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I have a class need to be dessrialized using jackson and the class has an collection property. The collection is empty, but not null. Question: How to desersialise the class without empty collection. Sample code below: class Person { String name; List<Event> events; //....getter, setter } if person.list = new List<Event>(); persion.name = "hello"; then excepted the json would be: {name: "hello"} not {name: "hello", events:[]} How to make it? Thank you~~ ================================================ I have solved this by n1ckolas's advice. Thank you first. My jackson version is 2.1.1, and Spring-3.2.2 import better support for this verson of jackson. Also, this works for both arrays and collection. Below is my configuraion:  <mvc:annotation-driven> <mvc:message-converters> <bean class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> <property name="objectMapper" ref="objectMapper"/> </bean> </mvc:message-converters> </mvc:annotation-driven>  <bean name="objectMapper" class="org.springframework.http.converter.json.Jackson2ObjectMapperFactoryBean" autowire="no"> <property name="featuresToDisable"> <list>  <value type="com.fasterxml.jackson.databind.SerializationFeature">WRITE_EMPTY_JSON_ARRAYS</value> </list> </property> </bean>

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