Null Pointer Exeception

[Former Member]

Hi,

I am calling one Remote function module which is having only one import parameter in my web Dynpro Application.This function module inserts data into R/3.

The folloing Code i have written in wdInit() method of view.

public void wdDoInit()

{

Zuserinfo_Send_Input input = new Zuserinfo_Send_Input ();

wdContext.nodeZuserinfo_Send_Input().bind(input);

input.setUsername(new String());

}

When i am executing this application i am getting error

following error in wdInit() method.

Error stacktrace:

com.sap.tc.webdynpro.services.exceptions.WDTypeNotFoundException: type extern:com.sap.empmodel.types.EmployeeModel:com.sap.empmodel.types.Zdek_Employees could not be loaded: com.sap.dictionary.runtime.DdException:

at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getStructure(DataTypeBroker.java:297)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:753)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:761)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:761)

at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:40)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:199)

at com.sap.tc.webdynpro.progmodel.controller.Component.getCustomControllerInternal(Component.java:433)

at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:371)

at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:400)

at com.sap.tc.webdynpro.progmodel.context.MappingInfo.init(MappingInfo.java:138)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:746)

at com.sap.tc.webdynpro.progmodel.context.NodeInfo.init(NodeInfo.java:761)

at com.sap.tc.webdynpro.progmodel.context.Context.init(Context.java:40)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:199)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:540)

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:134)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:374)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:593)

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

at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:249)

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:385)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:263)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:340)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:318)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:821)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:239)

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

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:147)

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:94)

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

Caused by: com.sap.dictionary.runtime.DdException:

Please help me out for this problem.

[guru_subramanianb]

Hi Alpa,

if your problem is solved then please close this thread and consider to award points suitably.

Regards,

guru

[Former Member]

Hi alpha,

Please do ensure that you have configured the JCO destination settings.This error occurs when at runtime the sytem is not able to find out the dictionary data types.

while configuring JCO destination settings ensure that you have given model data when configuring model data and dictionary meta data for configuring meta data destinations

respectively

Hope this helps you

Regards,

Rohit

[Former Member]

Hi all,

Thanks for your suggetions that really helped me to solve my problem. I have changed my JCO connection so i could execute RFc.

Thanks...

[Former Member]

Hi Alpa

You JCO seems to fine. Guess you might have done changes to the RFC or you might have done some changes to the JCO.

First try reimporting you model and check it. If it is not working then try restarting your J2EE server.

Regards

NagaKishore

[Former Member]

Hi Alpa,

I guess you have not created JCO or not configured SLD.

If these steps are remaining then please go through this link.

First of all configure SLD and then create JCO destinations for your application.

Regards,

Bhavik

[guru_subramanianb]

Also this thread will help you definitely as well.

Regards,

guru

[guru_subramanianb]

Hi Alpa,

Refer this forum post which addresses your query.

Regards,

Guru