The problem is clear:
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$ModelIterator.<init>(DataViewBase.java:109)
Wicket asks your DataProvider for data and your UserProvider fails
with NPE at line 21.
On Fri, Aug 19, 2011 at 6:37 PM, aabfattah
<[email protected]> wrote:
> I did so but it's a bit confusing . Is there any book or a tutorial that
> describes the sequence of calls of the framework ? And how should my code
> flow ?
>
> On 19 August 2011 17:04, Dan Retzlaff [via Apache Wicket] <
> [email protected]> wrote:
>
>> Hi Ahmed,
>>
>> I recommend running Wicket in an IDE with a debugger and stepping through
>> your code. Personally I deploy my Wicket applications into an Apache Tomcat
>>
>> server set up within Eclipse. There are many other servlet containers and
>> IDEs that will work though.
>>
>> Dan
>>
>> On Fri, Aug 19, 2011 at 1:16 AM, aabfattah <
>> [hidden email] <http://user/SendEmail.jtp?type=node&node=3755408&i=0>>
>> wrote:
>>
>> > Sorry for posting a lot , I just made a new project to work around the
>> > problem but now I get an exception and that's seem a *bug from the code*
>> >
>> > Unexpected RuntimeException
>> >
>> > Last cause: null
>> > WicketMessage: Error attaching this container for rendering:
>> > [WebMarkupContainer [Component id = body]]
>> >
>> > Stacktrace
>> >
>> > Root cause:
>> >
>> > java.lang.NullPointerException
>> > at
>> >
>> com.ahmed.task.main3.UserProvider$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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>> > >>> >
>> > >>> >
>> > >>>
>> > >>>
>> > >>> ------------------------------
>> > >>> If you reply to this email, your message will be added to the
>> > >>> discussion below:
>> > >>>
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>> >
>> http://apache-wicket.1842946.n4.nabble.com/Unexpected-RuntimeException-when-trying-a-project-with-a-DataTable-tp3754012p3754040.html
>> > >>> To unsubscribe from Unexpected RuntimeException when trying a
>> project
>> > >>> with a DataTable, click here<
>> >
>> >.
>> > >>>
>> > >>>
>> > >>
>> > >>
>> > >>
>> > >> --
>> > >> Ahmed Abdelfattah
>> > >>
>> > >>
>> > >>
>> > >
>> > >
>> > > --
>> > > Ahmed Abdelfattah
>> > >
>> > >
>> > >
>> >
>> >
>> > --
>> > Ahmed Abdelfattah
>> >
>> >
>> > --
>> > View this message in context:
>> >
>> http://apache-wicket.1842946.n4.nabble.com/Unexpected-RuntimeException-when-trying-a-project-with-a-DataTable-tp3754012p3754584.html
>>
>> > Sent from the Users forum mailing list archive at Nabble.com.
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>>
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>> If you reply to this email, your message will be added to the discussion
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>>
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>>
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>
>
>
> --
> Ahmed Abdelfattah
>
>
> --
> View this message in context:
> http://apache-wicket.1842946.n4.nabble.com/Unexpected-RuntimeException-when-trying-a-project-with-a-DataTable-tp3754012p3755486.html
> Sent from the Users forum mailing list archive at Nabble.com.
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