[geotk] Read Polygon from Xml Iso Metadata

[robin berenger]

Hello,

I have a problem reading an xml file and filling a default metadata with 
it. I can fill almost all attributes, but not
Metadata -> Identification -> Extent ->GeographicElement -> 
DefaultBoundingPolygon.

When i write :

for (GeographicExtent geographicExtent : geographicElements) {
                         if (geographicExtent instanceof 
DefaultBoundingPolygon){
                             DefaultBoundingPolygon 
defaultBoundingPolygon = (DefaultBoundingPolygon)geographicExtent;
                             Collection<Geometry> polygons = 
defaultBoundingPolygon.getPolygons();
                             System.out.println("Number of geometry 
objects :  :  " + polygons.size());
                         }

I get : Number of geometry objects   :  0

Is it possible to read this Polygon? I have no problem readind a 
bounding box .