docs: @Pure
  	public static boolean isWindowsNativeFilename(String filename) {
  		final String fn = extractLocalPath(filename);
  		if (fn == null || fn.length() == 0) {
  			return false;
  		}
  		final Pattern pattern = Pattern.compile(WINDOW_NATIVE_FILENAME_PATTERN);
  		final Matcher matcher = pattern.matcher(fn);
  		return matcher.matches();
  	}