code: public static JobOperator getJobOperator() {
  
          jo = AccessController.doPrivileged(new PrivilegedAction<JobOperator>() {
              @Override
              public JobOperator run() {
                  return jobOperatorTracker.getService();
              }
          });
  
          if (jo == null) {
  
              String msg = getFormattedMessage("batch.container.unavailable",
                      new Object[] { "<batchPersistence/>"},
                      "CWWKY0350E: The batch container is not activated. Ensure that batch persistence has been configured via configuration element <batchPersistence />");
  
              throw new BatchRuntimeException(msg);
          }
  
          return jo;
      }
docs: The getJobOperator factory method returns
  an instance of the JobOperator interface.
  
  @return JobOperator instance.
  
  @throws BatchRuntimeException if job operator is not available