staticfactor6.java

public class Account {
  private final User user;
  private final String id;
  
  public Account(AccountResponse response) {
    id = response.id;
    user = new User(response.userResponse);
  }
}

public class User {
  private final String id;
  private final String name;
  
  public User(UserResponse response) {
    id = response.id;
    name = response.name;
  }
}