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https://issues.apache.org/jira/browse/WICKET-2651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Igor Vaynberg resolved WICKET-2651.
-----------------------------------
Assignee: Igor Vaynberg
Resolution: Cannot Reproduce
could not repro here using either ie or chrome
http://wicketstuff.org/wicket14/helloworld/?wicket:bookmarkablePage=:org.apache.wicket.devutils.inspector.InspectorPage
> NPE on InspectorPage (devutils)
> -------------------------------
>
> Key: WICKET-2651
> URL: https://issues.apache.org/jira/browse/WICKET-2651
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.4.5
> Reporter: Marat Radchenko
> Assignee: Igor Vaynberg
>
> Steps to reproduce:
> 1. Open InspectorPage
> 2. Press and hold F5.
> Expected: page happily reloads
> Actual: page reloads, but sometimes NPE happens.
> Stacktrace:
> SEVERE: Error attaching this container for rendering: [MarkupContainer
> [Component id = pagemap]]
> org.apache.wicket.WicketRuntimeException: Error attaching this container for
> rendering: [MarkupContainer [Component id = pagemap]]
> at
> org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1739)
> at org.apache.wicket.Component.onBeforeRender(Component.java:3855)
> at
> org.apache.wicket.devutils.DevUtilsPanel.onBeforeRender(DevUtilsPanel.java:43)
> 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:1727)
> at org.apache.wicket.Component.onBeforeRender(Component.java:3855)
> 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:1727)
> at org.apache.wicket.Component.onBeforeRender(Component.java:3855)
> at
> org.apache.wicket.markup.repeater.AbstractRepeater.onBeforeRender(AbstractRepeater.java:151)
> 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:1727)
> at org.apache.wicket.Component.onBeforeRender(Component.java:3855)
> at
> org.apache.wicket.devutils.DevUtilsPanel.onBeforeRender(DevUtilsPanel.java:43)
> 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:1727)
> at org.apache.wicket.Component.onBeforeRender(Component.java:3855)
> at org.apache.wicket.Page.onBeforeRender(Page.java:1501)
> at
> org.apache.wicket.devutils.DevUtilsPage.onBeforeRender(DevUtilsPage.java:71)
> 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:2225)
> at org.apache.wicket.Component.prepareForRender(Component.java:2262)
> at org.apache.wicket.Page.renderPage(Page.java:893)
> at
> org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:261)
> at
> org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:105)
> at
> ru.kctsoft.taro.web.TransactionalRequestCycleProcessor.respond(TransactionalRequestCycleProcessor.java:22)
> at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at
> org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:307)
> at
> org.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
> at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
> at
> org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:106)
> at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
> at
> org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
> at $Proxy42.respond(Unknown Source)
> at
> org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1258)
> at org.apache.wicket.RequestCycle.step(RequestCycle.java:1329)
> at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1428)
> at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
> at
> org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:479)
> at
> org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:312)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
> at
> org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:198)
> at
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
> at
> org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:96)
> at
> org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
> at
> org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:236)
> at
> org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
> at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:418)
> at
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> at
> org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
> at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at org.mortbay.jetty.Server.handle(Server.java:326)
> at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> at
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:923)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:547)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:409)
> at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> Caused by: java.lang.NullPointerException
> at
> org.apache.wicket.devutils.inspector.PageMapView$1.populateItem(PageMapView.java:94)
> at
> org.apache.wicket.markup.html.list.ListView.onPopulate(ListView.java:576)
> 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:1727)
> ... 71 more
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