Hmm I'm still stuck with a NPE @ List<Node> children = tbody.getChildren(); Which means tbody is null. But why?
org.apache.tapestry5.internal.services.RenderQueueException Render queue error in AfterRender[admin/Page:mygrid]: org.apache.tapestry5.ioc.internal.util.TapestryException java.lang.NullPointerException: mixins.RowEvent.afterRender(RowEvent.java:43) mixins.RowEvent.afterRender(RowEvent.java) org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AfterRenderPhase.invokeComponent(ComponentPageElementImpl.java:375) org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AbstractPhase.invoke(ComponentPageElementImpl.java:143) org.apache.tapestry5.internal.structure.ComponentPageElementImpl$AfterRenderPhase.render(ComponentPageElementImpl.java:385) org.apache.tapestry5.internal.services.RenderQueueImpl.run(RenderQueueImpl.java:72) org.apache.tapestry5.internal.services.PageRenderQueueImpl.render(PageRenderQueueImpl.java:124) $PageRenderQueue_966117cd9015.render(Unknown Source) $PageRenderQueue_966117cd900e.render(Unknown Source) org.apache.tapestry5.internal.services.MarkupRendererTerminator.renderMarkup(MarkupRendererTerminator.java:37) org.apache.tapestry5.beanvalidator.BeanValidatorModule$2.renderMarkup(BeanValidatorModule.java:119) $MarkupRenderer_966117cd9019.renderMarkup(Unknown Source) org.apache.tapestry5.services.TapestryModule$31.renderMarkup(TapestryModule.java:1994) $MarkupRenderer_966117cd9019.renderMarkup(Unknown Source) org.apache.tapestry5.services.TapestryModule$30.renderMarkup(TapestryModule.java:1978) $MarkupRenderer_966117cd9019.renderMarkup(Unknown Source) org.apache.tapestry5.services.TapestryModule$29.renderMarkup(TapestryModule.java:1960) $MarkupRenderer_966117cd9019.renderMarkup(Unknown Source) org.apache.tapestry5.services.TapestryModule$28.renderMarkup(TapestryModule.java:1945) $MarkupRenderer_966117cd9019.renderMarkup(Unknown Source) org.apache.tapestry5.services.TapestryModule$27.renderMarkup(TapestryModule.java:1931) $MarkupRenderer_966117cd9019.renderMarkup(Unknown Source) org.got5.tapestry5.jquery.services.js.JSModule$1.renderMarkup(JSModule.java:40) $MarkupRenderer_966117cd9019.renderMarkup(Unknown Source) org.apache.tapestry5.services.TapestryModule$26.renderMarkup(TapestryModule.java:1913) $MarkupRenderer_966117cd9019.renderMarkup(Unknown Source) org.apache.tapestry5.services.TapestryModule$25.renderMarkup(TapestryModule.java:1894) $MarkupRenderer_966117cd9019.renderMarkup(Unknown Source) $MarkupRenderer_966117cd9014.renderMarkup(Unknown Source) org.apache.tapestry5.internal.services.PageMarkupRendererImpl.renderPageMarkup(PageMarkupRendererImpl.java:47) $PageMarkupRenderer_966117cd9012.renderPageMarkup(Unknown Source) org.apache.tapestry5.internal.services.PageResponseRendererImpl.renderPageResponse(PageResponseRendererImpl.java:67) $PageResponseRenderer_966117cd8fd6.renderPageResponse(Unknown Source) org.apache.tapestry5.internal.services.PageRenderRequestHandlerImpl.handle(PageRenderRequestHandlerImpl.java:64) org.apache.tapestry5.services.TapestryModule$38.handle(TapestryModule.java:2222) $PageRenderRequestHandler_966117cd8fd8.handle(Unknown Source) $PageRenderRequestHandler_966117cd8f8a.handle(Unknown Source) org.apache.tapestry5.internal.services.ComponentRequestHandlerTerminator.handlePageRender(ComponentRequestHandlerTerminator.java:48) org.apache.tapestry5.services.InitializeActivePageName.handlePageRender(InitializeActivePageName.java:47) $ComponentRequestHandler_966117cd8f8b.handlePageRender(Unknown Source) $ComponentRequestFilter_966117cd8f88.handlePageRender(Unknown Source) $ComponentRequestHandler_966117cd8f8b.handlePageRender(Unknown Source) $ComponentRequestHandler_966117cd8f56.handlePageRender(Unknown Source) org.apache.tapestry5.internal.services.PageRenderDispatcher.dispatch(PageRenderDispatcher.java:45) $Dispatcher_966117cd8f59.dispatch(Unknown Source) $Dispatcher_966117cd8f51.dispatch(Unknown Source) org.apache.tapestry5.services.TapestryModule$RequestHandlerTerminator.service(TapestryModule.java:302) org.apache.tapestry5.internal.services.RequestErrorFilter.service(RequestErrorFilter.java:26) $RequestHandler_966117cd8f52.service(Unknown Source) org.apache.tapestry5.services.TapestryModule$3.service(TapestryModule.java:902) $RequestHandler_966117cd8f52.service(Unknown Source) org.apache.tapestry5.services.TapestryModule$2.service(TapestryModule.java:892) $RequestHandler_966117cd8f52.service(Unknown Source) org.apache.tapestry5.internal.services.StaticFilesFilter.service(StaticFilesFilter.java:90) $RequestHandler_966117cd8f52.service(Unknown Source) $RequestFilter_966117cd8f4d.service(Unknown Source) $RequestHandler_966117cd8f52.service(Unknown Source) org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:105) org.apache.tapestry5.internal.services.CheckForUpdatesFilter$2.invoke(CheckForUpdatesFilter.java:95) org.apache.tapestry5.ioc.internal.util.ConcurrentBarrier.withRead(ConcurrentBarrier.java:85) org.apache.tapestry5.internal.services.CheckForUpdatesFilter.service(CheckForUpdatesFilter.java:119) $RequestHandler_966117cd8f52.service(Unknown Source) $RequestHandler_966117cd8f44.service(Unknown Source) org.apache.tapestry5.services.TapestryModule$HttpServletRequestHandlerTerminator.service(TapestryModule.java:253) org.apache.tapestry5.internal.gzip.GZipFilter.service(GZipFilter.java:53) $HttpServletRequestHandler_966117cd8f46.service(Unknown Source) org.apache.tapestry5.upload.internal.services.MultipartServletRequestFilter.service(MultipartServletRequestFilter.java:44) $HttpServletRequestHandler_966117cd8f46.service(Unknown Source) org.got5.tapestry5.jquery.services.AjaxUploadServletRequestFilter.service(AjaxUploadServletRequestFilter.java:26) $HttpServletRequestHandler_966117cd8f46.service(Unknown Source) org.apache.tapestry5.internal.services.IgnoredPathsFilter.service(IgnoredPathsFilter.java:62) $HttpServletRequestFilter_966117cd8f42.service(Unknown Source) $HttpServletRequestHandler_966117cd8f46.service(Unknown Source) org.apache.tapestry5.services.TapestryModule$1.service(TapestryModule.java:852) $HttpServletRequestHandler_966117cd8f46.service(Unknown Source) $HttpServletRequestHandler_966117cd8f3f.service(Unknown Source) org.apache.tapestry5.TapestryFilter.doFilter(TapestryFilter.java:171) org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243) org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210) org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222) org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123) org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45) org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:45) org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472) org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168) org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99) org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929) org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118) org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407) org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002) org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585) org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312) java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110) java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603) java.lang.Thread.run(Thread.java:722) -- View this message in context: 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