@Override
    public boolean equals(@Nullable Locator o, @Nullable Locator o1) {
      if (o == o1) {
        return true;
      }
      if (o == null || o1 == null) {
        return false;
      }

      if ((o.getLineNumber() == o1.getLineNumber() && o.getColumnNumber() == o1.getColumnNumber())) {
        if (Objects.equals(o.getSystemId(), o1.getSystemId())) {
          return true;
        }
      }
      return false;
    }
@Override
    public boolean equals(@Nullable Locator o, @Nullable Locator o1)