Integrated: 8315364: Assert thread state invariant for JFR stack trace capture

[Markus Grönlund]

On Wed, 30 Aug 2023 12:38:46 GMT, Markus Grönlund <mgronlun at openjdk.org> wrote:

> Greetings,
> 
> A JavaThread running in state _thread_in_native cannot capture a JFR stack trace because tagging of artefacts (klasses, methods, etc.) is a function of an epoch, which evolves during safepoints.
> 
> Asserting this invariant would have helped prevent the issue detailed in [JDK-8315220](https://bugs.openjdk.org/browse/JDK-8315220).
> 
> Testing: jdk_jfr
> 
> Thanks
> Markus

This pull request has now been integrated.

Changeset: ffaecd4a
Author:    Markus Grönlund <mgronlun at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/ffaecd4aa23ca15e765784858da82b632c72dfc2
Stats:     18 lines in 2 files changed: 10 ins; 8 del; 0 mod

8315364: Assert thread state invariant for JFR stack trace capture

Reviewed-by: egahlin

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PR: https://git.openjdk.org/jdk/pull/15491