URGENT: JCO.Client: null

Hello
We're using SAP EP 7.0 with webdynpro connected to SAP R3 4.6C by SapLogon Ticket.
The connection can be done with certificates for our customers (authentification header) or via logon/password for internal test on our LAN.
These webdynpro work fine on the LAN but when we connect via the web we have the error below :
com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Error connecting using JCO.Client: null
Do you have any idea ?
It's on our production environment so very urgent )
Thanks

Hi
1.May be JCO's are not configured properly.Check your JCO's are up and running by pinging it in ContentAdmin->WebDynpro.
2. its a simple problem of connection pooling. In your JCO connection settings change the maximum connections to 200. It will work.it is good After you execute the Model please release the connection. The reason you are getting this JCO Client null is because the connection is not getting released.
When you say the following code
wdContext.current<BAPI_INPUT>.modelObject().execute();
//Get the reference to the model and release the connection
If your Model name is say "MO_Mymodel" then
MO_Mymodel model = (MO_Mymodel) WDModelFactory.getModelInstance(MO_Mymodel.class);
model.disconnectIfAlive();
This should release your connections. Also ensure you release the connections even if there is a exception :).
Please refer the below forum also:
Error connection using JCO.Client :null
JCO.Client: null
com.sap.mw.jco.JCO$Exception: (102) JCO_ERROR_COMMUNICATION: JCO.Client not
Thanks
susmita

Similar Messages

Error in Connecting to BAPI (Error connecting using JCO.Client: null)

Hi,
    I am trying to connect to a BAPI to extract data. However, I am getting this error
    Error connecting using JCO.Client: null
    Pls explain the meaning of the error and solution to the problem
TIA
Himanshu

Hi,
This means you are getting error while executing your model. its not able to use the JCO's.
as I asked previously check your JCO status... its up and running????
Here are some threads having same problem
URGENT :Error connecting using JCO.Client: null
Model and MetaData configarations in JCO Connection
Exception while executing
PradeeP
Edited by: pradeep bondla on Jul 31, 2008 11:53 AM

Error connecting using JCO.Client: null

Hi,
I created a WD app which uses the RFC FM. I followed How-To-build-webdynpro.pdf document to create the WD and trying to deploy and run, I see the view page but when I trigger the action via button UI element I get following error as exception in the try catch block of execute method
In the NWA I see
Could not create JCOClientConnection for logical System: 'WD_MODELDATA_DEST' - Model
An exception has occurred: Erorr accessing cache [region]='XCM_SESSION_SCOPE'.
[EXCEPTION]
com.sap.isa.core.cache.Cache$Exception: Cannot return access for region 'XCM_SESSION_SCOPE'. Cache is not ready
I'm using following existing JCO definition by configuring them with correct parameters. Tested them successfully
WD_RFC_METADATA_DEST
WD_MODELDATA_DEST
What am I missing? In SM04 tcode I see 2 connections are opened with 2 Megabyte not released for a long time. I think if connections are released correctly it should drop to 1 megabyte. Is there anything that I need to do just after execute method as shown below (I have replaced function module with <FM> in below code)
try {
         wdContext.node<FM>_Input().current<FM>_Get_InputElement().modelObject().execute();
     } catch(Exception exception) {
          msgMgr.reportException(exception.getLocalizedMessage(), false);
      wdContext.nodeOutput().invalidate();
      msgMgr.reportSuccess("Success");
The error is in the catch block which is displayed on the view page.
Thanks
Praveen
I modified the above code and put in finally block to close the connections as follows, please let me know if this is OK. I still get error message as "Error connecting using JCO.Client: null" but no additional connections in the SM04 after adding finally block.
try {
         wdContext.node<FM>_Input().current<FM>_Get_InputElement().modelObject().execute();
     } catch(Exception exception) {
          msgMgr.reportException(exception.getLocalizedMessage(), false);
     }finally {
          // disconnect the connection
          wdContext.<FM>_Get_InputElement().modelObject().modelInstance().disconnectIfAlive();
Edited by: Praveen11 on Oct 5, 2009 9:06 AM

