@NotNull
  public static DescendentBasedRootFilter createAnnotationsRootDetector() {
    return new DescendentBasedRootFilter(AnnotationOrderRootType.getInstance(), false, "external annotations",
                                              file -> ExternalAnnotationsManager.ANNOTATIONS_XML.equals(file.getName()));
  }
@NotNull
  public static DescendentBasedRootFilter createAnnotationsRootDetector()