@NotNull
  Document parseXml(@NotNull String xmlString) throws OSFileAssociationException {
    try {
      DocumentBuilder builder = JavaXmlDocumentKt.createDocumentBuilder();
      StringReader stringReader = new StringReader(xmlString);
      InputSource source = new InputSource(stringReader);
      return builder.parse(source);
    }
    catch (SAXException | IOException e) {
      throw new OSFileAssociationException("XML read error: " + e.getMessage());
    }
  }
@NotNull
  Document parseXml(@NotNull String xmlString)