[+] added lombok in order to smaller code by removing unnecessary getter, setter and constructors

[~] switched to bytecode version 1.8 (lambda expressions)
[~] general code cleanup (lambda expressions, for each, collapsed catch blocks, diamond maps)

pom.xml

@@ -53,13 +53,13 @@
                 </includes>
             </resource>
         </resources>
-		<!--
+        <!--
         <testResources>
             <testResource>
                 <directory>src/test/resources</directory>
             </testResource>
         </testResources>
-		-->
+        -->
 
         <plugins>
             <!-- Maven Java Compiler -->
@@ -68,12 +68,12 @@
                 <artifactId>maven-compiler-plugin</artifactId>
                 <version>3.5.1</version>
                 <configuration>
-                    <source>${jdkVersion}</source>
+                    <source>1.8</source>
-                    <target>${jdkVersion}</target>
+                    <target>1.8</target>
-					<!--
+                    <!--
                     <testSource>${testJreVersion}</testSource>
                     <testTarget>${testJreVersion}</testTarget>
-					-->
+                    -->
                 </configuration>
             </plugin>
             <!-- Unit Test Plugin
@@ -96,12 +96,12 @@
                 <configuration>
                     <createDependencyReducedPom>false</createDependencyReducedPom>
                     <minimizeJar>false</minimizeJar>
-					<relocations>
+                    <relocations>
-						<relocation>
+                        <relocation>
-							<pattern>org.spacehq.opennbt</pattern>
+                            <pattern>org.spacehq.opennbt</pattern>
-							<shadedPattern>us.myles.viaversion.libs.opennbt</shadedPattern>
+                            <shadedPattern>us.myles.viaversion.libs.opennbt</shadedPattern>
-						</relocation>
+                        </relocation>
-					</relocations>
+                    </relocations>
                 </configuration>
                 <executions>
                     <execution>
@@ -122,7 +122,7 @@
             <url>https://hub.spigotmc.org/nexus/content/repositories/snapshots</url>
         </repository>
 
-		<!-- SpaceHQ Repo-->
+        <!-- SpaceHQ Repo-->
         <repository>
             <id>spacehq-repo</id>
             <url>https://repo.spacehq.org/content/repositories/releases/</url>
@@ -153,16 +153,16 @@
             </exclusions>
         </dependency>
 
-		<!-- NBT Edit Library -->
+        <!-- NBT Edit Library -->
         <dependency>
             <groupId>org.spacehq</groupId>
             <artifactId>opennbt</artifactId>
             <version>1.0</version>
-			<scope>compile</scope>
+            <scope>compile</scope>
             <optional>true</optional>
         </dependency>
 
-		<!-- Netty (Network Library) -->
+        <!-- Netty (Network Library) -->
         <dependency>
             <groupId>io.netty</groupId>
             <artifactId>netty-all</artifactId>
@@ -170,5 +170,12 @@
             <scope>provided</scope>
             <optional>true</optional>
         </dependency>
+        <!-- Lombok -->
+        <dependency>
+            <groupId>org.projectlombok</groupId>
+            <artifactId>lombok</artifactId>
+            <version>1.16.6</version>
+            <scope>provided</scope>
+        </dependency>
     </dependencies>
 </project>

src/main/java/org/spacehq/mc/protocol/data/game/chunk/BlockStorage.java

@@ -17,7 +17,7 @@ public class BlockStorage {
     public BlockStorage() {
         this.bitsPerEntry = 4;
 
-        this.states = new ArrayList<Integer>();
+        this.states = new ArrayList<>();
         this.states.add(0);
 
         this.storage = new FlexibleStorage(this.bitsPerEntry, 4096);
@@ -26,7 +26,7 @@ public class BlockStorage {
     public BlockStorage(ByteBuf in) throws IOException {
         this.bitsPerEntry = in.readUnsignedByte();
 
-        this.states = new ArrayList<Integer>();
+        this.states = new ArrayList<>();
         int stateCount = PacketUtil.readVarInt(in);
         for (int i = 0; i < stateCount; i++) {
             this.states.add(PacketUtil.readVarInt(in));
@@ -35,6 +35,10 @@ public class BlockStorage {
         this.storage = new FlexibleStorage(this.bitsPerEntry, PacketUtil.readLongs(PacketUtil.readVarInt(in), in));
     }
 
+    private static int index(int x, int y, int z) {
+        return y << 8 | z << 4 | x;
+    }
+
     public void write(ByteBuf out) throws IOException {
         out.writeByte(this.bitsPerEntry);
 
@@ -78,7 +82,7 @@ public class BlockStorage {
 
                 List<Integer> oldStates = this.states;
                 if (this.bitsPerEntry > 8) {
-                    oldStates = new ArrayList<Integer>(this.states);
+                    oldStates = new ArrayList<>(this.states);
                     this.states.clear();
                     this.bitsPerEntry = 13;
                 }
@@ -107,10 +111,6 @@ public class BlockStorage {
         return true;
     }
 
-    private static int index(int x, int y, int z) {
-        return y << 8 | z << 4 | x;
-    }
-
     @Override
     public boolean equals(Object o) {
         return this == o || (o instanceof BlockStorage && this.bitsPerEntry == ((BlockStorage) o).bitsPerEntry && this.states.equals(((BlockStorage) o).states) && this.storage.equals(((BlockStorage) o).storage));

src/main/java/org/spacehq/mc/protocol/data/game/chunk/Column.java

@@ -23,9 +23,9 @@ public class Column {
 
         this.skylight = false;
         boolean noSkylight = false;
-        for(int index = 0; index < chunks.length; index++) {
+        for (Chunk chunk : chunks) {
-            if(chunks[index] != null) {
+            if (chunk != null) {
-                if(chunks[index].getSkyLight() == null) {
+                if (chunk.getSkyLight() == null) {
                     noSkylight = true;
                 } else {
                     this.skylight = true;

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

@@ -40,30 +40,30 @@ public class ConnectionInfo {
         this.state = state;
     }
 
-    public void setCompression(int compression) {
-        this.compression = compression;
-    }
-
     public int getCompression() {
         return compression;
     }
 
-    public void setLastPacket(Object lastPacket) {
+    public void setCompression(int compression) {
-        this.lastPacket = lastPacket;
+        this.compression = compression;
     }
 
     public Object getLastPacket() {
         return lastPacket;
     }
 
-    public void setUUID(UUID UUID) {
+    public void setLastPacket(Object lastPacket) {
-        this.UUID = UUID;
+        this.lastPacket = lastPacket;
     }
 
     public java.util.UUID getUUID() {
         return UUID;
     }
 
+    public void setUUID(UUID UUID) {
+        this.UUID = UUID;
+    }
+
     public Player getPlayer() {
         return UUID == null ? null : Bukkit.getPlayer(UUID);
     }
@@ -82,12 +82,7 @@ public class ConnectionInfo {
 
     public void sendRawPacket(final ByteBuf packet) {
         final ChannelHandler handler = channel.pipeline().get("encoder");
-        channel.eventLoop().submit(new Runnable() {
+        channel.eventLoop().submit((Runnable) () -> channel.pipeline().context(handler).writeAndFlush(packet));
-            @Override
-            public void run() {
-                channel.pipeline().context(handler).writeAndFlush(packet);
-            }
-        });
     }
 
     public String getOpenWindow() {
@@ -102,11 +97,11 @@ public class ConnectionInfo {
         this.openWindow = null;
     }
 
-    public void setUsername(String username) {
-        this.username = username;
-    }
-
     public String getUsername() {
         return username;
     }
+
+    public void setUsername(String username) {
+        this.username = username;
+    }
 }

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

@@ -28,20 +28,33 @@ import us.myles.ViaVersion.update.UpdateUtil;
 import us.myles.ViaVersion.util.ReflectionUtil;
 
 import java.lang.reflect.Field;
-import java.util.Collection;
 import java.util.List;
 import java.util.Map;
 import java.util.UUID;
-import java.util.concurrent.Callable;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.Future;
 import java.util.concurrent.TimeUnit;
 
 public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
 
-    private final Map<UUID, ConnectionInfo> portedPlayers = new ConcurrentHashMap<UUID, ConnectionInfo>();
+    private final Map<UUID, ConnectionInfo> portedPlayers = new ConcurrentHashMap<>();
     private boolean debug = false;
 
