RFR: 8328238: Convert few closed manual applet tests to main [v4]

[Alexey Ivanov]

On Wed, 20 Mar 2024 16:46:45 GMT, Prasanta Sadhukhan <psadhukhan at openjdk.org> wrote:

>> Few closed manual applet tests are converted to main based and opensourced
>
> Prasanta Sadhukhan has updated the pull request incrementally with one additional commit since the last revision:
> 
>   REview update

Marked as reviewed by aivanov (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/18390#pullrequestreview-1949549703