@Bean
public ObjectMapper objectMapper() {
    ObjectMapper objectMapper = new ObjectMapper();

    SimpleModule simpleModule = new SimpleModule();
    simpleModule.addSerializer(LocalDateTime.class, new MojSerializerDateTime());
    simpleModule.addDeserializer(LocalDateTime.class, new MojDeserializerDateTime());
    objectMapper.registerModule(simpleModule);

    return objectMapper;
}