public JobID getJobID() {
    return jobId;
  }
@Test
  public void testGetJobID() {
    JobID jobId = new JobID("1234", 0);
    TaskID taskId = new TaskID(jobId, TaskType.MAP, 0);

    assertSame("TaskID did not store the JobID correctly",
        jobId, taskId.getJobID());

    taskId = new TaskID();

    assertEquals("Job ID was set unexpectedly in default contsructor",
        "", taskId.getJobID().getJtIdentifier());
  }