FULL PRODUCT VERSION :
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
Java HotSpot(TM) Client VM (build 1.5.0-b64, mixed mode, sharing)


ADDITIONAL OS VERSION INFORMATION :
Linux pmuellerslinux 2.4.18 #18 SMP Mon Feb 24 11:42:05 EST 2003 i686 unknown

A DESCRIPTION OF THE PROBLEM :
When a JScrollPane is partially off screen on Linux or Solaris (the Windows behavior is fine) there is noticable flashing during scrolling.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Run the SwingSet2 demo
Select the JScrollPane demo
Use the horizontal scroller and notice how smoothly the view is repainted.
Reposition the demo window so that it is partially off screen to the right.
Use the horizontal scroller again and notice the gray flashes

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
I expect the performance with the JScrollPane partially off screen to be comparable to that with it fully on screen.

REPRODUCIBILITY :
This bug can be reproduced always.
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