java applications don't start giving a backtrace on ground of locking assertion failure

[sibidiba]

Binary package hint: xserver-xorg-video-intel

On current Hardy, all sun-java5 packages installed:

I found no graphical java application I could run (not even java setting in the menu). All of them crashed, example console output:

Oracle SQL Developer
 Copyright (c) 2006, 2007, Oracle. All rights reserved.

Using oracle.home=/opt/sqldeveloper
Using ide.user.dir=/home/czigola/.sqldeveloper
Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb1335767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb13358b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0x8b14d29d]
#3 /usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/i386/xawt/libmawt.so [0x8b240d7e]
#4 /usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/i386/xawt/libmawt.so [0x8b22ad47]
#5 /usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/i386/xawt/libmawt.so [0x8b22aec3]
#6 /usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x26) [0x8b22b106]
#7 [0xb1400008]
#8 [0xb13f9b6b]
#9 [0xb13f9b6b]
#10 [0xb13f7236]
#11 /usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/i386/server/libjvm.so [0xb769eeac]
#12 /usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/i386/server/libjvm.so [0xb786eb68]
#13 /usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/i386/server/libjvm.so [0xb769ecdf]
#14 /usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/i386/server/libjvm.so(JVM_DoPrivileged+0x32d) [0xb76fc7ed]
#15 /usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb73ad30d]
#16 [0xb13ff898]
#17 [0xb13f9a94]
#18 [0xb13f7236]
#19 /usr/lib/jvm/java-1.5.0-sun-1.5.0.14/jre/lib/i386/server/libjvm.so [0xb769eeac]
java: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
/opt/sqldeveloper/sqldeveloper/bin/../../ide/bin/launcher.sh: line 478: 324 Aborted (core dumped) ${JAVA} ${APP_VM_OPTS} ${APP_SCRIPT_USER_HOME} ${APP_ENV_VARS} -classpath ${APP_CLASSPATH} ${APP_MAIN_CLASS} ${APP_APP_OPTS}

A workaround is to set the environmental variable LIBXCB_ALLOW_SLOPPY_LOCK to 1.