java - Retrofit parsing JSON response null values Android -

hi cant work out why getting null values response. im using retrofit library on android.

raw json

{ "images": [ {   "image": {     "name": "nike adver",     "url": "http:\/\/wallpaperbarcelona.com\/wp-content\/uploads\/2013\/07\/neymar-nike-advert.jpg",     "type": "photo"   } }] } 

// interface

public interface promoimagesapi { @get("/friendscms/images/?type=photo&format=json") void promoimages(callback<imagesobject> callback); 

}

request function

private void requestnewsdata(string uri) { restadapter api = new restadapter.builder().setendpoint(endpoint).build(); promoimagesapi restapi = api.create(promoimagesapi.class);  restapi.promoimages(new callback<images>() {  @override public void success(images imageobjects, response response) {      system.out.println("webservice " +response.geturl());       (int = 0; < imageobjects.images.size(); i++) {          system.out.println("webservice " +imageobjects.getimages().get(i).geturl());          }       }   @override  public void failure(retrofiterror error) {      system.out.println("webservice " + error);         }     }); 

} pojo

public class imagesobject { public list<images> images;  public class images {      public string name;     public string url;     public string type;       public string getname() {         return name;     }      public string geturl() {         return url;     }      public string gettype() {         return type;     }      public void setname(string name) {         this.name = name;     }      public void seturl(string url) {         this.url = url;     }      public void settype(string type) {         this.type = type;     } } 

}

the thing amount of elements in loop correct, have tested that, values null. have missed something, gratefully appreciated .

use http://www.jsonschema2pojo.org/ create java object model , following call

public interface promoimagesapi { @get("/friendscms/images/?type=photo&format=json") void promoimages(callback<images> callback);