Hi,
I have api that wraps the google JS maps api. It was working fine in GXT 2.0 but when I tries to use it in GXT 3.0 project, the maps are no longer displayed.
I see them in the document, but the div and it's contents are grayed out.
Any ideas why this may be happening?

Widget that is used in the code to display the map.
Code:
public class MapWidget extends Widget {


  final private static String EXCEPTION_NOT_ATTACHED
      = "Map widget must be attached to window's document.";
  private Map map;
  
  public MapWidget(HasMapOptions options) {
    setElement(Document.get().createDivElement());
    map = Map.newInstance(getElement(), options.getJso());
  }
  
  public Map getMap() {
    return map;
  }


  /**
   * Sets the maps to fit to the given bounds.
   * 
   * Note: Call this *after* you add it to a LayoutPanel. It will throw an exception if not done so.
   */
  public void fitBounds(LatLngBounds bounds) {
    if (!this.isAttached()) {
      throw new IllegalStateException(EXCEPTION_NOT_ATTACHED);
    }
    map.fitBounds(bounds);
  }


  @Override
  protected void onLoad() {
    super.onLoad();
    // Resize the map and retain the center.
    LatLng center = map.getCenter();
    Event.trigger(map, "resize");
    map.setCenter(center);
  }
  
}
Java Script Object :
Code:
public class Map extends JavaScriptObject {
  
  /**
   * Creates a new map inside of the given HTML container, which is typically a DIV element.
   * @param div - div that will contain the map
   * @return instance of the map
   */
  public static native  Map newInstance(Element div) /*-{
    return new $wnd.google.maps.Map(div);
  }-*/;
  
  /**
   * Creates a new map inside of the given HTML container, which is typically a DIV element.
   * With map options.
   * @param div - div that will contain the map
   * @param opts - map options
   * @return instance of the map
   */
  public static native  Map newInstance(Element div, JavaScriptObject opts) /*-{
    return new $wnd.google.maps.Map(div, opts);
  }-*/;
  
  protected Map() {}
............
}