public function reset_autoloader() {
    $this->php_autoloader->unregister_autoloader();
    $this->hook_manager->reset();

    // Clear all of the autoloader globals so that older autoloaders don't do anything strange.
    global $jetpack_autoloader_latest_version;
    $jetpack_autoloader_latest_version = null;

    global $jetpack_packages_classmap;
    $jetpack_packages_classmap = array(); // Must be array to avoid exceptions in old autoloaders!

    global $jetpack_packages_psr4;
    $jetpack_packages_psr4 = array(); // Must be array to avoid exceptions in old autoloaders!

    global $jetpack_packages_filemap;
    $jetpack_packages_filemap = array(); // Must be array to avoid exceptions in old autoloaders!
  }