public JobProfile getJobProfile(JobID jobid)
          throws IOException {
    RunningJob rj = getJob(jobid);
    if(rj == null) {
      return null;
    }
    JobStatus jobStatus = rj.getJobStatus();
    return new JobProfile(jobStatus.getUsername(), jobStatus.getJobID(),
            jobStatus.getJobFile(), jobStatus.getTrackingUrl(), jobStatus.getJobName());
  }
Grab a handle to a job that is already known to the JobTracker.

@return Profile of the job, or null if not found.
shims/0.23/src/main/java/org/apache/hadoop/mapred/WebHCatJTShim23.java