docs: private static String convertToAbsoluteUrlIfNeeded(String conduitName,
                                                         String lastURL,
                                                         String newURL,
                                                         Message message) throws IOException {
          if (newURL != null && !newURL.startsWith("http")) {
  
              if (MessageUtils.isTrue(message.getContextualProperty(AUTO_REDIRECT_ALLOW_REL_URI))) {
                  return URI.create(lastURL).resolve(newURL).toString();
              } else {
                  String msg = "Relative Redirect detected on Conduit '"
                      + conduitName + "' on '" + newURL + "'";
                  LOG.log(Level.INFO, msg);
                  throw new IOException(msg);
              }
          } else {
              return newURL;
          }
  
      }