RFR: 8361300: Document exceptions for Unsafe offset methods [v4]

[Chen Liang]

On Thu, 3 Jul 2025 18:41:27 GMT, Chen Liang <liach at openjdk.org> wrote:

>> Unsafe throws IAE for misusing static vs instance fields, and it's revealed that AtomicXxxFieldUpdaters are using this mechanism to reject static fields. This is not a good practice, but we can at least document this so we don't accidentally introduce problems.
>
> Chen Liang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Test to verify observed internal unsafe behaviors

I think from our discussions, there is nothing else to change for this patch. Please correct me if my understanding is wrong, and if it isn't, I hope someone can hop in and leave a review.

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PR Comment: https://git.openjdk.org/jdk/pull/25945#issuecomment-3049735188