Hi Servoy,
Our application runs without problems in Servoy 7 in the Smart & Web clients. The same code in Servoy 8 causes “internal error” in the Web Client when trying to show most of our TABLE_VIEW forms. The grid form shows briefly just as a blank page with a label “Loading…” and then the Web Client crashes with the Internal Error. In the application server log we get the following errors:
org.apache.wicket.WicketRuntimeException: Exception in rendering component: [MarkupContainer [Component id = 0]]
at org.apache.wicket.Component.renderComponent(Component.java:2764)
at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1559)
at org.apache.wicket.Component.render(Component.java:2525)
at org.apache.wicket.markup.html.list.ListView.renderItem(ListView.java:624)
at org.apache.wicket.markup.html.list.ListView.renderChild(ListView.java:612)
at org.apache.wicket.markup.repeater.AbstractRepeater.onRender(AbstractRepeater.java:103)
at org.apache.wicket.Component.render(Component.java:2525)
at org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1461)
at org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1624)
at org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1548)
at org.apache.wicket.Component.renderComponent(Component.java:2725)
at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1559)
at org.apache.wicket.Component.render(Component.java:2525)
at org.apache.wicket.MarkupContainer.renderNext(MarkupContainer.java:1461)
at org.apache.wicket.MarkupContainer.renderComponentTagBody(MarkupContainer.java:1624)
at org.apache.wicket.MarkupContainer.onComponentTagBody(MarkupContainer.java:1548)
at org.apache.wicket.Component.renderComponent(Component.java:2725)
at org.apache.wicket.MarkupContainer.onRender(MarkupContainer.java:1559)
at com.servoy.j2db.server.headlessclient.dataui.WebCellBasedView.onRender(WebCellBasedView.java:2984)
at org.apache.wicket.Component.render(Component.java:2525)
at org.apache.wicket.Component.renderComponent(Component.java:2666)
at org.apache.wicket.ajax.AjaxRequestTarget.respondComponent(AjaxRequestTarget.java:876)
at org.apache.wicket.ajax.AjaxRequestTarget.respondComponents(AjaxRequestTarget.java:680)
at org.apache.wicket.ajax.AjaxRequestTarget.respond(AjaxRequestTarget.java:590)
at org.apache.wicket.request.AbstractRequestCycleProcessor.respond(AbstractRequestCycleProcessor.java:105)
at com.servoy.j2db.server.headlessclient.WebClientsApplication$8.respond(WebClientsApplication.java:717)
at org.apache.wicket.RequestCycle.processEventsAndRespond(RequestCycle.java:1287)
at org.apache.wicket.RequestCycle.step(RequestCycle.java:1358)
at org.apache.wicket.RequestCycle.steps(RequestCycle.java:1465)
at org.apache.wicket.RequestCycle.request(RequestCycle.java:545)
at org.apache.wicket.protocol.http.WicketFilter.doGet(WicketFilter.java:486)
at com.servoy.j2db.server.servlets.Zu.doGet(Zu.java:14)
at org.apache.wicket.protocol.http.WicketServlet.doGet(WicketServlet.java:138)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:618)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:291)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.servoy.j2db.server.ngclient.startup.resourceprovider.ResourceProvider.doFilter(ResourceProvider.java:306)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.servoy.eclipse.designer.rfb.startup.EditorContentFilter.doFilter(EditorContentFilter.java:103)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:217)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:142)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:79)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:616)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:518)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1091)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:673)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1500)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1456)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException: can't find the element for the header componet: [MarkupContainer [Component id = sv__E671501A_6510_4BCE_BA83_B6E9BAD9FF37]]
at com.servoy.j2db.server.headlessclient.dataui.WebCellBasedView$ReorderableListItem.renderColumnCell(WebCellBasedView.java:1449)
at com.servoy.j2db.server.headlessclient.dataui.WebCellBasedView$ReorderableListItem._renderNext(WebCellBasedView.java:1381)
at com.servoy.j2db.server.headlessclient.dataui.WebCellBasedView$ReorderableListItem.renderReorderableTagBody(WebCellBasedView.java:1344)
at com.servoy.j2db.server.headlessclient.dataui.WebCellBasedView$ReorderableListItem.onComponentTagBody(WebCellBasedView.java:1296)
at org.apache.wicket.Component.renderComponent(Component.java:2725)
... 61 more
What is causing this and how can we fix it? Is this a bug in the Servoy 8 web client?