Well, check out phex cvs. The swing problem is still there but most of the time You wont notice. Even more important. After a "good" focus switch phex will recover completely. At least for me. You can't be to sure about all the different X-Servers. There is basicaly an override for the swing focusmanager now. This workaround is inactive for MacOS and windows. If it crashes or behaves worse than before please post here and/or send an email to me.
Alexander