stanfordnlp/CoreNLP · error · IllegalArgumentException

Unsupported pathtype =

Error message

Unsupported ${prefix}pathtype = ${xmlPathType}

What it means

JollyDayHolidays.init() resolves the holiday XML data according to the <prefix>pathtype option, which must be one of classpath, file, or url. Any other value is rejected with an IllegalArgumentException naming the configured pathtype.

Solutions

1. Set the pathtype property to exactly one of: classpath, file, or url (case-insensitive).
2. Check for typos or trailing characters (e.g. 'classpath:', whitespace) in the properties value.
3. Verify which prefix is used for the options object and that the property key matches '<prefix>pathtype'.

Example fix

// before
props.setProperty("holidays.pathtype", "classpath: holidays.xml");
// after
props.setProperty("holidays.pathtype", "classpath");
props.setProperty("holidays.path", "holidays.xml");

String pathtype = props.getProperty(prefix + "pathtype", "").toLowerCase();
if (!pathtype.equals("classpath") && !pathtype.equals("file") && !pathtype.equals("url")) {
  throw new IllegalArgumentException(prefix + "pathtype must be classpath, file, or url; got: " + pathtype);
}

When it happens

Trigger: Setting the property '<prefix>pathtype' (e.g. 'holidays.pathtype') to a value other than 'classpath', 'file', or 'url' (case-insensitive) before calling init().

Common situations: Typo like 'classpath:' or 'resourse' in the properties file; copying config from another library that uses different pathtype vocabulary; forgetting to set the property at all so it defaults to an unexpected string.

Understand the failure class

Background: Invalid enum value errors: "Unknown type", "Invalid scope", "must be one of" — when a string is not on the library's allowed list — this error's family across 23 libraries.

Related errors

• FrenchLexer: Invalid option value in constructor: :
• Invalid feature name '
• Not a valid dashes style:
• : Invalid options key in constructor: %n
• Unknown clique: " + clique

AI-assisted analysis of stanfordnlp/CoreNLP@1b7edd19c4 (2026-09-10). Data as JSON: /api/errors/887edbab1c6340b0. Report an issue: GitHub.

Appendix: source

Thrown at src/edu/stanford/nlp/time/JollyDayHolidays.java:54

  @Override
  public void init(String prefix, Properties props) {
    String xmlPath = props.getProperty(prefix + "xml", "edu/stanford/nlp/models/sutime/jollyday/Holidays_sutime.xml");
    String xmlPathType = props.getProperty(prefix + "pathtype", "classpath");
    varPrefix = props.getProperty(prefix + "prefix", varPrefix);
    logger.info("Initializing JollyDayHoliday for SUTime from " + xmlPathType + ' ' + xmlPath + " as " + prefix);
    Properties managerProps = new Properties();
    managerProps.setProperty("manager.impl", "edu.stanford.nlp.time.JollyDayHolidays$MyXMLManager");
    try {
      URL holidayXmlUrl;
      if (xmlPathType.equalsIgnoreCase("classpath")) {
        holidayXmlUrl = getClass().getClassLoader().getResource(xmlPath);
      } else if (xmlPathType.equalsIgnoreCase("file")) {
        holidayXmlUrl = new URL("file:///" + xmlPath);
      } else if (xmlPathType.equalsIgnoreCase("url")) {
        holidayXmlUrl = new URL(xmlPath);
      } else {
        throw new IllegalArgumentException("Unsupported " + prefix + "pathtype = " + xmlPathType);
      }
      UrlManagerParameter ump = new UrlManagerParameter(holidayXmlUrl, managerProps);
      holidayManager = HolidayManager.getInstance(ump);
    } catch (java.net.MalformedURLException e) {
      throw new RuntimeException(e);
    }
    if (!(holidayManager instanceof MyXMLManager)) {
      throw new AssertionError("Did not get back JollyDayHolidays$MyXMLManager");
    }
    Configuration config = ((MyXMLManager) holidayManager).getConfiguration();
    holidays = getAllHolidaysMap(config);
  }

  @Override
  public void bind(Env env) {
    if (holidays != null) {
      for (Map.Entry<String, JollyHoliday> holidayEntry : holidays.entrySet()) {
        JollyHoliday jh = holidayEntry.getValue();

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