JCO Connection User

Hi gurus,
I'd like to ask you what kind of user you use for connection in JCO connections. For our test system I used my own user but in live system a stable user must be used?
Any ideas?
Tolga

Hi Tolga,
You can have the JCO connection user having only the following authorizations from the S_DDIC_MDI profile.
But i do not think there should be any issue if you have the JCO connection user having the SAP_ALL also. As this is the main connector user between the system.
Thanks & regards
Arun

Similar Messages

Execute BAPI Using Current User ID, Not JCo Connection User ID (v7.0)

Currently when I call a BAPI, it executes under the username of the JCo Connection. User management is done via ECC, and not portal, so the User IDu2019s are identical.
Is it possible to call a BAPI from Web Dynpro using the current portal user User ID?

Hi,
Select the model which is created for the Bapi (in the webdynpro content Administrator), edit the JCO connection(modeldata) and select user method - Ticket, for the metadata you ca use a common communication userid.
By this the BAPI is executed with the current logged in portal userid.
Note: For using this your portal as to be configured with SAP ECC with SSO.
Hope this solves your issue.
Regards,
Manjunath

User Id creation for Jco connections

Hi,
Need to create a user for verifying the Jco connections. Please help me with the steps of creation and how can it restricted only for verifying the connections.
Thanks

Hi Daneil,
Best way is to do it yourself.
1 - Create a user having full access (SAP_ALL and SAP_NEW and RFC Full access as well).
2 - Set up the JCO connection with this user ID.
3 - Put a trace (ST01) on this user ID and then test the connection.
4 - Analyze the trace file and create a role having all the access pulled in the trace.
5 - remove all the access from the above user and assign the role created in 4.
6 - Put a trace once again on this user Id, just to ensure that if there is a miss in any authorization(failure) then you will be able to capture that as well. Update the role accordingly.
Hope this helps.

Error while obtaining JCO connection.

Hi I'm trying to put in place since BW-SEM RSPLAN the transaction, I'm pointing at my portal from the transaction RSPLSA
But when it signs the user gets the message Error while obtaining JCO connection.
I was reviewing my WebDynpro on my site by following these steps:
1 I will http://portal:port
2 I clicked Webdynpro
3 I click on Content Administrator
I clicked on 4 Maintain JCO destinations
and then I log shows the following:
Failed to process request. Please contact your system administrator.
[Hide]
Error Summary
While processing the current request, an exception occured which could not be handled by the application or the framework.
If the information contained on this page doesn't help you to find and correct the cause of the problem, please contact your system administrator. To facilitate analysis of the problem, keep a copy of this error page. Hint: Most browsers allow to select all content, copy it and then paste it into an empty document (e.g. email or simple text file).
Root Cause
The initial exception that caused the request to fail, was:
   java.lang.NullPointerException
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.checkStatus(SystemLandscapeFactory.java:991)
    at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.checkStatus(WDSystemLandscape.java:485)
    at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.updateJCOClientStatus(JCOConnectionsDetails.java:480)
    at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.addJCOClientToList(JCOConnectionsDetails.java:699)
    at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.addJCOClientToList(JCOConnectionsDetails.java:663)
    ... 39 more
See full exception chain for details.
System Environment
Client
Web Dynpro Client Type     HTML Client
User agent     Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3
Version     null
DOM version     null
Client Type     ns7
Client Type Profile     nn7
ActiveX     disabled
Cookies     enabled
Frames     enabled
Java Applets     enabled
JavaScript     enabled
Tables     enabled
VB Script     enabled
Server
Web Dynpro Runtime     Vendor: SAP, build ID: 7.0014.20071210061512.0000 (release=645_VAL_REL, buildtime=2007-12-10:05:23:29[UTC], changelist=470565, host=pwdfm101), build date: Wed Oct 01 12:15:02 CDT 2008
J2EE Engine     7.00 patchlevel 109886.44
Java VM     IBM J9 VM, version:2.3, vendor: IBM Corporation
Operating system     AIX, version: 5.3, architecture: ppc64
Session & Other
Session Locale     en_US
Time of Failure     Thu Nov 06 16:00:23 CST 2008 (Java Time: 1226008823202)
Web Dynpro Code Generation Infos
sap.com/tcwdtools
No information available     null
sap.com/tcwddispwda
No information available     null
sap.com/tcwdcorecomp
No information available     null
Detailed Error Information
Detailed Exception Chain
java.lang.NullPointerException
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.checkStatus(SystemLandscapeFactory.java:991)
     at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.checkStatus(WDSystemLandscape.java:485)
     at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.updateJCOClientStatus(JCOConnectionsDetails.java:480)
     at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.addJCOClientToList(JCOConnectionsDetails.java:699)
     at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.addJCOClientToList(JCOConnectionsDetails.java:663)
     at com.sap.tc.webdynpro.tools.explorer.JCOConnectionsDetails.wdDoInit(JCOConnectionsDetails.java:121)
     at com.sap.tc.webdynpro.tools.explorer.wdp.InternalJCOConnectionsDetails.wdDoInit(InternalJCOConnectionsDetails.java:262)
     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.bind(ViewManager.java:555)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.makeVisible(ViewManager.java:789)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.performNavigation(ViewManager.java:296)
     at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.navigate(ClientApplication.java:767)
     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:319)
     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.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: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(AccessController.java:219)
     at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:102)
     at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:172)
What should I do??

