问替换组件时使Vaadin不滚动

EN

@Override
protected void init(VaadinRequest request) {
    VerticalLayout layout = new VerticalLayout();
    layout.setMargin(true);
    layout.setSpacing(true);
    setContent(layout);

    TextField t1 = new TextField("Big field (1)");
    t1.setWidth("300px");
    t1.setHeight("1000px");
    layout.addComponent(t1);

    TextField t2 = new TextField("Big field (2)");
    t2.setWidth("300px");
    t2.setHeight("1000px");
    layout.addComponent(t2);

    final Component[] toReplace = new Component[] { t2 };

    Button button = new Button("Click Me");
    button.addClickListener(event -> {
        Table t = new Table();
        t.addContainerProperty("Name", String.class, null);
        for (int i = 0; i < 20; i++) {
            t.addItem(new Object[] { "" + i }, i);
        }
        //t.setHeight("200px");

        layout.replaceComponent(toReplace[0], t);
        toReplace[0] = t;
    });
    layout.addComponent(button);

    setContent(layout);
}