol1_9to1_9_1.Protocol1_9TO1_9_1;
+import us.myles.ViaVersion.protocols.protocolsnapshotto1_9_3.ProtocolSnapshotTo1_9_3;
 
 import java.util.*;
+import java.util.concurrent.ConcurrentHashMap;
 
 public class ProtocolRegistry {
+    public static final Protocol BASE_PROTOCOL = new BaseProtocol();
     public static int SERVER_PROTOCOL = -1;
     // Input Version -> Output Version & Protocol (Allows fast lookup)
-    private static Map<Integer, Map<Integer, Protocol>> registryMap = new HashMap<>();
-    private static Map<Pair<Integer, Integer>, List<Pair<Integer, Protocol>>> pathCache = new HashMap<>();
-    private static List<Protocol> registerList = new ArrayList<>();
-    public static final Protocol BASE_PROTOCOL = new BaseProtocol();
+    private static Map<Integer, Map<Integer, Protocol>> registryMap = new ConcurrentHashMap<>();
+    private static Map<Pair<Integer, Integer>, List<Pair<Integer, Protocol>>> pathCache = new ConcurrentHashMap<>();
+    private static List<Protocol> registerList = Lists.newCopyOnWriteArrayList();
+    private static Set<Integer> supportedVersions = Sets.newConcurrentHashSet();
 
     static {
         // Base Protocol
@@ -29,6 +34,7 @@ public class ProtocolRegistry {
         // Only supported for 1.9.4 server to 1.9 (nothing else)
         registerProtocol(new Protocol1_9TO1_9_1(), Arrays.asList(ProtocolVersion.v1_9.getId()), ProtocolVersion.v1_9_2.getId());
         registerProtocol(new Protocol1_9_1_2TO1_9_3(), Arrays.asList(ProtocolVersion.v1_9_1.getId(), ProtocolVersion.v1_9_2.getId()), ProtocolVersion.v1_9_3.getId());
+        registerProtocol(new ProtocolSnapshotTo1_9_3(), Collections.singletonList(ProtocolVersion.SNAPSHOT.getId()), ProtocolVersion.v1_9_3.getId());
 
     }
 
@@ -54,11 +60,29 @@ public class ProtocolRegistry {
 
         if (Bukkit.getPluginManager().getPlugin("ViaVersion").isEnabled()) {
             protocol.registerListeners();
+            refreshVersions();
         } else {
             registerList.add(protocol);
         }
     }
 
+    public static void refreshVersions() {
+        supportedVersions.clear();
+
+        supportedVersions.add(ProtocolRegistry.SERVER_PROTOCOL);
+        for (ProtocolVersion versions : ProtocolVersion.getProtocols()) {
+            List<Pair<Integer, Protocol>> paths = getProtocolPath(versions.getId(), ProtocolRegistry.SERVER_PROTOCOL);
+            if (paths == null) continue;
+            supportedVersions.add(versions.getId());
+            for (Pair<Integer, Protocol> path : paths)
+                supportedVersions.add(path.getKey());
+        }
+    }
+
+    public static SortedSet<Integer> getSupportedVersions() {
+        return Collections.unmodifiableSortedSet(new TreeSet<>(supportedVersions));
+    }
+
     /**
      * Check if this plugin is useful to the server.
      *
@@ -90,7 +114,7 @@ public class ProtocolRegistry {
      * @return The path which has been generated, null if failed.
      */
     private static List<Pair<Integer, Protocol>> getProtocolPath(List<Pair<Integer, Protocol>> current, int clientVersion, int serverVersion) {
-        if(clientVersion == serverVersion) return null; // We're already there
+        if (clientVersion == serverVersion) return null; // We're already there
         if (current.size() > 50) return null; // Fail safe, protocol too complicated.
 
         // First check if there is any protocols for this

src/main/java/us/myles/ViaVersion/api/protocol/ProtocolVersion.java

@@ -16,6 +16,7 @@ public class ProtocolVersion {
     public static final ProtocolVersion v1_9_1;
     public static final ProtocolVersion v1_9_2;
     public static final ProtocolVersion v1_9_3;
+    public static final ProtocolVersion SNAPSHOT;
 
     private final int id;
     private final String name;
@@ -27,7 +28,8 @@ public class ProtocolVersion {
         register(v1_9 = new ProtocolVersion(107, "1.9"));
         register(v1_9_1 = new ProtocolVersion(108, "1.9.1"));
         register(v1_9_2 = new ProtocolVersion(109, "1.9.2"));
-        register(v1_9_3 = new ProtocolVersion(110, "1.9.3"));
+        register(v1_9_3 = new ProtocolVersion(110, "1.9.3/4"));
+        register(SNAPSHOT = new ProtocolVersion(203, "16w21b"));
     }
 
