code: public MapConfiguration createOsmMap(int nrOfLevels) {
  		MapConfiguration configuration = new MapConfigurationImpl();
  		Bbox bounds = new Bbox(-OSM_HALF_WIDTH, -OSM_HALF_WIDTH, 2 * OSM_HALF_WIDTH, 2 * OSM_HALF_WIDTH);
  		configuration.setCrs(OSM_EPSG, CrsType.METRIC);
  		configuration.setHintValue(MapConfiguration.INITIAL_BOUNDS, bounds);
  		configuration.setMaxBounds(Bbox.ALL);
  		List<Double> resolutions = new ArrayList<Double>();
  		for (int i = 0; i < nrOfLevels; i++) {
  			resolutions.add(OSM_HALF_WIDTH / (OSM_TILE_SIZE * Math.pow(2, i - 1)));
  		}
  		configuration.setResolutions(resolutions);
  		return configuration;
  	}
docs: Create an OSM compliant map configuration with this number of zoom levels.
  
  @param nrOfLevels
  @return