To reproduce:
-Bring up SwingSet2
-resize the frame-creation JInternalFrame (the one with no decorations)
-change the look and feel to the Motif Look & Feel
-further attempts to resize the frame-creation frame result in the following (even if the L&F is changed back to Metal):
Exception occurred during event dispatching:
java.lang.NullPointerException
        at javax.swing.plaf.basic.BasicInternalFrameUI$BorderListener.mouseDragged(BasicInternalFrameUI.java:881)
        at java.awt.Component.processMouseMotionEvent(Component.java:3759)
        at javax.swing.JComponent.processMouseMotionEvent(JComponent.java:2299)
        at java.awt.Component.processEvent(Component.java:3548)
        at java.awt.Container.processEvent(Container.java:1164)
        at java.awt.Component.dispatchEventImpl(Component.java:2593)
        at java.awt.Container.dispatchEventImpl(Container.java:1213)
        at java.awt.Component.dispatchEvent(Component.java:2497)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:2451)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:2205)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:2125)
        at java.awt.Container.dispatchEventImpl(Container.java:1200)
        at java.awt.Window.dispatchEventImpl(Window.java:912)
        at java.awt.Component.dispatchEvent(Component.java:2497)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:333)
        at java.awt.EventDispatchThread.pumpOneEvent(EventDispatchThread.java:103)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:84)

I have reproduced this on Win2k and Sol/sparc 8 using ladybird, and not with kestrel.

brent.christian@eng 2000-10-26