mapper.map(dest, src);
// cumulative relationship
int[] prims = { 1, 2, 3, 1, 2, 3 };
houseClone.getOwner().setPrim(prims);
// add two more rooms
Room room1 = new Room();
room1.setName("Living");
Room room2 = new Room();
room2.setName("kitchen");
Van van = new Van();
van.setName("van2");
houseClone.getRooms().add(room1);
houseClone.getRooms().add(room2);
houseClone.getCustomSetGetMethod().add(van);