code: public void enqueueURL(VisitState visitState, final ByteArrayList url) throws IOException {
  		final byte[] urlBuffer = url.elements();
  		final int pathQueryStart = BURL.startOfpathAndQuery(urlBuffer);
  		byteArrayDiskQueues.enqueue(visitState,  urlBuffer, pathQueryStart, url.size() - pathQueryStart);
  	}
docs: Enqueues the given URL as a path+query associated to the scheme+authority of the given visit state.
  
  @param visitState the visitState to which the URL must be added.
  @param url a {@link BURL BUbiNG URL}.
  @throws IOException