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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 c92843d0adb438d7a64a5d00ce67b67efd65ca14..3d08beee52f2247db6f6e679206ed6a965fbf9a8 100644
--- a/src/main/java/org/bukkit/inventory/ItemFactory.java
+++ b/src/main/java/org/bukkit/inventory/ItemFactory.java
@@ -236,4 +236,18 @@ public interface ItemFactory {
     @Deprecated(since = "1.18.1")
     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 da706fd72367b26b919ce08a5e118582020d4fbc..29bc12cb3095282a31f01f08ac66c15b24f42524 100644
--- a/src/main/java/org/bukkit/inventory/ItemStack.java
+++ b/src/main/java/org/bukkit/inventory/ItemStack.java
@@ -566,7 +566,7 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat
             }
         }
 
-        return result;
+        return result.ensureServerConversions(); // Paper
     }
 
     /**
@@ -643,6 +643,19 @@ 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,