RFR: 8371748: Remove the (empty) ThreadPoolExecutor.finalize() method

[SendaoYan]

On Fri, 14 Nov 2025 19:39:47 GMT, Brent Christian <bchristi at openjdk.org> wrote:

>> From the bug report:
>> Prior to JDK 11, ThreadPoolExecutor.finalize() was specified to
>> "[invoke] shutdown() when this executor is no longer referenced and it has no threads."
>> 
>> In JDK 11, ThreadPoolExecutor.finalize() was re-specified to do nothing, leaving the finalize() method empty. ([JDK-8190324](https://bugs.openjdk.org/browse/JDK-8190324)).
>> 
>> In JDK 18, finalize() was deprecated for removal ([JDK-8276447](https://bugs.openjdk.org/browse/JDK-8276447)), after first being "standard" deprecated in JDK 9 ([JDK-8165641](https://bugs.openjdk.org/browse/JDK-8165641)).
>> 
>> The finalize() method can safely be removed from ThreadPoolExecutor.
>
> Thank you, reviewers. :)
> Can I also get a review on the [CSR](https://bugs.openjdk.org/browse/JDK-8371856)? TIA.

@bchristi-git I have integrated https://github.com/openjdk/jdk/pull/28278, I think you should merge the master to fix the GHA test failures.

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PR Comment: https://git.openjdk.org/jdk/pull/28311#issuecomment-3541925754