     public static void register(@NonNull ProtocolVersion protocol) {
@@ -47,6 +49,6 @@ public class ProtocolVersion {
     }
 
     public static List<ProtocolVersion> getProtocols() {
-        return Collections.unmodifiableList(new ArrayList<ProtocolVersion>(versions.values()));
+        return Collections.unmodifiableList(new ArrayList<>(versions.values()));
     }
 }

src/main/java/us/myles/ViaVersion/api/remapper/PacketRemapper.java

@@ -39,7 +39,9 @@ public abstract class PacketRemapper {
      * Map a type from an old type to a transformed new type.
      *
      * @param oldType     The old type
+     * @param <T1>        The old return type.
      * @param transformer The transformer to use to produce the new type.
+     * @param <T2>        The new return type.
      */
     public <T1, T2> void map(Type<T1> oldType, ValueTransformer<T1, T2> transformer) {
         map(new TypeRemapper(oldType), transformer);
@@ -49,7 +51,8 @@ public abstract class PacketRemapper {
      * Map a type using a basic ValueReader to a ValueWriter
      *
      * @param inputReader  The reader to read with.
-     * @param outputWriter The writer to write with.
+     * @param outputWriter The writer to write with
+     * @param <T>          The return type
      */
     public <T> void map(ValueReader<T> inputReader, ValueWriter<T> outputWriter) {
         valueRemappers.add(new Pair<ValueReader, ValueWriter>(inputReader, outputWriter));

src/main/java/us/myles/ViaVersion/api/type/Type.java

@@ -10,6 +10,8 @@ import us.myles.ViaVersion.api.minecraft.item.Item;
 import us.myles.ViaVersion.api.type.types.*;
 import us.myles.ViaVersion.api.type.types.minecraft.*;
 
+import java.util.HashSet;
+import java.util.Set;
 import java.util.UUID;
 
 @Getter
@@ -61,12 +63,14 @@ public abstract class Type<T> implements ByteBufReader<T>, ByteBufWriter<T> {
     public static final Type<CompoundTag> NBT = new NBTType();
 
     public static final Type<UUID> OPTIONAL_UUID = new OptUUIDType();
+    public static final Type<Position> OPTIONAL_POSITION = new OptPositionType();
 
     public static final Type<Item> ITEM = new ItemType();
     public static final Type<Item[]> ITEM_ARRAY = new ItemArrayType();
     /* Actual Class */
 
     private final Class<? super T> outputClass;
+    private final Set<Class<? extends Type>> compatibilities;
     private final String typeName;
 
     public Type(Class<? super T> outputClass) {
@@ -76,6 +80,11 @@ public abstract class Type<T> implements ByteBufReader<T>, ByteBufWriter<T> {
     public Type(String typeName, Class<? super T> outputClass) {
         this.outputClass = outputClass;
         this.typeName = typeName;
+        this.compatibilities = new HashSet<>();
+    }
+
+    public Class<? extends Type> getBaseClass() {
+        return this.getClass();
     }
 
     @Override

src/main/java/us/myles/ViaVersion/api/type/types/minecraft/MetaListTypeTemplate.java

@@ -0,0 +1,17 @@
+package us.myles.ViaVersion.api.type.types.minecraft;
+
+import us.myles.ViaVersion.api.minecraft.metadata.Metadata;
+import us.myles.ViaVersion.api.type.Type;
+
+import java.util.List;
+
+public abstract class MetaListTypeTemplate extends Type<List<Metadata>> {
+    public MetaListTypeTemplate() {
+        super("MetaData List", List.class);
+    }
+
+    @Override
+    public Class<? extends Type> getBaseClass() {
+        return MetaListTypeTemplate.class;
+    }
+}

src/main/java/us/myles/ViaVersion/api/type/types/minecraft/MetaTypeTemplate.java

@@ -0,0 +1,15 @@
+package us.myles.ViaVersion.api.type.types.minecraft;
+
+import us.myles.ViaVersion.api.minecraft.metadata.Metadata;
+import us.myles.ViaVersion.api.type.Type;
+
+public abstract class MetaTypeTemplate extends Type<Metadata> {
+    public MetaTypeTemplate() {
+        super("Metadata type", Metadata.class);
+    }
+
+    @Override
+    public Class<? extends Type> getBaseClass() {
+        return MetaTypeTemplate.class;
+    }
+}

