Custom advertisement discovery solution?

I remote publish a custom adv that I created using the wiki tutorial. In the
public netPeerGroup the discovery of this advertisement is impossible. After
creating a private net peer group and registering the type of my custom
advertisement using:

class ChatAdv extends Advertisement
{
	static
	{
net.jxta.document.AdvertisementFactory.registerAdvertisementInstance(getAdver
tisementType(),new ChatAdv.Instantiator());
	}
...
}

by creating a "dummy" instance of the ChatAdv in my rendezvous peer, I was
able to discover my custom advertisement. Waiting for comments.

Giorgis Georgakoudis