RFR: 8280482: Window transparency bug on Linux [v3]

[Tejesh R]

On Fri, 28 Jul 2023 11:04:33 GMT, Alexander Zvegintsev <azvegint at openjdk.org> wrote:

>> I have made the validation as per number of screens now. I guess this is fine to check multiple screens.
>
> I don't see why we should be limited to only two when more may be available.
> What if it helps to find some issue?
> Anyway, the test place windows on all screens, but checking only on two of them.

I have updated the test to available screens (Though not able to test since I can extend to two screens now), I guess it should work, it's generic now.

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/14825#discussion_r1277422068