RFR: 8318605: Enable parallelism in vmTestbase/nsk/stress/stack tests

[Guoxiong Li]

On Wed, 28 Feb 2024 01:41:38 GMT, Elif Aslan <duke at openjdk.org> wrote:

> The commit includes changes to unblock parallelism vmTestbase/nsk/stress/stack tests.
> GHA tested.
> Command below succeeded 
> `make test TEST=vmTestbase/nsk/stress/stack JTREG=REPEAT_COUNT=100`

LGTM.

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Marked as reviewed by gli (Committer).

PR Review: https://git.openjdk.org/jdk/pull/18037#pullrequestreview-1905254792