IPv6 in Java on FreeBSD

Hi,

IPv6 support in Java on FreeBSD has been an issue for quite a while. I
believe I have found the cause of that, and have created PRs both for
the OpenJDK 23[1] and 22[2] ports. In addition this change is also
included in the work I've done for the next version (24) and in the
patchset I'm working on for the OpenJDK main branch for upstreaming.

One question I have is, how far back does it make sense to port this
change? Is it ok to patch the most recent JDK versions, or do we want to
apply it all the way back to JDK 8 or 11?

Also, will this consideration change if we move the default JDK
installed to a newer version, say 21?

Thanks in advance on any feedback you may have on this!

Take care!
Harald!

[1]: https://github.com/battleblow/jdk23u/pull/5
[2]: https://github.com/battleblow/jdk22u/pull/1