throw new MissingNodeException("Could not get value from element");
throw new MissingNodeException("Could not get value from element (path=" + xpath + ")");
		public String getInstanceValue(Element element) throws MissingNodeException {			Node node = element.selectSingleNode(xpath);			if (node == null)				throw new MissingNodeException("Could not get value from element");			return node.getText();		}