RFR: 8295919: java.security.MessageDigest.isEqual does not adhere to @implNote [v3]

[Sean Mullan]

On Fri, 29 Sep 2023 16:34:28 GMT, Kevin Driver <kdriver at openjdk.org> wrote:

>> Fix JDK-8295919 by updating the javadoc to explain that a null or zero-length `digestb` will also result in a short-circuit response
>
> Kevin Driver has updated the pull request incrementally with one additional commit since the last revision:
> 
>   rephrased per code review

Looks good.

Please add a `noreg-doc` label to the bug.

-------------

Marked as reviewed by mullan (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/15933#pullrequestreview-1651283947