I'm using Diana 8858 on my macbook (10.5.5, Java update 2), and if I define a web service class with a webmethod, the IDEA will not give a response or show interaction at all. All other programs run well, idea doesn't crash just doesn't do anything, I can't change editor tabs either. Only the waiting cursor is shown.
What info should I provide in this case to help your work?
After became "not responding", I shut it down and here is the Apple error report attached.