How to add a polygon to the map ?

<?xml version="1.0" encoding="utf-8"?>
<mx:Application
  xmlns:mx="http://www.adobe.com/2006/mxml"
  xmlns:framework="com.esri.aws.osgi.framework.*"
  xmlns:map="com.esri.aws.awx.map.*"
  creationComplete="onCreationComplete()"
  layout="absolute"
  >
  <mx:Script>
    <![CDATA[
      import flash.geom.Point;
      import com.esri.aws.awx.map.layers.overlays.Polygon;
      import com.esri.aws.awx.geom.PolygonShape;
      
      private function onCreationComplete() : void
      {
        var coords : Array = [
          new Point( 0, 0),
          new Point( -97.06138,32.837),
          new Point( 0, 32.832),
          new Point( 0, 0)
        ];
        var polygonShape : PolygonShape = new PolygonShape( coords);
        var polygon : Polygon = new Polygon( polygonShape);
        map.polygonLayer.addOverlay( polygon);
      }
    ]]>
  </mx:Script>
  <framework:Framework/>
  <map:Map id="map"/>
</mx:Application>