@Override
            public void run() {
                try {
                    for (ConnectionMultiplexerSession session : sessionManager.getConnectionMultiplexerSessions()) {
                        session.deliverRawText(" ");
                    }
                }
                catch(Exception e) {
                    Log.error(e.getMessage(), e);
                }
            }
Sets the default secret key that connection managers should present while trying to
establish a new connection.

@param defaultSecret the default secret key that connection managers should present
       while trying to establish a new connection.
xmppserver/src/main/java/org/jivesoftware/openfire/multiplex/ConnectionMultiplexerManager.java