Servlet Filter going in infinite loop when FORWARD used in mapping in JSF

Question

I have a filter defined in web.xml like following:-

    AuthenticationFilter
    

        

Answer 1

Theory:

1. Topics.jsp requires validation, so a redirect is made to LogIn.jsf.

2. LogIn.jsf is served by the FacesServlet. But the page that is containg the faces is really a jsp page. So the servlet mades a forward to the LogIn.jsp (the page that builds the component tree).

3. In your filter, the path is LogIn.jsp and you don't validate a request for LogIn.jsp so you ask for authentication and a redirect to LogIn.jsf is made again. Go to step 2.

So if you remove , the forwarding of the FacesServlet from LogIn.jsf to LogIn.jsp doesn't enter in the loop.

Quick solution: Add LogIn.jsp to the list of path infos in your if statement.