RFR: 8327729: Remove deprecated xxxObject methods from jdk.internal.misc.Unsafe [v3]

[Eirik Bjørsnøs]

On Sun, 10 Mar 2024 13:47:06 GMT, Eirik Bjørsnøs <eirbjo at openjdk.org> wrote:

>> Please review this PR which removes the 19 deprecated `xxObject*` alias methods from `jdk.internal.misc.Unsafe`.
>> 
>> These methods were added in JDK-8213043 (JDK 12), presumably to allow `jsr166.jar` to be used across JDK versions. This was a follow-up fix after JDK-8207146 had renamed these methods to `xxReference*'.
>> 
>> Since OpenJDK is now the single source of truth for `java.util.concurrent`, time has come to remove these deprecated alias methods.
>> 
>> This change was initially discussed here: https://mail.openjdk.org/pipermail/core-libs-dev/2024-March/119993.html
>> 
>> Testing: This is a pure deletion of deprecated methods, so the PR includes no test changes and the `noreg-cleanup` label is added in the JBS. I have verified that all `test/jdk/java/util/concurrent/*` tests pass.
>> 
>> Tagging @DougLea and @Martin-Buchholz to verify that this removal is timely.
>
> Eirik Bjørsnøs has updated the pull request incrementally with two additional commits since the last revision:
> 
>  - Replace calls to Unsafe.putObject with Unsafe.putReference
>  - Update a code comment referencing Unsafe.compareAndSetObject to reference Unsafe.compareAndSetReference instead

Thanks for helping out with this cleanup effort, Jaikiran, Alan, Mandy, Doug and Martin!

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PR Comment: https://git.openjdk.org/jdk/pull/18176#issuecomment-1992202476