Using JavaTest 2.0, which is based solely upon the vanilla JDK 1.1.4 API
(no Swing, anything like this) It is very easy to provoke an execption in
the event handling code. Simply popup a file dialog and dismiss it
to get an execption like the following:

Exception occurred during event dispatching:
java.lang.NullPointerException
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:1544)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:1448)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:1383)
        at java.awt.Container.dispatchEventImpl(Container.java:922)
        at java.awt.Component.dispatchEvent(Component.java:1704)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:63)