JDK : JDK1.5.0 b22 SWAT
Platform[s] : Solaris sparc 10, 9 gnome/cde
switch/Mode : -client -Xmixed

How to reproduce:
=================
1. launch SwingSet2 demo by running bin/java -jar demo/jfc/SwingSet2/*jar
2. In InternalFromesDemo. Change to "GTK Style Look & Feel"
3. Maximize any Frame. Then, minize the frame. The following NPE is shown:
java.lang.NullPointerException
at com.sun.java.swing.plaf.gtk.Metacity.getInt(Metacity.java:778)
at com.sun.java.swing.plaf.gtk.Metacity.setFrameGeometry(Metacity.java:772)
at com.sun.java.swing.plaf.gtk.Metacity.paintFrameBorder(Metacity.java:363)
at com.sun.java.swing.plaf.gtk.GTKPainter.paintDesktopIconBorder(GTKPainter.java:257)
at javax.swing.plaf.synth.SynthDesktopIconUI.paintBorder(SynthDesktopIconUI.java:111)
at javax.swing.plaf.synth.SynthBorder.paintBorder(SynthBorder.java:45)
at javax.swing.JComponent.paintBorder(JComponent.java:865)
at javax.swing.JComponent.paint(JComponent.java:968)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JLayeredPane.paint(JLayeredPane.java:560)
at javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4761)
at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4714)
at javax.swing.JComponent._paintImmediately(JComponent.java:4657)
at javax.swing.JComponent.paintImmediately(JComponent.java:4464)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:410)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:117)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:201)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:214)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)

4. Then, click on close. The following Exception show:
java.lang.NullPointerException
at com.sun.java.swing.plaf.gtk.Metacity.getInt(Metacity.java:778)
at com.sun.java.swing.plaf.gtk.Metacity.calculateButtonSize(Metacity.java:966)
at com.sun.java.swing.plaf.gtk.Metacity.calculateTitleArea(Metacity.java:991)
at com.sun.java.swing.plaf.gtk.Metacity.paintFrameBorder(Metacity.java:330)
at com.sun.java.swing.plaf.gtk.GTKPainter.paintInternalFrameBorder(GTKPainter.java:247)
at javax.swing.plaf.synth.SynthInternalFrameUI.paintBorder(SynthInternalFrameUI.java:137)
at javax.swing.plaf.synth.SynthBorder.paintBorder(SynthBorder.java:45)
at javax.swing.JComponent.paintBorder(JComponent.java:865)
at javax.swing.JComponent.paint(JComponent.java:968)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JLayeredPane.paint(JLayeredPane.java:560)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JLayeredPane.paint(JLayeredPane.java:560)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JComponent.paintWithOffscreenBuffer(JComponent.java:4761)
at javax.swing.JComponent.paintDoubleBuffered(JComponent.java:4714)
at javax.swing.JComponent._paintImmediately(JComponent.java:4657)
at javax.swing.JComponent.paintImmediately(JComponent.java:4464)
at javax.swing.RepaintManager.paintDirtyRegions(RepaintManager.java:410)
at javax.swing.SystemEventQueueUtilities$ComponentWorkRequest.run(SystemEventQueueUtilities.java:117)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:201)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:214)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
java.lang.NullPointerException
at com.sun.java.swing.plaf.gtk.Metacity.getInt(Metacity.java:778)
at com.sun.java.swing.plaf.gtk.Metacity.calculateButtonSize(Metacity.java:966)
at com.sun.java.swing.plaf.gtk.Metacity.calculateTitleArea(Metacity.java:991)
at com.sun.java.swing.plaf.gtk.Metacity.paintFrameBorder(Metacity.java:330)
at com.sun.java.swing.plaf.gtk.GTKPainter.paintInternalFrameBorder(GTKPainter.java:247)
at javax.swing.plaf.synth.SynthInternalFrameUI.paintBorder(SynthInternalFrameUI.java:137)
at javax.swing.plaf.synth.SynthBorder.paintBorder(SynthBorder.java:45)
at javax.swing.JComponent.paintBorder(JComponent.java:865)
at javax.swing.JComponent.paint(JComponent.java:968)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JLayeredPane.paint(JLayeredPane.java:560)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JComponent.paintChildren(JComponent.java:804)
at javax.swing.JComponent.paint(JComponent.java:976)
at javax.swing.JComponent.paintChildren(JComponent.java:804)


After these NPE, swithing to other demo is fine. However, InternalFromesDemo becomes unavailable even in other Look and Feel.


Tested machines:
=================
1. hiltonlv# cat /etc/release
                             Solaris 10 s10_40 SPARC
           Copyright 2003 Sun Microsystems, Inc. All Rights Reserved.
                        Use is subject to license terms.
                            Assembled 11 August 2003

2. parislv % cat /etc/release
                        Solaris 9 8/03 s9s_u4wos_08a SPARC
           Copyright 2003 Sun Microsystems, Inc. All Rights Reserved.
                        Use is subject to license terms.
                             Assembled 13 June 2003

###@###.### 2003-10-01