1. run code below
2. push add
3. scroll hor scrollbar all the way to the right
4. push remove
ListView goes white - no items shown
 
public class ScrollableListBroken extends Application {

    ListView list;
    int itemIndex = 0;

    @Override
    public void start(Stage stage) {
        VBox content = new VBox();
        list = new ListView();
        list.getSelectionModel().addChangeListener(ListViewSelectionModel.SELECTED_ITEM,
                new ChangeListener() {

                    public void handle(Bean bean, PropertyReference<?> pr) {
                        System.out.println(pr.get(bean));
                    }
                });
        for (int i = 0; i < 30; i++) {
            list.getItems().add(i);
        }
        Button btnAdd = new Button("Add");
        btnAdd.setOnAction(new EventHandler<ActionEvent>() {

            public void handle(ActionEvent t) {
                StringBuilder builder = new StringBuilder("l");
                for (int i = 0; i < 50; i++) {
                    builder.append("o");
                }
                builder.append("ng item");
                list.getItems().add(0, builder);
            }
        });
        Button btnRemove = new Button("Remove");
        btnRemove.setOnAction(new EventHandler<ActionEvent>() {

            public void handle(ActionEvent t) {
                list.getItems().remove(0);
            }
        });
        HBox buttons = new HBox();
        buttons.getChildren().add(btnAdd);
        buttons.getChildren().add(btnRemove);
        content.getChildren().add(list);
        content.getChildren().add(buttons);
        stage.setScene(new Scene(content));
        stage.setVisible(true);
    }

    public static void main(String[] args) {
        Launcher.launch(ScrollableListBroken.class, args);
    }
}