RFR: 8286763: [REDO] (fc) Tune FileChannel.transferFrom()

[Alan Bateman]

On Mon, 16 May 2022 20:14:07 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

> Re-do the fix for [JDK-8274113](https://bugs.openjdk.java.net/browse/JDK-8274113) which was reverted by [JDK-8286677.](https://bugs.openjdk.java.net/browse/JDK-8286677)

Marked as reviewed by alanb (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8733