From 09ab39a23831b96e3596d1916e98693f45719312 Mon Sep 17 00:00:00 2001
From: Uristqwerty <Uristqwerty@gmail.com>
Date: Mon, 24 Dec 2012 20:40:09 -0500
Subject: [PATCH] Force parent ListenerListInsts to rebuild.

Without this change, it is possible (and, in fact, nearly guaranteed) for lists to rebuild endlessly if a parent list is marked as needing a rebuild but never actually read. This change forces the parent list(s) to rebuild as well, resulting in a significant performance increase and smoother framerate due to greatly reduced GC activity.
---
 common/net/minecraftforge/event/ListenerList.java | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/common/net/minecraftforge/event/ListenerList.java b/common/net/minecraftforge/event/ListenerList.java
index b88a4c86e..7600d777c 100644
--- a/common/net/minecraftforge/event/ListenerList.java
+++ b/common/net/minecraftforge/event/ListenerList.java
@@ -185,6 +185,11 @@ public class ListenerList
          */
         private void buildCache()
         {        
+            if(parent != null && parent.shouldRebuild())
+            {
+                parent.buildCache();
+            }
+            
             ArrayList<IEventListener> ret = new ArrayList<IEventListener>();
             for (EventPriority value : EventPriority.values())
             {