//Double check to make sure that the field is null, otherwise our test would be invalid.
Assert.assertNull(srcChild1.getLastName());
Assert.assertEquals(new Integer(1), srcChild1.getId());
DozerBeanMapper mapper = new DozerBeanMapper();
mapper.addMapping(getParentMapping(ParentWithChildList.class));
mapper.addMapping(getChildMapping());
mapper.map(src, dest, MAP_ID_PATENT);
checkResults(src, dest);
}