RFR: 8373649: Convert simple AtomicAccess usage in ConcurrentHashTable to use Atomic<T>

[Thomas Schatzl]

On Mon, 15 Dec 2025 03:23:07 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

> Please review this conversion of simple AtomicAccess usage in
> ConcurrentHashTable to use Atomic<T>.  This is split out from the complete
> conversion to simplify reviewing and testing.
> 
> Testing: mach5 tier1-3

Marked as reviewed by tschatzl (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/28816#pullrequestreview-3577926251