@Override
  public ASTNode findChildByRole(int role) {
    switch (role) {
      case ChildRole.LPARENTH:
        return findChildByType(JavaTokenType.LPARENTH);
      case ChildRole.RPARENTH:
        return findChildByType(JavaTokenType.RPARENTH);
      default:
        LOG.assertTrue(false);
        return null;
    }
  }
@Override
  public ASTNode findChildByRole(int role)