src/main/java/us/myles/ViaVersion/api/type/types/minecraft/OptPositionType.java

@@ -0,0 +1,25 @@
+package us.myles.ViaVersion.api.type.types.minecraft;
+
+import io.netty.buffer.ByteBuf;
+import us.myles.ViaVersion.api.minecraft.Position;
+import us.myles.ViaVersion.api.type.Type;
+
+public class OptPositionType extends Type<Position> {
+    public OptPositionType() {
+        super(Position.class);
+    }
+
+    @Override
+    public Position read(ByteBuf buffer) throws Exception {
+        boolean present = buffer.readBoolean();
+        if (!present) return null;
+        return Type.POSITION.read(buffer);
+    }
+
+    @Override
+    public void write(ByteBuf buffer, Position object) throws Exception {
+        buffer.writeBoolean(object != null);
+        if (object != null)
+            Type.POSITION.write(buffer, object);
+    }
+}

src/main/java/us/myles/ViaVersion/classgenerator/BasicHandlerConstructor.java

@@ -3,7 +3,6 @@ package us.myles.ViaVersion.classgenerator;
 import io.netty.handler.codec.ByteToMessageDecoder;
 import io.netty.handler.codec.MessageToByteEncoder;
 import us.myles.ViaVersion.api.data.UserConnection;
-import us.myles.ViaVersion.classgenerator.HandlerConstructor;
 import us.myles.ViaVersion.handlers.ViaDecodeHandler;
 import us.myles.ViaVersion.handlers.ViaEncodeHandler;
 

src/main/java/us/myles/ViaVersion/protocols/base/BaseProtocol.java

@@ -42,6 +42,8 @@ public class BaseProtocol extends Protocol {
                         try {
                             JSONObject json = (JSONObject) new JSONParser().parse(originalStatus);
                             JSONObject version = (JSONObject) json.get("version");
+                            if (ViaVersion.getConfig().isSendSupportedVersions())
+                                version.put("supportedVersions", ViaVersion.getInstance().getSupportedVersions());
                             if (ProtocolRegistry.SERVER_PROTOCOL == -1) {
                                 Long original = (Long) version.get("protocol");
                                 ProtocolRegistry.SERVER_PROTOCOL = original.intValue();

src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/metadata/NewType.java

@@ -2,25 +2,31 @@ package us.myles.ViaVersion.protocols.protocol1_9to1_8.metadata;
 
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import us.myles.ViaVersion.api.type.Type;
 
 @RequiredArgsConstructor
 @Getter
 public enum NewType {
-    Byte(0),
-    VarInt(1),
-    Float(2),
-    String(3),
-    Chat(4),
-    Slot(5),
-    Boolean(6),
-    Vector3F(7),
-    Position(8),
-    OptPosition(9),
-    Direction(10),
-    OptUUID(11),
-    BlockID(12),
-    Discontinued(99);
+    Byte(0, Type.BYTE),
+    VarInt(1, Type.VAR_INT),
+    Float(2, Type.FLOAT),
+    String(3, Type.STRING),
+    Chat(4, Type.STRING),
+    Slot(5, Type.ITEM),
+    Boolean(6, Type.BOOLEAN),
+    Vector3F(7, Type.ROTATION),
+    Position(8, Type.POSITION),
+    OptPosition(9, Type.OPTIONAL_POSITION),
+    Direction(10, Type.VAR_INT),
+    OptUUID(11, Type.OPTIONAL_UUID),
+    BlockID(12, Type.VAR_INT),
+    Discontinued(99, null);
 
     private final int typeID;
+    private final Type type;
+
+    public static NewType byId(int id) {
+        return values()[id];
+    }
 
 }

src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/packets/EntityPackets.java

