Webdynpro Flights Project using JCO Connection

[Former Member]

Im getting the stack trace error like this at the time of running the Flights Application using JCO Connection and other..I followed all the steps that they given in the help...

Kindly send replies to resolve this problem,,

Error stacktrace:

java.lang.NullPointerException

at com.sap.dictionary.runtime.ProviderFactory$PhysicalBackendProviderKey.hashCode(ProviderFactory.java:131)

at java.util.HashMap.hash(HashMap.java:261)

at java.util.HashMap.get(HashMap.java:317)

at com.sap.dictionary.runtime.ProviderFactory.internalGetProvider(ProviderFactory.java:227)

at com.sap.dictionary.runtime.ProviderFactory.getProvider(ProviderFactory.java:178)

at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:53)

at com.sap.dictionary.runtime.DdBroker.getDataType(DdBroker.java:137)

at com.sap.dictionary.runtime.DdBroker.getStructure(DdBroker.java:201)

at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getStructure(DataTypeBroker.java:290)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:743)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:751)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:751)

at com.sap.tc.webdynpro.progmodel.context.Node.init(Node.java:215)

at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:36)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:177)

at com.sap.tc.webdynpro.progmodel.controller.Component.getCustomControllerInternal(Component.java:359)

at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:300)

at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:328)

at com.sap.tc.webdynpro.progmodel.context.MappingInfo.init(MappingInfo.java:132)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:736)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:751)

at com.sap.tc.webdynpro.progmodel.context.Node.init(Node.java:215)

at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:36)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:177)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:513)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.bind(ViewManager.java:371)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:528)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:395)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:113)

at com.sap.tc.webdynpro.progmodel.view.InterfaceView.initController(InterfaceView.java:40)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:178)

at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.displayToplevelComponent(ClientComponent.java:133)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:347)

at com.sap.tc.webdynpro.clientserver.task.Task.createApplication(Task.java:177)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:485)

at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:48)

at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:236)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:137)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:100)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:37)

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:363)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:222)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:323)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:301)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:682)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:220)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:94)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:142)

at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:37)

at com.sap.engine.core.cluster.impl6.session.UnorderedChannel$MessageRunner.run(UnorderedChannel.java:71)

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:100)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:162)

[Former Member]

Hi Kishor,

It looks like there is some problem with the data type that it got it from R3 server.

1. First check Bapi at the R3 server

2. If found okay. Check your messageServer Jco destination properties and test it.