RFR: 8295470: Update openjdk.java.net => openjdk.org URLs in test code

[Alan Bateman]

On Tue, 18 Oct 2022 11:55:06 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> This is a continuation of the effort to update all our URLs to the new top-level domain.
> 
> This patch updates (most) URLs in testing code. There still exists references to openjdk.java.net, but that are not strictly used as normal URLs, which I deemed need special care, so I left them out of this one, which is more of a straight-forward search and replace.
> 
> I have manually verified that the links work (or points to bugs.openjdk.org and looks sane; I did not click on all those). I have replaced `http` with `https`. I have replaced links to specific commits on the mercurial server with links to the corresponding commits in the new git repos.

This updates several tests that are also in Doug Lea's CVS for j.u.concurrent. That should be okay, just need to get them in sync at some point.

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PR: https://git.openjdk.org/jdk/pull/10744