I have a frame , which is having a jpanel in the north & jpanel is having a button . In the center of the frame i have added a Jscrollpane which holds a textarea. I called panel.setOpaque(false) & set the frame to become translucent by calling com.sun.awt.AWTUtilities.setWindowOpaque(frame, false); , when i call this method i can see two button . I have attached screen shot of the same. When i comment the com.sun.awt.AWTUtilities.setWindowOpaque(frame, false); line , Every thing works as expected.
Step to reproduce:-
1) Run the attached testcase.
2) If you see two button to the north of the frame , then the bug is reproduced.
Or see screen shot. If the gui & screen is seen then the bug is reproduce.
I run this program on 6u10 b14 .