Thanks Satish.
The issue is resolved. I think it was to do with permission, as I was running directly from NWDS deploy and run the session didn't have proper authorisation or something that was causing this error.
When I copy pasted the URL in the correct browser session window I got no error and function module was successfully executed.   However the issue now is that values are not showing up in the view may be to do with mapping context or model I'll review and post back as different thread.
Thanks
Praveen

Error connection using JCO.Client :null

Hi,
I have small doubt in JCO connection, can any one help me.
In WebDynpro application some time we are getting exception like Error connection using JCO.client : null.
Connection :200 we are maintained in JCO configuration.
If I call one RFC useing JCO it will created a session or connection to ECC server, because we are getting exception in server too many sessions to ECC server.
Write now we are not using any code to close the connection like.
SaveModel svModel = (SaveModel)WDModelFactory.getModelInstance(SaveModel.class);
svModel.disconnectIfAlive();
If we use the above code it will close the connection or sessions.
Is it recommended to write the code in every RFC calls or in final block of all RFC calls ?
Regards,
Satya.

Hi Satya
/message/1944647#1944647 [original link is broken]
/message/8499#8499 [original link is broken]
Please go through this link.Hope it will be helpful for you
Regards
Ruturaj

JCO.Client: null

Hi,
When and why does this occur and how to resolve this?
Exception: Exception: com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Error connecting using JCO.Client: null
Thanks
Sumathi

Hi Sumathi,
Hope u have properly configured the SLD and already done the CIM object generation.
If not ,
refer this forum ..
Re: getting a BAPI from an R/3 system
i have already discussed the step - by step configuration of SLD in this forum .
The same problem is discussed in this forum . refer this forum.
Error connecting JCO.Client
Regards
Kishor Gopinathan

WDDynamicRFCExecuteException: Error connecting using JCO.Client: null

Hi
This is a common problem,I have seen many threads , but following them did not solve my problem.
I have the JCOs tested successful from WD Admin. When I create a sample WDJ application with RFC model and deploy it to the server, I get
Exception:com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecution: Error connecting using JCO.Client: null.
I have checked my binding , I have only one input parameter and the code is
      wdComponentAPI.getMessageManager().reportSuccess("Inside wdInit in Component ctrller");
      Z_Plm44_Obsoleteimpactanalysis_Input input = new Z_Plm44_Obsoleteimpactanalysis_Input();
     wdContext.nodeZ_Plm_Input().bind(input);
     wdContext.createZ_Plm_InputElement(input).setV_Type(wdContext.currentZ_Plm_InputElement().getV_Type());
Also I have implemented closing the connection
disconnectifalive
I contacted the basis team... they tell me that everything is fine from their end. they have tried increasing the JCO connection pools.
Thanks for your help in advance
Karthika

Hi Karthika
Check this pdf and try to catch WDDynamicRFCExecution in catch block.
Please put your code in try catch and also import com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecution in your code;
http://www.sappro.com/downloads/WebDynproJava.pdf
Re: User has no RFC authorization for function group.
Hope this will help you.
thanks
Arun Jaiswal

Error connecting using JCO.Client: null in xRPM in EP

Hi Friends,
I am getting the following error in xRPM through EP
"Error connecting using JCO.Client: null"
I can't enter xRPM, but I can enter other Business packages iViews.
The problem is intermittant and user specific.
Can you pls provide any input on this ?
thanks in advance and warm regards
Purnendu

Hi Flavio,
Thanks for your reply.
The user is created both in the backend as well as in portal.
The roles are also ok.
The error I am getting only while accessing xRPM iViews.
If I restart the instance the error is removed. But it reappears again may be after few days.
This error is intermittant.
May be it is related to the Maximum Number of JCo connections in the WebDynpro configuration.
But I don't have much idea on that.
Can you pls provide any help on this.
Warm regards
Purnendu

Error connection using JCO.Client

Hello all,
I got the following problem <b>"Error connection using JCO.Client"</b> and don't know what's wrong. All connections works at the content administration when I test the connection.
Can anyone help me please?
Best regards
Petra

