I see how this can happen ... I guess org.apache.wicket.serialize.java.JavaSerializer.serialize(Object) returns null and logs an exception with message: Error serializing object " + object.getClass() + " [object=" + object + "]"
please create a ticket On Wed, Sep 21, 2011 at 7:11 PM, Martin A <wml...@gmail.com> wrote: > Hello, guys, > > I encounter a strange error in my wicket logs. I don't have any idea what > the reason may be. Would you give some hints? > I have a simple WebApplication subclass with nothing special in it. > > Thank you! > > Here's the stacktrace > > 20-09-2011 16:46:44,875 ERROR > org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify:105 > - Error detaching request cycle listener: > org.apache.wicket.Application$2@b45ad3d > java.lang.IllegalArgumentException: Argument 'data' may not be null. > at org.apache.wicket.util.lang.Args.notNull(Args.java:39) > at > org.apache.wicket.pageStore.AsynchronousDataStore$Entry.<init>(AsynchronousDataStore.java:271) > at > org.apache.wicket.pageStore.AsynchronousDataStore.storeData(AsynchronousDataStore.java:215) > at > org.apache.wicket.pageStore.DefaultPageStore.storePageData(DefaultPageStore.java:115) > at > org.apache.wicket.pageStore.DefaultPageStore.storePage(DefaultPageStore.java:144) > at > org.apache.wicket.page.PageStoreManager$PersistentRequestAdapter.storeTouchedPages(PageStoreManager.java:377) > at > org.apache.wicket.page.RequestAdapter.commitRequest(RequestAdapter.java:171) > at > org.apache.wicket.page.AbstractPageManager.commitRequest(AbstractPageManager.java:94) > at > org.apache.wicket.page.PageManagerDecorator.commitRequest(PageManagerDecorator.java:68) > at > org.apache.wicket.page.PageAccessSynchronizer$2.commitRequest(PageAccessSynchronizer.java:213) > at org.apache.wicket.Application$2.onDetach(Application.java:1552) > at > org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:101) > at > org.apache.wicket.request.cycle.RequestCycleListenerCollection$3.notify(RequestCycleListenerCollection.java:97) > at > org.apache.wicket.util.listener.ListenerCollection.reversedNotify(ListenerCollection.java:121) > at > org.apache.wicket.util.listener.ListenerCollection.reversedNotify(ListenerCollection.java:112) > at > org.apache.wicket.request.cycle.RequestCycleListenerCollection.onDetach(RequestCycleListenerCollection.java:95) > at > org.apache.wicket.request.cycle.RequestCycle.onDetach(RequestCycle.java:542) > at > org.apache.wicket.request.cycle.RequestCycle.detach(RequestCycle.java:481) > at > org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:257) > at > org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:162) > at > org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:218) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:185) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:151) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100) > at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) > at > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:405) > at > org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:269) > at > org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:515) > at > org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:302) > at > java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886) > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908) > at java.lang.Thread.run(Thread.java:662) > -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org