[jdk21u-dev] RFR: 8353953: com/sun/jdi tests should be fixed to not always require includevirtualthreads=y

[Rui Li]

On Thu, 16 Oct 2025 06:02:12 GMT, Rui Li <duke at openjdk.org> wrote:

> A clean backport for JDK-8353953.
> 
> Backport for parity with oracle. `includevirtualthreads=y` is currently the default, but it's not desirable since it eliminates `includevirtualthreads=n testing coverage` and negates JDK-8282441. Remove the default and only provide `includevirtualthreads=y` to required tests. Tests are running. Low risk - test changes.

One GHA failed: tools/javac/patterns/SOEDeeplyNestedBlocksTest.java. Possibly related: JDK-8332619. Rerunning when other GHA finish.

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PR Comment: https://git.openjdk.org/jdk21u-dev/pull/2335#issuecomment-3411870964