I have the follwing web.xml for an application.
The <cookie-config>
is introduced in Servlet 3.0 and not supported in older versions such as 2.5. Your web.xml
is declared conform Servlet 2.5.
You've 2 options:
Redeclare web.xml
conform Servlet 3.0 (which implicitly also requires a Servlet 3.0 compatible target container such as Tomcat 7, Glassfish 3, WebLogic 12, etc).
If you can't upgrade, then forget it and solve it using a custom servlet filter or container-specific configuration (e.g. a Valve
in Tomcat/JBoss; can't answer off top of head for WebLogic as I've never really used it, consider asking a new question for that part).