Jackson confused with bidirectional one-to-many relationship

Question

I\'m using jackson 1.9.2 with Hibernate/Spring MVC through MappingJacksonHttpMessageConverter.

Jackson can not serialize bidirectional one-to-many relationship and

Answer 1

As a first solution, I kept these annotations and created an other class: ContactWithouPhoneNumber and added it as a field to the PhoneNumber class.

Now, before rendering, I copy all fields except PhoneNumber, from contact to contactWithoutPhoneNumber. The output JSON contains every thing I need.

This is the DTO design pattern.