RFR: 8340458: Open source additional Component tests (part 2) [v2]

[Prasanta Sadhukhan]

On Mon, 30 Sep 2024 22:32:19 GMT, Alexander Zuev <kizune at openjdk.org> wrote:

>> Clean up and open source four more tests.
>
> Alexander Zuev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Moved variables initialization into the method that is called on EDT;
>   Moved dispose call onto EDT so it is called even if test is failed;
>   Added missing window dispose call;

Marked as reviewed by psadhukhan (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/21235#pullrequestreview-2339017790