RFR: 8352251: Implement JEP 518: JFR Cooperative Sampling [v20]

Wed May 14 00:09:40 UTC 2025

On Tue, 13 May 2025 20:39:05 GMT, Erik Österlund <eosterlund at openjdk.org> wrote:

>> Excellent observation, Erik. It remains a risky construct because it still assumes that interpreter frames are laid out only according to the sanctioned schema, a fact we know is not invariant. I have managed to delay reading the Method* until we reach a safe point, and can guarantee that any Method* we attempt to pick up is valid.
>> 
>> Running tests. Stay tuned.
>
> Sounds promising!

Please take a look at https://github.com/openjdk/jdk/pull/24296/commits/f14e1c288e6f54601f5e3ebaff9d82ec433a7ebd

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PR Review Comment: https://git.openjdk.org/jdk/pull/24296#discussion_r2087790333