From 8e08c9adb887d97229d015cda10d10e51f36af51 Mon Sep 17 00:00:00 2001
From: "Aidan C. Brady" <aidancbrady@aol.com>
Date: Tue, 12 Nov 2013 20:19:06 -0500
Subject: [PATCH] Once and for all fixed ConcurrentModificationException

---
 common/mekanism/api/transmitters/DynamicNetwork.java | 4 ++--
 common/mekanism/common/EnergyNetwork.java            | 4 +++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/common/mekanism/api/transmitters/DynamicNetwork.java b/common/mekanism/api/transmitters/DynamicNetwork.java
index 7d45dfdec..0478dc8c9 100644
--- a/common/mekanism/api/transmitters/DynamicNetwork.java
+++ b/common/mekanism/api/transmitters/DynamicNetwork.java
@@ -20,8 +20,8 @@ public abstract class DynamicNetwork<A, N> implements ITransmitterNetwork<A, N>
 {
 	public HashSet<ITransmitter<N>> transmitters = new HashSet<ITransmitter<N>>();
 	
-	public Set<A> possibleAcceptors = Collections.synchronizedSet(new HashSet<A>());
-	public Map<A, ForgeDirection> acceptorDirections = Collections.synchronizedMap(new HashMap<A, ForgeDirection>());
+	public HashSet<A> possibleAcceptors = new HashSet<A>();
+	public HashMap<A, ForgeDirection> acceptorDirections = new HashMap<A, ForgeDirection>();
 	
 	protected int ticksSinceCreate = 0;
 	
diff --git a/common/mekanism/common/EnergyNetwork.java b/common/mekanism/common/EnergyNetwork.java
index b27e8b4db..8713b7a19 100644
--- a/common/mekanism/common/EnergyNetwork.java
+++ b/common/mekanism/common/EnergyNetwork.java
@@ -164,7 +164,9 @@ public class EnergyNetwork extends DynamicNetwork<TileEntity, EnergyNetwork>
 	{
 		Set<TileEntity> toReturn = new HashSet<TileEntity>();
 		
-		for(TileEntity acceptor : possibleAcceptors)
+		Set<TileEntity> copy = (Set<TileEntity>)possibleAcceptors.clone();
+		
+		for(TileEntity acceptor : copy)
 		{
 			if(acceptor instanceof IStrictEnergyAcceptor)
 			{