*
     * @param session the session to check
     * @return true if the session is expired
     */
    protected boolean isExpired(final ChatSession session) {
        final int timeoutMinutes = getSessionTimeoutMinutes();
        final LocalDateTime expirationTime = session.getLastAccessedAt().plusMinutes(timeoutMinutes);
        return LocalDateTime.now().isAfter(expirationTime);
    }

    /**