RFR: JDK-8294618: Update openjdk.java.net => openjdk.org [v4]

[Joe Darcy]

On Fri, 30 Sep 2022 20:25:28 GMT, Joe Darcy <darcy at openjdk.org> wrote:

> Also, FWIW, there are 100+ hits in `test` as well. But that is so many it might warrant a separate PR..?

Filed a few follow-up bugs:

JDK-8294724: Update openjdk.java.net => openjdk.org in tests (umbrella)
JDK-8294725: Update openjdk.java.net => openjdk.org in java command man page

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PR: https://git.openjdk.org/jdk/pull/10501