Hi, We noticed this while running our application in an environment where firewall blocks all connections to outside addresses. Adding filterMappingUrlPattern parameter helped.
so for instance helloworld's web.xml (http://wicket.apache.org/learn/examples/helloworld.html) would be something like: <web-app> <display-name>Wicket Examples</display-name> <filter> <filter-name>HelloWorldApplication</filter-name> <filter-class>org.apache.wicket.protocol.http.WicketFilter</filter-class> <init-param> <param-name>applicationClassName</param-name> <param-value>org.apache.wicket.examples.helloworld.HelloWorldApplication</param-value> </init-param> <init-param> <param-name>filterMappingUrlPattern</param-name> <param-value>/*</param-value> </init-param> </filter> <filter-mapping> <filter-name>HelloWorldApplication</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app> Regards, Mikko