I have come across a couple of known bugs in GCJ as I have been incorporating some open source systems into a project I am working on. I was wondering if this group has a "top 10 issues" and their symptoms guide? Could members pitch-in their most common gripes? I'm currently scratching my head over an IncompatibleClassChangeError with the java.lang.reflect.Constructor newInstance method. I'll let you know how it turns out. Before I learned of this project I made a couple of workarounds for GCJ bug 9866 in JTidy. If anyone's interested I can pass on the changes. Best regards, Phil