RFR: 8364544: Extract the checks of AtomicXxxFieldUpdater into a common place [v4]

[Steve Armstrong]

On Tue, 25 Nov 2025 10:30:26 GMT, Viktor Klang <vklang at openjdk.org> wrote:

>> Steve Armstrong has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fix try-catch block to not wrap IllegalArgumentException
>>   
>>   The validation exceptions should be thrown directly to the caller,
>>   not wrapped in RuntimeException. Only the field lookup and access
>>   checking code should be in the try-catch block.
>
> (Adding this comment here as well as the linked JBS issue)
> 
> Personally I think this isn't worth the effort—there's little-to-no updates to these classes/APIs and there's no clear benefit in terms of safety and/or performance.
> 
> My preference here would be to move to deprecate these classes and make sure that it is clearly documented that VarHandle is the intended successor API.
> 
> Tagging @DougLea  and Dr Deprecator @stuart-marks for their input.

Thankyou @viktorklang-ora for letting me know your thoughts on this.

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PR Comment: https://git.openjdk.org/jdk/pull/28464#issuecomment-3575306830