@NotNull
  private static Collection<AbstractTreeNode<?>> createFavoriteRoots(Project project,
                                                                     @NotNull Collection<? extends TreeItem<Pair<AbstractUrl, String>>> urls,
                                                                     AbstractTreeNode<?> me) {
    Collection<AbstractTreeNode<?>> result = new ArrayList<>();
    processUrls(project, urls, result, me);
    return result;
  }
@NotNull
  private static Collection<AbstractTreeNode<?>> createFavoriteRoots(Project project,
                                                                     @NotNull Collection<? extends TreeItem<Pair<AbstractUrl, String>>> urls,
                                                                     AbstractTreeNode<?> me)