code: protected void loadDefaultConfigurations() {
  		if (JK.getURL(DEFAULT_LABLES_FILE_NAME) != null) {
  			logger.debug("Load default lables from : " + DEFAULT_LABLES_FILE_NAME);
  			addLables(JKIOUtil.readPropertiesFile(DEFAULT_LABLES_FILE_NAME));
  		}
  	}
docs: Load default configurations.