@Override
  protected String prepareValidUrlInsideJar(String url) {
    //strip path inside jar
    final String jarSeparator = "!/";
    final int localPathEndIdx = url.indexOf(jarSeparator);
    if (localPathEndIdx > -1) {
      return url.substring(0, localPathEndIdx + jarSeparator.length());
    }
    return url;
  }
@Override
  protected String prepareValidUrlInsideJar(String url)