Kaffe HPUX setup problem

[Neumann, Matthew C]

Hi, all!
I'm new to the Java world, just started a class this winter.  Apologies if
this is not the right list to be asking about this.

I've had some problems getting kaffe running on my HPUX box at work.
Console-based programs run fine, a la HelloWorld, but when I try something
in swing like (it's line 30 of my program, as1, BTW):

       courseName = JOptionPane.showInputDialog("Please enter Course Name");

it crashes hideously, with this output:

ewsh08:.m/kaffe> bin/java -addclasspath $PWD as1

java.lang.IllegalMonitorStateException
        at javax.swing.UIDefaults.get(UIDefaults.java:146)
        at javax.swing.MultiUIDefaults.get(MultiUIDefaults.java:50)
        at javax.swing.UIDefaults.getIcon(UIDefaults.java:234)
        at javax.swing.UIManager.getIcon(UIManager.java:478)
        at
javax.swing.plaf.basic.BasicOptionPaneUI.getIconForType(BasicOptionPaneUI.ja
va:474)
        at
javax.swing.plaf.basic.BasicOptionPaneUI.getIcon(BasicOptionPaneUI.java:456)
        at
javax.swing.plaf.basic.BasicOptionPaneUI.addIcon(BasicOptionPaneUI.java:437)
        at
javax.swing.plaf.basic.BasicOptionPaneUI.createMessageArea(BasicOptionPaneUI
.java:274)
        at
javax.swing.plaf.basic.BasicOptionPaneUI.installComponents(BasicOptionPaneUI
.java:127)
        at
javax.swing.plaf.basic.BasicOptionPaneUI.installUI(BasicOptionPaneUI.java:95
)
        at javax.swing.JComponent.setUI(JComponent.java:258)
        at javax.swing.JOptionPane.setUI(JOptionPane.java:1296)
        at javax.swing.JOptionPane.updateUI(JOptionPane.java:1318)
        at javax.swing.JOptionPane.<init>(JOptionPane.java:1281)
        at javax.swing.JOptionPane.showInputDialog(JOptionPane.java:427)
        at javax.swing.JOptionPane.showInputDialog(JOptionPane.java:396)
        at javax.swing.JOptionPane.showInputDialog(JOptionPane.java:379)
        at javax.swing.JOptionPane.showInputDialog(JOptionPane.java:367)
        at as1.main(as1.java:30)
Dumping live threads:
`AWT-EventQueue-0' tid 4037d010, status SUSPENDED flags 
 blocked at 40362910 (4037d010->|) 
`gc' tid 4015a010, status SUSPENDED flags 
 blocked at 40130da0 (4015a010->|) 
`finaliser' tid 40151010, status SUSPENDED flags 
 blocked at 40130d80 (40151010->|) 
Deadlock: all threads blocked on internal events
Abort(coredump)

I'm afraid I can't read the sun docs well enough to figure out what
UIDefaults.get is trying to do.  

Anyone out there have any advice?

--- Matt ---