But okay, there shouldn't have changed anything that accounts for such a change. I'll start by hunting down why you crash on mine but not on ender's with that regex...
edit: according to java documentation, that regex should always fail on java 6. So it's weird that it doesn't fail for ender's. Do you really not have the option to upgrade to 7? (I won't hold it against you that you don't upgrade to 8, I don't either
