<web-app> <servlet></servlet> <servlet-mapping></servlet-mapping> <servlet></servlet> <servlet-mapping></servlet-mapping> <servlet></servlet> <servlet-mapping></servlet-mapping> <!-- ... --> <listener></listener></web-app>

<web-app> <listener></listener> <servlet></servlet> <servlet></servlet> <servlet></servlet> <!-- ... --> <servlet-mapping></servlet-mapping> <servlet-mapping></servlet-mapping> <servlet-mapping></servlet-mapping> <!-- ... --></web-app>

content of element type "web-app" must match "(icon?,display-name?,description?,distributable?,context-param*,filter*,filter-mapping*,listener*,servlet*,servlet-mapping*,session-config?,mime-mapping*,welcome-file-list?,error-page*,taglib*,resource-env-ref*,resource-ref*,security-constraint*,login-config?,security-role*,env-entry*,ejb-ref*,ejb-local-ref*)"

icon (0 or 1 times)display-name (0 or 1 times)description (0 or 1 times)distributable (0 or 1 times)context-param (0 or more times)filter (0 or more times)filter-mapping (0 or more times)listener (0 or more times)servlet (0 or more times)servlet-mapping (0 or more times)session-config (0 or 1 times)mime-mapping (0 or more times)welcome-file-list (0 or 1 times)error-page (0 or more times)taglib (0 or more times)resource-env-ref (0 or more times)resource-ref (0 or more times)security-constraint (0 or more times)login-config (0 or 1 times)security-role (0 or more times)env-entry (0 or more times)ejb-ref (0 or more times)ejb-local-ref (0 or more times)