+    public static ItemStack getHandItem(final ConnectionInfo info) {
+        try {
+            return Bukkit.getScheduler().callSyncMethod(Bukkit.getPluginManager().getPlugin("ViaVersion"), () -> {
+                if (info.getPlayer() != null) {
+                    return info.getPlayer().getItemInHand();
+                }
+                return null;
+            }).get(10, TimeUnit.SECONDS);
+        } catch (Exception e) {
+            System.out.println("Error fetching hand item ");
+            e.printStackTrace();
+            return null;
+        }
+    }
+
     @Override
     public void onEnable() {
         ViaVersion.setInstance(this);
@@ -154,6 +167,10 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
         return this.debug;
     }
 
+    public void setDebug(boolean value) {
+        this.debug = value;
+    }
+
     @Override
     public boolean isSyncedChunks() {
         return getConfig().getBoolean("sync-chunks", true);
@@ -169,10 +186,6 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
         return getConfig().getBoolean("auto-team", true);
     }
 
-    public void setDebug(boolean value) {
-        this.debug = value;
-    }
-
     public void addPortedClient(ConnectionInfo info) {
         portedPlayers.put(info.getUUID(), info);
     }
@@ -181,32 +194,11 @@ public class ViaVersionPlugin extends JavaPlugin implements ViaVersionAPI {
         portedPlayers.remove(clientID);
     }
 
-    public static ItemStack getHandItem(final ConnectionInfo info) {
-        try {
-            return Bukkit.getScheduler().callSyncMethod(Bukkit.getPluginManager().getPlugin("ViaVersion"), new Callable<ItemStack>() {
-                @Override
-                public ItemStack call() throws Exception {
-                    if (info.getPlayer() != null) {
-                        return info.getPlayer().getItemInHand();
-                    }
-                    return null;
-                }
-            }).get(10, TimeUnit.SECONDS);
-        } catch (Exception e) {
-            System.out.println("Error fetching hand item ");
-            e.printStackTrace();
-            return null;
-        }
-    }
-
     public void run(final Runnable runnable, boolean wait) {
         try {
-            Future f = Bukkit.getScheduler().callSyncMethod(Bukkit.getPluginManager().getPlugin("ViaVersion"), new Callable<Boolean>() {
+            Future f = Bukkit.getScheduler().callSyncMethod(Bukkit.getPluginManager().getPlugin("ViaVersion"), () -> {
-                @Override
+                runnable.run();
-                public Boolean call() throws Exception {
+                return true;
-                    runnable.run();
-                    return true;
-                }
             });
             if (wait) {
                 f.get(10, TimeUnit.SECONDS);

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

@@ -1,17 +1,11 @@
 package us.myles.ViaVersion.api;
 
+import lombok.Getter;
+import lombok.Setter;
+
 public class ViaVersion {
 
-    private static ViaVersionAPI INSTANCE;
+    @Getter
-
+    @Setter
-    public static void setInstance(ViaVersionAPI api) {
+    private static ViaVersionAPI instance;
-        if (INSTANCE != null) {
-            throw new IllegalStateException("Instance already set.");
-        }
-        INSTANCE = api;
-    }
-
-    public static ViaVersionAPI getInstance() {
-        return INSTANCE;
-    }
 }

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

@@ -13,13 +13,6 @@ public interface BossBar {
      */
     void setTitle(String title);
 
-    /**
-     * Get the current title
-     *
-     * @return the title
-     */
-    String getTitle();
-
     /**
      * Change the health
      *
@@ -27,20 +20,6 @@ public interface BossBar {
      */
     void setHealth(float health);
 
-    /**
-     * Get the health
-     *
-     * @return float between 0F - 1F
-     */
-    float getHealth();
-
-    /**
-     * Yay colors!
-     *
-     * @param color Whatever color you want!
-     */
-    void setColor(BossColor color);
-
     /**
      * Get the bossbar color
      *
@@ -48,6 +27,13 @@ public interface BossBar {
      */
     BossColor getColor();
 
+    /**
+     * Yay colors!
+     *
+     * @param color Whatever color you want!
+     */
+    void setColor(BossColor color);
+
     /**
      * Change the bosbar style
      *
@@ -55,13 +41,6 @@ public interface BossBar {
      */
     void setStyle(BossStyle style);
 
-    /**
-     * Get the bosbar style
-     *
-     * @return BossStyle
-     */
-    BossStyle getStyle();
-
     /**
      * Show the bossbar to a player.
      *

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

@@ -1,5 +1,10 @@
 package us.myles.ViaVersion.api.boss;
 
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@Getter
 public enum BossColor {
     PINK(0),
     BLUE(1),
@@ -10,12 +15,4 @@ public enum BossColor {
     WHITE(6);
 
     private final int id;
-
-    BossColor(int id) {
-        this.id = id;
-    }
-
-    public int getId() {
-        return id;
-    }
 }

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

@@ -1,16 +1,13 @@
 package us.myles.ViaVersion.api.boss;
 
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@Getter
 public enum BossFlag {
     DARKEN_SKY(1),
     PLAY_BOSS_MUSIC(2);
 
     private final int id;
-
-    BossFlag(int id) {
-        this.id = id;
-    }
-
-    public int getId() {
-        return id;
-    }
 }

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

@@ -1,5 +1,10 @@
 package us.myles.ViaVersion.api.boss;
 
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@Getter
 public enum BossStyle {
     SOLID(0),
     SEGMENTED_6(1),
@@ -8,12 +13,4 @@ public enum BossStyle {
     SEGMENTED_20(4);
 
     private final int id;
-
-    BossStyle(int id) {
-        this.id = id;
-    }
-
-    public int getId() {
-        return id;
-    }
 }

src/main/java/us/myles/ViaVersion/armor/ArmorListener.java

@@ -2,6 +2,7 @@ package us.myles.ViaVersion.armor;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
+import lombok.RequiredArgsConstructor;
 import org.bukkit.Bukkit;
 import org.bukkit.entity.HumanEntity;
 import org.bukkit.entity.Player;
@@ -21,14 +22,27 @@ import java.util.UUID;
 
 import static us.myles.ViaVersion.util.PacketUtil.*;
 
+@RequiredArgsConstructor
 public class ArmorListener implements Listener {
 
+    private static final UUID ARMOR_ATTRIBUTE = UUID.fromString("2AD3F246-FEE1-4E67-B886-69FD380BB150");
     private final ViaVersionPlugin plugin;
 
-    private static UUID armorAttribute = UUID.fromString("2AD3F246-FEE1-4E67-B886-69FD380BB150");
+    public static void sendArmorUpdate(Player player) {
+        int armor = ArmorType.calculateArmorPoints(player.getInventory().getArmorContents());
 
-    public ArmorListener(ViaVersionPlugin plugin) {
+        ByteBuf buf = Unpooled.buffer();
-        this.plugin = plugin;
+        writeVarInt(PacketType.PLAY_ENTITY_PROPERTIES.getNewPacketID(), buf);
+        writeVarInt(player.getEntityId(), buf);
+        buf.writeInt(1); // only 1 property
+        writeString("generic.armor", buf);
+        buf.writeDouble(0); //default 0 armor
+        writeVarInt(1, buf); // 1 modifier
+        writeUUID(ARMOR_ATTRIBUTE, buf); // armor modifier uuid
+        buf.writeDouble((double) armor); // the modifier value
+        buf.writeByte(0); // the modifier operation, 0 is add number
+
+        ViaVersion.getInstance().sendRawPacket(player, buf);
     }
 
