CyclicBarrier syncBarrier = new CyclicBarrier(2);
OutputCommitter committer = new WaitingOutputCommitter(syncBarrier, true);
CommitterEventHandler commitHandler =
createCommitterEventHandler(dispatcher, committer);
commitHandler.init(conf);
commitHandler.start();
AppContext mockContext = mock(AppContext.class);
when(mockContext.isLastAMRetry()).thenReturn(true);
when(mockContext.hasSuccessfullyUnregistered()).thenReturn(false);
JobImpl job = createRunningStubbedJob(conf, dispatcher, 2, mockContext);