Comment 31 for bug 185311

Just for conformance i get the error too. It appears whenever i start a java gui application that uses swing/awt. Applications that uses swt (e.g. eclipse) don't appear to have the error.

Here the error output:

Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb53cb767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb53cb8b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0xb54151bd]
#3 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/xawt/libmawt.so [0xb54f68ce]
#4 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/xawt/libmawt.so [0xb54d3067]
#5 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/xawt/libmawt.so [0xb54d3318]
#6 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x2f) [0xb54d361f]
#7 [0xb5cc5ecd]
#8 [0xb5cbeedd]
#9 [0xb5cbeedd]
#10 [0xb5cbc249]
#11 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/client/libjvm.so [0x621c40d]
#12 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/client/libjvm.so [0x6310378]
#13 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/client/libjvm.so [0x621c2a0]
#14 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x363) [0x6272153]
#15 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb7cd796d]
#16 [0xb5cc5ecd]
#17 [0xb5cbed77]
#18 [0xb5cbc249]
#19 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/client/libjvm.so [0x621c40d]
Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb53cb767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb53cb81e]
#2 /usr/lib/libX11.so.6 [0xb5414518]
#3 /usr/lib/libX11.so.6(XGetVisualInfo+0x26) [0xb540b0a6]
#4 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/xawt/libmawt.so [0xb54d2319]
#5 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/xawt/libmawt.so [0xb54d2565]
#6 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/xawt/libmawt.so [0xb54d33c9]
#7 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x2f) [0xb54d361f]
#8 [0xb5cc5ecd]
#9 [0xb5cbeedd]
#10 [0xb5cbeedd]
#11 [0xb5cbc249]
#12 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/client/libjvm.so [0x621c40d]
#13 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/client/libjvm.so [0x6310378]
#14 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/client/libjvm.so [0x621c2a0]
#15 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x363) [0x6272153]
#16 /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb7cd796d]
#17 [0xb5cc5ecd]
#18 [0xb5cbed77]
#19 [0xb5cbc249]