code: public List<Subscription> getSubscriptionsAsOwner() throws NoResponseException, XMPPErrorException,
                      NotConnectedException, InterruptedException {
          return getSubscriptionsAsOwner(null, null);
      }
docs: Get the subscriptions currently associated with this node as owner.
  
  @return List of {@link Subscription}
  @throws XMPPErrorException
  @throws NoResponseException
  @throws NotConnectedException
  @throws InterruptedException
  @see #getSubscriptionsAsOwner(List, Collection)
  @since 4.1