Can't get logout to work in Glassfish 3.1

Question

I have tried every way imaginable. Disabled SSO in Glassfish. Put session.invalidate() in a jsp page and redirected. Did a request.invalidate in a jsf backing bean. What should I do? Thanks.

EDIT

This works.

   private String email;

public ViewLines() {


}

@PostConstruct
public void onLoad() {

    Principal principal = FacesContext.getCurrentInstance().getExternalContext().getUserPrincipal();
    email = principal.getName();

    if (email != null) {
        User user = userService.findUserbyEmail(email);

        for (Acl acl : user.getAclList()) {

            if (acl.getAccess().equals("allow")) {
                digPackageLines(acl.getTreeId());
            }
        }
    } else {
        FacesUtils.addFatalMessage("Couldn't find user information from login!");
    }
}  


 @WebServlet(value = "/j_security_logout")
public class LogoutServlet extends HttpServlet {

    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        request.getSession().invalidate();
        response.sendRedirect("index.jsf");
    }
}