I did so but it's a bit confusing . Is there any book or a tutorial that describes the sequence of calls of the framework ? And how should my code flow ?
On 19 August 2011 17:04, Dan Retzlaff [via Apache Wicket] < ml-node+3755408-1624030309-260...@n4.nabble.com> wrote: > Hi Ahmed, > > I recommend running Wicket in an IDE with a debugger and stepping through > your code. Personally I deploy my Wicket applications into an Apache Tomcat > > server set up within Eclipse. There are many other servlet containers and > IDEs that will work though. > > Dan > > On Fri, Aug 19, 2011 at 1:16 AM, aabfattah < > [hidden email] <http://user/SendEmail.jtp?type=node&node=3755408&i=0>> > wrote: > > > Sorry for posting a lot , I just made a new project to work around the > > problem but now I get an exception and that's seem a *bug from the code* > > > > Unexpected RuntimeException > > > > Last cause: null > > WicketMessage: Error attaching this container for rendering: > > [WebMarkupContainer [Component id = body]] > > > > Stacktrace > > > > Root cause: > > > > java.lang.NullPointerException > > at > > > com.ahmed.task.main3.UserProvider$SortableDataProviderComparator.compare(UserProvider.java:21) > > > at > > > com.ahmed.task.main3.UserProvider$SortableDataProviderComparator.compare(UserProvider.java:1) > > > at java.util.Arrays.mergeSort(Unknown Source) > > at java.util.Arrays.sort(Unknown Source) > > at java.util.Collections.sort(Unknown Source) > > at com.ahmed.task.main3.UserProvider.iterator(UserProvider.java:57) > > at > > > org.apache.wicket.markup.repeater.data.DataViewBase$ModelIterator.<init>(DataViewBase.java:109) > > > at > > > org.apache.wicket.markup.repeater.data.DataViewBase.getItemModels(DataViewBase.java:76) > > > at > > > org.apache.wicket.markup.repeater.AbstractPageableView.getItemModels(AbstractPageableView.java:101) > > > at > > > org.apache.wicket.markup.repeater.RefreshingView.onPopulate(RefreshingView.java:93) > > > at > > > org.apache.wicket.markup.repeater.AbstractRepeater.onBeforeRender(AbstractRepeater.java:119) > > > at > > > org.apache.wicket.markup.repeater.AbstractPageableView.onBeforeRender(AbstractPageableView.java:115) > > > at > > org.apache.wicket.Component.internalBeforeRender(Component.java:1063) > > at org.apache.wicket.Component.beforeRender(Component.java:1097) > > at > > > org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1746) > > > at org.apache.wicket.Component.onBeforeRender(Component.java:3837) > > at > > org.apache.wicket.Component.internalBeforeRender(Component.java:1063) > > at org.apache.wicket.Component.beforeRender(Component.java:1097) > > at > > > org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1746) > > > at org.apache.wicket.Component.onBeforeRender(Component.java:3837) > > at > > org.apache.wicket.Component.internalBeforeRender(Component.java:1063) > > at org.apache.wicket.Component.beforeRender(Component.java:1097) > > at > > > org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1746) > > > at org.apache.wicket.Component.onBeforeRender(Component.java:3837) > > at org.apache.wicket.Page.onBeforeRender(Page.java:848) > > at > > org.apache.wicket.Component.internalBeforeRender(Component.java:1063) > > at org.apache.wicket.Component.beforeRender(Component.java:1097) > > at > > org.apache.wicket.Component.internalPrepareForRender(Component.java:2251) > > > at org.apache.wicket.Page.internalPrepareForRender(Page.java:285) > > at org.apache.wicket.Component.render(Component.java:2338) > > at org.apache.wicket.Page.renderPage(Page.java:1060) > > at > > > org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:105) > > > at > > > org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:219) > > > at > > > org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:139) > > > at > > > org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:717) > > > at > > > org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63) > > > at > > > org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212) > > > at > > > org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253) > > > at > > > org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:160) > > > at > > > org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:216) > > > at > > > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1323) > > > at > > > org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:474) > > at > > > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119) > > > at > > > org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:517) > > at > > > org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) > > > at > > > org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:935) > > > at > > org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:404) > > > at > > > org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:184) > > > at > > > org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:870) > > > at > > > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117) > > > at > > > org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:247) > > > at > > > org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:151) > > > at > > > org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) > > > at org.eclipse.jetty.server.Server.handle(Server.java:346) > > at > > > org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:596) > > > at > > > org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:1051) > > > at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:592) > > at > > org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:214) > > at > > org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:426) > > at > > > org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:520) > > > at > > > org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:40) > > > at > > > org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:528) > > > at java.lang.Thread.run(Unknown Source) > > > > Complete stack: > > > > org.apache.wicket.WicketRuntimeException: Error attaching this > > container for rendering: [WebMarkupContainer [Component id = body]] > > at > > > org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1758) > > > at org.apache.wicket.Component.onBeforeRender(Component.java:3837) > > at > > org.apache.wicket.Component.internalBeforeRender(Component.java:1063) > > at org.apache.wicket.Component.beforeRender(Component.java:1097) > > at > > > org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1746) > > > at org.apache.wicket.Component.onBeforeRender(Component.java:3837) > > at > > org.apache.wicket.Component.internalBeforeRender(Component.java:1063) > > at org.apache.wicket.Component.beforeRender(Component.java:1097) > > at > > > org.apache.wicket.MarkupContainer.onBeforeRenderChildren(MarkupContainer.java:1746) > > > at org.apache.wicket.Component.onBeforeRender(Component.java:3837) > > at org.apache.wicket.Page.onBeforeRender(Page.java:848) > > at > > org.apache.wicket.Component.internalBeforeRender(Component.java:1063) > > at org.apache.wicket.Component.beforeRender(Component.java:1097) > > at > > org.apache.wicket.Component.internalPrepareForRender(Component.java:2251) > > > at org.apache.wicket.Page.internalPrepareForRender(Page.java:285) > > at org.apache.wicket.Component.render(Component.java:2338) > > at org.apache.wicket.Page.renderPage(Page.java:1060) > > at > > > org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:105) > > > at > > > org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:219) > > > at > > > org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:139) > > > at > > > org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:717) > > > at > > > org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63) > > > at > > > org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212) > > > at > > > org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253) > > > at > > > org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:160) > > > > > > > > > On 19 August 2011 09:55, Ahmed Abdelfattah < > > [hidden email] <http://user/SendEmail.jtp?type=node&node=3755408&i=1>> > wrote: > > > > > Hmm.... wait they are different versions . I fixed that but now I get a > > > > compile error ! > > > > > > Failed to execute goal > > > org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile > > > (default-compile) on project mainpage2: Compilation failure > > > [ERROR] Unable to locate the Javac Compiler in: > > > [ERROR] C:\Program Files\Java\jre6\..\lib\tools.jar > > > [ERROR] Please ensure you are using JDK 1.4 or above and > > > [ERROR] not a JRE (the com.sun.tools.javac.Main class is required). > > > [ERROR] In most cases you can change the location of your Java > > > [ERROR] installation by setting the JAVA_HOME environment variable. > > > > > > On 19 August 2011 09:30, Ahmed Abdelfattah < > > > [hidden email] <http://user/SendEmail.jtp?type=node&node=3755408&i=2>> > wrote: > > > > > >> They both have the same version 1.5RC-1 > > >> > > >> On 19 August 2011 03:06, Dan Retzlaff [via Apache Wicket] < > > >> [hidden email] <http://user/SendEmail.jtp?type=node&node=3755408&i=3>> > wrote: > > >> > > >>> It looks like you have multiple versions of the Wicket JARs on your > > >>> classpath. Since that function was removed in > > >>> https://issues.apache.org/jira/browse/WICKET-3702, I'd guess that > your > > >>> extensions JAR is older than your main wicket JAR. > > >>> > > >>> Hope that helps, > > >>> Dan > > >>> > > >>> On Thu, Aug 18, 2011 at 5:47 PM, aabfattah < > > >>> [hidden email] <http://user/SendEmail.jtp?type=node&node=3754040&i=0>> > > > >>> wrote: > > >>> > > >>> > Hello , I copied some code from a tutorial about creating a simple > > >>> > datatable > > >>> > from here > > >>> > > > https://cwiki.apache.org/WICKET/simple-sortable-datatable-example.html > > >>> > > > >>> > Also , I tried the example in repeaters section in wicketstuff > > website > > >>> > > > >>> > But I get the same exact exception in the 2 projects . Can anybody > > help > > >>> as > > >>> > I > > >>> > am new to wicket ? > > >>> > > > >>> > Last cause: > > >>> > > > >>> > > > >>> > > > org.apache.wicket.extensions.markup.html.repeater.data.sort.OrderByBorder.addToBorder([Lorg/apache/wicket/Component;)Lorg/apache/wicket/MarkupContainer; > > > >>> > > >>> > WicketMessage: Can't instantiate page using constructor public > > >>> > foo.DataTablePage() > > >>> > > > >>> > StackTrace: > > >>> > > > >>> > Root cause: > > >>> > > > >>> > java.lang.NoSuchMethodError: > > >>> > > > >>> > > > >>> > > > org.apache.wicket.extensions.markup.html.repeater.data.sort.OrderByBorder.addToBorder([Lorg/apache/wicket/Component;)Lorg/apache/wicket/MarkupContainer; > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.extensions.markup.html.repeater.data.sort.OrderByBorder.<init>(OrderByBorder.java:58) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.extensions.markup.html.repeater.data.sort.OrderByBorder.<init>(OrderByBorder.java:106) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.extensions.markup.html.repeater.data.table.HeadersToolbar$2.<init>(HeadersToolbar.java:115) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.extensions.markup.html.repeater.data.table.HeadersToolbar.newSortableHeader(HeadersToolbar.java:110) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.extensions.markup.html.repeater.data.table.HeadersToolbar.<init>(HeadersToolbar.java:67) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.extensions.markup.html.repeater.data.table.DefaultDataTable.