Annotations for owner types are invers to the type navigation order.

Foo.java

class Foo<T> {
    abstract class Bar {
         // type path is not null but .
        abstract void qux(@TypeAnnotation(1) Bar arg);
        abstract void baz(Foo<T>.@TypeAnnotation(7) Bar arg);
    }
}

@Target(Element.TYPE_USE)
@Retention(RetentionPolicy.RUNTIME)
@interface TypeAnnotation {
  int value();
}