docs: public static String resolveUrl(final String baseUrl, final String relativeUrl) {
  		// Parameter check
  		if (baseUrl == null) {
  			throw new IllegalArgumentException("Base URL must not be null");
  		}
  		if (relativeUrl == null) {
  			throw new IllegalArgumentException("Relative URL must not be null");
  		}
  		final Url url = resolveUrl(parseUrl(baseUrl.trim()), relativeUrl.trim());
  
  		return url.toString();
  	}