RFR: 8296083: javax/swing/JTree/6263446/bug6263446.java fails intermittently on a VM

[Sergey Bylokhov]

On Fri, 11 Nov 2022 04:01:17 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> Please recheck, setLocationRelativeTo() calculates the location based on the size of the current frame, which is wrong before the pack. I just run it and the frame is sifted to the right part of the screen.
>
> WHich platform it is shifted?

I guess on any, I have tested on windows, and now on macOS. Add these lines to the end of method, and check how the frame will jump to the center:

        frame.setLocationRelativeTo(null);
        frame.pack();
        frame.setVisible(true);
      + robot.delay(3000);
      + frame.dispose();
      + frame.pack();
      + frame.setLocationRelativeTo(null);
      + frame.setVisible(true);

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PR: https://git.openjdk.org/jdk/pull/11057