code: public static NaaccrDictionary getDefaultUserDictionaryByUri(String uri) {
          if (uri == null)
              throw new RuntimeException("URI is required for getting the default user dictionary.");
          return getDefaultUserDictionaryByVersion(extractVersionFromUri(uri));
      }
docs: Returns the default user dictionary for the requested URI.
  @param uri URI, required
  @return the corresponding default user dictionary, throws a runtime exception if not found