NullPointerException when trying to add an item to the cart

[AnilDandi]

Hi,

When we try to "Add Item" to the cart, the portal system returns "500 Internal Server Error". The detailed exception is:

java.lang.NullPointerException

                at com.sap.mdm.srmcat.uisearch.PickList.loadData(PickList.java:235)

                at com.sap.mdm.srmcat.uisearch.wdp.InternalPickList.loadData(InternalPickList.java:420)

                at com.sap.mdm.srmcat.uisearch.PickList.checkConfig(PickList.java:475)

                at com.sap.mdm.srmcat.uisearch.wdp.InternalPickList.checkConfig(InternalPickList.java:432)

                at com.sap.mdm.srmcat.uisearch.PickListInterface.toRefreshDataFromMaster(PickListInterface.java:205)

                at com.sap.mdm.srmcat.uisearch.wdp.InternalPickListInterface.toRefreshDataFromMaster(InternalPickListInterface.java:358)

                at com.sap.mdm.srmcat.uisearch.wdp.InternalPickListInterface$External.toRefreshDataFromMaster(InternalPickListInterface.java:511)

                at com.sap.mdm.srmcat.uisearch.master.MasterView.onPlugfromLoginViewIN(MasterView.java:393)

                at com.sap.mdm.srmcat.uisearch.master.wdp.InternalMasterView.wdInvokeEventHandler(InternalMasterView.java:260)

                at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87)

                at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.navigate(ClientApplication.java:826)

                at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.navigate(ClientComponent.java:881)

                at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doNavigation(WindowPhaseModel.java:498)

                at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequest(WindowPhaseModel.java:144)

                at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.processRequest(WebDynproWindow.java:335)

                at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:143)

                at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:333)

                at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:741)

                at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:694)

                at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:253)

                at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:185)

                at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:62)

                at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doPost(DispatcherServlet.java:53)

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

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

                at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:401)

                at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)

                at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:386)

                at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:364)

                at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:1064)

                at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:265)

                at com.sap.engine.services.httpserver.server.Client.handle(Client.java:95)

                at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:175)

                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:104)

                at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:176)

Can you help me understand what causes this error and how to troubleshoot?

regards

AKD

[AnilDandi · Accepted solution]

The issue was because of incorrect user ID maintained in SPRO.

Call SPRO and Go to the path SAP Supplier Relationship Management > SRM Server > Master Data > Content Management > Define External Web Services, select the catalog, double-click on "Standard Call Structure" and maintain the correct user ID and passwords (from MDM usermaster).