RFR: 8318096: Introduce AsymmetricKey interface with a getParams method [v6]

[Anthony Scarpino]

On Thu, 26 Oct 2023 17:37:01 GMT, Weijun Wang <weijun at openjdk.org> wrote:

>> Create a parent interface `AsymmetricKey` for `PublicKey` and `PrivateKey` and add a `getParams` method there. This makes it available to all current and future public and private keys.
>> 
>> No test. Might add one.
>
> Weijun Wang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   move the test, add annotations

I agree with the changes

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Marked as reviewed by ascarpino (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/16222#pullrequestreview-1700731380