Hello parallel world
Pretty neat. I think this:

Label label = name.isEmpty() ? new Label("Hello user!") : new Label("How's it going, " + name + "?");


Could be neater like this:

Label label = name.isEmpty() 
    ? new Label("Hello user!") 
    : new Label("How's it going, " + name + "?");


Actually... what changes depending on the result name.isEmpty() isn't the label itself, but its content.

String greeting = name.isEmpty()
    ? "Hello user!"
    : "How's it going, " + name + "?";
Label label = new Label(greeting);


I'd probably rename label to greetingLabel, too.