RFR: 8315600: Open source few more headless Swing misc tests [v5]

[Alexey Ivanov]

On Wed, 6 Sep 2023 15:41:47 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> Few more closed swing headless tests are opensourced
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Indent

Marked as reviewed by aivanov (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/15582#pullrequestreview-1613678486