Redirect to j_spring_security_logout from a Controller in Spring Security 3.1.1

[diminuta]

I have a jsp with a form that has 2 buttons "save" and "close", both call the same method and if I detect that the close button was pressed I should then redirect to Spring Security logout... but when I do that I get a 404 error in tomcat:

Estado HTTP 404 - /SICCO/WEB-INF/jsp/j_spring_security_logout.jsp

type Informe de estado

mensaje /MyWebapp/WEB-INF/jsp/j_spring_security_logout.jsp

descripción El recurso requerido (/MyWebapp/WEB-INF/jsp/j_spring_security_logout.jsp) no está disponible.

the piece of code is:

@RequestMapping("guardar") 
public String guardar(Model model, @ModelAttribute("precol")Precolonoscopia precol, HttpServletRequest request) {

    if (WebUtils.hasSubmitParameter(request, "cerrar")) {
        return "j_spring_security_logout";
    }
        //things...
    return "/other/page";
}

I've also tried with

return "/j_spring_security_logout"

but I got the same error. And also returning ModelAndView instead of String... I got the same result.

I have another jsp that calls directly to Spring Security Logout:

< c:url value="/j_spring_security_logout" var="url" / >
< form action="${url}" method="post">
* * < button name="cerrar">< s:message code="myapp.cerrar"/ >< /button>
< /form>

And this works as expected...

What am I doing wrong?

[diminuta]

I had the answer just in front of me! I asked "how to redirect"... and that was the key...

return "redirect:/j_spring_security_logout"

works