Smack can not Ping xmpp server automatically in version 4.2.1

I found that Openfire always ping the client after a client session expired every 3 minutes. The reason for it is that the smack 4.2.1 does not ping the server periodically, and causes the session expiration.

How to deal with the problem?
:innocent::disappointed_relieved:

Not sure if this is the ideal way to improve this, but you could attach PingManager to your connection

mConnection = new XMPPTCPConnection(conf);

        mConnection.addConnectionListener(this);

        pingManager = PingManager.getInstanceFor(mConnection);

and periodically ping the server once you are connected ,below is an example on android:

private Timer pingTimer;
    private TimerTask pingTimerTask = new TimerTask() {

        @Override
        public void run() {
            try {
                if(pingManager.pingMyServer())
                {
                    Log.d(TAG,"Ping successful");
                }else {
                    Log.d(TAG,"Ping NOT successful");
                }
            } catch (SmackException.NotConnectedException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }

        }
    };