You can do this per class or globally, I believe.
For per class, try @JsonSerialize above class declaration.
For a mapper, here's one example:
ObjectMapper mapper = new ObjectMapper(); mapper.configure(SerializationFeature.FAIL_ON_EMPTY_BEANS, false); // do various things, perhaps: String someJsonString = mapper.writeValueAsString(someClassInstance); SomeClass someClassInstance = mapper.readValue(someJsonString, SomeClass.class)
The StackOverflow link below also has an example for a Spring project.
For REST with Jersey, I don't remember off the top off my head, but I believe it's similar.
Couple of links I dug up: (edited 1st link due to Codehaus shutting down).