JobQueueManager extends JobTreeTableBean { @Override protected Integer getRootJobId() { return null; }  void observe(@Observes(notifyObserver = Reception.IF_EXISTS) @Modified JobQueue queueEvent);  }
@Test public void testGetRootJobId_1() throws Exception { JobQueueManager fixture = new JobQueueManager(); fixture.tableState = new TableViewState(); fixture.tablePrefs = new TablePreferences(new LinkedList()); Integer result = fixture.getRootJobId(); assertNull(result); }