Hi,
I almost tested the JCO connection with the 'test' button successfully at the content administrator. I tested again and it still works. And I have a stand alone webdynpro application (no portal).
Now I got the following error message after completing the coding with 'e.printStackTrace().'.
<i>
"Error connection using JCO.Client:null"
"[Ljava.lang.StackTraceElement:@60db08"
"Could not create JCOClientConnection for logical System:WD_MODELDATA_DEST - Model: class impersonalaccout.intro.model.Z_Fh0002_Datenverwaltung.Please assure that you have configured the RFC connections and/or logical System"
"com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCException:Error connection using JCO.Client:null"
"com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCException: Could not create JCOClientConnection for logical System: WD_MODELDATA_DEST - Model:class impersonalaccout.intro.model.Z_Fh0002_Datenveraltung.Please ***"</i>
Can anyone explaine me what's wrong?
Bye
Petra

DynamicRFCException with JCO.client problem

Hi,
Iam trying to execute an RFC from webdynpro.Iam getting the following error.So as a result i dont get any result as expected on my screen as the RFC is not getting executed due to JCO problem.Please kindly let me know the reason.In the last line of the exception it talks about user authentication.I dont have any idea whats the reason.This happens as soon as my bapi execute statement in my controller is executed.
could not create JCOClientConnection for logical System: WD_MODELDATA_DEST - Model: class com.test.Getmodel. Please assure that you have configured the RFC connections and/or logical system name properly for this model!
com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Error connecting using JCO.Client: null at com.sap.tc.webdynpro.modelimpl.dynamicrfc.DynamicRFCModel.prepareExecute(DynamicRFCModel.java:179) at com.test.Getmodel.bapi_Ben_Bus3029_Get_Evt_List(Getmodel.java:141) at com.test.Bapi_Ben_Bus3029_Get_Evt_List_Input.doExecute(Bapi_Ben_Bus3029_Get_Evt_List_Input.java:137) at com.sap.tc.webdynpro.modelimpl.dynamicrfc.DynamicRFCModelClassExecutable.execute(DynamicRFCModelClassExecutable.java:92) at com.avid.benefits.Benefitscust.executebapi(Benefitscust.java:128) at com.avid.benefits.wdp.InternalBenefitscust.executebapi(InternalBenefitscust.java:162) at com.avid.benefits.AvidusbenefitsView.wdDoInit(AvidusbenefitsView.java:97) at com.avid.benefits.wdp.InternalAvidusbenefitsView.wdDoInit(InternalAvidusbenefitsView.java:129) at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.doInit(DelegatingView.java:61) at com.sap.tc.webdynpro.progmodel.controller.Controller.initController(Controller.java:215) at com.sap.tc.webdynpro.progmodel.view.View.initController(View.java:445) at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200) at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:709) at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:579) at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:155) at com.sap.tc.webdynpro.clientserver.window.WebDynproWindow.doOpen(WebDynproWindow.java:295) at com.sap.tc.webdynpro.clientserver.window.ApplicationWindow.show(ApplicationWindow.java:183) at com.sap.tc.webdynpro.clientserver.window.ApplicationWindow.open(ApplicationWindow.java:178) at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:364) at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.initApplication(ApplicationSession.java:756) at com.sap.tc.webdynpro.clientserver.session.ApplicationSession.doProcessing(ApplicationSession.java:291) at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:713) at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:666) at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:250) 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.doGet(DispatcherServlet.java:46) 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: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:1039) 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:102) at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172) Caused by: com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCException: Could not create JCOClientConnection for logical System: WD_MODELDATA_DEST - Model: class com.test.Getmodel. Please assure that you have configured the RFC connections and/or logical system name properly for this model! at com.sap.tc.webdynpro.modelimpl.dynamicrfc.AiiModel.getCurrentlyUsedJcoClient(AiiModel.java:210) at com.sap.tc.webdynpro.modelimpl.dynamicrfc.DynamicRFCModel.prepareExecute(DynamicRFCModel.java:170) ... 42 more Caused by: com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscapeException: Error while obtaining JCO connection. at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:152) at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.getJCOClientConnection(WDSystemLandscape.java:30) at com.sap.tc.webdynpro.modelimpl.dynamicrfc.AiiModel.getCurrentlyUsedJcoClient(AiiModel.java:189) ... 43 more Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve connection parameter for 'WD_MODELDATA_DEST' at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestination(JCOClientConnection.java:649) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:476) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:233) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:218) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.<init>(JCOClientConnection.java:129) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:150) ... 45 more Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: User not authenticated - unable to establish JCO connection with SSO. at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestination(JCOClientConnection.java:584) ... 50 more
Error connecting using JCO.Client: null
Error connecting using JCO.Client: null: Could not create JCOClientConnection for logical System: WD_MODELDATA_DEST - Model: class com.test.Getmodel. Please assure that you have configured the RFC connections and/or logical system name properly for this model!: Error while obtaining JCO connection.: Failed to resolve connection parameter for 'WD_MODELDATA_DEST': User not authenticated - unable to establish JCO connection with SSO.

