RFR: 7903671: jcstress: Update buffer tests for JDK-8318966

[Jiří Vaněk]

On Wed, 26 Feb 2025 19:27:27 GMT, Jiří Vaněk <jvanek at openjdk.org> wrote:

> This is another possible fix for  https://bugs.openjdk.org/browse/CODETOOLS-7903671 - : jcstress: Update buffer tests for JDK-8318966 (Bug - P4)
> This one is attempting  Experimental reduction of (0, 8) -> (0, 1) in all affected calls. Brief experiments seesm the change works. But whether it is still testing what it should.. I try to decrypt it, but up to now now proof.
> 
> I have not yet tested all affected tests. That is in progress.

Ah... not fulfilling its promises....
With jdk21 it was passing ok. But on 23  it got occasionally

    Check test failed
    java.lang.IllegalStateException: Atomic access not supported for heap buffer

But about half passed. I guess Ihad picked up wrong subset for initial testing

Reopening for a while... maye somebody around will know why.

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PR Comment: https://git.openjdk.org/jcstress/pull/160#issuecomment-2685998642
PR Comment: https://git.openjdk.org/jcstress/pull/160#issuecomment-2686003475