EAP 7 includes a new Web Session Clustering implementation, which uses same config elements (in jboss-web.xml) as in EAP 6, but with different meaning. Some EAP 6 elements are discarded too. The user should be aware of that if the app contains such config.

See https://docs.jboss.org/author/display/WFLY10/How+do+I+migrate+my+application+from+AS7+to+WildFly#HowdoImigratemyapplicationfromAS7toWildFly-WebSessionClustering

When: web app with a jboss-web.xml descriptor, uses web session clustering config XML elements
Perform: warn the user about the config changes in EAP 7 Web Session Clustering.