Java JVM 6 Swing Crashes

[Juergen Beckmerhagen]

Binary package hint: sun-java6-jre

Java Swing application crashes in Hardy Alpha 4

java version "1.6.0_04"
Java(TM) SE Runtime Environment (build 1.6.0_04-b12)
Java HotSpot(TM) Server VM (build 10.0-b19, mixed mode)

Linux 2.6.24-8-generic #1 SMP Thu Feb 14 20:40:45 UTC 2008 i686 GNU/Linux

Graphic Card ATi Mobility Radeon X1600
fglrx driver

JVM output:

Locking assertion failure. Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb7d10767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb7d108b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0x905b729d]
#3 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so [0x906b38ce]
#4 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so [0x90690067]
#5 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so [0x90690318]
#6 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x2f) [0x9069061f]
#7 [0xb4ca03aa]
#8 [0xb4c98f0d]
#9 [0xb4c98f0d]
#10 [0xb4c96249]
#11 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/server/libjvm.so [0x637338d]
#12 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/server/libjvm.so [0x64fd168]
#13 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/server/libjvm.so [0x6373220]
#14 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/server/libjvm.so(JVM_DoPrivileged+0x363) [0x63c90d3]
#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) [0xb7cb196d]
#16 [0xb4ca03aa]
#17 [0xb4c98da7]
#18 [0xb4c96249]
#19 /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/server/libjvm.so [0x637338d]
java: xcb_xlib.c:82: xcb_xlib_unlock: Assertion `c->xlib.lock' failed.

[FriedChicken (domlyons)]

Same problemwhen I'm trying to run JavaKara from http://www.swisseduc.ch/informatik/karatojava/javakara/classes/javakara.jar

[FriedChicken (domlyons)]

Confirmed (Kubuntu 8.04 with all recent updates)

[Juergen Beckmerhagen (juergen-beckmerhagen)]

Thanks to a Gentoo forum entry today I found a "workaround". Please read http://gentoo-wiki.com/Compiz_fusion#XCB_workaround

I wanted to run my Swing base app on this Hardy machine. Therefore I first saved a copy of "libmawt.so" to "libmawt.so.sicher" (I am German) and then I applied a (dirty) patch to "libmawt.so". Here are the command lines entered as root from the root-directory:

cp ./usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so ./usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so.sicher
echo ./usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so | xargs sed -i 's/XINERAMA/FAKEEXTN/g'

Same works for Java 5.

[FriedChicken (domlyons)]

I thinks it's a general problem, for example Java Web Start doesn't work.

It would be better to use
   $ cp /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so.saved
   $ echo /usr/lib/jvm/java-6-sun-1.6.0.04/jre/lib/i386/xawt/libmawt.so | sudo xargs sed -i 's/XINERAMA/FAKEEXTN/g'
because you don't have to be root and it's executable from evrywhere, not only in "/".

Thank you, this worked at my system, too.

I think we can change status to "Fix commited" because the guys packing java should know now what they have to change.

[FriedChicken (domlyons)]

There's a dirty fix, but the packages should be edited.

[anagor (anagor)]

I can confirm that the bug also affects amd64 hardy and the fix commited here works for amd64 also, all needed is to change the /i386/ directory to /amd64/ .