Another "java.lang.ArrayIndexOutOfBoundsException" thread

So, I've been out of the lua game for quite a while, the first thing that I wanted to do to get the rust off of my was make a lumberjack.
I was streaming the process, so if you'd like to see the final product, I can link it.
But here's the code

http://pastebin.com/hdnsZh7H

I'm fairly certain the exception is occurring in the "turn()" function. But having never fully understood it, I'm not sure how to fix it, any tips?

You're recursively calling 'turn'. Don't do that - use a loop instead.

java.lang.arrayIndexOutOfBounds means you've overfilled the stack.