[jdk22u] RFR: 8331142: Add test for number of loader threads in BasicDirectoryModel [v2]

[Alexey Ivanov]

On Wed, 1 May 2024 17:01:16 GMT, Alexey Ivanov <aivanov at openjdk.org> wrote:

>> Provides a regression test for [JDK-8325179](https://bugs.openjdk.org/browse/JDK-8325179): _Race in BasicDirectoryModel.validateFileCache_ which is backported to 22u.
>
> Alexey Ivanov has updated the pull request incrementally with one additional commit since the last revision:
> 
>   8331495: Limit BasicDirectoryModel/LoaderThreadCount.java to Windows only
>   
>   Reviewed-by: prr

The test proved to be unstable on Windows too, the test is modified by [JDK-8331999](https://bugs.openjdk.org/browse/JDK-8331999).

It is _safer_ not to integrate this PR to avoid bringing new test failures.

If deemed necessary, the PR could updated with JDK-8331999.

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PR Comment: https://git.openjdk.org/jdk22u/pull/175#issuecomment-2118209027