Problem with the getUserPrincipal() method.

[tosenthu]

My users are authenticated by the database user login module of JAAS. the problem is getUserPrincipal() call in a JSP is not returning the user name. it returns null for authenticated user. what might be the problem.

Thanks in advance,
Senthil Kumar M Rangasamy

[starksm64]

Unless the jsp page is secured, getUserPrincipal() will return null. That is the only time the caller is authenticated and is associated with the request. If you want to track a user as part of a session you have to put the principal in the session.