On Thu, 2 Jul 2026 16:30:16 GMT, Serguei Spitsyn <[email protected]> wrote:

>  I'm not sure if we need to add anything about it into the JVMTI spec.

The previous paragraph mentions using a tag as a "pointer to more detailed 
information". It could be expanded to speak about using the tag as a pointer to 
memory that is deallocated by the ObjectFree event but I think it's drawing 
attention to a usage that will be problematic with value objects, so we kinda 
don't want agents to use it for that. I think the details on the tag map are 
just internal/implementation so don't need to go into the spec.

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PR Comment: https://git.openjdk.org/valhalla/pull/2615#issuecomment-4869246606

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