RFR: 8329596: Add test for virtual threads invoking synchronized native methods

[Jaikiran Pai]

On Wed, 3 Apr 2024 10:52:10 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> This is a test-only addition to add a test for virtual threads invoking a synchronized native method and invoking a native method that enter/exits a monitor with JNI MonitorEnter/MonitorExit. The test has been in the loom repo for some time, it can move to the main line in advance of changes to the object monitor implementation.

The java side of this test looks OK to me.

I see that for testing concurrent/contended access we aren't doing nested monitor enters. Does it deserve to be tested?

-------------

Marked as reviewed by jpai (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/18600#pullrequestreview-2003899439