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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
@@ -23,6 +23,8 @@
 import java.util.UUID;
 import javax.annotation.Nullable;
 
+import org.bukkit.craftbukkit.inventory.CraftItemStack; // CraftBukkit
+
 public class PacketDataSerializer extends ByteBuf {
 
     private final ByteBuf a;
@@ -130,7 +132,7 @@
     }
 
     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) {
@@ -207,7 +209,7 @@
         } else {
             try {
                 NBTCompressedStreamTools.a(nbttagcompound, (DataOutput) (new ByteBufOutputStream(this)));
-            } catch (IOException ioexception) {
+            } catch (Exception ioexception) { // CraftBukkit - IOException -> Exception
                 throw new EncoderException(ioexception);
             }
         }
@@ -234,7 +236,7 @@
     }
 
     public PacketDataSerializer a(ItemStack itemstack) {
-        if (itemstack.isEmpty()) {
+        if (itemstack.isEmpty() || itemstack.getItem() == null) { // CraftBukkit - NPE fix itemstack.getItem()
             this.writeShort(-1);
         } else {
             Item item = itemstack.getItem();
@@ -263,6 +265,11 @@
             ItemStack itemstack = new ItemStack(Item.getById(short0), b0);
 
             itemstack.setTag(this.j());
+            // CraftBukkit start
+            if (itemstack.getTag() != null) {
+                CraftItemStack.setItemMeta(itemstack, CraftItemStack.getItemMeta(itemstack));
+            }
+            // CraftBukkit end
             return itemstack;
         }
     }