https://bugs.winehq.org/show_bug.cgi?id=51628
--- Comment #5 from Fabian Maurer dark.shadow4@web.de ---
Just detected the origin, that's a glitch within JDK 1.6 For some reason, the JDK 1.6 graphics is broken into 6.15 update
Does the same happen on windows? If not, that's still a bug with wine...