Simple Java Question

[Former Member]

Hi Experts,

I am getting following run time error message while running a Web Dynpro program:

java.lang.ClassCastException: com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCException: List must contain AbstractList (ProxyList) of Type 'com.sasol.pr.create.Bapimereqitemimp$Bapimereqitemimp_List', not of 'class com.sasol.pr.create.Bapimereqitem$Bapimereqitem_List'!

Detailed error message is:

Web Dynpro Client Type HTML Client

User agent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322; InfoPath.1)

Version null

DOM version null

Client Type msie6

Client Type Profile ie6

ActiveX enabled

Cookies enabled

Frames enabled

Java Applets enabled

JavaScript enabled

Tables enabled

VB Script enabled

Server

Web Dynpro Runtime Vendor: SAP, build ID: 7.0011.20070125102926.0000 (release=645_VAL_REL, buildtime=2007-01-31:20:18:32[UTC], changelist=434634, host=pwdfm101), build date: Thu Apr 12 16:35:25 IST 2007

J2EE Engine No information available

Java VM Java HotSpot(TM) 64-Bit Server VM, version:1.4.2 1.4.2.12-061213-10:06-IA64W IA64W, vendor: Hewlett-Packard Company

Operating system HP-UX, version: B.11.23, architecture: IA64W

Session & Other

Session Locale en_US

Time of Failure Tue Apr 17 14:05:49 IST 2007 (Java Time: 1176798949444)

Web Dynpro Code Generation Infos

local/Pr_Create_16042007_I

SapDictionaryGenerationCore 6.4009.00.0000.20041026131628.0000 (release=630_REL, buildtime=2004-11-02:22:13:11[UTC], changelist=295793, host=PWDFM027.wdf.sap.corp)

SapDictionaryGenerationTemplates (unknown)

SapGenerationFrameworkCore 6.4009.00.0000.20041026132141.0000 (release=630_REL, buildtime=2004-11-02:22:05:28[UTC], changelist=295805, host=PWDFM027.wdf.sap.corp)

SapIdeWebDynproCheckLayer 6.4009.00.0000.20041026133106.0000 (release=630_REL, buildtime=2004-11-02:22:21:59[UTC], changelist=295820, host=PWDFM027.wdf.sap.corp)

SapMetamodelCommon 6.4009.00.0000.20040909194107.0000 (release=630_REL, buildtime=2004-11-02:22:06:42[UTC], changelist=280398, host=PWDFM027.wdf.sap.corp)

SapMetamodelCore 6.4009.00.0000.20040909194107.0000 (release=630_REL, buildtime=2004-11-02:22:06:29[UTC], changelist=280398, host=PWDFM027.wdf.sap.corp)

SapMetamodelDictionary 6.4009.00.0000.20040805191532.0000 (release=630_REL, buildtime=2004-11-02:22:10:20[UTC], changelist=270520, host=PWDFM027.wdf.sap.corp)

SapMetamodelWebDynpro 6.4009.00.0000.20041026132448.0000 (release=630_REL, buildtime=2004-11-02:22:17:25[UTC], changelist=295810, host=PWDFM027.wdf.sap.corp)

SapWebDynproGenerationCTemplates 6.4009.00.0000.20041102105304.0000 (release=630_REL, buildtime=2004-11-02:22:38:28[UTC], changelist=297524, host=PWDFM027)

SapWebDynproGenerationCore 6.4009.00.0000.20041026133106.0000 (release=630_REL, buildtime=2004-11-02:22:22:31[UTC], changelist=295820, host=PWDFM027.wdf.sap.corp)

SapWebDynproGenerationTemplates 6.4009.00.0000.20041102105304.0000 (release=630_REL, buildtime=2004-11-02:22:38:28[UTC], changelist=297524, host=PWDFM027)

sap.com/tc_wddispwda

No information available null

sap.com/tc_wdcorecomp

No information available null

Detailed Error Information

Detailed Exception Chain

java.lang.ClassCastException: com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCException: List must contain AbstractList (ProxyList) of Type 'com.sasol.pr.create.Bapimereqitemimp$Bapimereqitemimp_List', not of 'class com.sasol.pr.create.Bapimereqitem$Bapimereqitem_List'!

at com.sap.tc.webdynpro.modelimpl.dynamicrfc.DynamicRFCModelClass.setRelatedModelObjects(DynamicRFCModelClass.java:807)

at com.sasol.pr.create.Bapi_Pr_Create_Input.setPritem(Bapi_Pr_Create_Input.java:403)

at com.sasol.pr.creation.PrCreationCust.executeBapi_Pr_Create(PrCreationCust.java:215)

at com.sasol.pr.creation.wdp.InternalPrCreationCust.executeBapi_Pr_Create(InternalPrCreationCust.java:240)

at com.sasol.pr.creation.ApplView.onActionSearch(ApplView.java:152)

at com.sasol.pr.creation.wdp.InternalApplView.wdInvokeEventHandler(InternalApplView.java:258)

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

at com.sap.tc.webdynpro.progmodel.controller.Action.fire(Action.java:67)

at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doHandleActionEvent(WindowPhaseModel.java:420)

at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.processRequest(WindowPhaseModel.java:132)

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:299)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:759)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:712)

at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:261)

at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:149)

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:387)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:365)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:944)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:266)

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

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:160)

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:100)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)

Can you please have a look on it and suggest me the solution.

Regards,

RK

[Former Member]

Hai Raveendra,

make sure that

you have

Created Model object and bind this object to rfc node.

give the all mandatory inputs and execute the model.

regards,

Naga

[former_member182372]

Hi Ravinda,

You add to one of your WD RFC Adaptive model relations not instance of com.sasol.pr.create.Bapimereqitemimp$Bapimereqitemimp_List BUT com.sasol.pr.create.Bapimereqitem$Bapimereqitem_List

Check the place where you instanciate your model, establish relations and bind model to model class.

Best regards, Maksim Rashchynski.

[luciano_leitedasilva]

Hi Ravindra,

This erros show that you are doing any mistake in your java code. You are doing any wrong bind and you are getting a run time error.

Can you send the com.sasol.pr.creation.wdp.InternalPrCreationCust.executeBapi_Pr_Create method code to explain?

Regards,

Luciano