Envio de objetos por webservice

responseService.js

registroFactory.testing =function ($scope){

			var cad = "";
			cad = $sessionStorage['JSESSION'];             
			
			var response={};


			var datos={};
			var empresa={
					'@id':1,
					idEmpresa:3,
					ruc:"1077884561"};
			var empresita={'@id':2,idEmpresa:9,
					ruc:"1077884222"};
			var pais={'@id':3,idPais:3,
					nombre:"Eslovaquia"};
			
			datos['empresa']= empresa;
			datos['empresita'] = empresita;
			datos['pais'] = pais;


			response.observacion = "LOL";
			response.result = false;
			response.data = datos;

			console.log(response);

			$http({
				method  : 'POST',
				url     : '/api/public/test',	            
				data    : response
			})
			.success(function(status) {
				if(status==200){
					console.log('me llegoooo');
				}                                
			});
		};

RestDataResponse.java

package edu.pe.pm.ilcb.sga.rest.objects;

import java.util.Map;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Table;

import com.fasterxml.jackson.annotation.JsonIdentityInfo;
import com.fasterxml.jackson.annotation.ObjectIdGenerators;

@JsonIdentityInfo(generator=ObjectIdGenerators.IntSequenceGenerator.class, property="@id")
@Entity
@Table
public class RestDataResponse {
	private String observacion;
	private Boolean result;
	private Map<String,Object> data;
	
	public RestDataResponse(){
		
	}
	
	public RestDataResponse(String observacion, boolean result	) {
		this.observacion = observacion;
		this.result = result;

	}
	@Column
	public String getObservacion() {
		return observacion;
	}
	public void setObservacion(String observacion) {
		this.observacion = observacion;
	}
	@Column
	public Boolean getResult() {
		return result;
	}
	public void setResult(Boolean result) {
		this.result = result;
	}
	@Column
	public Map<String, Object> getData() {
		return data;
	}

	public void setData(Map<String, Object> data) {
		this.data = data;
	}
	
	
}

Service

	@RequestMapping( headers = "Content-Type=application/json",value="/test", method=RequestMethod.POST)
	@ResponseStatus(value = HttpStatus.OK)
	public @ResponseBody RestMessageResponse testCesar(@RequestBody RestDataResponse data){
		System.out.println(data.getData());
		return new RestMessageResponse("Enter");
	}

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.hibernate.SessionFactory;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.transaction.TransactionConfiguration;
import org.springframework.transaction.annotation.Transactional;

import com.fasterxml.jackson.core.JsonProcessingException;

import edu.pe.pm.ilcb.sga.domain.AiAlumno;
import edu.pe.pm.ilcb.sga.domain.AiEmpresa;
import edu.pe.pm.ilcb.sga.helpers.mvc.HibernateAwareObjectMapper;

@TransactionConfiguration
@Transactional
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:testContext.xml"})
public class test2 {



        @Autowired
        SessionFactory sf;

        @Test
        public void testingHibernateToJson(){
                HibernateAwareObjectMapper mapper = new HibernateAwareObjectMapper();
                @SuppressWarnings("unchecked")
                List<AiEmpresa> avisos =
                                sf.getCurrentSession().createQuery("select e from AiEmpresa e "
                                                + "inner join fetch e.aiEmpresaSeguridad es "
                                                + "inner join fetch e.pais p ").list();        
                try {

                        Message m = new Message (true,"Hola Mundo");
                        //m.getData().put("Aviso",avisos.get(0));

                        //avisos.get(0).setAiEmpresaSeguridad(null);
                        String json = mapper.writeValueAsString(m);
                        System.out.println( json);

                        AiAlumno a = new AiAlumno();
                        a.setNombre("Perio Alberto");

                        List<Object> empresas = new ArrayList<Object>();
                        empresas.add(avisos.get(0));
                        //empresas.add(a);
                        String jsonEmpresa = mapper.writeValueAsString(empresas);


                        try {                   

                            AiEmpresa[] myObjects = mapper.readValue(jsonEmpresa, AiEmpresa[].class);

                            System.out.println(myObjects[0]);

                            Message message = mapper.readValue(json, Message.class);
                            //System.out.println( ( (AiEmpresa) message.getData().get("Aviso") ).getAiEmpresaSeguridad());

                        } catch (IOException e) {
                                // TODO Auto-generated catch block
                                e.printStackTrace();
                        }
                } catch (JsonProcessingException e) {
                        // TODO Auto-generated catch block
                        e.printStackTrace();
                }
        }

}