RFR: 8358099: PEM spec updates [v3]

[Sean Mullan]

On Wed, 4 Jun 2025 22:23:05 GMT, Anthony Scarpino <ascarpino at openjdk.org> wrote:

>> Hi, I need a review of some PEM updates.  `PEMRecord.pem` is renamed to `content` to better describe that it is the base64 content and not including the header and footer. Additionally, `PEMRecord.getEncoded()` is removed and some javadoc clarifications for PEMEncoder and PEMDecoder.  Thanks.
>
> Anthony Scarpino has updated the pull request incrementally with one additional commit since the last revision:
> 
>   wrong "PEM types"

Marked as reviewed by mullan (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/25620#pullrequestreview-2900090595