RFR: 8375964: G1: Convert G1BuildCandidateRegionsTask to use Atomic<T>

[Ivan Walulya]

On Wed, 21 Jan 2026 10:50:41 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   please review the changes to let `G1BuildCandidateRegionsTask` use `Atomic<T>`.
> 
> Testing: gha
> 
> Thanks,
>   Thomas

Marked as reviewed by iwalulya (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/29339#pullrequestreview-3697125384