code: public static synchronized void shutdown() {
          logger.info(Messages.get("info.service.shutdown"));
          if (container != null)
              try {
                  container.shutdown();
              } catch (Exception e) {
                  logger.error(Messages.get("info.service.error.shutdown"), e);
              }
          logger.info(Messages.get("info.service.shutdown.done"));
      }
docs: <p>shutdown.</p>