Hi Swathi,
The problem may be with JCo destinations. If you have authorization in Portal, navigate to Content Administration -> Web Dynpro.
In the left side you can see deployed web dynpro applications. Check in local, sap, or any of your custom namespace. Browse & select to your application. Right side you can see JCo destinations for your application. If they are in green color , means they are created. If not, ask your basis team to create them. If they are n green color, ping and test them. if they are working fine or not.
If they are fine, try to deploy after you have logged into the portal.
Regards,
Siva

Error connecting JCO.Client

Hello!
I've got a little problem with Adaptive RFC calls: After exactly 10 times executing my call I always get the following Exception:
com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Error connecting using JCO.Client: null
Has anybody by any chance got an idea why or how to handle this problem?
Thank you very much in advance!
Best Regards

Hi
Well its a simple problem of connection pooling. In your JCO connection settings change the maximum connections to 200. It will work.
well what i would advice is that After you execute the Model please release the connection. The reason you are getting this JCO Client null is because the connection is not getting released.
When you say the following code
wdContext.current<BAPI_INPUT>.modelObject().execute();
//Get the reference to the model and release the connection
If your Model name is say "MO_Mymodel"
then
MO_Mymodel model = (MO_Mymodel) WDModelFactory.getModelInstance(MO_Mymodel.class);
model.disconnectIfAlive();
This should release your connections. Also ensure you release the connections even if there is a exception :).
Hope that helps you.
regards
ravi

Jco connection :null

Hi sap gurus
I am using rfc connection for executing bapi using some jco connections. but if the jco are being used for one time it is being executed . but when we deploy application another time . the exception is received as dynamicrfcexecution error jco connection:null.
when we change the poolsize it is being . the rfc is executed for only one time.
please suggest a way to close jco connections . if already present.
Thanks & Regards
prasad

hi , logon mechanism while creating the JCO Destinations.
Is Logon Ticket
This is code what iam using for rfc access
Zhr_Emp_List_Input input = new Zhr_Emp_List_Input();
          wdContext.nodeZhr_Emp_List_Input().bind(input);
     wdContext.nodeZhr_Emp_List_Input().currentZhr_Emp_List_InputElement().setPernr("10" );
          try {
               wdContext.nodeZhr_Emp_List_Input().currentZhr_Emp_List_InputElement().modelObject().execute();
               wdContext.nodeOutput().invalidate();
          } catch (WDDynamicRFCExecuteException e) {
               wdComponentAPI.getMessageManager().reportSuccess(e.toString());
                              // TODO Auto-generated catch block
               e.printStackTrace();
          }finally {
     wdContext.currentZhr_Emp_List_InputElement().modelObject().modelInstance().disconnectIfAlive();
for the above code where Zhr_Emp_List_Input is the rfc . which will return employee details when we set the Pernr(personal number) to rfc
the exception is
com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Error connecting using JCO.Client: null
for only one time the rfc is executing . for the other time if we increase the pool size or change the whole jco references for webdynprojava application . we are able to execute the application

Dynamic JCO Client

Hi,
there is a way to create a dynamic JCO.Client?
I have this code:
JCO.Client jcoclient =   JCO.createClient(
                     "data",
                    "data",
                     "password",
                     "it",
                    "10.140.5.122",
                    "12");
          jcoclient.connect();
I want to get dynamically from the system the parameters for method "createClient". It's possible??There is a way??
THANS

