RFR: 8360564: Implement JEP 524: PEM Encodings of Cryptographic Objects (Second Preview) [v4]

[Sean Mullan]

On Thu, 9 Oct 2025 16:50:01 GMT, Anthony Scarpino <ascarpino at openjdk.org> wrote:

>> On NPE, there is no `key` param.
>
> Ok, I can reword RuntimeException somewhat, but it really is summed up by `Cipher.doFinal()` throwing an error, so an actual "encryption error".

What I mean is that it is very rare for an API to be specified to throw a `RuntimeException`. It is typically a subclass. Also, I know the PEM API is more geared towards throwing unchecked exceptions, but this is an existing lower-level class that already throws checked exceptions when things go wrong, so it does feel to me a bit inconsistent to be throwing runtime exceptions when crypto operations fail in the new methods.

Consider having another look at the way errors are treated in the next API update.

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PR Review Comment: https://git.openjdk.org/jdk/pull/27147#discussion_r2432926931