From b02d5605bac4c8543b6f9fb6935a997cb2fe4149 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 762c43d6..045c26d9 100644
--- a/src/main/java/org/bukkit/inventory/ItemFactory.java
+++ b/src/main/java/org/bukkit/inventory/ItemFactory.java
@@ -134,4 +134,16 @@ public interface ItemFactory {
      */
     @Deprecated
     Material updateMaterial(final ItemMeta meta, final Material material) throws IllegalArgumentException;
+    // 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 73f79b22..14b6b6b3 100644
--- a/src/main/java/org/bukkit/inventory/ItemStack.java
+++ b/src/main/java/org/bukkit/inventory/ItemStack.java
@@ -487,7 +487,12 @@ public class ItemStack implements Cloneable, ConfigurationSerializable {
             }
         }
 
-        return result;
+        // Set damage again incase meta overwrote it
+        if (args.containsKey("damage")) {
+            result.setDurability(damage);
+        }
+
+        return result.ensureServerConversions(); // Paper
     }
 
     /**
@@ -545,4 +550,18 @@ 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
 }
-- 
2.18.0