RFR: JDK-8291509 Minor cleanup could be done in sun.security [v9]

[Mark Powers]

On Wed, 14 Sep 2022 23:15:29 GMT, Mark Powers <mpowers at openjdk.org> wrote:

>> https://bugs.openjdk.org/browse/JDK-8291509
>
> Mark Powers has updated the pull request incrementally with one additional commit since the last revision:
> 
>   final comments from Max

Thanks Sean and Max for being tenacious reviewing this big set of changes.

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PR: https://git.openjdk.org/jdk/pull/9972