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 ------------- Commit messages: - Backport 11a5115caf179a1bbed5311e12ed3851e026c5c5 Changes: https://git.openjdk.org/jdk21/pull/117/files Webrev: https://webrevs.openjdk.org/?repo=jdk21&pr=117&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8311556 Stats: 196 lines in 3 files changed: 181 ins; 13 del; 2 mod Patch: https://git.openjdk.org/jdk21/pull/117.diff Fetch: git fetch https://git.openjdk.org/jdk21.git pull/117/head:pull/117 PR: https://git.openjdk.org/jdk21/pull/117
