code: public void stop() throws DevFailed {
          try {
              if (isStarted.get()) {
                  tangoClasses.clear();
                  if (tangoExporter != null) {
                      tangoExporter.clearClass();
                      tangoExporter.unexportAll();
                  }
                  TangoCacheManager.shutdown();
                  EventManager.getInstance().close();
                  if (monitoring != null) {
                      monitoring.stop();
                  }
              }
          } finally {
              ORBManager.shutdown();
              logger.info("everything has been shutdown normally");
              isStarted.set(false);
          }
      }
docs: Stop the server and clear all
  
  @throws DevFailed