DispatcherServlet : Random 404 errors (no mapping found)

Hi all,

I have a really basic app which is configured to use container based authentication against an LdapRealm.
This works fine, except that randomly, after a successfull login, the Dispatcher Servlet raises a 404 error telling that no mapping was found. A simple page refresh on the error page solves the problem !
I did many searches and many tests without being able to solve the problem.

My dispatcher servlet is configured as following :

Code:

---

<servlet-mapping>
  <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

---

Now my controller has the following mapping :

Code:

---

@RequestMapping(value = {
            "/",
            "/login"
    })

---

In my web.xml file I set the following auth-constraints :
[CODE]<security-constraint>
<web-resource-collection>
<url-pattern>/*</url-pattern>
</web-resource-collection>[CODE]
Now every two/three logins I have the following error :

Code:

---

14:44:47 |- WARN org.springframework.web.servlet.PageNotFound - No mapping found for HTTP request with URI [/privman/login] in DispatcherServlet with
name 'dispatcherServlet'

---

What is really strange is the composition of the erroneous URL : /privman is the context of my web app.

Thanks for your help