Smak pubsub creater, add subscriber

Hello sir,

        I am very new to xmpp world. I trying to implement pubsub patern. In my situation the pubsub owner have to subscribe all subscriber. How can i implement this concept. i just tried like, first i logged in "" then i use node.subscribe("") for subscribe subscriber. But it giving invalid JID error. How can i do this. I am trying to do this in java application.

I am waiting…

Best Reards,