[jdk21u-dev] RFR: 8342074: Fix runtime/Thread/TestAlwaysPreTouchStacks.java to be flagless or accept VM flags [v2]

[Goetz Lindenmaier]

> I backport this for parity with 21.0.9-oracle
> 
> Resolved due to context, maybe clean.

Goetz Lindenmaier has refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

  backport 9291abc6337f8cf480806f4b2996ec905b021704

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Changes:
  - all: https://git.openjdk.org/jdk21u-dev/pull/2088/files
  - new: https://git.openjdk.org/jdk21u-dev/pull/2088/files/2ba62569..a46b1d5a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2088&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2088&range=00-01

  Stats: 7 lines in 2 files changed: 0 ins; 2 del; 5 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2088.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2088/head:pull/2088

PR: https://git.openjdk.org/jdk21u-dev/pull/2088