Exception in thread "Thread-103" java.lang.StackOverflowError

I suddenly keep getting this error when I try to compile my project.
Using Arduino 1.03 on Opensuse 12.1.

I did no new installs, no updates no nothing. It just worked the one moment and stopped working 3 mins later...

Anybody any idea what's wrong and how to fix it? I'm in the middle of a project. It's really a bad time for the IDE to stop working...

-Stefan

Error log: Arduino IDE Java error on compile - Pastebin.com