code: @SuppressWarnings("unchecked")
    public Class<? extends OutputFormat<?,?>> getOutputFormatClass() 
       throws ClassNotFoundException {
      return (Class<? extends OutputFormat<?,?>>) 
        conf.getClass(OUTPUT_FORMAT_CLASS_ATTR, TextOutputFormat.class);
    }
docs: Get the {@link OutputFormat} class for the job.
  
  @return the {@link OutputFormat} class for the job.