code: public void setPriority(FaxJobPriority priority)
      {
          try
          {
              if(priority==FaxJobPriority.HIGH_PRIORITY)
              {
                  this.JOB.setPriority(Job.PRIORITY_HIGH);
              }
              else
              {
                  this.JOB.setPriority(Job.PRIORITY_NORMAL);
              }
          }
          catch(Exception exception)
          {
              throw new FaxException("Error while setting job priority.",exception);
          }
      }
docs: This function sets the priority.
  
  @param   priority
  The priority