@@ -184,9 +184,10 @@ public class EntityPackets {
                         EntityTracker tracker = wrapper.user().get(EntityTracker.class);
                         if (tracker.getClientEntityTypes().containsKey(entityID)) {
                             MetadataRewriter.transform(tracker.getClientEntityTypes().get(entityID), metadataList);
-                        } else if (!ViaVersion.getConfig().isUnknownEntitiesSuppressed() || ViaVersion.getInstance().isDebug()) {
-                            System.out.println("Unable to find entity for metadata, entity ID: " + entityID);
-                            metadataList.clear();
+                        } else {
+                            // Buffer
+                            tracker.addMetadataToBuffer(entityID, metadataList);
+                            wrapper.cancel();
                         }
                     }
                 });
@@ -207,8 +208,9 @@ public class EntityPackets {
                     @Override
                     public void handle(PacketWrapper wrapper) throws Exception {
                         List<Metadata> metadataList = wrapper.get(Protocol1_9TO1_8.METADATA_LIST, 0);
-                        if (metadataList.size() == 0)
+                        if (metadataList.size() == 0) {
                             wrapper.cancel();
+                        }
                     }
                 });
             }
@@ -243,9 +245,6 @@ public class EntityPackets {
                 handler(new PacketHandler() {
                     @Override
                     public void handle(PacketWrapper wrapper) throws Exception {
-//                        int id = wrapper.read(Type.VAR_INT);
-//                        CompoundTag tag = wrapper.read(Type.NBT);
-//                        System.out.println(id + " - " + tag);
                         wrapper.cancel();
                     }
                 });

src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/packets/SpawnPackets.java

@@ -55,6 +55,7 @@ public class SpawnPackets {
                         int typeID = wrapper.get(Type.BYTE, 0);
                         EntityTracker tracker = wrapper.user().get(EntityTracker.class);
                         tracker.getClientEntityTypes().put(entityID, EntityUtil.getTypeFromID(typeID, true));
+                        tracker.sendMetadataBuffer(entityID);
                     }
                 });
 
@@ -129,6 +130,7 @@ public class SpawnPackets {
                         int entityID = wrapper.get(Type.VAR_INT, 0);
                         EntityTracker tracker = wrapper.user().get(EntityTracker.class);
                         tracker.getClientEntityTypes().put(entityID, EntityType.EXPERIENCE_ORB);
+                        tracker.sendMetadataBuffer(entityID);
                     }
                 });
 
@@ -154,6 +156,7 @@ public class SpawnPackets {
                         int entityID = wrapper.get(Type.VAR_INT, 0);
                         EntityTracker tracker = wrapper.user().get(EntityTracker.class);
                         tracker.getClientEntityTypes().put(entityID, EntityType.LIGHTNING);
+                        tracker.sendMetadataBuffer(entityID);
                     }
                 });
 
@@ -187,6 +190,7 @@ public class SpawnPackets {
                         int typeID = wrapper.get(Type.UNSIGNED_BYTE, 0);
                         EntityTracker tracker = wrapper.user().get(EntityTracker.class);
                         tracker.getClientEntityTypes().put(entityID, EntityUtil.getTypeFromID(typeID, false));
+                        tracker.sendMetadataBuffer(entityID);
                     }
                 });
 
@@ -243,6 +247,7 @@ public class SpawnPackets {
                         int entityID = wrapper.get(Type.VAR_INT, 0);
                         EntityTracker tracker = wrapper.user().get(EntityTracker.class);
                         tracker.getClientEntityTypes().put(entityID, EntityType.PAINTING);
+                        tracker.sendMetadataBuffer(entityID);
                     }
                 });
 
@@ -276,6 +281,7 @@ public class SpawnPackets {
                         int entityID = wrapper.get(Type.VAR_INT, 0);
                         EntityTracker tracker = wrapper.user().get(EntityTracker.class);
                         tracker.getClientEntityTypes().put(entityID, EntityType.PLAYER);
+                        tracker.sendMetadataBuffer(entityID);
                     }
                 });
 

src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/storage/ClientChunks.java

@@ -51,17 +51,21 @@ public class ClientChunks extends StoredObject {
             int[] zcoords = mapChunkBulkRef.getFieldValue("b", packet, int[].class);
             Object[] chunkMaps = mapChunkBulkRef.getFieldValue("c", packet, Object[].class);
 
-            if (ViaVersion.getConfig().isAntiXRay()) { //Spigot anti-xray patch
-                Object world = mapChunkBulkRef.getFieldValue("world", packet, Object.class);
+            if (ViaVersion.getConfig().isAntiXRay() && ViaVersion.getInstance().isSpigot()) { //Spigot anti-xray patch
+                try {
+                    Object world = mapChunkBulkRef.getFieldValue("world", packet, Object.class);
 
