Strange behaviour with Application State Object

[Argo Vilberg]

hi,


If i create Application State Object wich include another java class as
property

public class User {
    private int id;
    private String firstname;
    private String lastname;
    private String password;
    private String idcode;
    private String contact; // im, etc.
    private String email;
    private String homepage;
    private String lastPage;
    private String lastLastPage;
    private Role role;                  <---- Here is another CLASS



Then sometimes class ROLE has lost after 1-2 minut idle time sometimes, but
not all times.
role has null value.
But class User still excists.

Class User has marked as application State Object. Class Role has not.
But class Role is as variable in class User.


Any commentary?


Argo