code: String getRequestUriPath(HttpServerRequest<?> httpRequest) {
          String uri = httpRequest.getUri();
          if (null == uri) {
              return null;
          }
  
          if (null == queryStringDecoder) {
              if (null == channel) {
                  queryStringDecoder = new QueryStringDecoder(uri);
              } else {
                  queryStringDecoder = getOrCreateQueryStringDecoder(httpRequest);
              }
          }
  
          return queryStringDecoder.nettyDecoder().path();
      }
docs: Parses (if not done previously) and returns the path component in the URI.
  
  @param httpRequest HTTP request for which the URI path is to be returned.
  
  @return The path component of the URI (as returned by {@link HttpRequest#getUri()} or {@code null} if the
  URI is null.