private List<MyNode> removeFromModel(final TreePath[] paths) {
      List<MyNode> nodes = ContainerUtil.mapNotNull(paths, path -> {
        Object node = path.getLastPathComponent();
        return node instanceof MyNode ? (MyNode)node : null;
      });
      MultiMap<RemoveConfigurableHandler, MyNode> grouped = groupNodes(nodes);

      List<MyNode> removedNodes = new ArrayList<>();
      for (Map.Entry<RemoveConfigurableHandler, Collection<MyNode>> entry : grouped.entrySet()) {
        //noinspection unchecked
        boolean removed = entry.getKey().remove(getEditableObjects(entry.getValue()));
        if (removed) {
          removedNodes.addAll(entry.getValue());
        }
      }
      return removedNodes;
    }
private List<MyNode> removeFromModel(final TreePath[] paths)