AS added at some point another feature called "overlay", which is not the same thing (here, it is a proprietary feature unrelated to any EE spefication

Overlays do not work as expected -------------------------------- Key: JBWEB-279 URL: https://issues.jboss.org/browse/JBWEB-279 Project: JBoss Web Issue Type: Bug Security Level: Public(Everyone can see) Components: Core Affects Versions: JBossWeb-7.2.1.GA Reporter: Mustafa Musaji Assignee: Remy Maucherat Attachments: fix.proposal.txt It is expected that the <overlay> element in jboss-web.xml has the same outcome as the overlay feature in the CLI: https://docs.jboss.org/author/display/AS72/Deployment+Overlays In jboss-web.xml the overlays element is not used to actually overlay existing files but to add files to a deployment. This is confusing and either this should work the same as the CLI or the documentation around the <overlay> element in jboss-web.xml should clearly state this is not the case and that we do not replace artifacts but rather Attached is a proposed patch that fixes this issue.