@Contract("_ -> new")
  static @NotNull LibraryRootsTreeSpeedSearch installOn(final Tree tree) {
    LibraryRootsTreeSpeedSearch search = new LibraryRootsTreeSpeedSearch(tree);
    search.setupListeners();
    return search;
  }
@Contract("_ -> new")
  static @NotNull LibraryRootsTreeSpeedSearch installOn(final Tree tree)