     @EventHandler(priority = EventPriority.MONITOR, ignoreCancelled = true)
@@ -45,7 +59,6 @@ public class ArmorListener implements Listener {
                 }
                 if (e.getRawSlot() >= 5 && e.getRawSlot() <= 8) {
                     sendDelayedArmorUpdate(player);
-                    return;
                 }
             }
         }
@@ -58,12 +71,9 @@ public class ArmorListener implements Listener {
                 if (ArmorType.isArmor(e.getMaterial())) {
                     final Player player = e.getPlayer();
                     // Due to odd bugs it's 3 ticks later
-                    Bukkit.getScheduler().scheduleSyncDelayedTask(plugin, new Runnable() {
+                    Bukkit.getScheduler().scheduleSyncDelayedTask(plugin, () -> {
-                        @Override
+                        if (ViaVersion.getInstance().isPorted(player)) {
-                        public void run() {
+                            sendArmorUpdate(player);
-                            if (ViaVersion.getInstance().isPorted(player)) {
-                                sendArmorUpdate(player);
-                            }
                         }
                     }, 3L);
                 }
@@ -77,30 +87,12 @@ public class ArmorListener implements Listener {
     }
 
     public void sendDelayedArmorUpdate(final Player player) {
-        Bukkit.getScheduler().scheduleSyncDelayedTask(plugin, new Runnable() {
+        Bukkit.getScheduler().scheduleSyncDelayedTask(plugin, () -> {
-            @Override
+
-            public void run() {
                 if (ViaVersion.getInstance().isPorted(player)) {
                     sendArmorUpdate(player);
                 }
-            }
+
         });
     }
-
-    public static void sendArmorUpdate(Player player) {
-        int armor = ArmorType.calculateArmorPoints(player.getInventory().getArmorContents());
-
-        ByteBuf buf = Unpooled.buffer();
-        writeVarInt(PacketType.PLAY_ENTITY_PROPERTIES.getNewPacketID(), buf);
-        writeVarInt(player.getEntityId(), buf);
-        buf.writeInt(1); // only 1 property
-        writeString("generic.armor", buf);
-        buf.writeDouble(0); //default 0 armor
-        writeVarInt(1, buf); // 1 modifier
-        writeUUID(armorAttribute, buf); // armor modifier uuid
-        buf.writeDouble((double) armor); // the modifier value
-        buf.writeByte(0); // the modifier operation, 0 is add number
-
-        ViaVersion.getInstance().sendRawPacket(player, buf);
-    }
 }

src/main/java/us/myles/ViaVersion/armor/ArmorType.java

@@ -1,8 +1,12 @@
 package us.myles.ViaVersion.armor;
 
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
 import org.bukkit.Material;
 import org.bukkit.inventory.ItemStack;
 
+@RequiredArgsConstructor
+@Getter
 public enum ArmorType {
 
     LEATHER_HELMET(1, 298, Material.LEATHER_HELMET),
@@ -27,27 +31,9 @@ public enum ArmorType {
     GOLD_BOOTS(1, 317, Material.GOLD_BOOTS),
     NONE(0, 0, Material.AIR);
 
-    private int armorpoints;
+    private final int armorPoints;
-    private int id;
+    private final int id;
-    private Material type;
+    private final Material type;
-
-    ArmorType(int armor, int id, Material type) {
-        this.armorpoints = armor;
-        this.id = id;
-        this.type = type;
-    }
-
-    public int getArmorPoints() {
-        return this.armorpoints;
-    }
-
-    public int getId() {
-        return this.id;
-    }
-
-    public Material getType() {
-        return this.type;
-    }
 
     public static ArmorType findByType(Material type) {
         for(ArmorType a : ArmorType.values())
@@ -58,9 +44,9 @@ public enum ArmorType {
 
     public static int calculateArmorPoints(ItemStack[] armor) {
         int total = 0;
-        for(int i = 0; i < armor.length; i++) {
+        for (ItemStack anArmor : armor) {
-            if(armor[i] != null)
+            if (anArmor != null)
-                total += findByType(armor[i].getType()).getArmorPoints();
+                total += findByType(anArmor.getType()).getArmorPoints();
         }
         return total;
     }
@@ -81,11 +67,15 @@ public enum ArmorType {
 
     public static int calculateArmorPoints(int[] armor) {
         int total = 0;
-        for(int i = 0; i < armor.length; i++) {
+        for (int anArmor : armor) {
-            if(armor[i] != -1)
+            if (anArmor != -1)
-                total += findById(armor[i]).getArmorPoints();
+                total += findById(anArmor).getArmorPoints();
         }
         return total;
     }
 
+    public Material getType() {
+        return this.type;
+    }
+
 }

src/main/java/us/myles/ViaVersion/boss/ViaBossBar.java

@@ -2,6 +2,8 @@ package us.myles.ViaVersion.boss;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
 import org.apache.commons.lang.Validate;
 import org.bukkit.entity.Player;
 import us.myles.ViaVersion.api.ViaVersion;
@@ -18,6 +20,7 @@ import java.util.HashSet;
 import java.util.Set;
 import java.util.UUID;
 
+@Getter
 public class ViaBossBar implements BossBar {
     private UUID uuid;
     private String title;
@@ -48,11 +51,6 @@ public class ViaBossBar implements BossBar {
         sendPacket(UpdateAction.UPDATE_TITLE);
     }
 
-    @Override
-    public String getTitle() {
-        return title;
-    }
-
     @Override
     public void setHealth(float health) {
         Validate.isTrue((health >= 0 && health <= 1), "Health must be between 0 and 1");
@@ -61,8 +59,8 @@ public class ViaBossBar implements BossBar {
     }
 
     @Override
-    public float getHealth() {
+    public BossColor getColor() {
-        return health;
+        return color;
     }
 
     @Override
@@ -72,11 +70,6 @@ public class ViaBossBar implements BossBar {
         sendPacket(UpdateAction.UPDATE_STYLE);
     }
 
-    @Override
-    public BossColor getColor() {
-        return color;
-    }
-
     @Override
     public void setStyle(BossStyle style) {
         Validate.notNull(style, "Style cannot be null");
@@ -84,11 +77,6 @@ public class ViaBossBar implements BossBar {
         sendPacket(UpdateAction.UPDATE_STYLE);
     }
 
-    @Override
-    public BossStyle getStyle() {
-        return style;
-    }
-
     @Override
     public void addPlayer(Player player) {
         if (player != null && !players.contains(player.getUniqueId())) {
@@ -210,6 +198,8 @@ public class ViaBossBar implements BossBar {
         return OutgoingTransformer.fixJson(text);
     }
 
+    @RequiredArgsConstructor
+    @Getter
     private enum UpdateAction {
         ADD(0),
         REMOVE(1),
@@ -219,13 +209,5 @@ public class ViaBossBar implements BossBar {
         UPDATE_FLAGS(5);
 
         private final int id;
-
-        UpdateAction(int id) {
-            this.id = id;
-        }
-
-        public int getId() {
-            return id;
-        }
     }
 }

src/main/java/us/myles/ViaVersion/chunks/ByteWriter.java

@@ -1,20 +1,19 @@
 package us.myles.ViaVersion.chunks;
 
+import lombok.Getter;
+
+@Getter
 public class ByteWriter {
-    private final byte[] bytes;
+
+    private final byte[] output;
     private int byteIndex;
     private int bitIndex;
 
     public ByteWriter(int size) {
-        this.bytes = new byte[size];
+        this.output = new byte[size];
         this.byteIndex = 0;
         this.bitIndex = 0;
     }
-
-    public byte[] getOutput() {
-        return this.bytes;
-    }
-
     public void writeFullByte(int b){
         writeByte(b, 8);
     }
@@ -28,8 +27,8 @@ public class ByteWriter {
         int space = (8 - bitIndex);
         int written = space > length ? length : space;
         System.out.println("Written is " + written);
-        bytes[byteIndex] = (byte) (current | (extractRange(byteB, 0, written) >> (bitIndex - 1)));
+        output[byteIndex] = (byte) (current | (extractRange(byteB, 0, written) >> (bitIndex - 1)));
-        System.out.println("output value: " + bytes[byteIndex]);
+        System.out.println("output value: " + output[byteIndex]);
         this.bitIndex += length;
         if(this.bitIndex >= 8) {
             this.byteIndex += 1;
@@ -37,7 +36,7 @@ public class ByteWriter {
             // write remaining into this
             System.out.println("Writing from " + written + " to " + (written + bitIndex));
             System.out.println("Value: " + extractRange(byteB, written, written + bitIndex));
-            bytes[byteIndex] = (byte) (extractRange(byteB, written, written + bitIndex) << written);
+            output[byteIndex] = (byte) (extractRange(byteB, written, written + bitIndex) << written);
         }
     }
 
@@ -45,8 +44,8 @@ public class ByteWriter {
         return (byte) ((in >> begin) & ((1 << (end - begin)) - 1));
     }
     public byte getCurrentByte() {
-        if(byteIndex == bytes.length) throw new RuntimeException("ByteWriter overflow!");
+        if (byteIndex == output.length) throw new RuntimeException("ByteWriter overflow!");
 
-        return bytes[byteIndex];
+        return output[byteIndex];
     }
 }

src/main/java/us/myles/ViaVersion/chunks/MagicBitSet.java

@@ -1,15 +1,13 @@
 package us.myles.ViaVersion.chunks;
 
+import lombok.RequiredArgsConstructor;
+
 import java.util.BitSet;
 
