From 2b83b65f69d58e1dcb46cf403c9aa6922f8e68ae Mon Sep 17 00:00:00 2001
From: shadowislord <shadowislord@gmail.com>
Date: Sun, 7 Sep 2014 15:46:27 -0400
Subject: [PATCH] Change the compare function error in ListSort to be more user
 friendly and indicate the likely cause of the error.

---
 jme3-core/src/main/java/com/jme3/util/ListSort.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/jme3-core/src/main/java/com/jme3/util/ListSort.java b/jme3-core/src/main/java/com/jme3/util/ListSort.java
index 5d3bbc6fc..002458b36 100644
--- a/jme3-core/src/main/java/com/jme3/util/ListSort.java
+++ b/jme3-core/src/main/java/com/jme3/util/ListSort.java
@@ -699,7 +699,8 @@ public class ListSort<T> {
             // The last element of run A belongs at the end of the merge.
             arr[dest + lengthB] = tempArray[iterA];
         } else if(lengthA== 0){
-            throw new UnsupportedOperationException("Inconsistant comparison function");
+            throw new UnsupportedOperationException("Compare function result changed! " +
+                                                    "Make sure you do not modify the scene from another thread!");
         } else {//Fail label
             System.arraycopy(tempArray, iterA, arr, dest, lengthA);
         }