On Fri, 6 Dec 2024 22:28:29 GMT, Chris Plummer <cjplum...@openjdk.org> wrote:
> This test fails after > [JDK-8338713](https://bugs.openjdk.org/browse/JDK-8338713) when using > JTREG_TEST_THREAD_FACTORY=Virtual. The test uses JVMTI StopThread on a thread > expecting it to be mounted. Before > [JDK-8338713](https://bugs.openjdk.org/browse/JDK-8338713) it would be > mounted because it was blocked on a syncrhonized, which resulted in the > thread being pinned. After > [JDK-8338713](https://bugs.openjdk.org/browse/JDK-8338713) this is no longer > the case and the virtual thread has unmounted. This causes JVMTI StopThread > to fail with JVMTI_ERROR_OPAQUE_FRAME because it only supports mounted > virtual threads. > > Fixed by using the VThreadPinner class to make sure the virtual threads > remains pinned, and therefore mounted. > > Testing: > > - [x] Ran jdb tests locally in both virtual thread mode and platform thread > mode. > - [ ] tier1 > - [ ] tier2 svc > - [ ] tier5 svc The fix looks good modulo potential renaming of the `run1()` method. ------------- PR Review: https://git.openjdk.org/jdk/pull/22620#pullrequestreview-2490055623
