Code:
Ubuntu 12.04.2 (32 bit)
Linux 3.8.0-19-lowlatency #13-Ubuntu SMP PREEMPT Thu Apr 18 09:42:14 UTC 2013 i686 i686 i386 GNU/Linux
fluxbox-1.3.2-2 (window manager)
OpenJDK Runtime Environment (IcedTea 2.3.9) (7u21-2.3.9-0ubuntu0.12.04.1)
OpenJDK Server VM (build 23.7-b01, mixed mode)
But I don't suppose you will be able to reproduce this configuration... My hope was that somebody on the team would remember the window-system code commit that caused all the focus stealing problems. I'm *guessing* that somebody made a change to improve window raising visibility or something like that.