MailboxManager.getInstance().shutdown();
    public static synchronized void shutdown() throws ServiceException {        if (!sInited)            return;        sInited = false;                RedoLogProvider redoLog = RedoLogProvider.getInstance();        if (!redoLog.isSlave()) {            LmtpServer.shutdownLmtpServer();            Pop3Server.shutdownPop3Servers();            ImapServer.shutdownImapServers();            OzNotificationServer.shutdown();        }                ZimbraIM.shutdown();        SessionCache.shutdown();                MailboxIndex.shutdown();        IMRouter.getInstance().shutdown();        redoLog.shutdown();        StoreManager.getInstance().shutdown();        ExtensionUtil.destroyAll();                MailboxManager.getInstance().shutdown();        sTimer.cancel();    }