RFR: 8366671: Refactor Thread::SpinAcquire and Thread::SpinRelease [v4]

[Anton Artemov]

On Mon, 17 Nov 2025 22:10:53 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> For the same reason why `jfrSpinlockHelper.hpp` was included. 
>> 
>> It looks like the two includes above that are redundant and can be removed. This one cannot, it breaks builds.
>
> Include of "atomicAccess.hpp" seems unnecessary, as there are no (direct) uses here.
> "globalDefinitions.hpp" should not be removed, under the "Include What You Use" guidance
> (which hasn't yet made it into the Style Guide - https://bugs.openjdk.org/browse/JDK-8252896).

I removed "atomicAccess.hpp".

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PR Review Comment: https://git.openjdk.org/jdk/pull/28264#discussion_r2542147468