From 4c5a58a93cd324de4bbb929a3feac630cd3a758d 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 cbcbe8c8a..8e602cf51 100644
--- a/src/main/java/org/bukkit/inventory/ItemFactory.java
+++ b/src/main/java/org/bukkit/inventory/ItemFactory.java
@@ -141,4 +141,17 @@ public interface ItemFactory {
     @Deprecated
     @NotNull
     Material updateMaterial(@NotNull final ItemMeta meta, @NotNull 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
+     */
+    @NotNull
+    ItemStack ensureServerConversions(@NotNull 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 7b709457f..e8f97c949 100644
--- a/src/main/java/org/bukkit/inventory/ItemStack.java
+++ b/src/main/java/org/bukkit/inventory/ItemStack.java
@@ -517,7 +517,12 @@ 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
     }
 
     /**
@@ -576,4 +581,19 @@ 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
+     */
+    @NotNull
+    public ItemStack ensureServerConversions() {
+        return Bukkit.getServer().getItemFactory().ensureServerConversions(this);
+    }
+    // Paper end
 }
-- 
2.21.0