-public class MagicBitSet extends BitSet{
+@RequiredArgsConstructor
+public class MagicBitSet extends BitSet {
     private final int initLength;
 
-    public MagicBitSet(int nbits) {
-        super(nbits);
-        this.initLength = nbits;
-    }
-
     public int getTrueLength() {
         return length() == 0 ? initLength : length();
     }

src/main/java/us/myles/ViaVersion/chunks/PacketChunk.java

@@ -1,19 +1,14 @@
 package us.myles.ViaVersion.chunks;
 
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+import lombok.Setter;
+
+@Getter
+@Setter
+@AllArgsConstructor
 public class PacketChunk {
+
     private PacketChunkData[] chunkData;
     private byte[] biomeData;
-
-    public PacketChunk(PacketChunkData[] chunkData, byte[] biomeData) {
-        this.chunkData = chunkData;
-        this.biomeData = biomeData;
-    }
-
-    public PacketChunkData[] getChunkData() {
-        return chunkData;
-    }
-
-    public byte[] getBiomeData() {
-        return biomeData;
-    }
 }

src/main/java/us/myles/ViaVersion/commands/ViaVersionCommand.java

@@ -1,5 +1,6 @@
 package us.myles.ViaVersion.commands;
 
+import lombok.RequiredArgsConstructor;
 import org.bukkit.Bukkit;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandExecutor;
@@ -14,12 +15,11 @@ import java.util.List;
 /**
  * Created by fillefilip8 on 2016-03-03.
  */
+@RequiredArgsConstructor
 public class ViaVersionCommand implements CommandExecutor {
+
     private final ViaVersionPlugin plugin;
 
-    public ViaVersionCommand(ViaVersionPlugin plugin) {
-        this.plugin = plugin;
-    }
 
     @Override
     public boolean onCommand(CommandSender sender, Command cmd, String label, String[] args) {
@@ -32,8 +32,8 @@ public class ViaVersionCommand implements CommandExecutor {
                 sender.sendMessage(color("&2/viaversion dontbugme &7- &6Toggle checking for updates."));
             } else if (args.length == 1) {
                 if (args[0].equalsIgnoreCase("list")) {
-                    List<String> portedPlayers = new ArrayList<String>();
+                    List<String> portedPlayers = new ArrayList<>();
-                    List<String> normalPlayers = new ArrayList<String>();
+                    List<String> normalPlayers = new ArrayList<>();
                     for (Player p : Bukkit.getOnlinePlayers()) {
                         if (ViaVersion.getInstance().isPorted(p)) {
                             portedPlayers.add(p.getName());

src/main/java/us/myles/ViaVersion/handlers/ViaDecodeHandler.java

@@ -11,6 +11,7 @@ import us.myles.ViaVersion.util.PacketUtil;
 import java.util.List;
 
 public class ViaDecodeHandler extends ByteToMessageDecoder {
+
     private final IncomingTransformer incomingTransformer;
     private final ByteToMessageDecoder minecraftDecoder;
     private final ConnectionInfo info;

src/main/java/us/myles/ViaVersion/handlers/ViaEncodeHandler.java

@@ -5,8 +5,6 @@ import io.netty.channel.ChannelHandlerContext;
 import io.netty.handler.codec.MessageToByteEncoder;
 import us.myles.ViaVersion.CancelException;
 import us.myles.ViaVersion.ConnectionInfo;
-import us.myles.ViaVersion.ViaVersionPlugin;
-import us.myles.ViaVersion.api.ViaVersion;
 import us.myles.ViaVersion.transformers.OutgoingTransformer;
 import us.myles.ViaVersion.util.PacketUtil;
 import us.myles.ViaVersion.util.ReflectionUtil;
@@ -39,30 +37,18 @@ public class ViaEncodeHandler extends MessageToByteEncoder {
                 final Object world = ReflectionUtil.get(o, "world", ReflectionUtil.nms("World"));
                 Class<?> mapChunk = ReflectionUtil.nms("PacketPlayOutMapChunk");
                 final Constructor constructor = mapChunk.getDeclaredConstructor(ReflectionUtil.nms("Chunk"), boolean.class, int.class);
-                Runnable chunks = new Runnable() {
+                Runnable chunks = () -> {
 
-                    @Override
+                    for (int i = 0; i < locX.length; i++) {
-                    public void run() {
+                        int x = locX[i];
-
+                        int z = locZ[i];
-                        for (int i = 0; i < locX.length; i++) {
+                        // world invoke function
-                            int x = locX[i];
+                        try {
-                            int z = locZ[i];
+                            Object chunk = ReflectionUtil.nms("World").getDeclaredMethod("getChunkAt", int.class, int.class).invoke(world, x, z);
-                            // world invoke function
+                            Object packet = constructor.newInstance(chunk, true, 65535);
-                            try {
+                            ctx.pipeline().writeAndFlush(packet);
-                                Object chunk = ReflectionUtil.nms("World").getDeclaredMethod("getChunkAt", int.class, int.class).invoke(world, x, z);
+                        } catch (InstantiationException | InvocationTargetException | NoSuchMethodException | IllegalAccessException | ClassNotFoundException e) {
-                                Object packet = constructor.newInstance(chunk, true, 65535);
+                            e.printStackTrace();
-                                ctx.pipeline().writeAndFlush(packet);
-                            } catch (InstantiationException e) {
-                                e.printStackTrace();
-                            } catch (InvocationTargetException e) {
-                                e.printStackTrace();
-                            } catch (NoSuchMethodException e) {
-                                e.printStackTrace();
-                            } catch (IllegalAccessException e) {
-                                e.printStackTrace();
-                            } catch (ClassNotFoundException e) {
-                                e.printStackTrace();
-                            }
                         }
                     }
                 };

src/main/java/us/myles/ViaVersion/handlers/ViaVersionInitializer.java

@@ -10,6 +10,7 @@ import us.myles.ViaVersion.ConnectionInfo;
 import java.lang.reflect.Method;
 
 public class ViaVersionInitializer extends ChannelInitializer<SocketChannel> {
+
     private final ChannelInitializer<SocketChannel> oldInit;
     private Method method;
 

src/main/java/us/myles/ViaVersion/listeners/CommandBlockListener.java

@@ -2,6 +2,7 @@ package us.myles.ViaVersion.listeners;
 
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.Unpooled;
+import lombok.RequiredArgsConstructor;
 import org.bukkit.block.Block;
 import org.bukkit.block.CommandBlock;
 import org.bukkit.entity.Player;
@@ -19,12 +20,10 @@ import us.myles.ViaVersion.util.ReflectionUtil;
 import java.lang.reflect.InvocationTargetException;
 import java.lang.reflect.Method;
 
+@RequiredArgsConstructor
 public class CommandBlockListener implements Listener {
-    private final ViaVersionPlugin plugin;
 
-    public CommandBlockListener(ViaVersionPlugin plugin) {
+    private final ViaVersionPlugin plugin;
-        this.plugin = plugin;
-    }
 
     @EventHandler(ignoreCancelled = true, priority = EventPriority.MONITOR)
     public void onJoin(final PlayerJoinEvent e) {

src/main/java/us/myles/ViaVersion/metadata/MetaIndex.java

@@ -1,7 +1,11 @@
 package us.myles.ViaVersion.metadata;
 
+import lombok.AllArgsConstructor;
+import lombok.Getter;
 import org.bukkit.entity.*;
 
+@AllArgsConstructor
+@Getter
 public enum MetaIndex {
 
     // entity
@@ -136,34 +140,6 @@ public enum MetaIndex {
         this.newType = newType;
     }
 
-    MetaIndex(Class<?> type, int index, Type oldType, int newIndex, NewType newType) {
-        this.clazz = type;
-        this.index = index;
-        this.oldType = oldType;
-        this.newIndex = newIndex;
-        this.newType = newType;
-    }
-
-    public int getNewIndex() {
-        return newIndex;
-    }
-
-    public NewType getNewType() {
-        return newType;
-    }
-
-    public Type getOldType() {
-        return oldType;
-    }
-
-    public int getIndex() {
-        return index;
-    }
-
-    public Class<?> getApplicableClass() {
-        return this.clazz;
-    }
-
     public static MetaIndex getIndex(EntityType type, int index) {
         Class<? extends org.bukkit.entity.Entity> entityClass = type.getEntityClass();
         if (entityClass == null) {
@@ -192,5 +168,9 @@ public enum MetaIndex {
         }
         return null;
     }
+
+    public Class<?> getApplicableClass() {
+        return this.clazz;
+    }
 }
 

src/main/java/us/myles/ViaVersion/metadata/MetadataRewriter.java

@@ -1,6 +1,8 @@
 package us.myles.ViaVersion.metadata;
 
 import io.netty.buffer.ByteBuf;
+import lombok.Getter;
+import lombok.Setter;
 import org.bukkit.entity.EntityType;
 import org.bukkit.util.EulerAngle;
 import org.bukkit.util.Vector;
@@ -10,7 +12,6 @@ import us.myles.ViaVersion.transformers.OutgoingTransformer;
 import us.myles.ViaVersion.util.PacketUtil;
 
 import java.util.ArrayList;
-import java.util.Iterator;
 import java.util.List;
 import java.util.UUID;
 
