Hi Cemal, The populateItem method is just doing what it is supposed to do for a ListView and nothing fancy. Moreover, my other ListViews are working just fine. I suspect it is the AjaxSelfUpdatingTimerBehavior which is causing the problem, but I don't know exactly the root of it and how to work around with this problem.
Regards, Tony jWeekend wrote: > > tfu, > > What does your populateItem implementation (conveniently dotted out ;-) > look like? > Are you looking for an element (with index = 23) in the ListView's backing > ArrayList that does not (no longer) exist(s). > > Regards - Cemal > http://www.jWeekend.co.uk http://jWeekend.co.uk > > > tfu wrote: >> >> I'm using Wicket 1.3.2 and I got this weird exception. >> >> -- source code >> WebMarkupContainer result = new WebMarkupContainer("result"); >> result.add(new >> AjaxSelfUpdatingTimerBehavior(Duration.seconds(5))); >> ListView view = new ListView("connections", new >> PropertyModel(this, "connections")){...}; >> result.add(view); >> add(result); >> >> -- exception >> >> 2008-08-19 13:46:46,749 ERROR [TP-Processor3] >> org.apache.wicket.RequestCycle - Error attaching this container for >> rendering: [MarkupContainer [Component id = result, page = >> com.xxxx.rss.web.connection.ShowConnection, path = >> 16:panel:result.WebMarkupContainer, isVisible = true, isVersioned = >> false]] >> org.apache.wicket.WicketRuntimeException: Error attaching this container >> for rendering: [MarkupContainer [Component id = result, page = >> com.xxxx.rss.web.connection.ShowConnection, path = >> 16:panel:result.WebMarkupContainer, isVisible = true, isVersioned = >> false]] >> at >> org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1589) >> at >> org.apache.wicket.Component.onBeforeRender(Component.java:3673) >> at >> org.apache.wicket.Component.internalBeforeRender(Component.java:995) >> at org.apache.wicket.Component.beforeRender(Component.java:1027) >> at >> org.apache.wicket.Component.prepareForRender(Component.java:2151) >> at >> org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.java:698) >> at >> org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget.java:605) >> at >> org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:520) >> at >> org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:104) >> at >> org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1172) >> at org.apache.wicket.RequestCycle.step(RequestCycle.java:1243) >> at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1330) >> at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) >> at >> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:358) >> at >> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194) >> at >> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:215) >> at >> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:188) >> at >> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:210) >> at >> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:174) >> at >> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) >> at >> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117) >> at >> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:108) >> at >> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:151) >> at >> org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:200) >> at >> org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283) >> at >> org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:773) >> at >> org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:703) >> at >> org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:895) >> at >> org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:685) >> at java.lang.Thread.run(Thread.java:595) >> Caused by: java.lang.IndexOutOfBoundsException: Index: 23, Size: 23 >> at java.util.ArrayList.RangeCheck(ArrayList.java:547) >> at java.util.ArrayList.get(ArrayList.java:322) >> at >> org.apache.wicket.markup.html.list.ListItemModel.getObject(ListItemModel.java:55) >> at >> org.apache.wicket.Component.getModelObject(Component.java:1551) >> at >> com.xxxx.rss.web.connection.ShowConnectionPanel$1.populateItem(ShowConnectionPanel.java:86) >> at >> org.apache.wicket.markup.html.list.ListView.onPopulate(ListView.java:573) >> at >> org.apache.wicket.markup.repeater.AbstractRepeater.onBeforeRender(AbstractRepeater.java:127) >> at >> org.apache.wicket.Component.internalBeforeRender(Component.java:995) >> at org.apache.wicket.Component.beforeRender(Component.java:1027) >> at >> org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1577) >> ... 29 more >> >> >> Any feedback is highly appreciated >> > > -- View this message in context: http://www.nabble.com/Help-needed---ListView.onPopulate-IndexOutOfBoundsException-tp19058649p19059966.html Sent from the Wicket - 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