RFR: 8320971: Use BufferedInputStream.buf directly when param of implTransferTo() is trusted

Wed Nov 29 22:45:05 UTC 2023

On Wed, 29 Nov 2023 11:57:37 GMT, Sergey Tsypanov <stsypanov at openjdk.org> wrote:

> It looks like we can skip copying of `byte[]` in `BufferedInputStream.implTransferTo()` for `OutputStreams` residing in `java.io`.
> 
> See comment by @vlsi in https://github.com/openjdk/jdk/pull/10525/files#diff-e19c508d1bb6ee78697ecca66947c395adda0d9c49a85bf696e677ecbd977af1R612

Thank you for further optimizing transferTo()! If you fix what Alan proposed, this PR LGTM! 👍

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Changes requested by mkarg at github.com (no known OpenJDK username).

PR Review: https://git.openjdk.org/jdk/pull/16879#pullrequestreview-1756336805