JDK-6862560 : Frame is becoming undecorated when setting its background to alpha value less then 255
  • Type: Bug
  • Component: client-libs
  • Sub-Component: java.awt
  • Affected Version: 7
  • Priority: P2
  • Status: Closed
  • Resolution: Not an Issue
  • OS: windows,windows_vista
  • CPU: x86
  • Submitted: 2009-07-21
  • Updated: 2011-01-19
  • Resolved: 2010-11-25
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Description
Frame is becoming undecorated when I am setting setBackground() method with a color having aplha value less then 255. I am not making the frame as undecorated in the code.
This I reproduced on Windows XP with Jkd7b66 pit build.
I could also reproduce this on 7b61 build.

Steps to reproduce:
1. Run the attached testcase (TestOpacity.java)
java TestOpacity
2. If you can see the frame is undecorated the bug is reproduced.