Hi Antonio,
Follow the below note for Jco related troubleshooting.
https://service.sap.com/sap/support/notes/919850
Are you able to see the 4 Jco connections green?
Regards,
Debasis.

Error while obtaing JCO connection

In Bussiness planning in portal. When i click Planning tab in Enterprise portal, its throwing an error that "error while obtaining JCO connection". I cant proceed furtherI
I am working in my own system.
I have checked many posts and i have done some JCO destinations as per the instructions but it's vain.
The detailed error is as follows;
500 Internal Server Error
Web Dynpro Container/SAP J2EE Engine/6.40
Failed to process request. Please contact your system administrator.
Error Summary
While processing the current request, an exception occured which could not be handled by the application or the framework.
If the information contained on this page doesn't help you to find and correct the cause of the problem, please contact your system administrator. To facilitate analysis of the problem, keep a copy of this error page. Hint: Most browsers allow to select all content, copy it and then paste it into an empty document (e.g. email or simple text file).
Root Cause
The initial exception that caused the request to fail, was:
com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: ComponentUsage(CharRelInst): Active component must exist when getting interface controller. (Hint: Have you forgotten to create it with createComponent()? Should the lifecycle control of the component usage be "createOnDemand"?
at com.sap.tc.webdynpro.progmodel.components.ComponentUsage.ensureActiveComponent(ComponentUsage.java:773)
at com.sap.tc.webdynpro.progmodel.components.ComponentUsage.getInterfaceControllerInternal(ComponentUsage.java:348)
at com.sap.tc.webdynpro.progmodel.components.ComponentUsage.getInterfaceController(ComponentUsage.java:335)
at com.sap.ip.bi.plan.workbench.wdp.InternalInfoprovController.wdGetCharRelInstInterface(InternalInfoprovController.java:296)
at com.sap.ip.bi.plan.workbench.InfoprovController.checkSavable(InfoprovController.java:254)
... 48 more
please give some pointers like what needs to be done JCO settings in Backend.
Thanks in advance.

Niranjan,
3 causes and many more....
First and most probable cause is that your CR content in SLD is old....
FIX - to fix this download latest cimsap and crcontent from service.sap.com and implement in SLD.
Second cause user is locked
FIX - unlock in R/3
Third cause could be that the connection pool in JCO is exhausted.
FIX - increase connection pool in JCO.
More causes.
With this new version it appears that any error before connection is created ends up showing this, so I would really go into default trace and look there for original errors, that is the way I found JCO pool was exhausted, that error was not being forwarded and instead it was showing this error...
reward points if helpful

Problems during creation of JCo Connections

Hi everybody,
i've a problem while creating JCo Connections in the Content Administrator of me WebAS.
I can selct the connection i want to maintain, but at the second step, an new window appears and i get the following message. Does anybody have an idea and could help me.
Best regards,
Maik.
An error has occurred:
"Failed to process the request."
Please contact your system administrator.
Hide details
Web Dynpro client:
HTML Client
Web Dynpro client capabilities:
User agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0), 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
Web Dynpro runtime:
Vendor: SAP, Build ID: 6.4010.00.0000.20040921144040.0000 (release=630_SP_REL, buildtime=2004-09-21:22:25:54[UTC], changelist=283399, host=PWDFM067)
Web Dynpro code generators of DC sap.com/tcwdtools:
No information available
Web Dynpro code generators of DC sap.com/tcwddispwda:
No information available
Web Dynpro code generators of DC sap.com/tcwdcorecomp:
No information available
J2EE Engine:
6.40 patchlevel 86216.32
Java VM:
Java HotSpot(TM) Server VM, version: 1.4.2_05-b04, vendor: Sun Microsystems Inc.
Operating system:
Windows 2000, version: 5.0, architecture: x86
Error stacktrace:
java.lang.NullPointerException

Hi Henrik,
I got exactly the same problem has you have with the same version (6.40 SP9). I have opened an OSS message ..
Best regards,
Christian DUCRET (SAP BAsis Team)

