I'm trying to prepare some examples to show various FX features when I came across this strange issue. I'm using a javafx.concurrent.Service to populate the items of a ChoiceBox. When I click the ChoiceBox to show the list of choices I only get an empty rectangle with a triangle drawn on top. It's only when I click on the triangle that the ChoiceBox gets redrawn properly. From what I could see in the debugger is that the items are there at the time when I click the ChoiceBox.

{code:title=Example2App.java|borderStyle=solid}
final ChoiceBox<String> choiceBox = new ChoiceBox();
ExampleService service = new ExampleService();
service.setOnSucceeded(new EventHandler<WorkerStateEvent>() {
@Override
public void handle(WorkerStateEvent aEvent) {
ObservableList<String> tempValue = (ObservableList<String>) aEvent.getSource().getValue();
choiceBox.setItems(tempValue);
}
});
service.start();
{code}

(PS: I could also use binding to accomplish this task but unfortunately RT-22449 prevents me from doing so.)