Intersect and union of two different list of custom objects with streams

This should do it, but in the example there are 5 records in each list that have same ids.

List<OutputData> result = listOfData1.stream()
        .flatMap(x -> listOfData2.stream()
                .filter(y -> x.getId() == y.getId())
                .map(y -> new OutputData(y.getId(), x.getName(), y.getType(), x.getAmount())))
        .collect(Collectors.toList());