RFR: 8343484: Remove unnecessary @SuppressWarnings annotations (nio) [v2]

[Archie Cobbs]

On Sun, 3 Nov 2024 03:11:42 GMT, Archie Cobbs <acobbs at openjdk.org> wrote:

>> Please review this patch which removes unnecessary `@SuppressWarnings` annotations.
>
> Archie Cobbs 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:
> 
>  - Update copyright years.
>  - Merge branch 'master' into SuppressWarningsCleanup-nio
>  - Merge branch 'master' into SuppressWarningsCleanup-nio
>  - Remove unnecessary @SuppressWarnings annotations.

Argh!! `Charset-X-Coder.java.template` copyright header didn't get updated.

I will fix ASAP with a new issue & PR.

Thanks for the review in any case.

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PR Comment: https://git.openjdk.org/jdk/pull/21858#issuecomment-2455131454