Can't create JCO connection in Portal7 for ESS1.0

Hi,
I am in the Process of setting up ESS/MSS Rel 1.0 in Portal 7. The Portal is a WebAS ABAP+JAVA system.
First step after installing Portal, I configured the SLD and created the Technical systems. The sld is running and I have tested the sld from the Content Administrator->WebDynpro-> check SLD. It results sld successfully tested and I am able to start the sld also.
After that I deployed the Business packages for ESS/MSS and selfservices via SDM.
Now I am trying to create the JCO connection in the Content Administrator->WebDynpro->create/maintain JCO Connections, it throws the following error
500   Internal Server Error
Web Dynpro Container/SAP J2EE Engine/6.40
Failed to process request. Please contact your system administrator.
Error Summary
While processing the current request, an exception occured which could not be handled by the application or the framework.
If the information contained on this page doesn't help you to find and correct the cause of the problem, please contact your system administrator. To facilitate analysis of the problem, keep a copy of this error page. Hint: Most browsers allow to select all content, copy it and then paste it into an empty document (e.g. email or simple text file).
Root Cause
The initial exception that caused the request to fail, was:
   java.lang.NullPointerException
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.checkStatus(SystemLandscapeFactory.java:991)
    at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.checkStatus(WDSystemLandscape.java:469)
    at com.sap.tc.webdynpro.tools.sld.NameDefinition.updateJCODestinations(NameDefinition.java:272)
    at com.sap.tc.webdynpro.tools.sld.NameDefinition.updateNavigation(NameDefinition.java:237)
    at com.sap.tc.webdynpro.tools.sld.NameDefinition.wdDoInit(NameDefinition.java:144)
    ... 45 more
See full exception chain for details.
System Environment
Client
Web Dynpro Client Type HTML Client
User agent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)
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: 7.0009.20060804145649.0000 (release=645_VAL_REL, buildtime=2006-08-26:14:41:58[UTC], changelist=413534, host=pwdfm101), build date: Fri Aug 31 20:55:03 GMT+08:00 2007
J2EE Engine 7.00 patchlevel
Java VM Java HotSpot(TM) Server VM, version:1.4.2_15-b02, vendor: Sun Microsystems Inc.
Operating system Windows 2003, version: 5.2, architecture: x86
Session & Other
Session Locale en_US
Time of Failure Tue Sep 11 17:54:15 GMT+08:00 2007 (Java Time: 1189504455341)
Web Dynpro Code Generation Infos
sap.com/tcwdtools
No information available null
sap.com/tcwddispwda
No information available null
sap.com/tcwdcorecomp
No information available null
Detailed Error Information
Detailed Exception Chain
java.lang.NullPointerException
     at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.checkStatus(SystemLandscapeFactory.java:991)
     at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.checkStatus(WDSystemLandscape.java:469)
     at com.sap.tc.webdynpro.tools.sld.NameDefinition.updateJCODestinations(NameDefinition.java:272)
     at com.sap.tc.webdynpro.tools.sld.NameDefinition.updateNavigation(NameDefinition.java:237)
     at com.sap.tc.webdynpro.tools.sld.NameDefinition.wdDoInit(NameDefinition.java:144)
     at com.sap.tc.webdynpro.tools.sld.wdp.InternalNameDefinition.wdDoInit(InternalNameDefinition.java:236)
     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.bind(ViewManager.java:555)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:724)
     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.progmodel.view.InterfaceView.initController(InterfaceView.java:43)
     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.bind(ViewManager.java:555)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.makeVisible(ViewManager.java:789)
     at com.sap.tc.webdynpro.progmodel.view.ViewManager.performNavigation(ViewManager.java:296)
     at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.navigate(ClientApplication.java:767)
     at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.navigate(ClientComponent.java:873)
     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:299)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessingStandalone(ClientSession.java:711)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doApplicationProcessing(ClientSession.java:665)
     at com.sap.tc.webdynpro.clientserver.session.ClientSession.doProcessing(ClientSession.java:232)
     at com.sap.tc.webdynpro.clientserver.session.RequestManager.doProcessing(RequestManager.java:152)
     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:390)
     at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:264)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:347)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:325)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:887)
     at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:241)
     at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)
     at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:148)
     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)
This is very urgent, can any one of u help me on this....
Thanks

Hi,
I am running Netweaver 7 and ERP2005.
J2EE support pack is 9. The sap note that you mentioned is for NW2004 and our system is running on NW2004s.
Now I am trying to reconfigure the sld. In case if you can suggest me another solution, I will be very happy to try that out...
Thanks for your reply
Edited by: Rakesh Bothra on Apr 20, 2011 4:23 AM

How to create a model and JCO connection

Hi all,
The Userid and Password given while creating new model at Singleserver/Load balancing tab should be same as the userid and password given while creating JCO connection. i.e in JCO creation while mapping modeldata to Application data and Metadata to metadata we will give some userid and password.
will those 2 userids and passwords should be same.
the error which i am getting is
com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Error connecting using JCO.Client: null
Regards
Padma N

