Withdrawn: 8272137: Make Collection and Optional classes streamable

[Kevin Rushforth]

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

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

This pull request has been closed without being integrated.

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