I think most JDKs these days are running mostly the same code (Oracle's Java) though a lot of them have little extra improvements or fixes (and some have longer

I think most JDKs these days are running mostly the same code (Oracle's Java) though a lot of them have little extra improvements or fixes (and some have longer support periods too). I try and stick with OpenJDK as that's the default Java implementation and it's probably a sensible default unless you have a requirement that one of the other ones specifically meets (like extended Java 8 security patches).