Initialization of List in a JSF Managed bean

Question

I\' have a question about initialization of List in the POJO as it follows the next code:

public class Person {

 //other fields...
 private List

        

Answer 1

In my opinion it would be best to handle that in the constructors. If a default constructor is used, initialize the list in the constructor.

public Person() {
    friends = new ArrayList<>();
}

If a constructor which accepts parameters is used, let the calling class pass in a list.

public Person(ArrayList<> friends) {
    this.friends = friends;//friends
}