RFR: 8286446: PPC64: fix crashes after JDK-8284161 (virtual threads preview) [v2]

Tue May 10 15:25:50 UTC 2022

On Tue, 10 May 2022 12:45:27 GMT, Richard Reingruber <rrich at openjdk.org> wrote:

>> With this change `java -version` succeeds with the devkit build also the standard build on a ppc64le box does not crash anymore.
>> 
>> Also tier1 tests don't look too bad.
>
> Richard Reingruber has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Martin's feedback

This needs rebasing after #8631, otherwise the PPC64 build would break.

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PR: https://git.openjdk.java.net/jdk/pull/8617