private JobModel deserializeFromObjectNode(ObjectNode jobModelJson) throws IOException {
    // use plain ObjectMapper to get JSON string
    String jsonString = new ObjectMapper().writeValueAsString(jobModelJson);
    return this.samzaObjectMapper.readValue(jsonString, JobModel.class);
  }
Given a {@link ContainerModel} JSON with only an "id" field, deserialization should fail.
This verifies that even though {@link ContainerModel} has a getId method, the "id" field is not used, since
"processor-id" is the field that is supposed to be used.
samza-core/src/test/java/org/apache/samza/serializers/model/TestSamzaObjectMapper.java