class constructors in Xtend

I'm trying out Xtend. Is it possible to make constructors? It seems so simple, but I'm getting an error when I try something like this:

class Scope extends Rect {

    public Scope(){
        super()
    }

}

Constructors are defined by overloading a new() method:

class MyClass extends AnotherClass {
  new(String s) {
    super(s)
  }

  new() {
    this("default")
  }
}

look here