public void testGetSubtype_subtypeSameAsDeclaringType() throws Exception {
    class Bar<T> {}
    class SubBar<T> extends Bar<T> {
      @Keep Bar<T> delegate;

      TypeToken<SubBar<T>> fieldTypeAsSubBar() {
        return new TypeToken<SubBar<T>>() {};
      }
    }

    Field delegateField = SubBar.class.getDeclaredField("delegate");
    // barType is Bar<T>, a ParameterizedType with no generic arguments specified