-                for (int i = 0; i < xcoords.length; ++i) {
-                    Object spigotConfig = ReflectionUtil.getPublic(world, "spigotConfig", Object.class);
-                    Object antiXrayInstance = ReflectionUtil.getPublic(spigotConfig, "antiXrayInstance", Object.class);
+                    for (int i = 0; i < xcoords.length; ++i) {
+                        Object spigotConfig = ReflectionUtil.getPublic(world, "spigotConfig", Object.class);
+                        Object antiXrayInstance = ReflectionUtil.getPublic(spigotConfig, "antiXrayInstance", Object.class);
 
-                    Object b = ReflectionUtil.get(chunkMaps[i], "b", Object.class);
-                    Object a = ReflectionUtil.get(chunkMaps[i], "a", Object.class);
+                        Object b = ReflectionUtil.get(chunkMaps[i], "b", Object.class);
+                        Object a = ReflectionUtil.get(chunkMaps[i], "a", Object.class);
 
-                    obfuscateRef.invoke(antiXrayInstance, xcoords[i], zcoords[i], b, a, world);
+                        obfuscateRef.invoke(antiXrayInstance, xcoords[i], zcoords[i], b, a, world);
+                    }
+                } catch (Exception e) {
+                    // not spigot, or it failed.
                 }
             }
             for (int i = 0; i < chunkMaps.length; i++) {

src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/storage/EntityTracker.java

@@ -21,7 +21,9 @@ import us.myles.ViaVersion.api.minecraft.item.Item;
 import us.myles.ViaVersion.api.minecraft.metadata.Metadata;
 import us.myles.ViaVersion.api.type.Type;
 import us.myles.ViaVersion.protocols.base.ProtocolInfo;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
 import us.myles.ViaVersion.protocols.protocol1_9to1_8.chat.GameMode;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.metadata.MetadataRewriter;
 import us.myles.ViaVersion.protocols.protocol1_9to1_8.metadata.NewType;
 
 import java.util.*;
@@ -32,6 +34,7 @@ import java.util.concurrent.TimeUnit;
 public class EntityTracker extends StoredObject {
     private final Map<Integer, UUID> uuidMap = new ConcurrentHashMap<>();
     private final Map<Integer, EntityType> clientEntityTypes = new ConcurrentHashMap<>();
+    private final Map<Integer, List<Metadata>> metadataBuffer = new ConcurrentHashMap<>();
     private final Map<Integer, Integer> vehicleMap = new ConcurrentHashMap<>();
     private final Map<Integer, BossBar> bossBarMap = new ConcurrentHashMap<>();
     private final Set<Integer> validBlocking = Sets.newConcurrentHashSet();
@@ -87,6 +90,7 @@ public class EntityTracker extends StoredObject {
         uuidMap.remove(entityID);
         validBlocking.remove(entityID);
         knownHolograms.remove(entityID);
+        metadataBuffer.remove(entityID);
 
         BossBar bar = bossBarMap.remove(entityID);
         if (bar != null) {
@@ -113,7 +117,9 @@ public class EntityTracker extends StoredObject {
     }
 
     public void handleMetadata(int entityID, List<Metadata> metadataList) {
-        if (!clientEntityTypes.containsKey(entityID)) return;
+        if (!clientEntityTypes.containsKey(entityID)) {
+            return;
+        }
 
         EntityType type = clientEntityTypes.get(entityID);
         for (Metadata metadata : new ArrayList<>(metadataList)) {
@@ -251,4 +257,30 @@ public class EntityTracker extends StoredObject {
             e.printStackTrace();
         }
     }
+
+    public void addMetadataToBuffer(int entityID, List<Metadata> metadataList) {
+        if (metadataBuffer.containsKey(entityID)) {
+            metadataBuffer.get(entityID).addAll(metadataList);
+        } else {
+            metadataBuffer.put(entityID, metadataList);
+        }
+    }
+
+    public void sendMetadataBuffer(int entityID) {
+        if (metadataBuffer.containsKey(entityID)) {
+            PacketWrapper wrapper = new PacketWrapper(0x39, null, getUser());
+            wrapper.write(Type.VAR_INT, entityID);
+            wrapper.write(Protocol1_9TO1_8.METADATA_LIST, metadataBuffer.get(entityID));
+            MetadataRewriter.transform(getClientEntityTypes().get(entityID), metadataBuffer.get(entityID));
+            handleMetadata(entityID, metadataBuffer.get(entityID));
+            if (metadataBuffer.get(entityID).size() > 0) {
+                try {
+                    wrapper.send();
+                } catch (Exception e) {
+                    e.printStackTrace();
+                }
+            }
+            metadataBuffer.remove(entityID);
+        }
+    }
 }

src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/types/MetadataListType.java

