@FXML void search() { searching = true; new Thread( () -> { List<Track> tracks = Cache.search(searchText.getText()); tracksView.setPlaceholder(searchPlaceholder); Platform.runLater( () -> { if (tracksView.getItems().size() > 0) { tracksView.scrollTo(0); } tracksView.getItems().clear(); tracksView.getItems().addAll(tracks.toArray()); }); }) .start(); }