private static String[] loadManifestClasspath(JarLoader loader) {
    try {
      String classPath = loader.getClassPathManifestAttribute();
      if (classPath != null) {
        String[] urls = classPath.split(" ");
        if (urls.length > 0 && urls[0].startsWith("file:")) {
          return urls;
        }
      }
    }
    catch (Exception ignore) {
    }
    return null;
  }
private static String[] loadManifestClasspath(JarLoader loader)