code: public Coordinate[] getEdge(Geometry geometry, GeometryIndex index) throws GeometryIndexNotFoundException {
  		try {
  			return delegate.getEdge(geometry, toDelegate(index));
  		} catch (org.geomajas.geometry.service.GeometryIndexNotFoundException e) {
  			throw fromDelegate(e);
  		}
  	}
docs: Given a certain geometry, get the edge the index points to. This only works if the index actually points to an
  edge.
  
  @param geometry The geometry to search in.
  @param index The index that points to an edge within the given geometry.
  @return Returns the edge if it exists.
  @throws GeometryIndexNotFoundException Thrown in case the index is of the wrong type, or if the edge could not be
  found within the given geometry.