Some awt events may have time stamp equal to zero

Name: rpR10076 Date: 08/23/2001

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How to reproduce it:
If JDK is built with awtdebug.assert=true, you can see it on
test/java/awt/Focus/WindowTest (just as it starts):
sun.awt.DebugHelperImpl$AssertionFailure:
        at sun.awt.DebugHelperImpl.assertion(DebugHelperImpl.java:121)
        at sun.awt.DebugHelperImpl.assertion(DebugHelperImpl.java:116)
        at
java.awt.KeyboardFocusManager.shouldNativelyFocusHeavyweight(KeyboardFocusManager.java:1980)
        at sun.awt.motif.MComponentPeer.requestFocus(Native Method)
        at java.awt.Component.requestFocusHelper(Component.java:6003)
        at java.awt.Component.requestFocusInWindow(Component.java:5923)
        at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:279)
        at java.awt.Component.dispatchEventImpl(Component.java:3392)
        at java.awt.Container.dispatchEventImpl(Container.java:1440)
        at java.awt.Window.dispatchEventImpl(Window.java:1568)
        at java.awt.Component.dispatchEvent(Component.java:3363)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:448)
        at java.awt.SequencedEvent.dispatch(SequencedEvent.java:108)
        at java.awt.EventQueue.dispatchEvent(EventQueue.java:446)
        at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:193)
        at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:147)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:141)
        at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:133)
        at java.awt.EventDispatchThread.run(EventDispatchThread.java:101)

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