[jdk21] RFR: 8311556: GetThreadLocalStorage not working for vthreads mounted during JVMTI attach

[Alex Menkov]

On Thu, 13 Jul 2023 03:41:28 GMT, Serguei Spitsyn <sspitsyn at openjdk.org> wrote:

> Clean backport from mainline jdk repo to jdk21 for the fix of:
> [8311556](https://bugs.openjdk.org/browse/JDK-8311556): GetThreadLocalStorage not working for vthreads mounted during JVMTI attach
> 
> Testing:
>  - TBD: mach5 tiers 1-5

Marked as reviewed by amenkov (Reviewer).

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PR Review: https://git.openjdk.org/jdk21/pull/117#pullrequestreview-1535835390