code: public void start() {
  		firstObject = true;
  		featureCollection = null;
  		currentFeature = null;
  		currentPoint = null;
  
  		geoJSON = null;
  		currentFeatureGeoJSON = null;
  		currentGeometryGeoJSON = null;
  
  		if (writerContentHandler != null)
  			this.geoJSON = writerContentHandler.startFeatureCollection();
  		featureCollection = contentHandler.startFeatureCollection();
  		this.currentFeatureType = this.service.getFeatureTypes().get(this.service.getType());
  	}
docs: Calls {@link JPEContentHandler#startFeatureCollection()} of both
  {@link JPEContentHandler} registered