The new applet warning icon should be place with two pixel gap between the Top level ( frame , dialog) . This works fine for frame , but fails for JDialog & JOptionPane in vista theme. I have attached the screen shot of the same.

Step to reproduce:-
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1) Run swingset2.
2) Select JOptionPane demo.
3) Click on "show confirmation button". Observe that applet warning icon is touching the border of the JOptionPane. If you see the same then the bug is reproduced.