From 06fe4d6b9ad6c3428208e91624e8608b501b20fa Mon Sep 17 00:00:00 2001
From: CraftBukkit/Spigot <noreply+git-craftbukkit@papermc.io>
Date: Thu, 29 Dec 2011 22:31:55 +1100
Subject: [PATCH] CraftItemStack: Make sure this.item is not null when cloning.

Fixes BUKKIT-424

By: Andrew Ardill <andrew.ardill@gmail.com>
---
 .../java/org/bukkit/craftbukkit/inventory/CraftItemStack.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/paper-server/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java b/paper-server/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
index c0854276d1..b1bde111a9 100644
--- a/paper-server/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
+++ b/paper-server/src/main/java/org/bukkit/craftbukkit/inventory/CraftItemStack.java
@@ -212,7 +212,7 @@ public class CraftItemStack extends ItemStack {
 
     @Override
     public CraftItemStack clone() {
-        return new CraftItemStack(this.item.cloneItemStack());
+        return new CraftItemStack(this.item == null ? this.item : this.item.cloneItemStack());
     }
 
     public static net.minecraft.server.ItemStack createNMSItemStack(ItemStack original) {