code: public void deleteItem(String itemId) throws NoResponseException, XMPPErrorException, NotConnectedException, InterruptedException {
          Collection<String> items = new ArrayList<>(1);
          items.add(itemId);
          deleteItem(items);
      }
docs: Delete the item with the specified id from the node.
  
  @param itemId The id of the item
  @throws XMPPErrorException
  @throws NoResponseException
  @throws NotConnectedException
  @throws InterruptedException