RFR: 8366364: Return enabled signature schemes with SSLConfiguration#getSSLParameters() call [v8]

[Sean Mullan]

On Thu, 30 Oct 2025 18:10:59 GMT, Artur Barashev <abarashev at openjdk.org> wrote:

>> For the signatureSchemes we return only what's been set by the user, the default values are not being returned like for other SSLParameters.
>> Also enhancing "java -XshowSettings:security:tls" option to show the enabled signature schemes.
>
> Artur Barashev has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Signatures schemes using sha224 are not available on Windows

Looks good. Please add a release note.

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Marked as reviewed by mullan (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/27961#pullrequestreview-3405362011