From 4b9d472f10e2edc9ac26c0416948437cbfcb32e2 Mon Sep 17 00:00:00 2001
From: TfT_02 <tft_02@hotmail.com>
Date: Wed, 12 Feb 2014 11:16:05 +0100
Subject: [PATCH] Fix ConcurrentModificationException with
 alchemyBrewTask.finishImmediately()

Fixes #1848
---
 .../java/com/gmail/nossr50/skills/alchemy/Alchemy.java    | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/main/java/com/gmail/nossr50/skills/alchemy/Alchemy.java b/src/main/java/com/gmail/nossr50/skills/alchemy/Alchemy.java
index 57059b8c6..1873dae70 100644
--- a/src/main/java/com/gmail/nossr50/skills/alchemy/Alchemy.java
+++ b/src/main/java/com/gmail/nossr50/skills/alchemy/Alchemy.java
@@ -1,6 +1,8 @@
 package com.gmail.nossr50.skills.alchemy;
 
+import java.util.ArrayList;
 import java.util.HashMap;
+import java.util.List;
 import java.util.Map;
 
 import org.bukkit.block.BlockState;
@@ -61,7 +63,13 @@ public final class Alchemy {
     public static void finishAllBrews() {
         mcMMO.p.debug("Completing " + brewingStandMap.size() + " unfinished Alchemy brews.");
 
+        List<AlchemyBrewTask> toFinish = new ArrayList<AlchemyBrewTask>();
+
         for (AlchemyBrewTask alchemyBrewTask : brewingStandMap.values()) {
+            toFinish.add(alchemyBrewTask);
+        }
+
+        for (AlchemyBrewTask alchemyBrewTask : toFinish) {
             alchemyBrewTask.finishImmediately();
         }
     }