@Override
  public ASTNode findChildByRole(int role) {
    LOG.assertTrue(ChildRole.isUnique(role));
    switch (role) {
      case ChildRole.PARAMETER_LIST:
        return findChildByType(ANNOTATION_PARAMETER_LIST);

      case ChildRole.CLASS_REFERENCE:
        return findChildByType(JAVA_CODE_REFERENCE);

      default:
        return null;
    }
  }
@Override
  public ASTNode findChildByRole(int role)