Sadly no tooltips are shown when using the following code.
Button button = new Button("test");
Tooltip tooltip = new Tooltip(button, TooltipPosition.BOTTOM, TooltipAlignment.LEFT);
tooltip.setManualMode(true);
tooltip.add("Test");
button.addClickListener(event -> tooltip.open());
add(button);
Do I have to configure something on startup? I am using Vaadin 17 with Spring Boot.