@Test public void simpleMappingTest() { final String mappingGroupId = UUID.randomUUID().toString(); final List<Mapping> mappings = Lists.newLinkedList(); final Mapping simpleMapping = simpleMapping(); final Mapping complexMapping = complexMapping(); mappings.add(simpleMapping); mappings.add(complexMapping); final MappingGroup mappingGroup = new MappingGroup(mappingGroupId); mappingGroup.setName("my special mapping group"); mappingGroup.setDescription("includes two mappings"); mappingGroup.setMappings(mappings); String json = null; try { json = objectMapper.writeValueAsString(mappingGroup); } catch (final JsonProcessingException e) { e.printStackTrace(); } MappingGroupTest.LOG.debug("mapping group json: " + json); }