RFR: 8265891: (ch) InputStream returned by Channels.newInputStream should override transferTo [v6]

[Markus KARG]

On Sat, 31 Jul 2021 21:20:28 GMT, Markus KARG <github.com+1701815+mkarg at openjdk.org> wrote:

> I suspect the eventually patch will need have to make use of the blockingLock to prevent the underlying channels from being changed to non-blocking during the transfer.

The blocking lock now is used since https://github.com/openjdk/jdk/pull/4263/commits/f4485d5b6a3b5c471feff5642dfef0fc747d3fac to prevent this.

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PR: https://git.openjdk.java.net/jdk/pull/4263