@NotNull
  private List<TaskActivationEntry> findSelectedTasks() {
    List<TaskActivationEntry> tasks = new SmartList<>();
    for (DefaultMutableTreeNode node : myTree.getSelectedNodes(DefaultMutableTreeNode.class, null)) {
      tasks.addAll(findTasksUnder(ContainerUtil.ar((MyNode)node.getUserObject())));
    }
    return tasks;
  }
@NotNull
  private List<TaskActivationEntry> findSelectedTasks()