RFR: 8376357: Parallel: Convert MutableSpace classes to use Atomic<T>

[Thomas Schatzl]

On Wed, 28 Jan 2026 21:18:07 GMT, David Holmes <dholmes at openjdk.org> wrote:

>> Hi all,
>> 
>>   please review these changes that convert `MutableSpace` classes to use `Atomic<T>`.
>> 
>> Testing: gha, tier1-5
>> 
>> Thanks,
>>   Thomas
>
> Overall looks good to me, but one nit.
> 
> Thanks

Thanks @dholmes-ora @walulyai for your reviews

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PR Comment: https://git.openjdk.org/jdk/pull/29427#issuecomment-3835756480