From 89944c09c92a54039bbf6b1608f6822a11f33e0e Mon Sep 17 00:00:00 2001
From: FearThe1337 <admin@fearthe1337.com>
Date: Wed, 17 Dec 2014 23:45:49 +0100
Subject: [PATCH] SPIGOT-231 and SPIGOT-229. Fix itemframe behaviour.

Confirmed fix for itemframes not showing up. Based on the code in
CraftPainting.
Besids this fix we now pass null itemstacks directly to the
EntityItemFrame to allow the removal of items in ItemFrames.
---
 .../craftbukkit/entity/CraftItemFrame.java    | 28 +++++++++++++++----
 1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java
index 8237093974..d27f24f810 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftItemFrame.java
@@ -1,6 +1,9 @@
 package org.bukkit.craftbukkit.entity;
 
+import net.minecraft.server.BlockPosition;
 import net.minecraft.server.EntityItemFrame;
+import net.minecraft.server.EnumDirection;
+import net.minecraft.server.ItemStack;
 import net.minecraft.server.WorldServer;
 
 import org.apache.commons.lang.Validate;
@@ -23,16 +26,31 @@ public class CraftItemFrame extends CraftHanging implements ItemFrame {
             return false;
         }
 
-        WorldServer world = ((CraftWorld) this.getWorld()).getHandle();
-        world.getTracker().untrackEntity(this.getHandle());
-        world.getTracker().track(this.getHandle());
+        update();
+
         return true;
     }
 
+    private void update() {
+        EntityItemFrame old = this.getHandle();
+
+        WorldServer world = ((CraftWorld) getWorld()).getHandle();
+        BlockPosition position = old.getBlockPosition();
+        EnumDirection direction = old.getDirection();
+        ItemStack item = old.getItem() != null ? old.getItem().cloneItemStack() : null;
+
+        old.die();
+
+        EntityItemFrame frame = new EntityItemFrame(world,position,direction);
+        frame.setItem(item);
+        world.addEntity(frame);
+        this.entity = frame;
+    }
+
+
     public void setItem(org.bukkit.inventory.ItemStack item) {
         if (item == null || item.getTypeId() == 0) {
-            getHandle().getDataWatcher().add(2, 5);
-            getHandle().getDataWatcher().update(2);
+            getHandle().setItem(null);
         } else {
             getHandle().setItem(CraftItemStack.asNMSCopy(item));
         }