@@ -19,9 +20,7 @@ public class MetadataRewriter {
     public static void writeMetadata1_9(EntityType type, List<Entry> list, ByteBuf output) {
         short id = -1;
         int data = -1;
-        Iterator<Entry> iterator = list.iterator();
+        for (Entry entry : list) {
-        while (iterator.hasNext()) {
-            Entry entry = iterator.next(); //
             MetaIndex metaIndex = entry.index;
             try {
                 if (metaIndex.getNewType() != NewType.Discontinued) {
@@ -34,7 +33,7 @@ public class MetadataRewriter {
                         case Byte:
                             // convert from int, byte
                             if (metaIndex.getOldType() == Type.Byte) {
-                                output.writeByte(((Byte) value).byteValue());
+                                output.writeByte((Byte) value);
                             }
                             if (metaIndex.getOldType() == Type.Int) {
                                 output.writeByte(((Integer) value).byteValue());
@@ -56,10 +55,10 @@ public class MetadataRewriter {
                         case BlockID:
                             // if we have both sources :))
                             if (metaIndex.getOldType() == Type.Byte) {
-                                data = ((Byte) value).byteValue();
+                                data = (Byte) value;
                             }
                             if (metaIndex.getOldType() == Type.Short) {
-                                id = ((Short) value).shortValue();
+                                id = (Short) value;
                             }
                             if (id != -1 && data != -1) {
                                 int combined = id << 4 | data;
@@ -77,20 +76,20 @@ public class MetadataRewriter {
                                 PacketUtil.writeVarInt(((Short) value).intValue(), output);
                             }
                             if (metaIndex.getOldType() == Type.Int) {
-                                PacketUtil.writeVarInt(((Integer) value).intValue(), output);
+                                PacketUtil.writeVarInt((Integer) value, output);
                             }
                             break;
                         case Float:
-                            output.writeFloat(((Float) value).floatValue());
+                            output.writeFloat((Float) value);
                             break;
                         case String:
                             PacketUtil.writeString((String) value, output);
                             break;
                         case Boolean:
                             if (metaIndex == MetaIndex.AGEABLE_AGE)
-                                output.writeBoolean(((Byte) value).byteValue() < 0);
+                                output.writeBoolean((Byte) value < 0);
                             else
-                                output.writeBoolean(((Byte) value).byteValue() != 0);
+                                output.writeBoolean((Byte) value != 0);
                             break;
                         case Slot:
                             ItemStack item = (ItemStack) value;
@@ -186,7 +185,9 @@ public class MetadataRewriter {
         return entries;
     }
 
-    public static class Entry {
+    @Getter
+    @Setter
+    public static final class Entry {
 
         private final int oldID;
         private MetaIndex index;

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

@@ -1,5 +1,10 @@
 package us.myles.ViaVersion.metadata;
 
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@Getter
 public enum NewType {
     Byte(0),
     VarInt(1),
@@ -15,13 +20,7 @@ public enum NewType {
     OptUUID(11),
     BlockID(12),
     Discontinued(99);
+
     private final int typeID;
 
-    NewType(int typeID){
-        this.typeID = typeID;
-    }
-
-    public int getTypeID() {
-        return typeID;
-    }
 }

src/main/java/us/myles/ViaVersion/metadata/Type.java

@@ -1,5 +1,10 @@
 package us.myles.ViaVersion.metadata;
 
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@Getter
 public enum Type {
     Byte(0),
     Short(1),
@@ -11,14 +16,6 @@ public enum Type {
     Rotation(7);
     private final int typeID;
 
-    Type(int typeID){
-        this.typeID = typeID;
-    }
-
-    public int getTypeID() {
-        return typeID;
-    }
-
     public static Type byId(int id) {
         return values()[id];
     }

src/main/java/us/myles/ViaVersion/slot/ItemSlotRewriter.java

@@ -17,182 +17,10 @@ import java.util.Map;
 
 public class ItemSlotRewriter {
 
-    public static void rewrite1_9To1_8(ByteBuf input, ByteBuf output) throws CancelException {
+    private static final Map<String, Integer> ENTTIY_NAME_TO_ID = new HashMap<>();
-        try {
+    private static final Map<Integer, String> ENTTIY_ID_TO_NAME = new HashMap<>();
-            ItemStack item = readItemStack(input);
+    private static final Map<String, Integer> POTION_NAME_TO_ID = new HashMap<>();
-            fixIdsFrom1_9To1_8(item);
+    private static final Map<Integer, String> POTION_ID_TO_NAME = new HashMap<>();
-            writeItemStack(item, output);
-        } catch (Exception e) {
-            System.out.println("Error while rewriting an item slot.");
-            e.printStackTrace();
-            throw new CancelException();
-        }
-    }
-
-    public static void rewrite1_8To1_9(ByteBuf input, ByteBuf output) throws CancelException {
-        try {
-            ItemStack item = readItemStack(input);
-            fixIdsFrom1_8To1_9(item);
-            writeItemStack(item, output);
-        } catch (Exception e) {
-            System.out.println("Error while rewriting an item slot.");
-            e.printStackTrace();
-            throw new CancelException();
-        }
-    }
-
-    public static void fixIdsFrom1_9To1_8(ItemStack item) {
-        if (item != null) {
-            if (item.id == Material.MONSTER_EGG.getId() && item.data == 0) {
-                CompoundTag tag = item.tag;
-                int data = 0;
-                if (tag != null && tag.get("EntityTag") instanceof CompoundTag) {
-                    CompoundTag entityTag = tag.get("EntityTag");
-                    if (entityTag.get("id") instanceof StringTag) {
-                        StringTag id = entityTag.get("id");
-                        if (ENTTIY_NAME_TO_ID.containsKey(id.getValue()))
-                            data = ENTTIY_NAME_TO_ID.get(id.getValue());
-                    }
-                }
-                item.tag = null;
-                item.data = (short) data;
-            }
-            if (item.id == Material.POTION.getId()) {
-                CompoundTag tag = item.tag;
-                int data = 0;
-                if (tag != null && tag.get("Potion") instanceof StringTag) {
-                    StringTag potion = tag.get("Potion");
-                    String potionName = potion.getValue().replace("minecraft:", "");
-                    if (POTION_NAME_TO_ID.containsKey(potionName)) {
-                        data = POTION_NAME_TO_ID.get(potionName);
-                    }
-                }
-                item.tag = null;
-                item.data = (short) data;
-            }
-            if (item.id == 438) {
-                CompoundTag tag = item.tag;
-                int data = 0;
-                item.id = (short) Material.POTION.getId();
-                if (tag != null && tag.get("Potion") instanceof StringTag) {
-                    StringTag potion = tag.get("Potion");
-                    String potionName = potion.getValue().replace("minecraft:", "");
-                    if (POTION_NAME_TO_ID.containsKey(potionName)) {
-                        data = POTION_NAME_TO_ID.get(potionName) + 8192;
-                    }
-                }
-                item.tag = null;
-                item.data = (short) data;
-            }
-        }
-    }
-
-    public static void fixIdsFrom1_8To1_9(ItemStack item) {
-        if (item != null) {
-            if (item.id == Material.MONSTER_EGG.getId() && item.data != 0) {
-                CompoundTag tag = item.tag;
-                if (tag == null) {
-                    tag = new CompoundTag("tag");
-                }
-                CompoundTag entityTag = new CompoundTag("EntityTag");
-                if (ENTTIY_ID_TO_NAME.containsKey(Integer.valueOf(item.data))) {
-                    StringTag id = new StringTag("id", ENTTIY_ID_TO_NAME.get(Integer.valueOf(item.data)));
-                    entityTag.put(id);
-                    tag.put(entityTag);
-                }
-                item.tag = tag;
-                item.data = 0;
-            }
-            if (item.id == Material.POTION.getId()) {
-                CompoundTag tag = item.tag;
-                if (tag == null) {
-                    tag = new CompoundTag("tag");
-                }
-                if (item.data >= 16384) {
-                    item.id = 438; // splash id
-                    item.data = (short) (item.data - 8192);
-                }
-                if (POTION_ID_TO_NAME.containsKey(Integer.valueOf(item.data))) {
-                    String name = POTION_ID_TO_NAME.get(Integer.valueOf(item.data));
-                    StringTag potion = new StringTag("Potion", "minecraft:" + name);
-                    tag.put(potion);
-                }
-                item.tag = tag;
-                item.data = 0;
-            }
-            if (item.id == Material.WRITTEN_BOOK.getId()) {
-                CompoundTag tag = item.tag;
-                if (tag == null) {
-                    tag = new CompoundTag("tag");
-                }
-                ListTag pages = tag.get("pages");
-                if (pages == null) {
-                    pages = new ListTag("pages", Collections.<Tag>singletonList(new StringTag(OutgoingTransformer.fixJson(""))));
-                    tag.put(pages);
-                    item.tag = tag;
-                    return;
-                }
-
-                for (int i = 0; i < pages.size(); i++) {
-                    if (!(pages.get(i) instanceof StringTag))
-                        continue;
-                    StringTag page = pages.get(i);
-                    page.setValue(OutgoingTransformer.fixJson(page.getValue()));
-                }
-                item.tag = tag;
-            }
-        }
-    }
-
-    public static ItemStack readItemStack(ByteBuf input) throws IOException {
-        short id = input.readShort();
-        if (id < 0) {
-
-            return null;
-        } else {
-            ItemStack item = new ItemStack();
-            item.id = id;
-            item.amount = input.readByte();
-            item.data = input.readShort();
-            item.tag = PacketUtil.readNBT(input);
-            return item;
-        }
-    }
-
-    public static void writeItemStack(ItemStack item, ByteBuf output) throws IOException {
-        if (item == null) {
-            output.writeShort(-1);
-        } else {
-            output.writeShort(item.id);
-            output.writeByte(item.amount);
-            output.writeShort(item.data);
-            PacketUtil.writeNBT(output, item.tag);
-        }
-    }
-
-    public static class ItemStack {
-
-        public short id;
-        public byte amount;
-        public short data;
-        public CompoundTag tag;
-
-        public static ItemStack fromBukkit(org.bukkit.inventory.ItemStack stack) {
-            if(stack == null) return null;
-            ItemStack item = new ItemStack();
-            item.id = (short) stack.getTypeId();
-            item.amount = (byte) stack.getAmount();
-            item.data = stack.getData().getData();
-            // TODO: nbt
-            return item;
-        }
-    }
-
-    private static Map<String, Integer> ENTTIY_NAME_TO_ID = new HashMap<>();
-    private static Map<Integer, String> ENTTIY_ID_TO_NAME = new HashMap<>();
-
-    private static Map<String, Integer> POTION_NAME_TO_ID = new HashMap<>();
-    private static Map<Integer, String> POTION_ID_TO_NAME = new HashMap<>();
 
