code: public static void addJob(
        String jobName, String jobClassName, Map<String, Object> params, boolean isConcurrencyAllowed)
        throws SundialSchedulerException {
  
      try {
        addJob(
            jobName,
            getScheduler().getCascadingClassLoadHelper().loadClass(jobClassName),
            params,
            isConcurrencyAllowed);
      } catch (ClassNotFoundException e) {
        throw new SundialSchedulerException("ERROR ADDING JOB!!!", e);
      }
    }
docs: Adds a Job to the scheduler. Replaces a matching existing Job.
  
  @param jobName
  @param jobClassName
  @param params Set this null if there are no params
  @param isConcurrencyAllowed