Runtime Error: NoClassDefFoundError

[Former Member]

Hi All,

My WebDynpro project compiles cleanly in NWDS 2.0.11 but I get a runtime error.

I looked up the forums and there are a lot of posts complaining about the same. It was suggested that possible mismatch between NWDS version and Application server Patch level could be one of the reasons. I use NWDS version 2.0.11 and WAS 6.40 SP11. No mismatch there.

Can somebody explain me this runtime error?

Error StackTrace:

com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to create delegate for view org.jabil.customer.ListProjects. (Hint: Is the corresponding DC deployed correctly? Does the DC contain the component?)

at com.sap.tc.webdynpro.progmodel.generation.ControllerHelper.createDelegate(ControllerHelper.java:110)

at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.<init>(DelegatingView.java:41)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.createUninitializedView(ViewManager.java:487)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:524)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:422)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:130)

at com.sap.tc.webdynpro.progmodel.view.InterfaceView.initController(InterfaceView.java:41)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)

at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.displayToplevelComponent(ClientComponent.java:135)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:392)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:608)

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

at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:248)

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.doGet(DispatcherServlet.java:48)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:390)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)

at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:33)

at com.sap.engine.core.cluster.impl6.session.MessageRunner.run(MessageRunner.java:41)

at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)

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

at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:95)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:160)

Caused by: java.lang.reflect.InvocationTargetException

at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)

at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39)

at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27)

at java.lang.reflect.Constructor.newInstance(Constructor.java:274)

at com.sap.tc.webdynpro.progmodel.generation.ControllerHelper.createDelegate(ControllerHelper.java:74)

... 31 more

Caused by: java.lang.NoClassDefFoundError: com/sapportals/wcm/repository/ResourceException

at org.jabil.customer.wdp.InternalListProjects.<init>(InternalListProjects.java:107)

... 36 more

[vijayakhanna_raman · Accepted solution]

Hi Vamsee,

Check with the weblog for External libraries.

Weblog External libraries:https://www.sdn.sap.com/irj/sdn/weblogs?blog=/pub/wlg/2361. [original link is broken] [original link is broken] [original link is broken] [original link is broken] [original link is broken] [original link is broken] [original link is broken] [original link is broken] [original link is broken]

If u want more informations about the jar files check with this link

JAR class finder:

http://www.alphaworks.ibm.com/tech/jarclassfinder

http://sourceforge.net/projects/classlocator

Regards,

Vijayakhanna Raman

[Former Member]

Are you using an external jar? There was a bug in SP 11 where you had to set the the fact that your jar is used at run time and compile time separately. You had to set the run time link and then exit out fo that screen. You then had to go back in and set the second parameter.

[Former Member]

Eric,

Yes, I am using external jars. Where do u have more documentation about this bug?

My guess is it has to do more with mismatch between compiled versions and runtime versions available on WAS 6.40. I will take a look at that bug and get back to u if it solved my problem.

Thanks,

Vamshi

[Former Member]

Check in the forum. I'll look around and edit my message once I find it.