RFR: 8278268 - (ch) InputStream returned by Channels.newInputStream should have fast path for FileChannel targets [v7]

[Markus KARG]

On Wed, 22 Dec 2021 15:41:28 GMT, Alan Bateman <alanb at openjdk.org> wrote:

>> Good catch! Silly me. Fixed in https://github.com/openjdk/jdk/pull/6711/commits/fc7d00bf20861276e11e755c6794999eca95049d.
>> 
>>  JDK-8278369: Tried several times on my Windows 11 laptop, but still cannot reproduce. Maybe Lance's boxes are simply overloaded / too slow?
>
>> JDK-8278369: Tried several times on my Windows 11 laptop, but still cannot reproduce. Maybe Lance's boxes are simply overloaded / too slow?
> 
> I don't know if anyone has reproduced locally, instead it seems to be random Windows machines in our CI. There are differences between Windows client and server editions that periodically cause issues, I don't know if this is the case here.

@LanceAndersen AFAIK the problem was not originally caused by this PR itself, but in fact by a problem inside of Windows, and recent JDKs workaround that problem somehow meanwhile. So it should be safe to continue with this PR now. If I am wrong please let me know. Thanks.

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PR: https://git.openjdk.org/jdk/pull/6711