From: totolearning <totolearning_at_gmail.com>
Date: Thu, 5 Apr 2012 07:07:13 -0700 (PDT)

Thanks you all for giving the clue - This is the solution for a Resolver to
marshal nested lists as JSON - and make the List properly will be an Array
in JSON as well

import javax.ws.rs.core.MediaType;
import javax.ws.rs.ext.Provider;

import org.codehaus.jackson.jaxrs.JacksonJsonProvider;
import org.codehaus.jackson.map.ObjectMapper;
import org.codehaus.jackson.map.SerializationConfig;

@Provider
public class NewContextResolver extends JacksonJsonProvider {
                public NewContextResolver(){
                }

            @Override
                public ObjectMapper locateMapper(Class<?> type, MediaType mediaType)
            {
                    ObjectMapper mapper = super.locateMapper(type, mediaType);
                    //DateTime in ISO format "2012-04-07T17:00:00.000+0000"
               
mapper.configure(SerializationConfig.Feature.WRITE_DATES_AS_TIMESTAMPS,
false);
                //No 'null' value returned
                mapper.configure(SerializationConfig.Feature.WRITE_NULL_MAP_VALUES,
false);
                mapper.configure(SerializationConfig.Feature.WRITE_NULL_PROPERTIES,
false);
                return mapper;
            }
}

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