RFR: 8256072: Eliminate JVMTI tagmap rehashing [v3]

Thu Nov 3 12:46:03 UTC 2022

On Thu, 3 Nov 2022 12:39:28 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

>> It is an optimization.  I don't think we want to create an identity hash for all oops just for lookup.  Is there a better way to find if an oop hashCode?
>
> I was hoping there was just a bit but you're right.  I renamed it to fast_no_hash_check() and only return true if the object is unlocked and added a comment.

I'm rerunning jvmti and jdi tests locally.

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PR: https://git.openjdk.org/jdk/pull/10938