2012-06-03 12:15:15 [INFO] [BringBackTheEnd] Rebuild thread failed with error: java.util.ConcurrentModificationException
2012-06-03 12:15:15 [SEVERE] java.util.ConcurrentModificationException
2012-06-03 12:15:15 [SEVERE]    at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:819)
2012-06-03 12:15:15 [SEVERE]    at java.util.ArrayList$Itr.next(ArrayList.java:791)
2012-06-03 12:15:15 [SEVERE]    at org.bukkit.craftbukkit.CraftWorld.getEntities(CraftWorld.java:538)
2012-06-03 12:15:15 [SEVERE]    at net.jamartinezm.BBTE.BringBackTheEndPlugin.hasDragon(BringBackTheEndPlugin.java:270)
2012-06-03 12:15:15 [SEVERE]    at net.jamartinezm.BBTE.BringBackTheEndPlugin.resetTheEndForWorld(BringBackTheEndPlugin.java:356)
2012-06-03 12:15:15 [SEVERE]    at net.jamartinezm.BBTE.BringBackTheEndResetThread.run(BringBackTheEndResetThread.java:68)
2012-06-03 12:15:15 [SEVERE]    at org.bukkit.craftbukkit.scheduler.CraftWorker.run(CraftWorker.java:34)
2012-06-03 12:15:15 [SEVERE]    at java.lang.Thread.run(Thread.java:722)
2012-06-03 12:15:15 [INFO] There was a problem resetting The End! Contact your admins!