[WICKET-3952] NPE while opening hangman in wicket-examples

• Type: Bug
• Status: Resolved
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 1.4.18
• Fix Version/s: 1.4.19
• Component/s: wicket-examples
• Environment: IE9, works fine on Chrome
• Assignee: Pedro Santos
• Reporter: Pedro Santos
• Created: 07/Aug/11 21:54
• Updated: 08/Aug/11 00:00
• Resolved: 08/Aug/11 00:00

Description

org.apache.wicket.WicketRuntimeException: Exception in rendering component: [Component id = word]
at org.apache.wicket.Component.renderComponent(Component.java:2763)
at org.apache.wicket.markup.html.WebComponent.onRender(WebComponent.java:62)
at org.apache.wicket.Component.render(Component.java:2524)
at org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1461)
at org.apache.wicket.MarkupContainer.renderAll(MarkupContainer.java:1575)
at org.apache.wicket.Page.onRender(Page.java:1594)
at org.apache.wicket.Component.render(Component.java:2524)
at org.apache.wicket.Page.renderPage(Page.java:932)
at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:261)
at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:105)
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1260)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1331)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1438)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:546)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:486)
at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:319)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1157)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:388)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:440)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:926)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
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:410)
at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
Caused by: java.lang.NullPointerException
at org.apache.wicket.examples.hangman.Guess$1.getObject(Guess.java:50)
at org.apache.wicket.examples.hangman.Guess$1.getObject(Guess.java:46)
at org.apache.wicket.Component.getDefaultModelObject(Component.java:1727)
at org.apache.wicket.Component.getDefaultModelObjectAsString(Component.java:1746)
at org.apache.wicket.markup.html.basic.Label.onComponentTagBody(Label.java:114)
at org.apache.wicket.Component.renderComponent(Component.java:2724)
... 32 more