Sure and I'll be happy to use it when available assuming I'm still working with JVM applications then. Meanwhile I'll still be stuck with fastutil-style templat

Sure and I'll be happy to use it when available assuming I'm still working with JVM applications then. Meanwhile I'll still be stuck with fastutil-style templating for another ten years and it kinda sucks. (Scala has specialization and value classes and opaque types so that covers a fairly big range but they make interop with Java tricky.)