     static {
         /* Entities */
@@ -311,6 +139,159 @@ public class ItemSlotRewriter {
 
     }
 
+    public static void rewrite1_9To1_8(ByteBuf input, ByteBuf output) throws CancelException {
+        try {
+            ItemStack item = readItemStack(input);
+            fixIdsFrom1_9To1_8(item);
+            writeItemStack(item, output);
+        } catch (Exception e) {
+            System.out.println("Error while rewriting an item slot.");
+            e.printStackTrace();
+            throw new CancelException();
+        }
+    }
+
+    public static void rewrite1_8To1_9(ByteBuf input, ByteBuf output) throws CancelException {
+        try {
+            ItemStack item = readItemStack(input);
+            fixIdsFrom1_8To1_9(item);
+            writeItemStack(item, output);
+        } catch (Exception e) {
+            System.out.println("Error while rewriting an item slot.");
+            e.printStackTrace();
+            throw new CancelException();
+        }
+    }
+
+    public static void fixIdsFrom1_9To1_8(ItemStack item) {
+        if (item != null) {
+            if (item.id == Material.MONSTER_EGG.getId() && item.data == 0) {
+                CompoundTag tag = item.tag;
+                int data = 0;
+                if (tag != null && tag.get("EntityTag") instanceof CompoundTag) {
+                    CompoundTag entityTag = tag.get("EntityTag");
+                    if (entityTag.get("id") instanceof StringTag) {
+                        StringTag id = entityTag.get("id");
+                        if (ENTTIY_NAME_TO_ID.containsKey(id.getValue()))
+                            data = ENTTIY_NAME_TO_ID.get(id.getValue());
+                    }
+                }
+                item.tag = null;
+                item.data = (short) data;
+            }
+            if (item.id == Material.POTION.getId()) {
+                CompoundTag tag = item.tag;
+                int data = 0;
+                if (tag != null && tag.get("Potion") instanceof StringTag) {
+                    StringTag potion = tag.get("Potion");
+                    String potionName = potion.getValue().replace("minecraft:", "");
+                    if (POTION_NAME_TO_ID.containsKey(potionName)) {
+                        data = POTION_NAME_TO_ID.get(potionName);
+                    }
+                }
+                item.tag = null;
+                item.data = (short) data;
+            }
+            if (item.id == 438) {
+                CompoundTag tag = item.tag;
+                int data = 0;
+                item.id = (short) Material.POTION.getId();
+                if (tag != null && tag.get("Potion") instanceof StringTag) {
+                    StringTag potion = tag.get("Potion");
+                    String potionName = potion.getValue().replace("minecraft:", "");
+                    if (POTION_NAME_TO_ID.containsKey(potionName)) {
+                        data = POTION_NAME_TO_ID.get(potionName) + 8192;
+                    }
+                }
+                item.tag = null;
+                item.data = (short) data;
+            }
+        }
+    }
+
+    public static void fixIdsFrom1_8To1_9(ItemStack item) {
+        if (item != null) {
+            if (item.id == Material.MONSTER_EGG.getId() && item.data != 0) {
+                CompoundTag tag = item.tag;
+                if (tag == null) {
+                    tag = new CompoundTag("tag");
+                }
+                CompoundTag entityTag = new CompoundTag("EntityTag");
+                if (ENTTIY_ID_TO_NAME.containsKey((int) item.data)) {
+                    StringTag id = new StringTag("id", ENTTIY_ID_TO_NAME.get((int) item.data));
+                    entityTag.put(id);
+                    tag.put(entityTag);
+                }
+                item.tag = tag;
+                item.data = 0;
+            }
+            if (item.id == Material.POTION.getId()) {
+                CompoundTag tag = item.tag;
+                if (tag == null) {
+                    tag = new CompoundTag("tag");
+                }
+                if (item.data >= 16384) {
+                    item.id = 438; // splash id
+                    item.data = (short) (item.data - 8192);
+                }
+                if (POTION_ID_TO_NAME.containsKey((int) item.data)) {
+                    String name = POTION_ID_TO_NAME.get((int) item.data);
+                    StringTag potion = new StringTag("Potion", "minecraft:" + name);
+                    tag.put(potion);
+                }
+                item.tag = tag;
+                item.data = 0;
+            }
+            if (item.id == Material.WRITTEN_BOOK.getId()) {
+                CompoundTag tag = item.tag;
+                if (tag == null) {
+                    tag = new CompoundTag("tag");
+                }
+                ListTag pages = tag.get("pages");
+                if (pages == null) {
+                    pages = new ListTag("pages", Collections.<Tag>singletonList(new StringTag(OutgoingTransformer.fixJson(""))));
+                    tag.put(pages);
+                    item.tag = tag;
+                    return;
+                }
+
+                for (int i = 0; i < pages.size(); i++) {
+                    if (!(pages.get(i) instanceof StringTag))
+                        continue;
+                    StringTag page = pages.get(i);
+                    page.setValue(OutgoingTransformer.fixJson(page.getValue()));
+                }
+                item.tag = tag;
+            }
+        }
+    }
+
+    public static ItemStack readItemStack(ByteBuf input) throws IOException {
+        short id = input.readShort();
+        if (id < 0) {
+
+            return null;
+        } else {
+            ItemStack item = new ItemStack();
+            item.id = id;
+            item.amount = input.readByte();
+            item.data = input.readShort();
+            item.tag = PacketUtil.readNBT(input);
+            return item;
+        }
+    }
+
+    public static void writeItemStack(ItemStack item, ByteBuf output) throws IOException {
+        if (item == null) {
+            output.writeShort(-1);
+        } else {
+            output.writeShort(item.id);
+            output.writeByte(item.amount);
+            output.writeShort(item.data);
+            PacketUtil.writeNBT(output, item.tag);
+        }
+    }
+
     private static void registerEntity(Integer id, String name) {
         ENTTIY_ID_TO_NAME.put(id, name);
         ENTTIY_NAME_TO_ID.put(name, id);
@@ -320,4 +301,22 @@ public class ItemSlotRewriter {
         POTION_ID_TO_NAME.put(id, name);
         POTION_NAME_TO_ID.put(name, id);
     }
+
+    public static class ItemStack {
+
+        public short id;
+        public byte amount;
+        public short data;
+        public CompoundTag tag;
+
+        public static ItemStack fromBukkit(org.bukkit.inventory.ItemStack stack) {
+            if(stack == null) return null;
+            ItemStack item = new ItemStack();
+            item.id = (short) stack.getTypeId();
+            item.amount = (byte) stack.getAmount();
+            item.data = stack.getData().getData();
+            // TODO: nbt
+            return item;
+        }
+    }
 }

