private void sendResultPacket(IQ packet) {
        IQ reply = IQ.createResultIQ(packet);
        reply.setChildElement(packet.getChildElement().createCopy());
        deliver(reply);
    }
Sends an IQ result packet confirming that the operation was successful.

@param packet the original IQ packet.
xmppserver/src/main/java/org/jivesoftware/openfire/multiplex/MultiplexerPacketHandler.java