Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb715b767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb715b8b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0xb76bba9d]
#3 /opt/java/jre/lib/i386/xawt/libmawt.so [0xb49ae64e]
#4 /opt/java/jre/lib/i386/xawt/libmawt.so [0xb498cf97]
#5 /opt/java/jre/lib/i386/xawt/libmawt.so [0xb498d248]
#6 /opt/java/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x2f) [0xb498d54f]
#7 [0xae12268e]
#8 [0xae11aedd]
#9 [0xae11aedd]
#10 [0xae118243]
#11 /opt/java/jre/lib/i386/client/libjvm.so [0x620bc6d]
#12 /opt/java/jre/lib/i386/client/libjvm.so [0x630a828]
#13 /opt/java/jre/lib/i386/client/libjvm.so [0x620bb00]
#14 /opt/java/jre/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x34b) [0x62619bb]
#15 /opt/java/jre/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) [0xb72f196d]
#16 [0xae12268e]
#17 [0xae11ad77]
#18 [0xae118243]
#19 /opt/java/jre/lib/i386/client/libjvm.so [0x620bc6d]
opera: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
Aborted