how to debug Wicket Application
Hi , I am new in wicket. I try to modify wicket in action examples and got such exception: WicketMessage: Error attaching this container for rendering: [MarkupContainer [Component id = content, page = wicket.in.action.chapter03.section_3_1.dbdiscounts.web.Index, path = 1:discounts:content.DiscountsList, isVisible = true, isVersioned = true]] Root cause: java.lang.NullPointerException at wicket.in.action.chapter03.section_3_1.dbdiscounts.web.DiscountsList$1.getItemModels(DiscountsList.java:32) at org.apache.wicket.markup.repeater.RefreshingView.onPopulate(RefreshingView.java:104) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) at org.apache.wicket.Page.onBeforeRender(Page.java:1402) 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:2139) at org.apache.wicket.Page.renderPage(Page.java:870) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:231) at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:103) at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1172) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316) at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354) at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:324) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:829) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) Complete stack: org.apache.wicket.WicketRuntimeException: Error attaching this container for rendering: [MarkupContainer [Component id = content, page = wicket.in.action.chapter03.section_3_1.dbdiscounts.web.Index, path = 1:discounts:content.DiscountsList, isVisible = true, isVersioned = true]] at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1525) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) at org.apache.wicket.Component.internalBeforeRender(Component.java:995) at
Re: how to debug Wicket Application
You can start by setting a breakpoint and running the application in debug mode. -Matej On Wed, Aug 19, 2009 at 7:39 PM, Oleg Ruchovetsoruchov...@gmail.com wrote: Hi , I am new in wicket. I try to modify wicket in action examples and got such exception: WicketMessage: Error attaching this container for rendering: [MarkupContainer [Component id = content, page = wicket.in.action.chapter03.section_3_1.dbdiscounts.web.Index, path = 1:discounts:content.DiscountsList, isVisible = true, isVersioned = true]] Root cause: java.lang.NullPointerException at wicket.in.action.chapter03.section_3_1.dbdiscounts.web.DiscountsList$1.getItemModels(DiscountsList.java:32) at org.apache.wicket.markup.repeater.RefreshingView.onPopulate(RefreshingView.java:104) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) at org.apache.wicket.Page.onBeforeRender(Page.java:1402) 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:2139) at org.apache.wicket.Page.renderPage(Page.java:870) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:231) at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:103) at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1172) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316) at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354) at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:324) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:829) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) Complete stack: org.apache.wicket.WicketRuntimeException: Error attaching this container for rendering: [MarkupContainer [Component id = content, page = wicket.in.action.chapter03.section_3_1.dbdiscounts.web.Index, path = 1:discounts:content.DiscountsList, isVisible = true, isVersioned = true]] at org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1525) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) at org.apache.wicket.Component.internalBeforeRender(Component.java:995) at org.apache.wicket.Component.beforeRender(Component.java:1027) at
Re: how to debug Wicket Application
Ok , thank you for quick responce. I am using eclipse and run my application on jetty web server. How can I configure application to be in debug mode? I mean what kind of configuration should I do? On Wed, Aug 19, 2009 at 8:41 PM, Matej Knopp matej.kn...@gmail.com wrote: You can start by setting a breakpoint and running the application in debug mode. -Matej On Wed, Aug 19, 2009 at 7:39 PM, Oleg Ruchovetsoruchov...@gmail.com wrote: Hi , I am new in wicket. I try to modify wicket in action examples and got such exception: WicketMessage: Error attaching this container for rendering: [MarkupContainer [Component id = content, page = wicket.in.action.chapter03.section_3_1.dbdiscounts.web.Index, path = 1:discounts:content.DiscountsList, isVisible = true, isVersioned = true]] Root cause: java.lang.NullPointerException at wicket.in.action.chapter03.section_3_1.dbdiscounts.web.DiscountsList$1.getItemModels(DiscountsList.java:32) at org.apache.wicket.markup.repeater.RefreshingView.onPopulate(RefreshingView.java:104) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) at org.apache.wicket.Page.onBeforeRender(Page.java:1402) 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:2139) at org.apache.wicket.Page.renderPage(Page.java:870) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:231) at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:103) at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1172) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316) at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354) at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:324) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:829) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395) at org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488) Complete stack: org.apache.wicket.WicketRuntimeException: Error attaching this container for rendering: [MarkupContainer [Component id = content, page =
Re: how to debug Wicket Application
Use the Start.java that came with the Wicket quickstart to start Jetty. From Eclipse, just choose to debug as - java application rather than run as. This will put it in debug mode and you can set breakpoints, etc. -- Jeremy Thomerson http://www.wickettraining.com On Wed, Aug 19, 2009 at 12:45 PM, Oleg Ruchovetsoruchov...@gmail.com wrote: Ok , thank you for quick responce. I am using eclipse and run my application on jetty web server. How can I configure application to be in debug mode? I mean what kind of configuration should I do? On Wed, Aug 19, 2009 at 8:41 PM, Matej Knopp matej.kn...@gmail.com wrote: You can start by setting a breakpoint and running the application in debug mode. -Matej On Wed, Aug 19, 2009 at 7:39 PM, Oleg Ruchovetsoruchov...@gmail.com wrote: Hi , I am new in wicket. I try to modify wicket in action examples and got such exception: WicketMessage: Error attaching this container for rendering: [MarkupContainer [Component id = content, page = wicket.in.action.chapter03.section_3_1.dbdiscounts.web.Index, path = 1:discounts:content.DiscountsList, isVisible = true, isVersioned = true]] Root cause: java.lang.NullPointerException at wicket.in.action.chapter03.section_3_1.dbdiscounts.web.DiscountsList$1.getItemModels(DiscountsList.java:32) at org.apache.wicket.markup.repeater.RefreshingView.onPopulate(RefreshingView.java:104) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) 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:1513) at org.apache.wicket.Component.onBeforeRender(Component.java:3657) at org.apache.wicket.Page.onBeforeRender(Page.java:1402) 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:2139) at org.apache.wicket.Page.renderPage(Page.java:870) at org.apache.wicket.request.target.component.BookmarkablePageRequestTarget.respond(BookmarkablePageRequestTarget.java:231) at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:103) at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1172) at org.apache.wicket.RequestCycle.step(RequestCycle.java:1241) at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1316) at org.apache.wicket.RequestCycle.request(RequestCycle.java:493) at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:354) at org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:194) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.springframework.orm.hibernate3.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:174) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:77) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206) at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152) at org.mortbay.jetty.Server.handle(Server.java:324) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505) at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:829) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380) at
