RFR: 8185127: Add tests to cover hashCode() method for java supported crypto key types [v4]

[Sibabrata Sahoo]

On Fri, 16 Apr 2021 08:34:11 GMT, Sibabrata Sahoo <ssahoo at openjdk.org> wrote:

>> This is a simple Test to add few additional API coverage for all java supported key types. The objective of this Test is to cover equals() and hashcode() methods for each key types.
>
> Sibabrata Sahoo has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update CompareKeys.java

Getting java.io.NotSerializableException: sun.security.mscapi.CKey$NativeHandles for MSCAPI RSA algorithm. Need to change the Test with alternate implementation. For now Withdrawing the pull request.

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PR: https://git.openjdk.java.net/jdk/pull/3490