Converting a List to a List (or any class that extends Number)

Question

I want to create a very generic utility method to take any Collection and convert it into a Collection of a user selectable class that extends from Number (Long, Double, Flo

Answer 1

Looks good to me.

Since you have the Class token, why not avoid the unchecked cast and thus suppress warnings?

retVal = clazz.cast(Double.valueOf(from));