code: public List<DomainBareJid> getLocalServices()
              throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
          ServiceDiscoveryManager sdm = ServiceDiscoveryManager.getInstanceFor(connection());
          return sdm.findServices(MultiUserChatLight.NAMESPACE, false, false);
      }
docs: Returns a collection with the XMPP addresses of the MUC Light services.
  
  @return a collection with the XMPP addresses of the MUC Light services.
  @throws XMPPErrorException
  @throws NoResponseException
  @throws NotConnectedException
  @throws InterruptedException