migrating struts program and having j_security_check problem

I'm working on migrating an application using struts from Sun One App 7 to 8.2.Everything is working with the exeption of a login page that is using j_security_check to authenticate to ldap.When the jsp page is submitted I get a 404 error message that j_security_check is not found. It seems to me that there is another layer of something in 8.2 that was not in 7.0 that is not allowing the application to see or run the j_security_check.The app worked fine on 7.0, so I think I'm looking at an config issue that have not found yet. Has anyone had any experiance with this senerio?

[590 byte] By [texgeek] at [2007-11-26 7:06:59]