RFR: 8316694: Implement relocation of nmethod within CodeCache [v24]

[Chad Rakoczy]

On Tue, 3 Jun 2025 00:32:26 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> Thanks for pointing out the missing JVMTI event publication. I’m currently looking into what’s required to address that, along with JFR event publication that may also have been missed. I’d appreciate hearing others’ thoughts on how critical this is: should we treat it as a blocker for integration, or would it be acceptable to follow up with a separate issue?
>> 
>> We’re hoping to get this into JDK 25, as it would simplify both development and backporting of features related to hot code grouping. That said, if the consensus is that JVMTI/JFR support is essential upfront, this can be delayed until JDK 26.
>
>> We’re hoping to get this into JDK 25, as it would simplify both development and backporting of features related to hot code grouping. That said, if the consensus is that JVMTI/JFR support is essential upfront, this can be delayed until JDK 26.
> 
> I don't think this can be put into JDK 25. Too late and changes are not simple. And yes, JVMTI/JFR support is essential - you have to support all public functionalities of VM.

@vnkozlov When you get a chance, would you mind taking another look at this PR?

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PR Comment: https://git.openjdk.org/jdk/pull/23573#issuecomment-3085128980