RFR: 8375624: G1: Convert G1JavaThreadsListClaimer to use Atomic<T>

[Thomas Schatzl]

On Tue, 20 Jan 2026 10:01:42 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Hi all,
>> 
>>   please review this change that makes `G1JavaThreadsListClaimer` use `Atomic<T>` instead of `AtomicAccess'.
>> 
>> Testing: gha
>> 
>> Thanks,
>>   Thomas
>
> Marked as reviewed by shade (Reviewer).

Thanks @shipilev @kimbarrett for your reviews

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PR Comment: https://git.openjdk.org/jdk/pull/29299#issuecomment-3772161361