<init>(DefaultDataTable.java:64) > > > >>> > > >>> > at foo.DataTablePage.<init>(DataTablePage.java:22) > > >>> > at java.lang.reflect.Constructor.newInstance(Unknown Source) > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:155) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:59) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:95) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:43) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:107) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:266) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:160) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:105) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:219) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:139) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:717) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:160) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.protocol.http.WicketFilter.doFilter(WicketFilter.java:216) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1323) > > > >>> > > >>> > at > > >>> > > > >>> > > > org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:474) > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119) > > > >>> > > >>> > at > > >>> > > > >>> > > > org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:517) > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:935) > > > >>> > > >>> > at > > >>> > > > >>> > > org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:404) > > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:184) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:870) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:247) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:151) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116) > > > >>> > > >>> > at org.eclipse.jetty.server.Server.handle(Server.java:346) > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:596) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:1051) > > > >>> > > >>> > at > > org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:592) > > >>> > > >>> > at > > >>> > > org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:214) > > >>> > at > > >>> > > > org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:426) > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:520) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:40) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:528) > > > >>> > > >>> > at java.lang.Thread.run(Unknown Source) > > >>> > > > >>> > Complete stack: > > >>> > > > >>> > org.apache.wicket.WicketRuntimeException: Can't instantiate page > > using > > >>> > constructor public foo.DataTablePage() > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:173) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:59) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:95) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:43) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:107) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:266) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:160) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:105) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:219) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:139) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:717) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:160) > > > >>> > > >>> > > > >>> > java.lang.reflect.InvocationTargetException > > >>> > at > sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native > > >>> > Method) > > >>> > at > sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown > > >>> > Source) > > >>> > at java.lang.reflect.Constructor.newInstance(Unknown Source) > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:155) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:59) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:95) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.session.DefaultPageFactory.newPage(DefaultPageFactory.java:43) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.DefaultMapperContext.newPageInstance(DefaultMapperContext.java:107) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:266) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.PageProvider.getPageInstance(PageProvider.java:160) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.render.PageRenderer.getPage(PageRenderer.java:78) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.render.WebPageRenderer.renderPage(WebPageRenderer.java:105) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.render.WebPageRenderer.respond(WebPageRenderer.java:219) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.handler.RenderPageRequestHandler.respond(RenderPageRequestHandler.java:139) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.cycle.RequestCycle$HandlerExecutor.respond(RequestCycle.java:717) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.RequestHandlerStack.execute(RequestHandlerStack.java:63) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.cycle.RequestCycle.processRequest(RequestCycle.java:212) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.request.cycle.RequestCycle.processRequestAndDetach(RequestCycle.java:253) > > > >>> > > >>> > at > > >>> > > > >>> > > > >>> > > > org.apache.wicket.protocol.http.WicketFilter.processRequest(WicketFilter.java:160) > > > >>> > > >>> > > > >>> > -- > > >>> > View this message in context: > > >>> > > > >>> > > > http://apache-wicket.1842946.n4.nabble.com/Unexpected-RuntimeException-when-trying-a-project-with-a-DataTable-tp3754012p3754012.html > > >>> > Sent from the Users forum mailing list archive at Nabble.com. > > >>> > > > >>> > > 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