[jdk21u] RFR: 8316428: G1: Nmethod count statistics only count last code root set iterated

[Jiangli Zhou]

On Wed, 23 Oct 2024 20:11:00 GMT, Jiangli Zhou <jiangli at openjdk.org> wrote:

> Auto suggested description:
> This pull request contains a backport of commit [fab372d3](https://github.com/openjdk/jdk/commit/fab372d3a23b17f64ae4306e28bdb0bc511f4912) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
> 
> The commit being backported was authored by Thomas Schatzl on 19 Sep 2023 and was reviewed by Ivan Walulya and Albert Mingkun Yang.

Done. New PR: https://github.com/openjdk/jdk21u-dev/pull/1096. Thanks

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PR Comment: https://git.openjdk.org/jdk21u/pull/458#issuecomment-2435527128