RFR: 8376264: Mixed jstack could not unwind optimized frame [v2]

[Yasumasa Suenaga]

On Mon, 26 Jan 2026 21:00:41 GMT, Chris Plummer <cjplummer at openjdk.org> wrote:

>> It looks like the only reason we don't currently see this failure in our CI is because the test is being skipped due to [JDK-8375477](https://bugs.openjdk.org/browse/JDK-8375477). I have a PR out to fix this, but it looks like it is best not to push it until this PR is first pushed.
>
>> It looks like the only reason we don't currently see this failure in our CI is because the test is being skipped due to [JDK-8375477](https://bugs.openjdk.org/browse/JDK-8375477). I have a PR out to fix this, but it looks like it is best not to push it until this PR is first pushed.
> 
> Actually I see now it does still pass even when not skipped, but the output does contain the exception.

@plummercj 
Thanks a lot for your review, but I updated TestJhsdbJstackMixedCore.java to skip on Alpine due to same reason which is reported on [JDK-8376284](https://bugs.openjdk.org/browse/JDK-8376284).
I'm happy if you can review again.

I fixed merge confliction, but effective change is TestJhsdbJstackMixedCore.java only since your approval.

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PR Comment: https://git.openjdk.org/jdk/pull/29398#issuecomment-3854313936