>
Andrea Ruocco wrote:
> Hi,
> there is a way to create a dynamic JCO.Client?
> I have this code:
>
>
> I want to get dynamically from the system the parameters for method "createClient". It's possible??There is a way??
> THANS
To avoid hard coding the JCO connection details, take a look at the [Destination Service API|http://help.sap.com/saphelp_nw04/helpdata/en/8b/8e7dac1e661d44bf2a676fd3948cc6/frameset.htm].
Here is a [blog|https://www.sdn.sap.com/irj/scn/weblogs?blog=/pub/wlg/10300] on how to use the SAP Enterprise Connector (which is used to call JCOs) with the Destination Service API. Once the Destination service is set up, you can then create your JCO.client as follows
final InitialContext ctx = new InitialContext();
final DestinationService dstService = (DestinationService)ctx.lookup(DestinationService.JNDI_KEY);
if (dstService == null)
throw new NamingException("Destination Service not available");
RFCDestination dst;
// get the ERPR3 destination created in visual administrator
dst = (RFCDestination) dstService.getDestination("RFC", "ERPR3");
Properties jcoProperties = dst.getJCoProperties();
//Establish a direct connection
JCO.Client client = JCO.createClient(jcoProperties);
client.connect();

Create JCO Client in JSP

Hi all,
I have the following problem: How I can create the JCOClient in the JSP? In the AbstractPortalContent I use this code
IJCOClientService clientService = (IJCOClientService request.getService("jcoclient");
IJCOClientPoolEntry poolEntry;
try
poolEntry = clientService.getJCOClientPoolEntry("SAP_cFolders", request);
}catch (Exception e)
response.write("Error obtaining connection: " + e);
return;
JCO.Client client = null;
client = poolEntry.getJCOClient();
client.connect();
In the JSP I don't able to create the JCO.Client.
Someone can help me?
Thanks in advance,
Stefano

hi,
I am giving u the sample code of the application which i had done in Abstract portal component u try this for establishing JCO connection
hope this helps...
public class calingrfc extends AbstractPortalComponent
     private JCO.Client jcoClient;
      Rfccaling_PortType insFunc = new Rfccaling_PortType();
      Ztrng_Show_Input ip = new Ztrng_Show_Input();
      Ztrng_Show_Output op = new Ztrng_Show_Output();
    public void doContent(IPortalComponentRequest request, IPortalComponentResponse response)
// try {
//     this.connect();
//      insFunc.messageSpecifier.setJcoClient(jcoClient );
//     String temp = request .getParameter("text1");
//      ip.setTrainingid1(temp);
//} catch (RuntimeException e) {
//     // TODO Auto-generated catch block
//     e.printStackTrace();
//     private void connect() {
//                    try {
//                         jcoClient =
//                              JCO.createClient("700","developer","satyam","EN","sap02","01");
//                              jcoClient.connect();
//                    } catch (Exception e) {
//                         System.out.println("Error connecting to SAP ::" + e.getMessage());
//                         e.printStackTrace();
//     private void disconnect() {
//                    try {
//                         jcoClient.disconnect();
//                    } catch (Exception e) {
//                         System.out.println(
//                              "Error dis-connecting to SAP ::" + e.getMessage());
//                         e.printStackTrace();

