/** Try to make this user a super-user */
  private void tryToMakeAdmin(User u) throws IOException {
    WwpassIdentity p = u.getProperty(WwpassIdentity.class);
    p.activate();
    u.save();
    AuthorizationStrategy as = Jenkins.getInstance().getAuthorizationStrategy();

    for (PermissionAdder adder : Jenkins.getInstance().getExtensionList(PermissionAdder.class)) {
      if (adder.add(as, u, Jenkins.ADMINISTER)) {
        return;
      }
    }
    LOGGER.severe(
        "Admin permission wasn't added for user: "******", ID: " + u.getId());
  }