RFR: 8253119: Remove the legacy PlainSocketImpl and PlainDatagramSocketImpl implementation [v3]

[Alan Bateman]

On Thu, 24 Jun 2021 11:39:02 GMT, Patrick Concannon <pconcannon at openjdk.org> wrote:

> I've created an issue to track this: https://bugs.openjdk.java.net/browse/JDK-8269288

Thanks. So are you keeping the Objects.requireNonNull here? If so then it should probably be the 2-arg version so that the message is clear that the custom DatagramSocketFactory returned null, otherwise it will look like a DS bug.

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PR: https://git.openjdk.java.net/jdk/pull/4574