похоже под openjdk6 это не работает. забыл добавить, чтоя на фре.
> netbeans-6.9.1 --laf GTK
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x0000000823806536, pid=89636, tid=34801396544
#
# JRE version: 6.0-b22
# Java VM: OpenJDK 64-Bit Server VM (19.0-b09 mixed mode bsd-amd64 compressed oops)
# Problematic frame:
# C [libGL.so.1+0x7c536] glXCreateWindow+0xe186
#
# An error report file with more information is saved as:
# /home/ross/hs_err_pid89636.log
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#
Abort trap