Unlike the C/C++ compiler landscape which for industry use cases has a few high profile high quality candidates, and all vendors of these solutions are pretty much guaranteed to employ top level experts to evolve their softwares, the picture with the JDKs is much less clear. Apparently everybody who has some sort of name brand now rolls their own version, and even throughout this thread here there really is no sharp level of distinguishment based on a clear point of comparison between even the most popular contenders.

Looks like muddy waters to me. A shame really, they totally ran the JDK release management into the ground.