From d97890f63015395b9fcf7bc382686ddfe5f3e266 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 52a8d4d8..99b90629 100644
--- a/src/main/java/org/bukkit/inventory/ItemFactory.java
+++ b/src/main/java/org/bukkit/inventory/ItemFactory.java
@@ -121,4 +121,17 @@ public interface ItemFactory {
      * @return the default color for leather armor
      */
     Color getDefaultLeatherColor();
+
+    // Paper start
+    /**
+     * Minecart updates are converting simple item stacks into more complex NBT oriented Item Stacks.
+     *
+     * Use this method to 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
+     */
+    ItemStack ensureServerConversions(ItemStack item);
+    // Paper end
 }
diff --git a/src/main/java/org/bukkit/inventory/ItemStack.java b/src/main/java/org/bukkit/inventory/ItemStack.java
index 188ae6d7..6bb19b9d 100644
--- a/src/main/java/org/bukkit/inventory/ItemStack.java
+++ b/src/main/java/org/bukkit/inventory/ItemStack.java
@@ -556,7 +556,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable {
             }
         }
 
-        return result;
+        return result.ensureServerConversions(); // Paper
     }
 
     /**
@@ -608,4 +608,18 @@ public class ItemStack implements Cloneable, ConfigurationSerializable {
 
         return true;
     }
+
+    // Paper start
+    /**
+     * Minecart updates are converting simple item stacks into more complex NBT oriented Item Stacks.
+     *
+     * Use this method to 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
+     */
+    public ItemStack ensureServerConversions() {
+        return Bukkit.getServer().getItemFactory().ensureServerConversions(this);
+    }
+    // Paper end
 }
-- 
2.13.3