@Override
  public void drop(TreeNode @NotNull [] sourceNodes, @NotNull DataContext dataContext) {
    final List<Module> modules = extractModules(sourceNodes);
    MoveModulesToGroupAction.doMove(modules.toArray(Module.EMPTY_ARRAY), getValue(), null);
  }
@Override
  public void drop(TreeNode @NotNull [] sourceNodes, @NotNull DataContext dataContext)