[jdk17u] RFR: 8267256: Extend minimal retry for loopback connections on Windows to PlainSocketImpl

[Christoph Langer]

On Tue, 5 Oct 2021 22:06:30 GMT, Mat Carter <github.com+54955201+macarte at openjdk.org> wrote:

> Building upon [JDK-8250521](https://bugs.openjdk.java.net/browse/JDK-8250521) which only added support for NIOSocketImpl (default), add support to PlainSocketImpl which can be selected as the implementation.
> 
> This is required for the backport to 11u where NIOSocketImpl doesn't exist and PlainSocketImpl is the default implementation
> 
> To test on windows run with -Djdk.net.usePlainSocketImpl
> 
> Before fix loopback timeouts:
> 
> - NioSocketImpl ~200ms
> - PlainSocketImpl ~22200ms
> 
> After fix loopback timeouts:
> 
> - NioSocketImpl ~200ms
> - PlainSocketImpl ~200ms

> /integrate

Hi Mat,

the backport process means to wait until the maintainers flag the bug with the jdk17u-fix-yes label before issuing /integrate. No problem here since you're no comitter. I'll hold back with sponsoring until the approval is given. But to remeber for next time �� 

Cheers
Christoph

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PR: https://git.openjdk.java.net/jdk17u/pull/153