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Former Member
Oct 18, 2006 at 09:50 AM

ClassCastException: TableColumn

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Hi,

I have a table in my webdynpro. During the rendering of the screen sometimes a ClassCastExcpetion occurs. The strange thing is that this doesn't happen all the time!! We do exactly the same steps in our application, sometimes it works, sometimes it does not.

the table is always empty, because the user should fill it in... maybe it's about different sessions that are open i don't know. any ideas?

thx in advance,

Kristof

java.lang.ClassCastException: com.sap.tc.webdynpro.clientserver.uielib.standard.impl.TableColumn

at com.sap.tc.webdynpro.clientserver.uielib.standard.impl.Label.resolvedText(Label.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.uielib.standard.uradapter.LabelAdapter.getText(LabelAdapter.java(Inlined Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.LabelRenderer.render(LabelRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.MatrixLayoutRenderer.renderMatrixLayoutCellFragment(MatrixLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.MatrixLayoutRenderer.renderMatrixLayoutRowFragment(MatrixLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.MatrixLayoutRenderer.renderMatrixLayoutFragment(MatrixLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.MatrixLayoutRenderer.render(MatrixLayoutRenderer.java:71)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GroupRenderer.renderGroupFragment(GroupRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GroupRenderer.render(GroupRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutCellFragment(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutRowFragment(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutFragment(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.render(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GroupRenderer.renderGroupFragment(GroupRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GroupRenderer.render(GroupRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutCellFragment(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutRowFragment(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutFragment(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.render(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.renderScrollContainerFragment(ScrollContainerRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.render(ScrollContainerRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutCellFragment(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutRowFragment(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.renderGridLayoutFragment(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.GridLayoutRenderer.render(GridLayoutRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.renderScrollContainerFragment(ScrollContainerRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.ie6.ScrollContainerRenderer.render(ScrollContainerRenderer.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.UiWindowRenderer.render(UiWindowRenderer.java:131)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.UiWindowRenderer.render(UiWindowRenderer.java:179)

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.renderer.uielements.base.AbstractRenderManager.render(AbstractRenderManager.java(Inlined Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendHtml(HtmlClient.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendResponse(HtmlClient.java(Compiled Code))

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.sendResponse(HtmlClient.java:256)

at com.sap.tc.webdynpro.clientimpl.html.client.HtmlClient.retrieveData(HtmlClient.java:158)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:425)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:649)

at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59)

at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:249)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:55)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)

at javax.servlet.http.HttpServlet.service(HttpServlet.java(Compiled Code))

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java(Compiled Code))

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java(Compiled Code))

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java(Inlined Compiled Code))

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java(Compiled Code))

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java(Compiled Code))

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java(Compiled Code))

at com.sap.engine.services.httpserver.server.Client.handle(Client.java(Inlined Compiled Code))

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java(Compiled Code))

at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java(Compiled Code))

at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java(Compiled Code))

at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java(Compiled Code))

at java.security.AccessController.doPrivileged1(Native Method)

at java.security.AccessController.doPrivileged(AccessController.java(Compiled Code))

at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java(Compiled Code))

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java(Compiled Code))