Choosing GTK L&F will cause following SIGSEGV. This is reproduces always.

#
# An unexpected error has been detected by Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0xfb0b7219, pid=10101, tid=23
#
# Java VM: Java HotSpot(TM) Server VM (1.6.0_02-ea-b02 mixed mode)
# Problematic frame:
# J javax.swing.UIDefaults.get(Ljava/lang/Object;)Ljava/lang/Object;
#
# If you would like to submit a bug report, please visit:
# http://java.sun.com/webapps/bugreport/crash.jsp
#

--------------- T H R E A D ---------------

Current thread (0x083ed000): JavaThread "AWT-EventQueue-0" [_thread_in_Java, id=23]

siginfo:si_signo=11, si_errno=0, si_code=1, si_addr=0x00010115

Registers:
EAX=0x00000000, EBX=0x00000005, ECX=0x000ca9ca, EDX=0x00000000
ESP=0xb5fb6f80, EBP=0x00000003, ESI=0x00010101, EDI=0x00000010
EIP=0xfb0b7219, EFLAGS=0x00010246

Top of Stack: (sp=0xb5fb6f80)
0xb5fb6f80: b5fb6fac b6f0e088 00000000 00000000
0xb5fb6f90: 00000000 b6f0ce38 bb466108 fb002f0d
0xb5fb6fa0: 00000000 f693c588 00000000 f6940a50
0xb5fb6fb0: b5fb6fb0 b6f0db08 b5fb6fe0 b6f0e088
0xb5fb6fc0: 083ed005 b6f0db18 b5fb7014 fb002da7
0xb5fb6fd0: b5fb7014 fb002f0d b6f13260 fb002da7
0xb5fb6fe0: b6f0ce38 f693c588 000000cd f693f958
0xb5fb6ff0: f693f958 b5fb6ff4 b6ef48ec b5fb7184

Instructions: (pc=0xfb0b7219)
0xfb0b7209: 90 b8 08 28 c8 b6 e8 4c d2 fc ff 8b d0 8b 70 04
0xfb0b7219: 8b 4e 14 81 f9 70 8a c3 b6 74 2b 81 fe 70 8a c3

Stack: [0xb5f68000,0xb5fb8000), sp=0xb5fb6f80, free space=315k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)J javax.swing.UIDefaults.get(Ljava/lang/Object;)Ljava/lang/Object;


--------------- P R O C E S S ---------------

Java Threads: ( => current thread )
  0x0807b800 JavaThread "DestroyJavaVM" [_thread_blocked, id=3]
  0x08473800 JavaThread "TimerQueue" daemon [_thread_blocked, id=24]
=>0x083ed000 JavaThread "AWT-EventQueue-0" [_thread_in_Java, id=23]
  0x082ec400 JavaThread "AWT-Shutdown" [_thread_blocked, id=22]
  0x082d4000 JavaThread "AWT-XAWT" daemon [_thread_in_native, id=21]
  0x08264800 JavaThread "Java2D Disposer" daemon [_thread_blocked, id=20]
  0x083b2800 JavaThread "Low Memory Detector" daemon [_thread_blocked, id=18]
  0x083b1000 JavaThread "CompilerThread1" daemon [_thread_blocked, id=17]
  0x083afc00 JavaThread "CompilerThread0" daemon [_thread_blocked, id=16]
  0x083aec00 JavaThread "Signal Dispatcher" daemon [_thread_blocked, id=15]
  0x08399c00 JavaThread "Finalizer" daemon [_thread_blocked, id=14]
  0x08399000 JavaThread "Reference Handler" daemon [_thread_blocked, id=13]

Other Threads:
  0x08396400 VMThread [id=12]
  0x083b4000 WatcherThread [id=19]

VM state:not at safepoint (normal execution)

VM Mutex/Monitor currently owned by a thread: None

Heap
 PSYoungGen total 106368K, used 54520K [0xf3c00000, 0xfae00000, 0xfae00000)
  eden space 98176K, 47% used [0xf3c00000,0xf694e140,0xf9be0000)
  from space 8192K, 99% used [0xf9be0000,0xfa3d0218,0xfa3e0000)
  to space 10368K, 0% used [0xfa3e0000,0xfa3e0000,0xfae00000)
 PSOldGen total 116736K, used 26481K [0xbac00000, 0xc1e00000, 0xf3c00000)
  object space 116736K, 22% used [0xbac00000,0xbc5dc670,0xc1e00000)
 PSPermGen total 16384K, used 12489K [0xb6c00000, 0xb7c00000, 0xbac00000) object space 16384K, 76% used [0xb6c00000,0xb78326d0,0xb7c00000)

