How to PUT a JSON payload and have Jackson automagically create an object?

[Jarrod Roberson]

I am trying to PUT ( and POST ) to a ServerResource and have it convert my JSON 
payload to the corresponding Java POJO, but all I get is 415 "Unsupported Media 
Type" errors.

My POJO implements Serializable, @Get("json") seems to work as it is supposed 
to.

@Put("json") gives me the 415 Unsupported Media Type. As well as does 
@Post("json")

I have searched the net, Google, forums, for 4 hours now, and nothing.

I have the three Jackson dependencies, ext, core and mapper in the right places.

Attached is what I can't get to work.

package app.resource;

import app.data.Person;
import org.restlet.resource.Get;
import org.restlet.resource.Put;
import org.restlet.resource.ServerResource;

import java.util.Date;
import java.util.HashMap;
import java.util.Map;

public class PersonResource extends ServerResource
{
    private static Map<String, Person> DB = new HashMap<String, Person>();

    static
    {
        final Person p = new Person("123", "Jarrod", "Roberson",new Date());
        DB.put(p.getId(), p);
    }

    @Put("json")
    public void store(final Person p)
    {
        DB.put(p.getId(), p);
    }

    @Get("json")
    public Person find()
    {
        final String id = (String) super.getRequestAttributes().get("id");
        return DB.get(id);
    }
}

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PersonResource.java
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