@@ -2,16 +2,13 @@ package us.myles.ViaVersion.protocols.protocol1_9to1_8.types;
 
 import io.netty.buffer.ByteBuf;
 import us.myles.ViaVersion.api.minecraft.metadata.Metadata;
-import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.api.type.types.minecraft.MetaListTypeTemplate;
 import us.myles.ViaVersion.protocols.protocol1_9to1_8.Protocol1_9TO1_8;
 
 import java.util.ArrayList;
 import java.util.List;
 
-public class MetadataListType extends Type<List<Metadata>> {
-    public MetadataListType() {
-        super("Metadata List", List.class);
-    }
+public class MetadataListType extends MetaListTypeTemplate {
 
     @Override
     public List<Metadata> read(ByteBuf buffer) throws Exception {

src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/types/MetadataType.java

@@ -3,14 +3,10 @@ package us.myles.ViaVersion.protocols.protocol1_9to1_8.types;
 
 import io.netty.buffer.ByteBuf;
 import us.myles.ViaVersion.api.minecraft.metadata.Metadata;
-import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.api.type.types.minecraft.MetaTypeTemplate;
 import us.myles.ViaVersion.protocols.protocol1_9to1_8.metadata.MetadataTypes;
 
-public class MetadataType extends Type<Metadata> {
-
-    public MetadataType() {
-        super(Metadata.class);
-    }
+public class MetadataType extends MetaTypeTemplate {
 
     @Override
     public Metadata read(ByteBuf buffer) throws Exception {

src/main/java/us/myles/ViaVersion/protocols/protocolsnapshotto1_9_3/MetaListSnapshotType.java

@@ -0,0 +1,40 @@
+package us.myles.ViaVersion.protocols.protocolsnapshotto1_9_3;
+
+import io.netty.buffer.ByteBuf;
+import us.myles.ViaVersion.api.minecraft.metadata.Metadata;
+import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.api.type.types.minecraft.MetaListTypeTemplate;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.metadata.NewType;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MetaListSnapshotType extends MetaListTypeTemplate {
+
+    @Override
+    public List<Metadata> read(ByteBuf buffer) throws Exception {
+        List<Metadata> list = new ArrayList<>();
+        Metadata meta;
+        do {
+            meta = ProtocolSnapshotTo1_9_3.METADATA.read(buffer);
+            if (meta != null)
+                list.add(meta);
+        } while (meta != null);
+
+        return list;
+    }
+
+    @Override
+    public void write(ByteBuf buffer, List<Metadata> object) throws Exception {
+        for (Metadata m : object) {
+            if (m.getId() >= 5)
+                m.setId(m.getId() + 1);
+            if (m.getId() == 4)
+                ProtocolSnapshotTo1_9_3.METADATA.write(buffer, new Metadata(5, NewType.Boolean.getTypeID(), Type.BOOLEAN, false)); // No gravity metadata
+            ProtocolSnapshotTo1_9_3.METADATA.write(buffer, m);
+        }
+
+        // Write end of list
+        ProtocolSnapshotTo1_9_3.METADATA.write(buffer, null);
+    }
+}

src/main/java/us/myles/ViaVersion/protocols/protocolsnapshotto1_9_3/MetaSnapshotType.java

@@ -0,0 +1,30 @@
+package us.myles.ViaVersion.protocols.protocolsnapshotto1_9_3;
+
+import io.netty.buffer.ByteBuf;
+import us.myles.ViaVersion.api.minecraft.metadata.Metadata;
+import us.myles.ViaVersion.api.type.types.minecraft.MetaTypeTemplate;
+import us.myles.ViaVersion.protocols.protocol1_9to1_8.metadata.NewType;
+
+public class MetaSnapshotType extends MetaTypeTemplate {
+
+    @Override
+    public Metadata read(ByteBuf buffer) throws Exception {
+        short index = buffer.readUnsignedByte();
+
+        if (index == 0xff) return null; //End of metadata
+        NewType type = NewType.byId(buffer.readByte());
+
+        return new Metadata(index, type.getTypeID(), type.getType(), type.getType().read(buffer));
+    }
+
+    @Override
+    public void write(ByteBuf buffer, Metadata object) throws Exception {
+        if (object == null) {
+            buffer.writeByte(255);
+        } else {
+            buffer.writeByte(object.getId());
+            buffer.writeByte(object.getTypeID());
+            object.getType().write(buffer, object.getValue());
+        }
+    }
+}

src/main/java/us/myles/ViaVersion/protocols/protocolsnapshotto1_9_3/ProtocolSnapshotTo1_9_3.java

