I have a frame that has a button. I am pushing the frame into FS mode and making the button show the list of all supported display modes, one by one. When I click on the button, the display mode changes to what is shown on the button.

When I do this, the frame decorations are painted over when the frame enters FS mode and the button on the bottom of the frame appears slightly above the position where it is supposed to appear (SOUTH in border layout). This is a regression in 6uN - b06 PIT build. Not reproducible on previous releases and jdk7. I reproduced it on WinXP - Nvidia GeForce 7600 GS.

To reproduce the bug, run the attached test. Keep clicking the button and check the frame decorations and the button location.