I'm developing an aplication where a I take a route from google maps, save it on postgresql/postgis and i'd like to take this route (LineString geometry) and send back to the GoogleMaps.

I already got save the map on database, now I want to show the routes on map.

On the client side I'm using JQuery (AJAX) + Google Maps Api.
On the server side I'm using REST services with RestEasy.

I tried to work with Jackson to transform the Entity to JSON, but, the Jackson fails to transform geometric data in json.

Someone know how to transform this spatial data to JSON?

**My Entity:**

    public class Rota {
    ...
    private LineString caminho;
    public Rota() {
    }
    public Rota(Integer id, Usuario usuario, String descricao, LineString     lineString) {
        this.id = id;
        this.usuario = usuario;
        this.descricao = descricao;
        this.caminho = lineString;
    }
    // getters and setters
    @Type(type = "org.hibernate.spatial.GeometryType")
    public LineString getCaminho() {
        return caminho;
    }
    public void setCaminho(LineString caminho) {
        this.caminho = caminho;
    }
    // hashcode and equals method
    }

**My REST service:**

    @Inject
    private RotaBC rotaBC;

    @GET
    @Path("/rotas/{idrota}")
    @Produces("application/json")
    public Rota show(@PathParam("id") String id) {
        return rotaBC.show(Integer.parseInt(id));
    } 

**The error:**

15:05:16,447 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[default-host].[/sharecar].[default]] (http--0.0.0.0-8080-1) Servlet.service() for servlet default threw exception: java.lang.ClassNotFoundException: org.codehaus.jackson.map.JsonMappingException$Reference from [Module "org.codehaus.jackson.jackson-mapper-asl:main" from local module loader @1d332b (roots: /opt/demoiselle/server/jboss-7.1/modules)]
...
at org.jboss.modules.ConcurrentClassLoader.loadClass(ConcurrentClassLoader.java:120)
at org.codehaus.jackson.map.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:166)
...
at org.codehaus.jackson.map.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:446) at org.codehaus.jackson.map.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:150) at org.codehaus.jackson.map.ser.BeanSerializer.serialize(BeanSerializer.java:112)