Deprecated signal "QDBusConnectionInterface::serviceOwnerChanged"

The user is trying to run 'D-Bus Complex Ping Pong', but she is getting warning

'Connecting to deprecated signal
QDBusConnectionInterface::serviceOwnerChanged(QString,QString,QString). 

Even if this message is harmless, it is still irritating and the example should be somehow fixed.

This code should be changed (complexping.cpp, line 109):

    ping.connect(QDBusConnection::sessionBus().interface(),
                 SIGNAL(serviceOwnerChanged(QString,QString,QString)),
                 SLOT(start(QString,QString,QString)));

This problem can reproduce with the D-Bus Complex Ping Pong example provided with the Qt Creator.