Errro in Table Tutorial in CE 7.1 ?

[Former Member]

hi @,

I have migrated Table tutorial given in SDN to CE 7.1 SR5 and its showing no error but when I am deploying it and runnning it is giving exception. I am not able to figure our the error I am getting following exception:

Caused by: java.lang.ClassCastException: class java.lang.String:null incompatible with interface com.sap.dictionary.runtime.IField:library:com.sap.dictionary.runtime com.sap.engine.boot.loader.ResourceMultiParentClassLoader150d5d6alive

at com.sap.tc.webdynpro.progmodel.context.DataAttributeInfo.getStructureField(DataAttributeInfo.java:265)

at com.sap.tc.webdynpro.progmodel.context.DataAttributeInfo.initReferenceAttribute(DataAttributeInfo.java:457)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.initStructureType(NodeInfo.java:1021)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.initAfterCompletedMapping(NodeInfo.java:979)

at com.sap.tc.webdynpro.progmodel.context.MappedNodeInfo.initAfterCompletedMapping(MappedNodeInfo.java:228)

at com.sap.tc.webdynpro.progmodel.context.MappingInfo.initAfterCompletedMapping(MappingInfo.java:176)

at com.sap.tc.webdynpro.progmodel.context.MappingInfo.setDataNode(MappingInfo.java:75)

at com.sap.tc.webdynpro.progmodel.context.MappingInfo.getDataNode(MappingInfo.java:137)

at com.sap.tc.webdynpro.progmodel.context.MappingInfo.init(MappingInfo.java:171)

at com.sap.tc.webdynpro.progmodel.context.MappedNodeInfo.doInit(MappedNodeInfo.java:193)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:925)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:929)

at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:79)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:208)

at com.sap.tc.webdynpro.progmodel.window.ViewManager.getView(ViewManager.java:705)

at com.sap.tc.webdynpro.progmodel.window.ViewManager.bindRoot(ViewManager.java:600)

at com.sap.tc.webdynpro.progmodel.window.ViewManager.init(ViewManager.java:183)

at com.sap.tc.webdynpro.progmodel.window.InterfaceView.manageEmbeddedViewManager(InterfaceView.java:146)

at com.sap.tc.webdynpro.progmodel.window.InterfaceView.initController(InterfaceView.java:56)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:209)

at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.doOpen(WebDynproWindow.java:352)

at com.sap.tc.webdynpro.clientserver.window.ApplicationWindow.show(ApplicationWindow.java:183)

at com.sap.tc.webdynpro.clientserver.window.ApplicationWindow.open(ApplicationWindow.java:178)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:517)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.doPreprocessing(ClientApplication.java:1228)

at com.sap.tc.webdynpro.serverimpl.core.sessionctx.AbstractExecutionContextDispatcher.delegateToApplicationDoPreprocessing(AbstractExecutionContextDispatcher.java:150)

at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.DispatchHandlerForAppPreprocessing.doService(DispatchHandlerForAppPreprocessing.java:35)

at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.AbstractDispatchHandler.service(AbstractDispatchHandler.java:116)

at com.sap.engine.services.servlets_jsp.server.deploy.impl.module.IRequestDispatcherImpl.dispatch(IRequestDispatcherImpl.java:93)

at com.sap.tc.webdynpro.serverimpl.wdc.sessionctx.ExecutionContextDispatcher.dispatchToApplicationDoPreprocessing(ExecutionContextDispatcher.java:100)

at com.sap.tc.webdynpro.serverimpl.core.sessionctx.AbstractExecutionContextDispatcher.dispatch(AbstractExecutionContextDispatcher.java:75)

at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.dispatch(ApplicationSession.java:507)

at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.dispatch(ApplicationSession.java:527)

at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doPreprocessing(ApplicationSession.java:233)

Where and why this exception is coming when my migration is successfull?

REgards

[Former Member · Accepted solution]

Hi,

we are working on it

In the meantime you could undeploy all versions you had deployed and take this version:

[table_final.zip|https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/f06c0940-79ca-2910-14b5-c4de1efd3bf5], which you also can find here: [WEb Dynpro Samples and Tutorials: Creating Tables|/docs/DOC-8061#46].

I tried it myself and after a repair it did run without problems.

kind regards

Stefanie

[Former Member]

Hi BeyondTheObvious,

which tutorial did you download? There are three of them...

Before migrating a tutorial, you should check it for errors, you can resolve in beforehand. Additionally, AFAIK, there is no need to migrate the tutorial, it should run in CE 7.1 after having run a repair.

kind regards

Stefanie

[Former Member]

hi Stefanie,

I had tried with both the tutorials one with initial and the other one which was complete but both give erroors in CE 7.1 SR5.

Regards

[Former Member]

Hi,

Right click on the project and select Repair->Project Structure and ClassPath.

This might resolve your issue.

Regards

Ayyapparaj

[Former Member]

hi Ayyapparaj,

I already tried that multiple times but it is of no use .

REgards