Dynamic libraries:
0x08050000 /home/so129345/x86/jdk1.6.0_02/bin/java
0xfef90000 /lib/libthread.so.1
0xfef70000 /home/so129345/x86/jdk1.6.0_02/bin/../jre/lib/i386/jli/libjli.so
0xfefa0000 /lib/libdl.so.1
0xfee60000 /lib/libc.so.1
0xfe600000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/server/libjvm.so
0xfee20000 /lib/libsocket.so.1
0xfee40000 /usr/lib/libsched.so.1
0xfede0000 /lib/libm.so.1
0xfedb0000 /usr/lib/libCrun.so.1
0xfee00000 /lib/libdoor.so.1
0xfece0000 /lib/libnsl.so.1
0xfec80000 /lib/libm.so.2
0xfe5d0000 /lib/libscf.so.1
0xfe5b0000 /lib/libuutil.so.1
0xfe590000 /lib/libgen.so.1
0xfe560000 /lib/libmd.so.1
0xfe530000 /lib/libmp.so.2
0xfe4e0000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/libsplashscreen.so
0xfe440000 /usr/lib/libX11.so.4
0xfe400000 /usr/lib/libXext.so.0
0xfe3f0000 /lib/libpthread.so.1
0xfe3a0000 /usr/openwin/lib/libXau.so.6
0xfe1d0000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/native_threads/libhpi.so
0xfe190000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/libverify.so
0xfe140000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/libjava.so
0xfe110000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/libzip.so
0xb6320000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/libawt.so
0xb6200000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/libmlib_image.so
0xb61b0000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/xawt/libmawt.so
0xb6190000 /usr/openwin/lib/libXtst.so.1
0xb6170000 /usr/openwin/lib/libXi.so.5
0xb60c0000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/libfontmanager.so
0xb5e90000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/libnet.so
0xb5e70000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/libnio.so
0xb5e60000 /lib/librt.so.1
0xb5e30000 /usr/lib/libsendfile.so.1
0xb5d80000 /home/so129345/x86/jdk1.6.0_02/jre/lib/i386/libjpeg.so
0xb5a00000 /usr/lib/libgtk-x11-2.0.so.0
0xb5960000 /usr/lib/libgdk-x11-2.0.so.0
0xb58b0000 /usr/lib/libglib-2.0.so.0
0xfe2b0000 /usr/lib/libgobject-2.0.so.0
0xb4800000 /usr/lib/libmlib.so.2
0xb3800000 /usr/lib/libmlib/libmlib_sse2.so.2
0xb3790000 /usr/lib/libcairo.so.2
0xb5880000 /usr/lib/libgdk_pixbuf-2.0.so.0
0xb5d60000 /usr/lib/libgmodule-2.0.so.0
0xb3760000 /usr/lib/libatk-1.0.so.0
0xb3710000 /usr/lib/libpango-1.0.so.0
0xb5860000 /usr/lib/iconv/UTF-8%8859-1.so
0xb36b0000 /usr/lib/gtk-2.0/2.10.0/engines/libnimbus.so
0xb3690000 /usr/X11/lib/libXrandr.so.2
0xb3670000 /usr/sfw/lib/libXrender.so.1
0xb3640000 /usr/lib/libpangocairo-1.0.so.0
0xb35e0000 /usr/lib/libfontconfig.so.1
0xb3530000 /usr/sfw/lib/libfreetype.so.6
0xb34e0000 /usr/lib/libpng12.so.0
0xb34b0000 /usr/lib/libz.so.1
0xb3470000 /usr/lib/libpangoft2-1.0.so.0
0xb3410000 /usr/sfw/lib/libexpat.so.0
0xb33f0000 /usr/lib/gtk-2.0/2.4.0/immodules/im-iiim.so
0xb33d0000 /usr/lib/libSM.so.6
0xb33a0000 /usr/lib/libICE.so.6
0xb3350000 /usr/lib/libiiimcf.so.3
0xb3310000 /usr/lib/libiiimp.so.1
0xb32e0000 /usr/lib/iiim/le/atokx2/atokx2aux.so
0xb32c0000 /usr/lib/iiim/le/cle/auxiliary_windows/auxiliary_object.so
0xb3190000 /usr/lib/libxml2.so.2
0xb3160000 /usr/lib/iiim/le/hkle/auxiliary_windows/auxiliary_object.so
0xb3140000 /usr/lib/iiim/le/kole/auxiliary_windows/aux.so
0xb3110000 /usr/lib/iiim/le/thaile/auxiliary_windows/aux.so
0xb30f0000 /usr/lib/iiim/le/twle/auxiliary_windows/auxiliary_object.so
0xb30d0000 /usr/lib/iiim/le/wnn8/xaux/WnnAUX.so
0xb3080000 /usr/lib/iconv/646%UTF-8.so
0xb3060000 /usr/lib/pango/1.5.0/modules/pango-basic-fc.so

