About Question enthuware.jwpv6.2.880 :
Posted: Tue Nov 06, 2012 1:36 am
Just a note: for 1st option explanation
It may be configured via annotations, too.Using ServletContextAttributeListener for application scope, HttpSessionAttributeListener for session scope. A new javax.servlet.ServletRequestAttributeListener has been added in the API for request scope. It is configured in web.xml.