Error sending IDOC from JCO Client to PI AEX 7.3.1

Hi All
We have a requirement to send an IDOC from a non SAP System to our ECC via PI AEX :
JCO.Client --> PI AEX --> SAP ECC
At this time, we are testing this scenario with a JAVA Client with JCO Library (3.0.10).
Destination to PI is OK
Destination to our SAP ECC (for IDocRepository) is OK
But by sending the IDOC to PI we are getting the following error, Exception is raised on the PI System and sent back to the JCO Client :
com.sap.conn.jco.JCoException: (104) JCO_ERROR_SYSTEM_FAILURE: while trying to invoke the method java.lang.Object.hashCode() of an object loaded from local variable 'key' (raised by system <extern>|PiSystem)
    at com.sap.conn.jco.rt.MiddlewareJavaRfc.generateJCoException(MiddlewareJavaRfc.java:670)
    at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcClient.execute(MiddlewareJavaRfc.java:1881)
    at com.sap.conn.jco.rt.ClientConnection.execute(ClientConnection.java:1120)
    at com.sap.conn.jco.rt.ClientConnection.execute(ClientConnection.java:953)
    at com.sap.conn.jco.rt.RfcDestination.execute(RfcDestination.java:1465)
    at com.sap.conn.jco.rt.AbapFunction.execute(AbapFunction.java:319)
    at com.sap.conn.idoc.jco.JCoIDoc.send(JCoIDoc.java:323)
    at com.sap.conn.idoc.jco.JCoIDoc.send(JCoIDoc.java:353)
    at sap_connector_examples.IDocClientExampleToJavaPO_pbs.main(IDocClientExampleToJavaPO_pbs.java:97)
Caused by: RfcException: [<extern>|PiSystem]
    message: while trying to invoke the method java.lang.Object.hashCode() of an object loaded from local variable 'key'
    Return code: RFC_SYS_EXCEPTION(3)
    error group: 104
    key: RFC_ERROR_SYSTEM_FAILURE
Exception raised by <extern>|PiSystem
PI Destination:
jco.destination.repository_destination=ABAP_AS_WITHOUT_POOL
jco.client.gwhost=PiSystem
jco.client.gwserv=sapgw01
jco.client.tpname=XI_IDOC_DEFAULT_PID
jco.client.type=E
ECC Destination: (ABAP_AS_WITHOUT_POOL)
jco.client.lang=en
jco.client.client=100
jco.client.passwd=****
jco.client.user=User
jco.client.sysnr=00
jco.client.ashost=ECCSystem
We have already set the PI VM System parameter jco.allow_non_abap_partner to 1
ECC User has S_RFC Rolle
I will be thankful for any advise.
Thank You
Regards
Stéphane

Hi
InboundRA (Resource Adapter) is green (Fully available).
What do you mean by maintaining JCO RFC Destination in PI ?
We have set the inboundRA Properties has follow :
ProgramID : XI_IDOC_DEFAULT_PID
DestinationName : XI_IDOC_DEFAULT_DESTINATION
Local: true
mutliRepository : ED1=XI_IDOC_DEFAULT_DESTINATION_ED1;ES4=XI_IDOC_DEFAULT_DESTINATION_ES4;MD1=XI_IDOC_DEFAULT_DESTINATION_MD1;ES1=XI_IDOC_DEFAULT_DESTINATION_ES1;PD1=XI_IDOC_DEFAULT_DESTINATION_PD1;
GatewayServer and Service are pointing to our PI System
BindingKey : PI_AAE_IDOC
And for each Repository we created a destination in NWA pointing to the corresponding ECC System.
(target host pointing to the ECC System and the Gateway host pointing to the PI System)
Our Installation isn't new but it is the first time we are configuring the System for this scenario:
JCO.client --> PI AEX
Regards
Stéphane

JCo Client Programming and Error Handling

Hi all,
I was wondering if anybody could help me out with some advice on error handling when writing code to send messages to SAP via a JCo Client, particularly IDocs.
I understand from my reading that IDocs are always sent asyncronously to the SAP system from JCo, using JCO.Client.send(). So it is possible (and I have some test code working to do this) to force an exception with say a malformed IDoc, and catch the exception in my code.
But due to the asyncronous nature of the send functionality for IDoc, I cannot see any way of getting back any "business level" exceptions (e.g. Order Number does not exist, Unknown Material, etc.)
So my question is, is it possible to receive any of these type of error messages when sending IDocs to an SAP system using JCo? Perhaps by setting up a JCo Server with the correct error/exception listeners to receive these messages - but are they even sent out in the way?
If not what is the process for handling them?
It is of course possible to look in the SAP system using txn WE02 and see the problem/error but that does not help me to propagate this back to the sending application or to maintain state alignment between the two apps.
Any advice much appreciated!!
Chris

Hi Anil,
you should check on those trheads:
<a href="https://www.sdn.sap.com/irj/sdn/thread?messageID=3104772&#3104772">https://www.sdn.sap.com/irj/sdn/thread?messageID=3104772&#3104772</a>
<a href="https://www.sdn.sap.com/irj/sdn/thread?messageID=579794&#579794">https://www.sdn.sap.com/irj/sdn/thread?messageID=579794&#579794</a>
Regards,
Gianluca Barile

URGENT: JCO.Client: null

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