I can confirm this bug for hardy alpha 5
~~~ $ java -jar GoogleVideoUploader.jar
Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0x7f9c5192c97c] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x24) [0x7f9c5192ca84] #2 /usr/lib/libX11.so.6(_XReply+0x10f) [0x7f9c5218b14f] #3 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/amd64/xawt/libmawt.so [0x7f9c52690786] #4 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/amd64/xawt/libmawt.so [0x7f9c526714eb] #5 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/amd64/xawt/libmawt.so [0x7f9c526717bd] #6 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/amd64/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x12) [0x7f9c52671a32] #7 [0x7f9c77ae8878] java: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed. Aborted (core dumped)
I can confirm this bug for hardy alpha 5
~~~ ader.jar
$ java -jar GoogleVideoUplo
Locking assertion failure. Backtrace: libxcb- xlib.so. 0 [0x7f9c5192c97c] libxcb- xlib.so. 0(xcb_xlib_ unlock+ 0x24) [0x7f9c5192ca84] libX11. so.6(_XReply+ 0x10f) [0x7f9c5218b14f] jvm/java- 6-sun-1. 6.0.04/ jre/lib/ amd64/xawt/ libmawt. so [0x7f9c52690786] jvm/java- 6-sun-1. 6.0.04/ jre/lib/ amd64/xawt/ libmawt. so [0x7f9c526714eb] jvm/java- 6-sun-1. 6.0.04/ jre/lib/ amd64/xawt/ libmawt. so [0x7f9c526717bd] jvm/java- 6-sun-1. 6.0.04/ jre/lib/ amd64/xawt/ libmawt. so(Java_ sun_awt_ X11GraphicsEnvi ronment_ initDisplay+ 0x12) [0x7f9c52671a32]
#0 /usr/lib/
#1 /usr/lib/
#2 /usr/lib/
#3 /usr/lib/
#4 /usr/lib/
#5 /usr/lib/
#6 /usr/lib/
#7 [0x7f9c77ae8878]
java: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.
Aborted (core dumped)