From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Wed, 4 May 2016 23:55:48 -0400
Subject: [PATCH] ensureServerConversions API

This will take a Bukkit ItemStack and run it through any conversions a server process would perform on it,
to ensure it meets latest minecraft expectations.

diff --git a/src/main/java/org/bukkit/inventory/ItemFactory.java b/src/main/java/org/bukkit/inventory/ItemFactory.java
index a6795b102c9678b122dfd3b36d02783b9e108b48..74cd662d0594f2fbc5aa30ba64d9e4928145dbb9 100644
--- a/src/main/java/org/bukkit/inventory/ItemFactory.java
+++ b/src/main/java/org/bukkit/inventory/ItemFactory.java
@@ -207,4 +207,18 @@ public interface ItemFactory {
     @Deprecated
     String getI18NDisplayName(@Nullable ItemStack item);
     // Paper end - add getI18NDisplayName
+
+    // Paper start - ensure server conversions API
+    /**
+     * Minecraft's updates are converting simple item stacks into more complex NBT oriented Item Stacks.
+     *
+     * Use this method to ensure any desired data conversions are processed.
+     * The input itemstack will not be the same as the returned itemstack.
+     *
+     * @param item The item to process conversions on
+     * @return A potentially Data-Converted-ItemStack
+     */
+    @NotNull
+    ItemStack ensureServerConversions(@NotNull ItemStack item);
+    // Paper end - ensure server conversions API
 }
diff --git a/src/main/java/org/bukkit/inventory/ItemStack.java b/src/main/java/org/bukkit/inventory/ItemStack.java
index 09a36df6edce2a283df80c67d5ef62da7ff73555..a8faa4c1881bae4d47d901388a78b991d138b518 100644
--- a/src/main/java/org/bukkit/inventory/ItemStack.java
+++ b/src/main/java/org/bukkit/inventory/ItemStack.java
@@ -537,7 +537,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat
             }
         }
 
-        return result;
+        return result.ensureServerConversions(); // Paper
     }
 
     /**
@@ -619,6 +619,19 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat
         return Bukkit.getServer().getItemFactory().displayName(this);
     }
 
+    /**
+     * Minecraft updates are converting simple item stacks into more complex NBT oriented Item Stacks.
+     *
+     * Use this method to ensure any desired data conversions are processed.
+     * The input itemstack will not be the same as the returned itemstack.
+     *
+     * @return A potentially Data Converted ItemStack
+     */
+    @NotNull
+    public ItemStack ensureServerConversions() {
+        return Bukkit.getServer().getItemFactory().ensureServerConversions(this);
+    }
+
     /**
      * Gets the Display name as seen in the Client.
      * Currently the server only supports the English language. To override this,