code: private List<org.geomajas.layer.tile.RasterTile> calculateTilesForBounds(Bbox bounds) {
  		List<org.geomajas.layer.tile.RasterTile> tiles = new ArrayList<org.geomajas.layer.tile.RasterTile>();
  
  		if (bounds.getHeight() == 0 || bounds.getWidth() == 0) {
  			return tiles;
  		}
  
  
  		return tiles;
  	}
docs: Method based on WmsTileServiceImpl in GWT2 client.