RFR: 8295555: Primitive wrapper caches could be `@Stable`

[Roger Riggs]

On Mon, 12 Jun 2023 14:25:42 GMT, Per Minborg <pminborg at openjdk.org> wrote:

> This PR proposes adding `@Stable` to certain wrapper classes' cache arrays (e.g. `Integer` and `Long`).
> 
> Comments are welcome as to how to improve the VM's handling now that the backing cache array is `@Stable`. Are there simplifications to be made or are there other optimizations we might add?

Looks good

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Marked as reviewed by rriggs (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/14418#pullrequestreview-1475272046