Clone complex object

ClonePerson2

import java.util.Date;

public class ClonePerson2 implements Cloneable{
 
    private String name;
    private Date dob;
 
    public ClonePerson2(String name, Date dob) {
        this.name = name;
        this.dob = dob;
    }
 
    public String getName() {
        return name;
    }

    public Date getDob() {
        return dob;
    }
	
    public ClonePerson2 clone() {
        ClonePerson2 p;
        try {
            p = (ClonePerson2) super.clone();
            p.dob = (Date) dob.clone();
            return p;
        } catch (CloneNotSupportedException e) {
                        e.printStackTrace();
            throw new RuntimeException();
        }
    }
	
    public static void main(String[] args) {
        ClonePerson2 p = new ClonePerson2("Sam", new Date());
        System.out.println(p.getName());
		System.out.println(p.getDob());		

		try {
			Thread.sleep(2000);                 //1000 milliseconds is one second.
		} catch(InterruptedException ex) {
			Thread.currentThread().interrupt();
		}		
		
        ClonePerson2 pClone = p.clone();
				
        System.out.println(pClone.getName());
	System.out.println(pClone.getDob());
    }
}