spring-security and jsf

i am developing in JSF a Spring Security application. the login form is fine. however, when i try to retrieve the authentication object, in future code, i always get the 开发者_JAVA技巧authentication pricipal as anonymous.

i try to fetch is like this: Authentication auth = SecurityContextHolder.getContext().getAuthentication();

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HEy!

The problem was that i didn't add to the http in the security