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Posted to users@wicket.apache.org by ping ping <sp...@hotmail.com> on 2009/10/16 10:50:31 UTC

WicketMessage: Error attaching this container for rendering

Can i have some brief explanation on what could have possibly caused this to happen? 
 
 
WicketMessage: Error attaching this container for rendering: [MarkupContainer [Component id = subtree]]
Root cause:
java.lang.NullPointerException
     at wickettree.nested.Subtree$ModelIterator.<init>(Subtree.java:133)
     at wickettree.nested.Subtree$1.getItemModels(Subtree.java:75)
     at org.apache.wicket.markup.repeater.RefreshingView.onPopulate(RefreshingView.java:94)
     at org.apache.wicket.markup.repeater.AbstractRepeater.onBeforeRender(AbstractRepeater.java:131)
     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
     at org.apache.wicket.Component.beforeRender(Component.java:1095)
     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
     at org.apache.wicket.Component.beforeRender(Component.java:1095)
     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
     at org.apache.wicket.Component.beforeRender(Component.java:1095)
     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
     at org.apache.wicket.Component.beforeRender(Component.java:1095)
     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
     at org.apache.wicket.Page.onBeforeRender(Page.java:1501)
     at com.is.web.sam.role.BaseRoleManagementPage.onBeforeRender(BaseRoleManagementPage.java:239)
     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
     at org.apache.wicket.Component.beforeRender(Component.java:1095)
     at org.apache.wicket.Component.prepareForRender(Component.java:2232)
     at org.apache.wicket.Component.prepareForRender(Component.java:2269)
     at org.apache.wicket.Page.renderPage(Page.java:893)
     at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:262)
     at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:105)
     at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1258)
     at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
     at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428)
     at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
     at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:456)
     at com.is.java.common.util.MySecureFilter.doGet(MySecureFilter.java:127)
     at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:289)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
     at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
     at java.lang.Thread.run(Thread.java:595)
Complete stack:
org.apache.wicket.WicketRuntimeException: Error attaching this container for rendering: [MarkupContainer [Component id = subtree]]
     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1763)
     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
     at org.apache.wicket.Component.beforeRender(Component.java:1095)
     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
     at org.apache.wicket.Component.beforeRender(Component.java:1095)
     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
     at org.apache.wicket.Component.beforeRender(Component.java:1095)
     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
     at org.apache.wicket.Page.onBeforeRender(Page.java:1501)
     at com.is.web.sam.role.BaseRoleManagementPage.onBeforeRender(BaseRoleManagementPage.java:239)
     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
     at org.apache.wicket.Component.beforeRender(Component.java:1095)
     at org.apache.wicket.Component.prepareForRender(Component.java:2232)
     at org.apache.wicket.Component.prepareForRender(Component.java:2269)
     at org.apache.wicket.Page.renderPage(Page.java:893)
     at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:262)
     at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:105)
     at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1258)
     at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
     at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428)
     at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
     at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:456)

 		 	   		  
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Re: WicketMessage: Error attaching this container for rendering

Posted by Anton Veretennikov <an...@gmail.com>.
Subtree.java:133 throws java.lang.NullPointerException

-- Tony

On Fri, Oct 16, 2009 at 4:50 PM, ping ping <sp...@hotmail.com> wrote:
>
> Can i have some brief explanation on what could have possibly caused this to happen?
>
>
> WicketMessage: Error attaching this container for rendering: [MarkupContainer [Component id = subtree]]
> Root cause:
> java.lang.NullPointerException
>     at wickettree.nested.Subtree$ModelIterator.<init>(Subtree.java:133)
>     at wickettree.nested.Subtree$1.getItemModels(Subtree.java:75)
>     at org.apache.wicket.markup.repeater.RefreshingView.onPopulate(RefreshingView.java:94)
>     at org.apache.wicket.markup.repeater.AbstractRepeater.onBeforeRender(AbstractRepeater.java:131)
>     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
>     at org.apache.wicket.Component.beforeRender(Component.java:1095)
>     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
>     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
>     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
>     at org.apache.wicket.Component.beforeRender(Component.java:1095)
>     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
>     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
>     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
>     at org.apache.wicket.Component.beforeRender(Component.java:1095)
>     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
>     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
>     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
>     at org.apache.wicket.Component.beforeRender(Component.java:1095)
>     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
>     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
>     at org.apache.wicket.Page.onBeforeRender(Page.java:1501)
>     at com.is.web.sam.role.BaseRoleManagementPage.onBeforeRender(BaseRoleManagementPage.java:239)
>     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
>     at org.apache.wicket.Component.beforeRender(Component.java:1095)
>     at org.apache.wicket.Component.prepareForRender(Component.java:2232)
>     at org.apache.wicket.Component.prepareForRender(Component.java:2269)
>     at org.apache.wicket.Page.renderPage(Page.java:893)
>     at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:262)
>     at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:105)
>     at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1258)
>     at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
>     at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428)
>     at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
>     at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:456)
>     at com.is.java.common.util.MySecureFilter.doGet(MySecureFilter.java:127)
>     at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:289)
>     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>     at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
>     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
>     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
>     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
>     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
>     at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
>     at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
>     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
>     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
>     at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
>     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
>     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
>     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
>     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
>     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:446)
>     at java.lang.Thread.run(Thread.java:595)
> Complete stack:
> org.apache.wicket.WicketRuntimeException: Error attaching this container for rendering: [MarkupContainer [Component id = subtree]]
>     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1763)
>     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
>     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
>     at org.apache.wicket.Component.beforeRender(Component.java:1095)
>     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
>     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
>     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
>     at org.apache.wicket.Component.beforeRender(Component.java:1095)
>     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
>     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
>     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
>     at org.apache.wicket.Component.beforeRender(Component.java:1095)
>     at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1751)
>     at org.apache.wicket.Component.onBeforeRender(Component.java:3863)
>     at org.apache.wicket.Page.onBeforeRender(Page.java:1501)
>     at com.is.web.sam.role.BaseRoleManagementPage.onBeforeRender(BaseRoleManagementPage.java:239)
>     at org.apache.wicket.Component.internalBeforeRender(Component.java:1061)
>     at org.apache.wicket.Component.beforeRender(Component.java:1095)
>     at org.apache.wicket.Component.prepareForRender(Component.java:2232)
>     at org.apache.wicket.Component.prepareForRender(Component.java:2269)
>     at org.apache.wicket.Page.renderPage(Page.java:893)
>     at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:262)
>     at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:105)
>     at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1258)
>     at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
>     at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428)
>     at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
>     at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:456)
>
>
> _________________________________________________________________
> Join the Fantasy Football club and win cash prizes here!
> http://fantasyfootball.malaysia.msn.com

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