It sorts the first time (false first) and then that's it, the triangle keeps on changing but no sort occurs



List<Boolean> data = new ArrayList(10);
        for (int i = 0; i < 10; i++) {
            data.add(new Boolean(i % 2 == 0));
        }
        TableView<Boolean> tv = new TableView<Boolean>();
        tv.getItems().setAll(data);

        TableColumn tc0 = new TableColumn("Parent");
        tv.getColumns().add(tc0);

        TableColumn<Boolean, Boolean> tc1 = new TableColumn<Boolean, Boolean>("Col1");
        tc1.setCellValueFactory(new Callback<CellDataFeatures<Boolean, Boolean>, ObservableValue<Boolean>>() {
            @Override
            public ObservableValue<Boolean> call(
                    CellDataFeatures<Boolean, Boolean> param) {
                return new ReadOnlyObjectWrapper<>(param.getValue());
            }
        });
        tc0.getColumns().add(tc1);

        TableColumn<Boolean, Boolean> tc2 = new TableColumn<Boolean, Boolean>("Col2");
        tc2.setCellValueFactory(new Callback<CellDataFeatures<Boolean, Boolean>, ObservableValue<Boolean>>() {
            @Override
            public ObservableValue<Boolean> call(
                    CellDataFeatures<Boolean, Boolean> param) {
                return new ReadOnlyObjectWrapper<>(param.getValue());
            }
        });
        tc0.getColumns().add(tc2);



        Scene scene = new Scene(tv, 300, 250);

        primaryStage.setTitle("Hello World!");
        primaryStage.setScene(scene);
        primaryStage.show();