code: public Coordinate[] getCoordinates() {
  		if (isEmpty()) {
  			return null;
  		}
  		Coordinate[] coordinates = new Coordinate[getNumPoints()];
  		int count = 0;
  		for (Polygon polygon : polygons) {
  			Coordinate[] polyCoords = polygon.getCoordinates();
  			for (Coordinate polyCoord : polyCoords) {
  				coordinates[count++] = polyCoord;
  			}
  		}
  		return coordinates;
  	}
docs: Return the concatenated array of all coordinates of all polygons in this MultiPolygon geometry.