src/main/java/us/myles/ViaVersion/sounds/SoundCategory.java

@@ -1,5 +1,10 @@
 package us.myles.ViaVersion.sounds;
 
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+@RequiredArgsConstructor
+@Getter
 public enum SoundCategory {
 
 
@@ -14,20 +19,7 @@ public enum SoundCategory {
     AMBIENT("ambient", 8),
     VOICE("voice", 9);
 
-    private String name;
+    private final String name;
-    private int id;
+    private final int id;
-
-    SoundCategory(String name, int id) {
-        this.name = name;
-        this.id = id;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public int getId() {
-        return id;
-    }
 
 }

src/main/java/us/myles/ViaVersion/sounds/SoundEffect.java

@@ -1,5 +1,8 @@
 package us.myles.ViaVersion.sounds;
 
+import lombok.Getter;
+
+@Getter
 public enum SoundEffect {
 
     MOB_HORSE_ZOMBIE_IDLE("mob.horse.zombie.idle", "entity.zombie_horse.ambient", SoundCategory.NEUTRAL),
@@ -249,21 +252,21 @@ public enum SoundEffect {
     MUSIC_GAME_END_CREDITS("music.game.end.credits", "music.credits", SoundCategory.MUSIC),
     MUSIC_GAME_CREATIVE("music.game.creative", "music.creative", SoundCategory.MUSIC);
 
-    private String name;
+    private final String name;
-    private String newname;
+    private final String newName;
-    private SoundCategory cat;
+    private final SoundCategory category;
-    private boolean breaksound;
+    private final boolean breaksound;
 
     SoundEffect(String name, String newname, SoundCategory cat) {
-        this.cat = cat;
+        this.category = cat;
-        this.newname = newname;
+        this.newName = newname;
         this.name = name;
         this.breaksound = name.startsWith("dig.");
     }
     
     SoundEffect(String name, String newname, SoundCategory cat, boolean shouldIgnore) {
-        this.cat = cat;
+        this.category = cat;
-        this.newname = newname;
+        this.newName = newname;
         this.name = name;
         this.breaksound = name.startsWith("dig.") || shouldIgnore;
     }
@@ -277,20 +280,4 @@ public enum SoundEffect {
         return null;
     }
 
-    public String getNewName() {
-        return newname;
-    }
-
-    public String getName() {
-        return name;
-    }
-
-    public SoundCategory getCategory() {
-        return cat;
-    }
-    
-    public boolean isBreakPlaceSound() {
-    	return breaksound;
-    }
-
 }

src/main/java/us/myles/ViaVersion/transformers/IncomingTransformer.java

@@ -188,40 +188,44 @@ public class IncomingTransformer {
             byte[] b = new byte[input.readableBytes()];
             input.readBytes(b);
             // patch books
-            if (name.equals("MC|BSign")) {
+            switch (name) {
-                ByteBuf in = Unpooled.wrappedBuffer(b);
+                case "MC|BSign": {
-                try {
+                    ByteBuf in = Unpooled.wrappedBuffer(b);
-                    ItemSlotRewriter.ItemStack stack = ItemSlotRewriter.readItemStack(in);
+                    try {
-                    stack.id = (short) Material.WRITTEN_BOOK.getId();
+                        ItemSlotRewriter.ItemStack stack = ItemSlotRewriter.readItemStack(in);
-                    // write
+                        stack.id = (short) Material.WRITTEN_BOOK.getId();
-                    ItemSlotRewriter.writeItemStack(stack, output);
+                        // write
-                } catch (IOException e) {
+                        ItemSlotRewriter.writeItemStack(stack, output);
-                    e.printStackTrace();
+                    } catch (IOException e) {
+                        e.printStackTrace();
+                    }
+                    return;
                 }
-                return;
+                case "MC|AutoCmd": {
-            } else if (name.equals("MC|AutoCmd")) {
+                    ByteBuf in = Unpooled.wrappedBuffer(b);
-                ByteBuf in = Unpooled.wrappedBuffer(b);
+                    int x = in.readInt();
-                int x = in.readInt();
+                    int y = in.readInt();
-                int y = in.readInt();
+                    int z = in.readInt();
-                int z = in.readInt();
+                    String command = PacketUtil.readString(in);
-                String command = PacketUtil.readString(in);
+                    boolean flag = in.readBoolean();
-                boolean flag = in.readBoolean();
 
-                output.clear();
+                    output.clear();
-                PacketUtil.writeVarInt(PacketType.PLAY_PLUGIN_MESSAGE_REQUEST.getPacketID(), output);
+                    PacketUtil.writeVarInt(PacketType.PLAY_PLUGIN_MESSAGE_REQUEST.getPacketID(), output);
-                PacketUtil.writeString("MC|AdvCdm", output);
+                    PacketUtil.writeString("MC|AdvCdm", output);
-                output.writeByte(0);
+                    output.writeByte(0);
-                output.writeInt(x);
+                    output.writeInt(x);
-                output.writeInt(y);
+                    output.writeInt(y);
-                output.writeInt(z);
+                    output.writeInt(z);
-                PacketUtil.writeString(command, output);
+                    PacketUtil.writeString(command, output);
-                output.writeBoolean(flag);
+                    output.writeBoolean(flag);
-                return;
+                    return;
-            } else if (name.equals("MC|AdvCmd")) {
+                }
-                output.clear();
+                case "MC|AdvCmd":
-                PacketUtil.writeVarInt(PacketType.PLAY_PLUGIN_MESSAGE_REQUEST.getPacketID(), output);
+                    output.clear();
-                PacketUtil.writeString("MC|AdvCdm", output);
+                    PacketUtil.writeVarInt(PacketType.PLAY_PLUGIN_MESSAGE_REQUEST.getPacketID(), output);
-                output.writeBytes(b);
+                    PacketUtil.writeString("MC|AdvCdm", output);
+                    output.writeBytes(b);
+                    break;
             }
             output.writeBytes(b);
         }

src/main/java/us/myles/ViaVersion/transformers/OutgoingTransformer.java

@@ -3,6 +3,7 @@ package us.myles.ViaVersion.transformers;
 import io.netty.buffer.ByteBuf;
 import io.netty.buffer.ByteBufInputStream;
 import io.netty.buffer.ByteBufOutputStream;
+import lombok.RequiredArgsConstructor;
 import org.bukkit.entity.EntityType;
 import org.json.simple.JSONObject;
 import org.json.simple.parser.JSONParser;
@@ -33,18 +34,38 @@ import java.util.*;
 
 import static us.myles.ViaVersion.util.PacketUtil.*;
 
+@RequiredArgsConstructor
 public class OutgoingTransformer {
-    private final ConnectionInfo info;
+
     private final ViaVersionPlugin plugin = (ViaVersionPlugin) ViaVersion.getInstance();
+
+    private final ConnectionInfo info;
+    private final Map<Integer, UUID> uuidMap = new HashMap<>();
+    private final Map<Integer, EntityType> clientEntityTypes = new HashMap<>();
+    private final Map<Integer, Integer> vehicleMap = new HashMap<>();
     private boolean cancel = false;
     private boolean autoTeam = false;
 
