500 Internal Server Error is returned for HTTP request after custom portal application migration

[Former Member]

Hi friends,

We have migrated some custom portal applications from 7.0 to 7.4.

Now the issue here is, when i try to test the applications it is throwing the following error.

500 internal server

Failed to process request.please contact your system administrator.

The below is the log file.

500 Internal Server Error is returned for HTTP request [http://<host>:<port>/webdynpro/resources/xxx~views/xxxApp]:
component [dispatcher],
web module [webdynpro/resources/xxx.com/sap~wd~xxx~views],
application [xxx.com/sap~wd~xxx~views],
DC name [xxx.com/sap~wd~xxx~views],
CSN component[],
problem categorization [],
internal categorization [-1941702466].

[EXCEPTION]
java.lang.NullPointerException: while trying to invoke the method com.xxx.sap.wd.xxx.comp.vcupload.wdp.IPublicVcUploadComp$IZaak_ResultsElement.getEx_Description() of a null object loaded from local variable 'elemResult'
at com.sap.wd.pload.comp.vcload.VcloadComp.populateChoosenCase(VcloadComp.java:368)
at com.sap.wd.pload.comp.vcload.VcloadComp.verifiesCaseNo(VcloadComp.java:299)
at com.sap.wd.pload.comp.vcload.wdp.InternalVcUploadComp.verifiesCaseNo(InternalVcloadComp.java:392)
at com.sap.wd.pload.comp.vcload.ChooseDossierView.moveToNextFromZaPage(ChooseDossierView.java:399)
at com.sap.wd.pload.comp.vcload.ChooseDossierView.onActionSelectZa(ChooseDossierView.java:245)
at com.sap.wd.pload.comp.vcload.wdp.InternalChooseDossierView.wdInvokeEventHandler(InternalChooseDossierView.java:293)
at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:142)
at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:75)
at com.sap.tc.webdynpro.clientserver.phases.ProcessingEventPhase.doHandleActionEvent(ProcessingEventPhase.java:159)
at com.sap.tc.webdynpro.clientserver.phases.ProcessingEventPhase.execute(ProcessingEventPhase.java:94)
at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequestPartly(WindowPhaseModel.java:162)
at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doProcessRequest(WindowPhaseModel.java:110)
at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequest(WindowPhaseModel.java:97)
at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.processRequest(WebDynproWindow.java:515)
at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:58)
at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.doExecute(ClientApplication.java:1671)
at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.doProcessing(ClientApplication.java:1485)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doApplicationProcessingStandalone(ApplicationSession.java:908)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doApplicationProcessing(ApplicationSession.java:880)
at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:357)
at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:326)
at com.sap.tc.webdynpro.serverimpl.core.AbstractDispatcherServlet.doContent(AbstractDispatcherServlet.java:87)
at com.sap.tc.webdynpro.serverimpl.wdc.DispatcherServlet.doContent(DispatcherServlet.java:101)
at com.sap.tc.webdynpro.serverimpl.core.AbstractDispatcherServlet.doPost(AbstractDispatcherServlet.java:62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:754)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:847)
at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:152)
at com.sap.engine.services.servlets_jsp.server.Invokable.invoke(Invokable.java:38)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:466)
at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:210)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:441)
at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:430)
at com.sap.engine.services.servlets_jsp.filters.DSRWebContainerFilter.process(DSRWebContainerFilter.java:38)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.servlets_jsp.filters.ServletSelector.process(ServletSelector.java:81)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.servlets_jsp.filters.ApplicationSelector.process(ApplicationSelector.java:278)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.WebContainerInvoker.process(WebContainerInvoker.java:81)
at com.sap.engine.services.httpserver.chain.HostFilter.process(HostFilter.java:9)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.ResponseLogWriter.process(ResponseLogWriter.java:60)
at com.sap.engine.services.httpserver.chain.HostFilter.process(HostFilter.java:9)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.DefineHostFilter.process(DefineHostFilter.java:27)
at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.MonitoringFilter.process(MonitoringFilter.java:29)
at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.SessionSizeFilter.process(SessionSizeFilter.java:26)
at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.MemoryStatisticFilter.process(MemoryStatisticFilter.java:57)
at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.filters.DSRHttpFilter.process(DSRHttpFilter.java:43)
at com.sap.engine.services.httpserver.chain.ServerFilter.process(ServerFilter.java:12)
at com.sap.engine.services.httpserver.chain.AbstractChain.process(AbstractChain.java:78)
at com.sap.engine.services.httpserver.server.Processor.chainedRequest(Processor.java:475)
at com.sap.engine.services.httpserver.server.Processor$FCAProcessorThread.process(Processor.java:269)
at com.sap.engine.services.httpserver.server.rcm.RequestProcessorThread.run(RequestProcessorThread.java:56)
at com.sap.engine.core.thread.execution.Executable.run(Executable.java:122)
at com.sap.engine.core.thread.execution.Executable.run(Executable.java:101)
at com.sap.engine.core.thread.execution.CentralExecutor$SingleThread.run(CentralExecutor.java:328)

please someone help me on this

[vdurgarao09]

Hi Praveen,

NullPointerException.

Some value you are getting null.

Means check this below line number for VcloadComp.java:368.

java.lang.NullPointerException: while trying to invoke the method com.xxx.sap.wd.xxx.comp.vcupload.wdp.IPublicVcUploadComp$IZaak_ResultsElement.getEx_Description() of a null object loaded from local variable 'elemResult'

at com.sap.wd.pload.comp.vcload.VcloadComp.populateChoosenCase(VcloadComp.java:368)

BR,

Durga Rao.