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