Update to Minecraft 1.9

By: md_5 <git@md-5.net>

paper-server/nms-patches/PacketDataSerializer.patch

@@ -1,6 +1,6 @@
 --- a/net/minecraft/server/PacketDataSerializer.java
 +++ b/net/minecraft/server/PacketDataSerializer.java
-@@ -21,6 +21,8 @@
+@@ -20,6 +20,8 @@
  import java.nio.charset.Charset;
  import java.util.UUID;
  
@@ -9,16 +9,16 @@
  public class PacketDataSerializer extends ByteBuf {
  
      private final ByteBuf a;
-@@ -68,7 +70,7 @@
+@@ -99,7 +101,7 @@
      }
  
      public <T extends Enum<T>> T a(Class<T> oclass) {
--        return ((Enum[]) oclass.getEnumConstants())[this.e()];
-+        return ((T[]) oclass.getEnumConstants())[this.e()]; // CraftBukkit - fix decompile error
+-        return ((Enum[]) oclass.getEnumConstants())[this.g()];
++        return ((T[]) oclass.getEnumConstants())[this.g()]; // CraftBukkit - fix decompile error
      }
  
-     public void a(Enum<?> oenum) {
-@@ -142,7 +144,7 @@
+     public PacketDataSerializer a(Enum<?> oenum) {
+@@ -176,7 +178,7 @@
          } else {
              try {
                  NBTCompressedStreamTools.a(nbttagcompound, (DataOutput) (new ByteBufOutputStream(this)));
@@ -27,19 +27,19 @@
                  throw new EncoderException(ioexception);
              }
          }
-@@ -162,7 +164,7 @@
+@@ -202,7 +204,7 @@
      }
  
-     public void a(ItemStack itemstack) {
+     public PacketDataSerializer a(ItemStack itemstack) {
 -        if (itemstack == null) {
 +        if (itemstack == null || itemstack.getItem() == null) { // CraftBukkit - NPE fix itemstack.getItem()
              this.writeShort(-1);
          } else {
              this.writeShort(Item.getId(itemstack.getItem()));
-@@ -189,6 +191,11 @@
+@@ -230,6 +232,11 @@
  
              itemstack = new ItemStack(Item.getById(short0), b0, short1);
-             itemstack.setTag(this.h());
+             itemstack.setTag(this.j());
 +            // CraftBukkit start
 +            if (itemstack.getTag() != null) {
 +                CraftItemStack.setItemMeta(itemstack, CraftItemStack.getItemMeta(itemstack));
@@ -48,20 +48,3 @@
          }
  
          return itemstack;
-@@ -803,16 +810,4 @@
-     public boolean release(int i) {
-         return this.a.release(i);
-     }
--
--    public ReferenceCounted retain(int i) {
--        return this.retain(i);
--    }
--
--    public ReferenceCounted retain() {
--        return this.retain();
--    }
--
--    public int compareTo(Object object) {
--        return this.compareTo((ByteBuf) object);
--    }
- }