Помогите понять что не так
package com.javarush.task.task21.task2107;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
import java.util.Objects;
/*
Глубокое клонирование карты
*/
public class Solution implements Cloneable {
public static void main(String[] args) {
Solution solution = new Solution();
solution.users.put("Hubert", new User(172, "Hubert"));
solution.users.put("Zapp", new User(41, "Zapp"));
Solution clone = null;
try {
clone = (Solution) solution.clone();
System.out.println(solution);
System.out.println(clone);
System.out.println(solution.users);
System.out.println(clone.users);
} catch (CloneNotSupportedException e) {
e.printStackTrace(System.err);
}
}
public Solution clone()throws CloneNotSupportedException{
Solution solution = new Solution();
for (Map.Entry<String, User> map: users.entrySet()) {
users.put(map.getKey(), map.getValue());
}
return solution;
}
protected Map<String, User> users = new LinkedHashMap();
public static class User implements Cloneable {
int age;
String name;
public User(int age, String name) {
this.age = age;
this.name = name;
}
protected User clone() throws CloneNotSupportedException{
return (User) super.clone();
}
@Override
public boolean equals(Object o) {
if (o == this){
return true;
}
if (o == null || o.getClass() != getClass()){
return false;
}
User user = (User) o;
if (age == user.age & Objects.equals(name, user.name))
{
return true;
}
else{
return false;
}
}
@Override
public int hashCode() {
int result = age;
result = result + 31 * name.hashCode();
return result;
}
}
}