[WICKET-1780] NPE in feedback panel

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.4
• Fix Version/s: 1.3.5, 1.4-RC1
• Assignee: Martijn Dashorst
• Reporter: Martijn Dashorst
• Created: 07/Aug/08 13:17
• Updated: 08/Aug/08 08:54
• Resolved: 08/Aug/08 08:54

Description

WicketMessage: Error attaching this container for rendering: [MarkupContainer [Component id = feedbackul, page = nl.topicus.tripleapoc.web.pages.deelnemer.intake.IntakeStap1Personalia, path = 11:layLeft:feedback:feedbackul.FeedbackPanel$2, isVisible = true, isVersioned = false]]

Root cause:

java.lang.NullPointerException
at org.apache.wicket.markup.html.panel.FeedbackPanel.newMessageDisplayComponent(FeedbackPanel.java:324)
at org.apache.wicket.markup.html.panel.FeedbackPanel$MessageListView.populateItem(FeedbackPanel.java:88)
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:1003)
at org.apache.wicket.Component.beforeRender(Component.java:1035)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1589)
at org.apache.wicket.Component.onBeforeRender(Component.java:3684)
at org.apache.wicket.Component.internalBeforeRender(Component.java:1003)
at org.apache.wicket.Component.beforeRender(Component.java:1035)
at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1589)
at org.apache.wicket.Component.onBeforeRender(Component.java:3684)
at org.apache.wicket.Component.internalBeforeRender(Component.java:1003)
at org.apache.wicket.Component.prepareForRender(Component.java:2168)
at org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.java:747)
at org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget.java:649)
at org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:564)
at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:104)
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1177)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1248)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1349)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:493)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:387)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:199)