java: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.

[Fabio Duran Verdugo]

When i try open any *.jar, i cant, the log is, for all aplication.

Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb5352767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb53528b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0xb53a229d]
#3 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so [0xb54848ce]
#4 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so [0xb5461067]
#5 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so [0xb5461318]
#6 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x2f) [0xb546161f]
#7 [0xb5c98e9d]
#8 [0xb5c91edd]
#9 [0xb5c91edd]
#10 [0xb5c8f249]
#11 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/client/libjvm.so [0x621c40d]
#12 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/client/libjvm.so [0x6310378]
#13 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/client/libjvm.so [0x621c2a0]
#14 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x363) [0x6272153]
#15 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb7caa96d]
#16 [0xb5c98e9d]
#17 [0xb5c91d77]
#18 [0xb5c8f249]
#19 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/client/libjvm.so [0x621c40d]
java: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
Cancelado (core dumped)

[Fabio Duran Verdugo (fabioduran)]

I think this is the solution, "export LIBXCB_ALLOW_SLOPPY_LOCK = 1," but I do not believe that it should do so the user but come default.

this bug is a defect

[Jarkko Lietolahti (jarkko-jab)]

See http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6532373 for more information. The bug was said to be fixed in JDK 1.6.0_04 but it's not.

[Jarkko Lietolahti (jarkko-jab)]

Being hit by this bug depends how X (or some library of it) was build. I noticed this bug earlier (maybe a week or two ago) but it went away after a new upgrade (X etc) arrived. I'm running Hardy.

[Daniel Swarbrick (pressureman)]

Hacky workaround described here:

http://daveshuck.instantspot.com/blog/2008/01/29/cxliblock-failed-error-on-Java-applications

Worked for me.

[Jouni Mäyrä (jouni-mayra)]

I confirm. I worked for me too. Thanks !

[Vaida Bogdan (vaidab)]

Confirmed, only the following line was needed:

sudo sed -i 's/XINERAMA/FAKEEXTN/g' /usr/lib/jvm/java-1.5.0-sun-1.5.0.14//jre/lib/i386/xawt/libmawt.so

PS: I got the solution from: http://objectmix.com/java/243152-exception-thread-main-java-lang-noclassdeffounderror-javax-media-opengl-gleventlistener.html