Java problems affecting Matlab

[Alain Muls]

Hi

I had matlab running fine with Ubuntu FF 7.10. Since I changed to Ubuntu 
HH 8.04 LTS I get the follwing errors at startup:

Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb5b4c767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_unlock+0x31) [0xb5b4c8b1]
#2 /usr/lib/libX11.so.6(_XReply+0xfd) [0xb5eb81bd]
#3 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/xawt/libmawt.so 
[0xa064226a]
#4 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/xawt/libmawt.so 
[0xa0628352]
#5 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/xawt/libmawt.so 
[0xa0628599]
#6 
/data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x24) 
[0xa06287a4]
#7 [0xadb07b8b]
#8 [0xadb01a7b]
#9 [0xadb01a7b]
#10 [0xadaff157]
#11 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/client/libjvm.so 
[0xb27a68ec]
#12 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/client/libjvm.so 
[0xb2895378]
#13 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/client/libjvm.so 
[0xb27a671f]
#14 
/data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x2db) 
[0xb27feebb]
#15 
/data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) 
[0xb2d992cd]
#16 [0xadb0743b]
#17 [0xadb019a4]
#18 [0xadaff157]
#19 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/client/libjvm.so 
[0xb27a68ec]
Locking assertion failure.  Backtrace:
#0 /usr/lib/libxcb-xlib.so.0 [0xb5b4c767]
#1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x2e) [0xb5b4c81e]
#2 /usr/lib/libX11.so.6 [0xb5eb7518]
#3 /usr/lib/libX11.so.6(XGetVisualInfo+0x26) [0xb5eae0a6]
#4 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/xawt/libmawt.so 
[0xa0627227]
#5 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/xawt/libmawt.so 
[0xa06274b8]
#6 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/xawt/libmawt.so 
[0xa06286e0]
#7 
/data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/xawt/libmawt.so(Java_sun_awt_X11GraphicsEnvironment_initDisplay+0x24) 
[0xa06287a4]
#8 [0xadb07b8b]
#9 [0xadb01a7b]
#10 [0xadb01a7b]
#11 [0xadaff157]
#12 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/client/libjvm.so 
[0xb27a68ec]
#13 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/client/libjvm.so 
[0xb2895378]
#14 /data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/client/libjvm.so 
[0xb27a671f]
#15 
/data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/client/libjvm.so(JVM_DoPrivileged+0x2db) 
[0xb27feebb]
#16 
/data/matlab/sys/java/jre/glnx86/jre1.5.0/lib/i386/libjava.so(Java_java_security_AccessController_doPrivileged__Ljava_security_PrivilegedAction_2+0x3d) 
[0xb2d992cd]
#17 [0xadb0743b]
#18 [0xadb019a4]
#19 [0xadaff157]

Any suggestion?

Tx/Alain

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