Google cares a lot about IPv6, and not only because Vint Cerf works at Google.
We have some local modifications and some networking expertise and intend to port/contribute that to openjdk10. Most of this is the work of my colleagues Alexander Smundak and Paul Marks. We hope we can do most of this work without asking too much of other net-dev engineers, but we will likely need help with porting to non-Linux platforms, running JPRT, and perhaps CCC/JEP process. We expect to make a large number of commits. Should there be a JEP to cover this? Is there a current net-dev engineer who feels they "own" this problem (Chris?)?