docs: @Override
      public RegisteredJob register(String cronExp, Class<? extends LaJob> jobType, JobConcurrentExec concurrentExec,
              InitialCronOpCall opLambda) {
          assertArgumentNotNull("cronExp", cronExp);
          if (isNonCrom(cronExp)) {
              throw new IllegalArgumentException("The cronExp for register() should not be non-cron: " + toString());
          }
          assertArgumentNotNull("jobType", jobType);
          assertArgumentNotNull("concurrentExec", concurrentExec);
          assertArgumentNotNull("opLambda (cronOptionConsumer)", opLambda);
          return doRegister(cronExp, jobType, concurrentExec, opLambda);
      }