@Test
    public void testNullOnWrite() throws JsonProcessingException {
        Map<String, Object> data = new HashMap<>();
        data.put("someKey", null);
        data.put("someId", "abc123");
        String result = objectMapper.writeValueAsString(data);
        assertTrue(result.contains("null"));
    }
Tests the customized {@link ObjectMapper} that is used by {@link com.netflix.conductor.Conductor}
application.
server/src/test/java/com/netflix/conductor/common/config/ConductorObjectMapperTest.java