RFR: 8321206: Make Locale related system properties `StaticProperty` [v2]

[Naoto Sato]

On Wed, 6 Dec 2023 20:55:48 GMT, Naoto Sato <naoto at openjdk.org> wrote:

>> Currently, Locale-related system properties, such as `user.language` or `user.country`, are initialized when the `Locale` class is loaded. Making them static properties is safer than relying on the `Locale` class loading timing, which could potentially be changed depending on the implementation.
>
> Naoto Sato has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains four additional commits since the last revision:
> 
>  - Reflects review comments
>  - Merge branch 'master' into JDK-8321206-Locale-static-properties
>  - Add exclusions in cdsHeapVerifier for new StaticProperties
>  - initial commit

Thanks for the reviews. I will ask hotspot folks to rectify the reasonings in `cdsHeapVerifier.cpp` if necessary.

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PR Comment: https://git.openjdk.org/jdk/pull/16986#issuecomment-1847661347