Java Object-Oriented Design and Patterns exercise 7.20

Give two limitations of the approach used in Exercise 7.19

exercise 7.19

Consider the following approach to cloning. Using serialization, save an

object to a stream and read it back. You get a new object that appears to be a clone of the

original, because all of its instance fields are distinct. Implement this approach to clone

employees with a buddy field. Verify that the result is a proper clone.