From 76d6bc3cfa5071ce203c2b8f9a4231ec7b2cfc24 Mon Sep 17 00:00:00 2001
From: LexManos <LexManos@gmail.com>
Date: Wed, 12 Dec 2012 02:20:46 -0800
Subject: [PATCH] Fixes crash when mods add TreeMaps to the Configuration map,
 thanks AtomicStryker, PR: #282

---
 .../minecraftforge/common/Configuration.java  | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/common/net/minecraftforge/common/Configuration.java b/common/net/minecraftforge/common/Configuration.java
index 9ce71b27e8..9f05b7a2d5 100644
--- a/common/net/minecraftforge/common/Configuration.java
+++ b/common/net/minecraftforge/common/Configuration.java
@@ -695,6 +695,28 @@ public class Configuration
 
     private void save(BufferedWriter out) throws IOException
     {
+        //For compatiblitties sake just in case, Thanks Atomic, to be removed next MC version
+        //TO-DO: Remove next MC version
+        Object[] categoryArray = categories.values().toArray();
+        for (Object o : categoryArray)
+        {
+            if (o instanceof TreeMap)
+            {
+                TreeMap treeMap = (TreeMap)o;
+                ConfigCategory converted = new ConfigCategory(file.getName());
+                FMLLog.warning("Forge found a Treemap saved for Configuration file " + file.getName() + ", this is deprecated behaviour!");
+                
+                for (Object key : treeMap.keySet())
+                {
+                    FMLLog.warning("Converting Treemap to ConfigCategory, key: " + key + ", property value: " + ((Property)treeMap.get(key)).value);
+                    converted.set((String)key, (Property)treeMap.get(key));
+                }
+                
+                categories.values().remove(o);
+                categories.put(file.getName(), converted);
+            }
+        }
+        
         for (ConfigCategory cat : categories.values())
         {
             if (!cat.isChild())