@Test
public void testTicket158() {
// construct the plan
FileDataSource source = new FileDataSource(new DummyInputFormat(), IN_FILE, "Source");
MapOperator map = MapOperator.builder(new IdentityMap()).name("Map1").input(source).build();
ReduceOperator reduce1 = ReduceOperator.builder(new IdentityReduce(), IntValue.class, 0).name("Reduce1").input(map).build();
CrossOperator cross1 = CrossOperator.builder(new DummyCrossStub()).name("Cross1").input1(reduce1).input2(source).build();