RFR: 8357470: src/java.base/share/classes/sun/security/util/Debug.java implement the test for args.toLowerCase [v3]

[Mikhail Yankelevich]

On Tue, 24 Jun 2025 10:41:29 GMT, Mikhail Yankelevich <myankelevich at openjdk.org> wrote:

>> * added an automated mixed case option
>> * using multithreading now
>> * added logs for simpler debug
>> * added missing -Djava.security.auth.debug coverage
>
> Mikhail Yankelevich has updated the pull request incrementally with one additional commit since the last revision:
> 
>   comments & split test to 3

@koushikthirupattur @coffeys brought the cases to mixed case only in order to still test everything, but no going into the testing of the implementation of the `toLowerCase()`

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PR Comment: https://git.openjdk.org/jdk/pull/25391#issuecomment-3004884445