FULL PRODUCT VERSION :
java version "1.6.0_02"
Java(TM) SE Runtime Environment (build 1.6.0_02-b06)
Java HotSpot(TM) Client VM (build 1.6.0_02-b06, mixed mode, sharing)

ADDITIONAL OS VERSION INFORMATION :
Microsoft Windows [Version 6.0.6000]

A DESCRIPTION OF THE PROBLEM :
Moving JFrames with the mouse near "minimize,maximize,close"-buttons makes them flash, this does not happen on native programs.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1. Open any Java-program, using JFrames.
2. Move your mouse as close as possible to the "minimize,maximize,close"-buttons
3. Hold left mouse key down, while dragging the window around in circles.

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
On native programs, the mouse is "locked" when moving windows, preventing the "minimize,maximize,close"-buttons to flash, as if the mouse actually was over them.
ACTUAL -
If you drag the window fast, you will see that the "minimize,maximize,close"-buttons will flash, as if you held the mouse over them.
This does not happen on Windows native programs.

REPRODUCIBILITY :
This bug can be reproduced always.