docs: private void lookupInstance(String args[]) {
          String serviceName = args[1];
          System.out.println("lookupInstance, serviceName=" + serviceName);
          try {
              ServiceInstance instance = ServiceDirectory.getLookupManager().lookupInstance(serviceName);
              printServiceInstance(instance);
          } catch (ServiceException e) {
              e.printStackTrace();
              fail(e.getServiceDirectoryError().getErrorMessage());
          }
      }