hello
I have this problem with the openjdk plugin (icedtea-web).
it seems that when the solution is to use one of the sun.
you have any ideas?

here I found other reports to the (similar) problem
https://bugs.launchpad.net/ubuntu/+source/openjdk-6/+bug/440841
http://icedtea.classpath.org/bugzilla/show_bug.cgi?id=461

thanks

$ firefox
java version "1.6.0_22"
OpenJDK Runtime Environment (IcedTea6 1.10) (mageia-14.b22.5.mga1-i386)
OpenJDK Server VM (build 20.0-b10, mixed mode)
OFS Webchat Applet Running bld 2096 - (C) Icona spa http://www.icona.it
Java version 1.6.0_22
Trying connecting to 195.210.93.109:4800
**OFSCmdLogon :: encodeItems() :: getCli() = NULL !!
Exception in thread "AWT-EventQueue-2" java.lang.NullPointerException
        at javax.swing.text.PlainView.updateMetrics(PlainView.java:205)
        at javax.swing.text.PlainView.getPreferredSpan(PlainView.java:228)
        at javax.swing.text.FieldView.getPreferredSpan(FieldView.java:235)
        at javax.swing.text.PasswordView.getPreferredSpan(PasswordView.java:232)
        at javax.swing.text.FieldView.adjustAllocation(FieldView.java:82)
        at javax.swing.text.FieldView.adjustPaintRegion(FieldView.java:195)
        at javax.swing.text.PlainView.paint(PlainView.java:251)
        at javax.swing.text.FieldView.paint(FieldView.java:188)
        at javax.swing.plaf.basic.BasicTextUI$RootView.paint(BasicTextUI.java:1439)
        at javax.swing.plaf.basic.BasicTextUI.paintSafely(BasicTextUI.java:739)
        at javax.swing.plaf.basic.BasicTextUI.paint(BasicTextUI.java:886)
        at javax.swing.plaf.basic.BasicTextUI.update(BasicTextUI.java:865)
        at javax.swing.JComponent.paintComponent(JComponent.java:765)
        at javax.swing.JComponent.paint(JComponent.java:1029)
        at javax.swing.JComponent.paintToOffscreen(JComponent.java:5138)
        at javax.swing.RepaintManager$PaintManager.paintDoubleBuffered(RepaintManager.java:1454)
        at javax.swing.RepaintManager$PaintManager.paint(RepaintManager.java:1385)
        at javax.swing.BufferStrategyPaintManager.paint(BufferStrategyPaintManager.java:318)
        at javax.swing.RepaintManager.paint(RepaintManager.java:1188)
        at javax.swing.JComponent._paintImmediately(JComponent.java:5086)
        at javax.swing.JComponent.paintImmediately(JComponent.java:4896)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:783)
        at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:735)
        at javax.swing.RepaintManager.prePaintDirtyRegions(RepaintManager.java:677)
        at javax.swing.RepaintManager.access$700(RepaintManager.java:58)
        at javax.swing.RepaintManager$ProcessingRunnable.run(RepaintManager.java:1593)
        at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:226)
        at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:647)
        at java.awt.EventQueue.access$000(EventQueue.java:96)
        at java.awt.EventQueue$1.run(EventQueue.java:608)
        at java.awt.EventQueue$1.run(EventQueue.java:606)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.security.AccessControlContext$1.doIntersectionPrivilege(AccessControlContext.java:105)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:617)
        at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:275)
        at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:200)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:190)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:185)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:177)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:138)
Handle:
java.lang.NullPointerException
        at a.a.d.c.g(Unknown Source)
        at a.a.d.l.a(Unknown Source)
        at a.a.d.l.a(Unknown Source)
        at a.a.a.c.a.y.c(Unknown Source)
        at a.a.a.c.a.u.run(Unknown Source)
        at java.lang.Thread.run(Thread.java:679)
error: line 5: bad flagvector
error: line 7: bad flagvector
error: line 9: bad flagvector
error: line 11: bad flagvector
error: line 13: bad flagvector
error: line 18: bad flagvector
error: line 23: bad flagvector
error: line 28: bad flagvector
Error: Unable to fetch applet instance id from Java side.
Error: Unable to fetch applet instance id from Java side.
Closing the socket ...
WebChatApplet: stop
Exception in thread "Thread-15" java.lang.NullPointerException
        at a.a.d.c.n(Unknown Source)
        at a.a.d.u.run(Unknown Source)
        at java.lang.Thread.run(Thread.java:679)
Error: Unable to fetch applet instance id from Java side.
WARNING: pipe error (3): Demolished by the corresponding connection: file ./src/chrome/common/ipc_channel_posix.cc, line 404
Segmentation fault