SwingSet throws exception when restarted on Solaris 2.6 with JDK1.1.5, Swing-pre-1.0 January 29th build.

Steps to reproduce:
1) Launch swingset
2) Select restart from Applet menu
Result:
The following exception occurs:

Exception occurred during event dispatching:
java.awt.IllegalComponentStateException: component must be showing on the screen
 to determine its location
        at java.awt.Component.getLocationOnScreen(Component.java:731)
        at com.sun.java.swing.SwingUtilities.convertPointToScreen(SwingUtilities
.java:221)
        at com.sun.java.swing.MenuSelectionManager.processMouseEvent(MenuSelecti
onManager.java:120)
        at com.sun.java.swing.basic.BasicMenuUI$MouseListener.mouseExited(BasicM
enuUI.java:347)
        at java.awt.Component.processMouseEvent(Component.java:2290)
        at java.awt.Component.processEvent(Component.java:2129)
        at java.awt.Container.processEvent(Container.java:894)
        at java.awt.Component.dispatchEventImpl(Component.java:1764)
        at java.awt.Container.dispatchEventImpl(Container.java:939)
        at java.awt.Component.dispatchEvent(Component.java:1704)
        at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:1548
)
        at java.awt.LightweightDispatcher.setMouseTarget(Container.java:1509)
        at java.awt.LightweightDispatcher.processMouseEvent(Container.java:1473)
        at java.awt.LightweightDispatcher.dispatchEvent(Container.java:1392)
        at java.awt.Container.dispatchEventImpl(Container.java:926)
        at java.awt.Component.dispatchEvent(Component.java:1704)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:63)
sun.applet.AppletSecurityException: checkawteventqueueaccess
        at sun.applet.AppletSecurity.checkAwtEventQueueAccess(AppletSecurity.jav
a:716)
        at java.awt.Toolkit.getSystemEventQueue(Toolkit.java:655)
        at com.sun.java.swing.Timer.post(Timer.java:259)
        at com.sun.java.swing.TimerQueue.postExpiredTimers(TimerQueue.java:211)
        at com.sun.java.swing.TimerQueue.run(TimerQueue.java:240)
        at java.lang.Thread.run(Thread.java)