private static boolean areDelimitersEqual(@Nullable ASTNode node1, @Nullable ASTNode node2) {
    if (node1 == null && node2 == null) return true;
    if (node1 == null || node2 == null) return false;
    final String text1 = node1.getText();
    final String text2 = node2.getText();
    return text1.equals(text2);
  }
private static boolean areDelimitersEqual(@Nullable ASTNode node1, @Nullable ASTNode node2)