protected void handleLogoutEvent(LogoutEvent event)
    {
        clearUser();
        Authentication auth = (Authentication) event.getSource();
        propertyChangeSupport.firePropertyChange(USER, auth, null);
    }
protected void handleLogoutEvent ( LogoutEvent event ) { clearUser ( ) ; Authentication auth = ( Authentication ) event . getSource ( ) ; propertyChangeSupport . firePropertyChange ( USER , auth , null ) ; }
When a logout occurs, remove all user related information from the
session.

@param event
the logoutEvent that triggered this handler.