RFR: 8278268 - (ch) InputStream returned by Channels.newInputStream should have fast path for FileChannel targets [v8]

[Markus KARG]

On Mon, 13 Dec 2021 17:26:39 GMT, Markus KARG <duke at openjdk.java.net> wrote:

>> This sub-issue defines the work to be done to implement JDK-8265891 solely for the particular case of FileChannel.transferFrom(ReadableByteChannel), including special treatment of SelectableByteChannel.
>
> Markus KARG has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Ignoring the case of intermittend zero reads as proposed by Alan Bateman
>   
>   Signed-off-by: Markus Karg <markus at headcrashing.eu>

Is the cleanup essential for this PR?

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PR: https://git.openjdk.java.net/jdk/pull/6711