Envers not write in my property Object audit table

[immutable]

Hello every one Im new in java dev world and now I have work with Envers. I need to get auditeds for some entity and show history of changes of it. But I have one problem now if some one help me I will be very very happy.

So this is my problem

public class PenaltyProtocol implements Serializable {

    private int version;

    private static final long serialVersionUID = -4664181510953690387L;

    private int id = -1;

    private PenaltyVehicle penaltyVehicle = null;

    private Employee driver = null;

    private Employee operator = null;

    private Employee polliceOfficer = null;
}

and My Employee class looks like this:

@Audited

public class Employee implements Serializable{

    private static final long serialVersionUID = 6759169667298660750L;

    private int id = -1;

    private Position position = null;

    private String fullName = null;

    private String isValid = null;

    }

I have table for PenaltyProtocol and when I change it and save it the changes are afected in my PenaltyProtocolAuditTable but when I change Employee and save PenaltyProtocol the changes are saved in PenaltyProtocolTable but they do not saved in EmployeeAuditTable???
Can some one help me with this problem. What is wrong?

                    <prop key="hibernate.ejb.event.post-insert">org.hibernate.ejb.event.EJB3PostInsertEventListener,org.hibernate.envers.event.AuditEventListener</prop>

                    <prop key="hibernate.ejb.event.post-update">org.hibernate.ejb.event.EJB3PostUpdateEventListener,org.hibernate.envers.event.AuditEventListener</prop>

                    <prop key="hibernate.ejb.event.post-delete">org.hibernate.ejb.event.EJB3PostDeleteEventListener,org.hibernate.envers.event.AuditEventListener</prop>

                    <prop key="hibernate.ejb.event.pre-collection-update">org.hibernate.envers.event.AuditEventListener</prop>

                    <prop key="hibernate.ejb.event.pre-collection-remove">org.hibernate.envers.event.AuditEventListener</prop>

                    <prop key="hibernate.ejb.event.post-collection-recreate">org.hibernate.envers.event.AuditEventListener</prop>

                <prop key="org.hibernate.envers.default_schema">audit</prop>

                <prop key="org.hibernate.envers.audit_table_prefix">v_</prop>

                <prop key="org.hibernate.envers.audit_table_suffix"></prop>

                <prop key="org.hibernate.envers.revision_field_name">rev</prop>

                <!-- <prop key = "hibernate.hbm2ddl.auto">create</prop> --> <!-- auto create table if do not exist -->

                <!-- <prop key="org.hibernate.envers.global_with_modified_flag">true</prop> -->

This is my envers settings in my database.xml

[immutable]

I find the problem what is it, but I have some other problem that I need to slove. The problem with writing in Employee table is becouse I actualy do not change the employee object I just set new object in my PenaltyProtocol and write the new Id in the first table.