2011-09-29 18:46:30 [WARNING] Task of 'Heroes' generated an exception
java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:806)
	at java.util.HashMap$EntryIterator.next(HashMap.java:847)
	at java.util.HashMap$EntryIterator.next(HashMap.java:845)
	at com.herocraftonline.dev.heroes.hero.EffectUpdater.run(HeroManager.java:289)
	at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:137)
	at net.minecraft.server.MinecraftServer.h(MinecraftServer.java:441)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:374)
	at net.minecraft.server.ThreadServerApplication.run(SourceFile:417)