RFR: 8218474: JComboBox display issue with GTKLookAndFeel

[Tejesh R]

On Mon, 12 Dec 2022 10:28:50 GMT, Abhishek Kumar <abhiscxk at openjdk.org> wrote:

> > _TestComboBoxComponentRendering.java_ test failed (Synth L&F) in Ubuntu_21 VM machine. .jtr file and Failure case screen captured shared.
> 
> Run the test in Ubuntu 20,21 and 22 in CI pipeline, test passed for all platform.

The issue was that I was running in wayland, not xorg. The fix is tested and works fine

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PR: https://git.openjdk.org/jdk/pull/11555