From javadoc-dev mailing list:

> Hopefully I've gotten the right mailing list for this. I was digging
> around in the JDK 9 Javadoc javadocs, and noticed something that
> according to the package docs for jdk.javadoc.doclet, the successor to
> com.sun.javadoc.Type class is javax.lang.model.type.Type. This type
> doesn't seem to exist, though - everything seems to implement TypeMirror.