All applications crash when using combo box

Hi all,

I upgraded to new Alpha release Karmic 9.10 and found a blocker bug in this distribution.

Every combo box based on GTK makes the application hang. Every application!

I can attach bug report from Eclipse IDE but I found the same in: Evolution, Mozilla, etc.

Look at:
# Problematic frame:
# C [libgtk-x11-2.0.so.0+0xb6e89]

---------------------------------------------------------------------------------------------------------

#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00007f601f319e89, pid=7071, tid=140052434762064
#
# JRE version: 6.0-b16
# Java VM: OpenJDK 64-Bit Server VM (14.0-b15 mixed mode linux-amd64 )
# Distribution: Ubuntu karmic (development branch), package 6b16~pre3-0ubuntu1
# Problematic frame:
# C [libgtk-x11-2.0.so.0+0xb6e89]
#
# If you would like to submit a bug report, please include
# instructions how to reproduce the bug and visit:
# https://bugs.launchpad.net/ubuntu/+source/openjdk-6/
# The crash happened outside the Java Virtual Machine in native code.
# See problematic frame for where to report the bug.
#

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

Current thread (0x00000000015b3800): JavaThread "main" [_thread_in_native, id=7072, stack(0x00007f607f8fb000,0x00007f607f9fc000)]

siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x000000002445e380

Registers:
RAX=0x00007f602445e380, RBX=0x000000002445e380, RCX=0x0000000000000001, RDX=0x000000000000000d
RSP=0x00007f607f9f77e0, RBP=0x00007f607f9f77ec, RSI=0x00007f607f9fba50, RDI=0x0000000000000000
R8 =0x0000000000000001, R9 =0x0000000000000001, R10=0x0000000000000001, R11=0x00007f602871b730
R12=0x000000002445e380, R13=0x00007f601f31fda0, R14=0x00007f607f9f78e0, R15=0x0000000000000000
RIP=0x00007f601f319e89, EFL=0x0000000000010202, CSGSFS=0x0000000000000033, ERR=0x0000000000000004
  TRAPNO=0x000000000000000e
---------------------------------

....

------------
Stack: [0x00007f607f8fb000,0x00007f607f9fc000], sp=0x00007f607f9f77e0, free space=1009k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
C [libgtk-x11-2.0.so.0+0xb6e89]

Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)
J org.eclipse.swt.internal.gtk.OS._gtk_main_do_event(J)V
J org.eclipse.swt.internal.gtk.OS.gtk_main_do_event(J)V
j org.eclipse.swt.widgets.Display.eventProc(JJ)J+132
v ~StubRoutines::call_stub
J org.eclipse.swt.internal.gtk.OS._g_main_context_iteration(JZ)Z
J org.eclipse.swt.internal.gtk.OS.g_main_context_iteration(JZ)Z
J org.eclipse.jface.window.Window.runEventLoop(Lorg/eclipse/swt/widgets/Shell;)V
j org.eclipse.jface.window.Window.open()I+49
j org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationsDialog.open()I+36
j org.eclipse.debug.internal.ui.launchConfigurations.LaunchConfigurationPropertiesDialog.open()I+6
j org.eclipse.debug.ui.DebugUITools.openLaunchConfigurationPropertiesDialog(Lorg/eclipse/swt/widgets/Shell;Lorg/eclipse/debug/core/ILaunchConfiguration;Ljava/lang/String;Lorg/eclipse/core/runtime/IStatus;)I+38
j org.eclipse.debug.ui.DebugUITools.openLaunchConfigurationPropertiesDialog(Lorg/eclipse/swt/widgets/Shell;Lorg/eclipse/debug/core/ILaunchConfiguration;Ljava/lang/String;)I+4
j org.hibernate.eclipse.console.actions.EditConsoleConfiguration.edit(Lorg/hibernate/console/ConsoleConfiguration;)V+76
j org.hibernate.eclipse.console.actions.EditConsoleConfiguration.doRun()V+76
j org.hibernate.eclipse.console.actions.ConsoleConfigurationBasedAction.run()V+1
j org.hibernate.eclipse.console.views.KnownConfigurationsView$3.run()V+39
j org.hibernate.eclipse.console.views.KnownConfigurationsView$1.doubleClick(Lorg/eclipse/jface/viewers/DoubleClickEvent;)V+7
j org.eclipse.jface.viewers.StructuredViewer$1.run()V+8
---------------------------------
--------------- S Y S T E M ---------------

OS:Ubuntu 9.10 (karmic)
uname:Linux 2.6.30-9-generic #10-Ubuntu SMP Fri Jun 12 13:08:18 UTC 2009 x86_64
libc:glibc 2.9 NPTL 2.9
rlimit: STACK 8192k, CORE 0k, NPROC infinity, NOFILE 1024, AS infinity
load average:0,38 0,82 0,74

CPU:total 4 (4 cores per cpu, 1 threads per core) family 16 model 4 stepping 2, cmov, cx8, fxsr, mmx, sse, sse2, sse3, mmxext, 3dnow, 3dnowext, sse4a

Memory: 4k page, physical 8106300k(1624096k free), swap 14651272k(14651272k free)

vm_info: OpenJDK 64-Bit Server VM (14.0-b15) for linux-amd64 JRE (1.6.0_0-b16), built on May 14 2009 23:54:28 by "buildd" with gcc 4.4.1

time: Tue Jun 23 11:48:36 2009
elapsed time: 277 seconds