Spring Using @JsonTypeInfo property impose in sub class [SPR-15830]

Alex Rader opened SPR-15830 and commented

@JsonTypeInfo( use = JsonTypeInfo.Id.NAME,  include = JsonTypeInfo.As.PROPERTY, property = "type")
@JsonSubTypes({@JsonSubTypes.Type(Dog.class), @JsonSubTypes.Type(Elephant.class)})
public abstract class Animal {
    private String sound;

    public String getSound() {
        return sound;
    }

    public void setSound(String sound) {
        this.sound = sound;
    }
}

@JsonTypeName("dog")
public class Dog extends Animal {
}

@JsonTypeName("elephant")
public class Elephant extends Animal {
}

@Controller
public class MyController {

    @RequestMapping(value = "animal")
    public  @ResponseBody String save(@RequestBody  Animal animal) {
        System.out.println(animal.getClass());
        return success;
    }

    @RequestMapping(value = "dog")
    public  @ResponseBody String save(@RequestBody  Dog dog) {
        System.out.println(dog.getClass());
        return success;
    }
}

When I send request to /dog

{
    "sound": "woof"
}

I get exception

com.fasterxml.jackson.databind.JsonMappingException: Unexpected token (END_OBJECT), expected FIELD_NAME: missing property 'type' that is to contain type id  (for class Dog)

When I send "type" filed to /animal, this is ok, but for /dog this is not desired.

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No further details from SPR-15830

Comment From: snicoll

The (short) exception that you've shared is from Jackson. I don't really see what you'd expect the core container to do as we rely on Jackson to deserialize the data. If you believe this is a bug in Spring Framework, please share a small sample, and this issue can be reopened for consideration.