code: public CloseableIterator<GeometryIndex> queryIndexedFeatures(
  			BoundingBox webMercatorBoundingBox) {
  
  		// Create an expanded bounding box to handle features outside the tile
  		// that overlap
  		BoundingBox expandedQueryBoundingBox = expandBoundingBox(webMercatorBoundingBox);
  
  		// Query for geometries matching the bounds in the index
  		CloseableIterator<GeometryIndex> results = featureIndex.query(
  				expandedQueryBoundingBox, WEB_MERCATOR_PROJECTION);
  
  		return results;
  	}
docs: Query for feature results in the bounding box
  
  @param webMercatorBoundingBox
  web mercator bounding box
  @return geometry index results