JAVA HELP in requesting focus, PLEASE HELP?

the code i wrote is written such that, I had to put a focuslistener in one of the textfield (which unfortunately) happen to be in the top and getting the automatic focus, whenever i try to even close the program the error code(that i wrote in case) pops up. so i tried to all the googling and all but nothing yet found useful, consulted other yahoo answer too but no clue... HELP ANYONE, THANK YOU