getUserPrincipal() retuns null after authentication

[sudarshanreddy]

Hi All,
I am doing authentication using code below

String authenticationType = getServletConfig().getInitParameter("authentication");
 SecurityAssociationHandler handler = new
 SecurityAssociationHandler();
 SimplePrincipal user = new SimplePrincipal(userName);
 handler.setSecurityInfo(user, password.toCharArray());

 LoginContext ctx = new LoginContext(authenticationType, handler);

 ctx.login();

authentication is going fine and even i can retrieve the principles from subject.
But when i am trying to get the UserPrinciple() from servelt it's returning null and even isUserInRole() returning null.

Is i need to do some thing to attach my subject to servlet container..
Any help is appreciated.

Regards,
Sudarshan

[starksm64]

You have to use the web container security model via the web.xml descriptor in order for the servlet security apis to return useful information. Simply doing a JAAS login does not populate the servlet container security context. This is only useful for interacting with other secured resources from within a servlet.