It's a known issue. Add the following environment variable : export AWT_TOOLKIT=MToolkit It should solve your problem.
-- When Using Compiz-fusion effects sometimes Java windows content is empty https://bugs.launchpad.net/bugs/151021 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
