RFR: 8183348: Better cleanup for jdk/test/sun/security/pkcs12/P12SecretKey.java [v3]

[duke]

On Thu, 1 May 2025 18:08:40 GMT, Mikhail Yankelevich <myankelevich at openjdk.org> wrote:

>> * Changed the test to use scratch directory
>> * Cleaned up the imports
>
> Mikhail Yankelevich has updated the pull request incrementally with one additional commit since the last revision:
> 
>   changed file format and throwing an exception in case of the failure

@myankelev 
Your change (at version 64d0bd8f93e287374c2bbd089765e660f6cb8fc8) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk/pull/24718#issuecomment-2845397144