RFR: 8365184: sun/tools/jhsdb/HeapDumpTestWithActiveProcess.java Re-enable SerialGC flag on debuggee process

[Chris Plummer]

On Sat, 9 Aug 2025 03:27:26 GMT, Ramkumar Sunderbabu <rsunderbabu at openjdk.org> wrote:

> VM argument UseSerialGC was not allowed while launching the debuggee process due to classloader related issue (JDK-8313655). During the effort to improve the test's handling of the issue, it was observed that SerialGC doesn't cause any issue any more. This could possibly due to improved handling of ClassLoaderData or SerialGC.
> After extensively testing the argument in various platforms and for many iterations, it was decided to allow the argument here on.
> 
> Testing: Tiers1,2,3 and other ties where the test runs.

Looks good. BTW, you could have still used the old PR and just changed the title to reflect the new CR.

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Marked as reviewed by cjplummer (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/26711#pullrequestreview-3103206850