-    private Map<Integer, UUID> uuidMap = new HashMap<Integer, UUID>();
+    public static String fixJson(String line) {
-    private Map<Integer, EntityType> clientEntityTypes = new HashMap<Integer, EntityType>();
+        if (line == null || line.equalsIgnoreCase("null")) {
-    private Map<Integer, Integer> vehicleMap = new HashMap<>();
+            line = "{\"text\":\"\"}";
-
+        } else {
-    public OutgoingTransformer(ConnectionInfo info) {
+            if ((!line.startsWith("\"") || !line.endsWith("\"")) && (!line.startsWith("{") || !line.endsWith("}"))) {
-        this.info = info;
+                JSONObject obj = new JSONObject();
+                obj.put("text", line);
+                return obj.toJSONString();
+            }
+            if (line.startsWith("\"") && line.endsWith("\"")) {
+                line = "{\"text\":" + line + "}";
+            }
+        }
+        try {
+            new JSONParser().parse(line);
+        } catch (Exception e) {
+            System.out.println("Invalid JSON String: \"" + line + "\" Please report this issue to the ViaVersion Github: " + e.getMessage());
+            return "{\"text\":\"\"}";
+        }
+        return line;
     }
 
     public void transform(int packetID, ByteBuf input, ByteBuf output) throws CancelException {
@@ -75,7 +96,7 @@ public class OutgoingTransformer {
             int catid = 0;
             String newname = name;
             if (effect != null) {
-                if (effect.isBreakPlaceSound()) {
+                if (effect.isBreaksound()) {
                     throw new CancelException();
                 }
                 catid = effect.getCategory().getId();
@@ -633,12 +654,7 @@ public class OutgoingTransformer {
                     if (autoTeam && name.equalsIgnoreCase(info.getUsername())) {
                         if (mode == 4) {
                             // since removing add to auto team
-                            plugin.run(new Runnable() {
+                            plugin.run(() -> sendTeamPacket(true), false);
-                                @Override
-                                public void run() {
-                                    sendTeamPacket(true);
-                                }
-                            }, false);
                         } else {
                             // since adding remove from auto team
                             sendTeamPacket(false);
@@ -730,9 +746,7 @@ public class OutgoingTransformer {
             if (info.getLastPacket().getClass().getName().endsWith("PacketPlayOutMapChunkBulk")) {
                 try {
                     sk = ReflectionUtil.get(info.getLastPacket(), "d", boolean.class);
-                } catch (NoSuchFieldException e) {
+                } catch (NoSuchFieldException | IllegalAccessException e) {
-                    e.printStackTrace();
-                } catch (IllegalAccessException e) {
                     e.printStackTrace();
                 }
             }
@@ -774,28 +788,6 @@ public class OutgoingTransformer {
         info.sendRawPacket(buf);
     }
 
-    public static String fixJson(String line) {
-        if (line == null || line.equalsIgnoreCase("null")) {
-            line = "{\"text\":\"\"}";
-        } else {
-            if ((!line.startsWith("\"") || !line.endsWith("\"")) && (!line.startsWith("{") || !line.endsWith("}"))) {
-                JSONObject obj = new JSONObject();
-                obj.put("text", line);
-                return obj.toJSONString();
-            }
-            if (line.startsWith("\"") && line.endsWith("\"")) {
-                line = "{\"text\":" + line + "}";
-            }
-        }
-        try {
-            new JSONParser().parse(line);
-        } catch (Exception e) {
-            System.out.println("Invalid JSON String: \"" + line + "\" Please report this issue to the ViaVersion Github: " + e.getMessage());
-            return "{\"text\":\"\"}";
-        }
-        return line;
-    }
-
     private void transformMetadata(int entityID, ByteBuf input, ByteBuf output) throws CancelException {
         EntityType type = clientEntityTypes.get(entityID);
         if (type == null) {

src/main/java/us/myles/ViaVersion/update/UpdateListener.java

@@ -1,17 +1,15 @@
 package us.myles.ViaVersion.update;
 
+import lombok.RequiredArgsConstructor;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.Listener;
 import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.plugin.Plugin;
 
+@RequiredArgsConstructor
 public class UpdateListener implements Listener {
-	
+
-	private Plugin plugin;
+	private final Plugin plugin;
-	
-	public UpdateListener(Plugin plugin) {
-		this.plugin = plugin;
-	}
 	
 	@EventHandler
 	public void onJoin(PlayerJoinEvent e) {

src/main/java/us/myles/ViaVersion/update/Version.java

@@ -9,7 +9,7 @@ public class Version implements Comparable<Version> {
         if (value == null)
             throw new IllegalArgumentException("Version can not be null");
 
-        if (value.matches("^[0-9]+(\\.[0-9]+)*$") == false)
+        if (!value.matches("^[0-9]+(\\.[0-9]+)*$"))
             throw new IllegalArgumentException("Invalid version format");
 
         String[] split = value.split("\\.");
@@ -19,16 +19,6 @@ public class Version implements Comparable<Version> {
             parts[i] = Integer.parseInt(split[i]);
     }
 
-    @Override
-    public String toString() {
-        String[] split = new String[parts.length];
-
-        for (int i = 0; i < parts.length; i += 1)
-            split[i] = String.valueOf(parts[i]);
-
-        return StringUtils.join(split, ".");
-    }
-
     public static int compare(Version verA, Version verB) {
         if (verA == verB) return 0;
         if (verA == null) return -1;
@@ -46,18 +36,25 @@ public class Version implements Comparable<Version> {
         return 0;
     }
 
+    public static boolean equals(Version verA, Version verB) {
+        return verA == verB || verA != null && verB != null && compare(verA, verB) == 0;
+    }
+
+    @Override
+    public String toString() {
+        String[] split = new String[parts.length];
+
+        for (int i = 0; i < parts.length; i += 1)
+            split[i] = String.valueOf(parts[i]);
+
+        return StringUtils.join(split, ".");
+    }
+
     @Override
     public int compareTo(Version that) {
         return compare(this, that);
     }
 
-    public static boolean equals(Version verA, Version verB) {
-        if (verA == verB) return true;
-        if (verA == null) return false;
-        if (verB == null) return false;
-        return compare(verA, verB) == 0;
-    }
-
     @Override
     public boolean equals(Object that) {
         return that instanceof Version && equals(this, (Version) that);

src/main/java/us/myles/ViaVersion/util/EntityUtil.java

@@ -3,6 +3,7 @@ package us.myles.ViaVersion.util;
 import org.bukkit.entity.EntityType;
 
 public class EntityUtil {
+
     public static EntityType getTypeFromID(int typeID, boolean isObject) {
         if (isObject) {
             return getObjectFromID(typeID);

src/main/java/us/myles/ViaVersion/util/PacketUtil.java

@@ -69,12 +69,10 @@ public class PacketUtil {
     }
 
     public static List<Object> callDecode(ByteToMessageDecoder decoder, ChannelHandlerContext ctx, Object input) {
-        List<Object> output = new ArrayList<Object>();
+        List<Object> output = new ArrayList<>();
         try {
             PacketUtil.DECODE_METHOD.invoke(decoder, ctx, input, output);
-        } catch (IllegalAccessException e) {
+        } catch (IllegalAccessException | InvocationTargetException e) {
-            e.printStackTrace();
-        } catch (InvocationTargetException e) {
             e.printStackTrace();
         }
         return output;
@@ -83,9 +81,7 @@ public class PacketUtil {
     public static void callEncode(MessageToByteEncoder encoder, ChannelHandlerContext ctx, Object msg, ByteBuf output) {
         try {
             PacketUtil.ENCODE_METHOD.invoke(encoder, ctx, msg, output);
-        } catch (IllegalAccessException e) {
+        } catch (IllegalAccessException | InvocationTargetException e) {
-            e.printStackTrace();
-        } catch (InvocationTargetException e) {
             e.printStackTrace();
         }
     }
@@ -169,7 +165,7 @@ public class PacketUtil {
 
     public static List<String> readStringArray(ByteBuf buf) {
         int len = readVarInt(buf);
-        List<String> ret = new ArrayList<String>(len);
+        List<String> ret = new ArrayList<>(len);
         for (int i = 0; i < len; i++) {
             ret.add(readString(buf));
         }
@@ -258,8 +254,8 @@ public class PacketUtil {
     }
 
     public static void writeLongs(long[] data, ByteBuf output) {
-        for (int index = 0; index < data.length; index++) {
+        for (long aData : data) {
-            output.writeLong(data[index]);
+            output.writeLong(aData);
         }
     }