RFR: 8272137: Make Collection and Optional classes streamable

[CC007]

On Mon, 9 Aug 2021 12:28:23 GMT, CC007 <github.com+5381337+CC007 at openjdk.org> wrote:

> create Streamable and ParallelStreamable interface and use them in Collection and Optional

Also, sorry for my Millennial lack of knowledge of older communication methods, but if I wanted to reply to a specific thread in a mailing list, how would I do that? Does it require certain content in the subject and/or quoted text in the message body?

It does feel way less intuitive than just clicking the comment box or clicking `... -> Quote reply` on a comment in this PR

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PR: https://git.openjdk.java.net/jdk/pull/5050