RFR: 8353226: JFR: emit old object samples must be transitive closure complete for segment [v2]

[Erik Gahlin]

On Sun, 30 Mar 2025 12:17:52 GMT, Markus Grönlund <mgronlun at openjdk.org> wrote:

>> Greetings,
>> 
>> EventEmitter::write_events() only serializes blobified stack traces as part of old object checkpoint serialization. Still, it categorically writes a stack trace id as part of the event, even for non-blobified stack traces. As a result, the segment is incomplete. Stack traces must be serialized directly from the leak profiler repository to ensure closure. 
>> 
>> Testing: jdk_jfr
>> 
>> Thanks
>> Markus
>
> Markus Grönlund has updated the pull request incrementally with one additional commit since the last revision:
> 
>   align

Marked as reviewed by egahlin (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/24316#pullrequestreview-2729349102