The application’s deployment descriptor catalogs the servlets, JSPs, and files contained in the application, as well as the properties of each. The descriptor must be formatted in XML, using the DTD specified in the Java Servlet Specification Version 2.4. You can create a descriptor using a J2EE-compliant development tool. For backwards compatibility EAServer also supports Java Servlet Specification Version 2.3.
J2EE properties defined in the deployment descriptor are stored in the web.xml file and any user configuration is stored in the Repository. When you import a Web application from a WAR file, the XML descriptor is converted to format recognized by the repository. If you make any changes to the web.xml file, you must then redeploy the Web application to EAServer for the changes to take effect. You cannot make changes directly from the Web console.