Cast Java classes into user defined class

import java.util.LinkedList;

import java.util.List;

public class CastCollection extends LinkedList<String> {

      private static final long serialVersionUID = 1L;

      public static void main(String[] args) {

            class MyList extends CastCollection {

                  private static final long serialVersionUID = 1L;

            };

            MyList list = new MyList();

            list.add("Yasin");

            if (list instanceof CastCollection) {

                  CastCollection castedObj = (CastCollection) list;

                  System.out.println("Casted succesfully");

                  System.out.println(castedObj.get(0));

            }

      }

}

Output:

Casted succesfully

Yasin