@@ -0,0 +1,121 @@
+package us.myles.ViaVersion.protocols.protocolsnapshotto1_9_3;
+
+import us.myles.ViaVersion.api.PacketWrapper;
+import us.myles.ViaVersion.api.data.UserConnection;
+import us.myles.ViaVersion.api.minecraft.metadata.Metadata;
+import us.myles.ViaVersion.api.protocol.Protocol;
+import us.myles.ViaVersion.api.remapper.PacketHandler;
+import us.myles.ViaVersion.api.remapper.PacketRemapper;
+import us.myles.ViaVersion.api.remapper.ValueTransformer;
+import us.myles.ViaVersion.api.type.Type;
+import us.myles.ViaVersion.packets.State;
+
+import java.util.List;
+
+public class ProtocolSnapshotTo1_9_3 extends Protocol {
+    public static final Type<List<Metadata>> METADATA_LIST = new MetaListSnapshotType();
+    public static final Type<Metadata> METADATA = new MetaSnapshotType();
+    public static ValueTransformer<Short, Float> toNewPitch = new ValueTransformer<Short, Float>(Type.FLOAT) {
+        @Override
+        public Float transform(PacketWrapper wrapper, Short inputValue) throws Exception {
+            return inputValue / 63.5F;
+
+        }
+    };
+
+    @Override
+    protected void registerPackets() {
+        // Named sound effect
+        registerOutgoing(State.PLAY, 0x19, 0x19, new PacketRemapper() {
+            @Override
+            public void registerMap() {
+                map(Type.STRING); // 0 - Sound name
+                map(Type.VAR_INT); // 1 - Sound Category
+                map(Type.INT); // 2 - x
+                map(Type.INT); // 3 - y
+                map(Type.INT); // 4 - z
+                map(Type.FLOAT); // 5 - Volume
+                map(Type.UNSIGNED_BYTE, toNewPitch); // 6 - Pitch
+            }
+        });
+
+        // Sound effect
+        registerOutgoing(State.PLAY, 0x46, 0x46, new PacketRemapper() {
+            @Override
+            public void registerMap() {
+                map(Type.VAR_INT); // 0 - Sound name
+                map(Type.VAR_INT); // 1 - Sound Category
+                map(Type.INT); // 2 - x
+                map(Type.INT); // 3 - y
+                map(Type.INT); // 4 - z
+                map(Type.FLOAT); // 5 - Volume
+                map(Type.UNSIGNED_BYTE, toNewPitch); // 6 - Pitch
+
+                handler(new PacketHandler() {
+                    @Override
+                    public void handle(PacketWrapper wrapper) throws Exception {
+                        int id = wrapper.get(Type.VAR_INT, 0);
+                        wrapper.set(Type.VAR_INT, 0, getNewSoundId(id));
+                    }
+                });
+            }
+        });
+
+        // Metadata packet
+        registerOutgoing(State.PLAY, 0x39, 0x39, new PacketRemapper() {
+            @Override
+            public void registerMap() {
+                map(Type.VAR_INT); // 0 - Entity ID
+                map(METADATA_LIST); // 1 - Metadata list
+            }
+        });
+
+        // Spawn Mob
+        registerOutgoing(State.PLAY, 0x03, 0x03, new PacketRemapper() {
+            @Override
+            public void registerMap() {
+                map(Type.VAR_INT); // 0 - Entity id
+                map(Type.UUID); // 1 - UUID
+                map(Type.UNSIGNED_BYTE); // 2 - Entity Type
+                map(Type.DOUBLE); // 3 - X
+                map(Type.DOUBLE); // 4 - Y
+                map(Type.DOUBLE); // 5 - Z
+                map(Type.BYTE); // 6 - Yaw
+                map(Type.BYTE); // 7 - Pitch
+                map(Type.BYTE); // 8 - Head Pitch
+                map(Type.SHORT); // 9 - Velocity X
+                map(Type.SHORT); // 10 - Velocity Y
+                map(Type.SHORT); // 11 - Velocity Z
+                map(METADATA_LIST); // 12 - Metadata
+            }
+        });
+
+        // Spawn Player
+        registerOutgoing(State.PLAY, 0x05, 0x05, new PacketRemapper() {
+            @Override
+            public void registerMap() {
+                map(Type.VAR_INT); // 0 - Entity ID
+                map(Type.UUID); // 1 - Player UUID
+                map(Type.DOUBLE); // 2 - X
+                map(Type.DOUBLE); // 3 - Y
+                map(Type.DOUBLE); // 4 - Z
+                map(Type.BYTE); // 5 - Yaw
+                map(Type.BYTE); // 6 - Pitch
+                map(METADATA_LIST); // 7 - Metadata list
+            }
+        });
+    }
+
+    public int getNewSoundId(int id) { //TODO organize things later
+        if (id >= 24 && id <= 295) //One EnchantTable sound makes everything move between 24 and 295, blame the enchant table.
+            return ++id;
+        else if (id >= 296 && id < 443) //Blame the polar bear
+            return id + 7;
+        return id;
+    }
+
+    @Override
+    public void init(UserConnection userConnection) {
+
+    }
+}

