*
* @throws rocks.xmpp.core.stanza.model.StanzaException If the entity returned a stanza error.
* @throws rocks.xmpp.core.session.NoResponseException If the entity did not respond.
*/
public void becomeVisible() throws XmppException {
xmppSession.query(new IQ(IQ.Type.SET, new Visible()));
invisible = false;
}