Comment 2 for bug 172517

I'm getting this error when I try to run a GUI-based Java program:

$ java -jar myprogram.jar
Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0x2aaaf33ed97c]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x24) [0x2aaaf33eda84]
#2 /usr/lib/libX11.so.6(_XReply+0x10f) [0x2aaaf2b1f16f]
#3 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so [0x2aaaf2793826]
#4 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so [0x2aaaf27762ab]
#5 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so [0x2aaaf277657d]
#6 /usr/lib/jvm/java-6-sun-1.6.0.03/jre/lib/amd64/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x12) [0x2aaaf27767f2]
#7 [0x2aaaab9936b8]
java: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
Aborted

$ java -version
java version "1.6.0_03"
Java(TM) SE Runtime Environment (build 1.6.0_03-b05)
Java HotSpot(TM) 64-Bit Server VM (build 1.6.0_03-b05, mixed mode)