On Mon, 17 Aug 2026 21:44:10 GMT, Chris Plummer <[email protected]> wrote:
> Allow OpaqueFrameException for vthreads when suspended in a loop (not at an > event). This became necessary after > [JDK-8386116](https://bugs.openjdk.org/browse/JDK-8386116). The > ThreadReference.stop() spec allows for this: > > `This method may be used to send an asynchronous exception to a virtual > thread when it is suspended at an event. An implementation may support > sending an asynchronous exception to a suspended virtual thread in other > cases.` > > and > > `OpaqueFrameException - if the thread is a suspended virtual thread and the > implementation was unable to throw an asynchronous exception from the > thread's current frame` > > I also field [JDK-8390483](https://bugs.openjdk.org/browse/JDK-8390483) to > investigate if JVMTI should remove all vthread support for StopThread when > not at an event rather than having work just some of the time. > > The failure used to happen about 1 out of 50 runs. Tested with both platform > threads and with virtual threads about 200 times each with no issues. > > --------- > - [x] I confirm that I make this contribution in accordance with the [OpenJDK > Interim AI Policy](https://openjdk.org/legal/ai). This pull request has now been integrated. Changeset: b0317e58 Author: Chris Plummer <[email protected]> URL: https://git.openjdk.org/jdk/commit/b0317e589eb7584f101ca5147267c54837872120 Stats: 43 lines in 2 files changed: 32 ins; 2 del; 9 mod 8389487: Test vmTestbase/nsk/jdi/ThreadReference/stop/stop002/TestDescription.java failed: unexpected com.sun.jdi.OpaqueFrameException Reviewed-by: sspitsyn, pchilanomate ------------- PR: https://git.openjdk.org/jdk/pull/32403