VM Arguments:
java_command: SwingSet2.jar
Launcher Type: SUN_STANDARD

Environment Variables:
JAVA_HOME=/usr/java
PATH=/opt2/maven-1.0.2/bin:/usr/java/bin:/opt/starsuite8/program:/share/tsc/local/firefox:/net/yo/opt2/share/tools:/usr/local/bin:/usr/ccs/bin:/usr/sfw/bin:/opt/sfw/bin:/usr/dt/bin:/usr/openwin/bin:.:/home/so129345:/home/so129345/.dist:/usr/dist/local/exe:/usr/dist/exe:/usr/SUNWale/bin:/bin:/usr/bin:/usr/sbin:/usr/ucb:/usr/etc:/usr/dist/local/share/newsprint/bin:/share/tsc/local/bin
LD_LIBRARY_PATH=/home/so129345/x86/jdk1.6.0_02/jre/lib/i386/server:/home/so129345/x86/jdk1.6.0_02/jre/lib/i386:/home/so129345/x86/jdk1.6.0_02/jre/../lib/i386
SHELL=/bin/csh
DISPLAY=sr2-ctyo03-13:48.0

Signal Handlers:
SIGSEGV: [libjvm.so+0x4f2100], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
SIGBUS: [libjvm.so+0x4f2100], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
SIGFPE: [libjvm.so+0xfa8fc], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
SIGPIPE: [libjvm.so+0xfa8fc], sa_mask[0]=0x00000000, sa_flags=0x00000012, flags was changed from 0x0000000c, consider using jsig library
SIGILL: [libjvm.so+0xfa8fc], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c
SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGUSR2: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000
SIGHUP: [libjvm.so+0x455e88], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIGINT: [libjvm.so+0x455e88], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIGQUIT: [libjvm.so+0x455e88], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIGTERM: [libjvm.so+0x455e88], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIGQUIT: [libjvm.so+0x455e88], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIGTERM: [libjvm.so+0x455e88], sa_mask[0]=0xffbffeff, sa_flags=0x00000004
SIG39: [libjvm.so+0x457898], sa_mask[0]=0x00000000, sa_flags=0x00000008
SIG40: [libjvm.so+0xfa8fc], sa_mask[0]=0xffbffeff, sa_flags=0x0000000c


--------------- S Y S T E M ---------------

OS: Solaris Nevada snv_55b X86
           Copyright 2007 Sun Microsystems, Inc. All Rights Reserved.
                        Use is subject to license terms.
                            Assembled 12 January 2007

uname:SunOS 5.11 snv_55b i86pc (T2 libthread)
rlimit: STACK 10240k, CORE 0k, NOFILE 65536, AS infinity
load average:1.21 1.10 1.06

CPU:total 8 (2 cores per cpu, 1 threads per core) family 15 model 33 stepping 0, cmov, cx8, fxsr, mmx, sse, sse2, sse3, mmxext, 3dnow, 3dnowext

Memory: 4k page, physical 8322084k(3276044k free)

vm_info: Java HotSpot(TM) Server VM (1.6.0_02-ea-b02) for solaris-x86, built on Apr 12 2007 02:50:55 by "" with unknown Workshop:0x580