public TodoItemNode getLastPointerForElement(Object element) {
    if (element instanceof TodoItemNode) {
      return (TodoItemNode)element;
    }
    else {
      Object[] children = getTodoTreeStructure().getChildElements(element);
      if (children.length == 0) {
        return null;
      }
      Object firstChild = children[children.length - 1];
      if (firstChild instanceof TodoItemNode) {
        return (TodoItemNode)firstChild;
      }
      else {
        return getLastPointerForElement(firstChild);
      }
    }
  }
public TodoItemNode getLastPointerForElement(Object element)