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path: root/nms-patches/PacketDataSerializer.patch
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--- a/net/minecraft/server/PacketDataSerializer.java
+++ b/net/minecraft/server/PacketDataSerializer.java
@@ -20,9 +20,12 @@
 import java.nio.charset.Charset;
 import java.util.UUID;
 
+import org.bukkit.craftbukkit.inventory.CraftItemStack; // CraftBukkit
+
 public class PacketDataSerializer extends ByteBuf {
 
     private final ByteBuf a;
+    int version = 107; // CraftBukkkit
 
     public PacketDataSerializer(ByteBuf bytebuf) {
         this.a = bytebuf;
@@ -119,7 +122,7 @@
     }
 
     public <T extends Enum<T>> T a(Class<T> oclass) {
-        return ((Enum[]) oclass.getEnumConstants())[this.g()];
+        return ((T[]) oclass.getEnumConstants())[this.g()]; // CraftBukkit - fix decompile error
     }
 
     public PacketDataSerializer a(Enum<?> oenum) {
@@ -196,7 +199,7 @@
         } else {
             try {
                 NBTCompressedStreamTools.a(nbttagcompound, (DataOutput) (new ByteBufOutputStream(this)));
-            } catch (IOException ioexception) {
+            } catch (Exception ioexception) { // CraftBukkit - IOException -> Exception
                 throw new EncoderException(ioexception);
             }
         }
@@ -222,7 +225,7 @@
     }
 
     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()));
@@ -250,6 +253,11 @@
 
             itemstack = new ItemStack(Item.getById(short0), b0, short1);
             itemstack.setTag(this.j());
+            // CraftBukkit start
+            if (itemstack.getTag() != null) {
+                CraftItemStack.setItemMeta(itemstack, CraftItemStack.getItemMeta(itemstack));
+            }
+            // CraftBukkit end
         }
 
         return itemstack;