BeanValidationBinder constructor?

Is there any reason why the BeanValidationBinder only has a constructor with a bean class parameter? If I have a

public class Row {
private BeanValidationBinder binder = // cannot instantiate here

public Row() {
binder // cannot instantate here either without adding a Class parameter because of type erasure(?)

Would there be any side effects just to extend the BVB and add an empty constructor and call super() just like the original implementation does with the class parameter?

Edit: extending will not work since the parameterized constructor in BVB hides the no-arg constructor in Binder :-/