docs: protected void loadQueryProperties(String propertyFilename) throws IOException {
  
          Properties properties = new Properties();
          properties.load(getClass().getClassLoader().getResourceAsStream(propertyFilename));
          @SuppressWarnings("unchecked")
          Enumeration<String> propertyNames = (Enumeration<String>)properties.propertyNames();
          while (propertyNames.hasMoreElements()) {
              String propertyName = propertyNames.nextElement();
              m_queries.put(propertyName, properties.getProperty(propertyName));
          }
      }