RFR: 8377035: [s390x] Disable JSR166 test cases which uses virtual threads [v4]

[duke]

On Fri, 13 Feb 2026 05:23:18 GMT, Harshit470250 <duke at openjdk.org> wrote:

>> ReentrantReadWriteLock20Test.java is failing on s390 due to virtual threads which are not yet implemented on s390. 
>> SynchronousQueue20Test.java also uses virtual thread so I am also disabling it.
>
> Harshit470250 has updated the pull request incrementally with one additional commit since the last revision:
> 
>   change java20TestClassNames only if on s390

@Harshit470250 
Your change (at version 6bc23d468b497cb035f8ffb3e583c5e2280ce33b) is now ready to be sponsored by a Committer.

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PR Comment: https://git.openjdk.org/jdk/pull/29555#issuecomment-3895529373