src/main/resources/config.yml

@@ -1,5 +1,46 @@
+# Thanks for downloading ViaVersion
+# Ensure you look through all these options
+# If you need help:
+# viaversion.com - Discussion tab
+# IRC - https://elmer.spi.gt/iris/?nick=&channels=viaversion #viaversion on irc.spi.gt
+#
+#----------------------------------------------------------#
+#                     GLOBAL OPTIONS                        #
+#----------------------------------------------------------#
+#
 # Should ViaVersion check for updates?
 checkforupdates: true
+# Send the supported versions with the Status (Ping) response packet
+send-supported-versions: false
+#
+#----------------------------------------------------------#
+#                  GLOBAL PACKET LIMITER                    #
+#----------------------------------------------------------#
+#
+# Anti-Cheat, Packets Per Second (PPS) limiter
+# Clients by default send around 20-90 packets per second.
+
+# What is the maximum per second a client can send
+# Use -1 to disable.
+max-pps: 400
+max-pps-kick-msg: "You are sending too many packets!"
+
+# We can also kick them if over a period they send over a threshold a certain amount of times.
+
+# Period to track (in seconds)
+# Use -1 to disable.
+tracking-period: 6
+# How many packets per second counts as a warning
+tracking-warning-pps: 120
+# How many warnings over the interval can we have
+# This can never be higher than "tracking-interval"
+tracking-max-warnings: 4
+tracking-max-kick-msg: "You are sending too many packets, :("
+#
+#----------------------------------------------------------#
+#           1.9 CLIENTS ON 1.8 SERVERS OPTIONS              #
+#----------------------------------------------------------#
+#
 # No collide options, these allow you to configure how collision works.
 # Do you want us to prevent collision?
 prevent-collision: true
@@ -26,31 +67,7 @@ bossbar-anti-flicker: false
 use-new-effect-indicator: true
 # Show the new death messages for 1.9 on the death screen
 use-new-deathmessages: false
-# This will suppress the following error: 'Unable to get entity for ID: xxxx'
-# This error message means one of you plugins is sending bad packets!
-suppress-entityid-errors: false
-# Our patch for block breaking issue, if you have issues with block updates then disable this.
-block-break-patch: true
 # Should we cache our items, this will prevent server from being lagged out, however the cost is a constant task caching items
 item-cache: true
-# Anti-Cheat, Packets Per Second (PPS) limiter
-# Clients by default send around 20-90 packets per second.
-
-# What is the maximum per second a client can send
-# Use -1 to disable.
-max-pps: 400
-max-pps-kick-msg: "You are sending too many packets!"
-
-# We can also kick them if over a period they send over a threshold a certain amount of times.
-
-# Period to track (in seconds)
-# Use -1 to disable.
-tracking-period: 6
-# How many packets per second counts as a warning
-tracking-warning-pps: 120
-# How many warnings over the interval can we have
-# This can never be higher than "tracking-interval"
-tracking-max-warnings: 4
-tracking-max-kick-msg: "You are sending too many packets, :("
 # Patch the Anti xray to work on 1.9 (If your server is 1.8) This can cost more performance, so disable it if you don't use it.
 anti-xray-patch: true

src/main/resources/plugin.yml

@@ -3,7 +3,7 @@ main: us.myles.ViaVersion.ViaVersionPlugin
 author: _MylesC
 version: ${project.version}
 load: startup
-loadbefore: [ProtocolLib, ProxyPipe, SpigotLib, PacketListenerApi]
+loadbefore: [ProtocolLib, ProxyPipe, SpigotLib, PacketListenerApi, SkinRestorer]
 commands:
   viaversion:
     description: Shows ViaVersion Version and more.