import com.fasterxml.jackson.annotation.JsonIdentityInfo;
import com.fasterxml.jackson.annotation.JsonTypeInfo;
import com.fasterxml.jackson.annotation.ObjectIdGenerators;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.util.ArrayList;
import java.util.List;


public class JacksonDeserializationTest2 {
    @org.junit.Test
    public void test() throws Exception {
        List<Bar> bars = new ArrayList<Bar>();
        Bar bar1 = new Bar();
        Foo p1 = new Foo();
        p1.setObject(bar1);
        bar1.setFoo(p1);
        bars.add(bar1);

        RootEntity rootEntity = new RootEntity();
        rootEntity.setBars(bars);

        ObjectMapper mapper = new ObjectMapper();

        RootEntity deserialized = mapper.readValue(mapper.writeValueAsString(rootEntity),RootEntity.class);
    }

    @JsonTypeInfo(use=JsonTypeInfo.Id.CLASS, include=JsonTypeInfo.As.PROPERTY, property="@class")
    public static class BaseEntity {
    }

    @JsonIdentityInfo(generator=ObjectIdGenerators.IntSequenceGenerator.class, property="@id")
    public static class RootEntity extends BaseEntity
    {
        private List<Bar> bars;

        public List<Bar> getBars() {
            return bars;
        }

        public void setBars(List<Bar> bars) {
            this.bars = bars;
        }
    }

    public static class Foo extends BaseEntity {
        private BaseEntity object;

        public BaseEntity getObject() {
            return object;
        }

        public void setObject(BaseEntity object) {
            this.object = object;
        }
    }

    @JsonIdentityInfo(generator=ObjectIdGenerators.IntSequenceGenerator.class, property="@id")
    public static class Bar extends BaseEntity
    {
        private Foo foo;

        public Foo getFoo() {
            return foo;
        }

        public void setFoo(Foo foo) {
            this.foo = foo;
        }
    }
}