code: public RunningJob submitJob(String jobFile) throws FileNotFoundException,
                                                       InvalidJobConfException,
                                                       IOException {
      // Load in the submitted job details
      JobConf job = new JobConf(jobFile);
      return submitJob(job);
    }
docs: Submit a job to the MR system.
  
  This returns a handle to the {@link RunningJob} which can be used to track
  the running-job.
  
  @param jobFile the job configuration.
  @return a handle to the {@link RunningJob} which can be used to track the
  running-job.
  @throws FileNotFoundException
  @throws InvalidJobConfException
  @throws IOException