class ZMSImpl implements Authorizer, KeyStore, ZMSHandler {

    String getUserAuthorityExpiryAttr(final String userAuthorityExpiry) {

        // we must have a valid user authority

        if (userAuthority == null) {
            return null;
        }

        if (StringUtil.isEmpty(userAuthorityExpiry)) {
            return null;
        }

        return userAuthorityExpiry;
    }

    public  ZMSImpl();

}