2 userids and passwords need not be same
i got similar problem and this is how i resolved
this is because jco connections are Using SSO and the user who is accessing that webdynpro application is not present in the backend system.
please make sure user is there in the backend system from which you are getting data
xxxxxxxxxxxxxxxxxxxxx
Edited by: Armin Reichert on Feb 18, 2008 7:26 PM

Model and MetaData configarations in JCO Connection

Hi all,
while creating new model i used Load Balance option instead of Single Server.So while creating JCO connection what should be selected for ApplicationData and MetaData radio buttons.The error which i am got aftet deploying and running is
com.sap.tc.webdynpro.modelimpl.dynamicrfc.WDDynamicRFCExecuteException: Error connecting using JCO.Client: null
Is this error is because of LoadBalance configarartion while creating JCO for Destinations or at the client num which we gave at the starting step of creating JCO
Regards
Padma N

i got similar problem and this is how i resolved
this is because jco connections are Using SSO and the user who is accessing that webdynpro application is not present in the backend system.
please make sure user is there in the backend system from which you are getting data
xxxxxxxxxxxxxxxxxxxxxxx
Edited by: Armin Reichert on Feb 18, 2008 7:26 PM

Not able to create JCO Connection

Hi,
I have created a new technical system 'Wed As ABAP" in SLD.Now while creating the JCO connection I am getting java.lang.NullPointerException the small detail of which are as given
500   Internal Server Error
Web Dynpro Container/SAP J2EE Engine/6.40
Failed to process request. Please contact your system administrator.
[Hide]
Error Summary
While processing the current request, an exception occured which could not be handled by the application or the framework.
If the information contained on this page doesn't help you to find and correct the cause of the problem, please contact your system administrator. To facilitate analysis of the problem, keep a copy of this error page. Hint: Most browsers allow to select all content, copy it and then paste it into an empty document (e.g. email or simple text file).
Root Cause
The initial exception that caused the request to fail, was:
   java.lang.NullPointerException
    at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.checkStatus(SystemLandscapeFactory.java:985)
    at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.checkStatus(WDSystemLandscape.java:469)
    at com.sap.tc.webdynpro.tools.sld.NameDefinition.updateJCODestinations(NameDefinition.java:272)
    at com.sap.tc.webdynpro.tools.sld.NameDefinition.updateNavigation(NameDefinition.java:237)
    at com.sap.tc.webdynpro.tools.sld.NameDefinition.wdDoInit(NameDefinition.java:144)
    ... 45 more
See full exception chain for details.
System Environment
Client
Web Dynpro Client Type HTML Client
User agent Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.0.3705; .NET CLR 1.1.4322; InfoPath.1; .NET CLR 2.0.50727)
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: 7.0007.20060331081328.0000 (release=645_VAL_REL, buildtime=2006-03-31:06:24:04[UTC], changelist=396896, host=pwdfm101), build date: Mon Apr 23 17:10:46 GMT+05:30 2007
J2EE Engine 7.00 patchlevel
Java VM Java HotSpot(TM) Server VM, version:1.4.2_13-b06, vendor: Sun Microsystems Inc.
Operating system Windows XP, version: 5.1, architecture: x86
Session & Other
Session Locale en_US
Time of Failure Fri Apr 27 15:35:45 GMT+05:30 2007 (Java Time: 1177668345279)
Web Dynpro Code Generation Infos
sap.com/tcwdtools
No information available null
sap.com/tcwddispwda
No information available null
sap.com/tcwdcorecomp
No information available null .
Can anybody please tell why this error has occured?
Regards,
Pawan

Hi,
Refer the below link
Download the Content from OSS, then import via SLD = Content Maintenance.
https://service.sap.com/sap/support/notes/669669
There are other related notes relating to CIM errors.
Thanks,
RamuV

JCO Connection error in webdynpro

Hi
I have Ep 7.0, ECC 6.0 (NW2004s)
I am trying to establish JCo connection but we are getting the
following error
"com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect
to message server host failed Connect_PM TYPE=B MSHOST=*****
GROUP=SPACE R3NAME=HEI MSSERV=sapmsHEI PCS=1 ERROR
service 'sapmsHEI' unknown TIME Fri May 30 16:19:20 2008
RELEASE 700 COMPONENT NI (network interface) VERSION 38 RC -
3 MODULE ninti.c LINE 530 DETAIL NiPGetServByName2:
service 'sapmsHEI' not found SYSTEM CALL getservbyname_r COUNTER 2"
Already i have created TechnicalSystems in the Portal and
I have entered the sevice file in the location of c:\WINDOWS\system32\drivers\etc as "sapms<SID> 3600/tcp" in EnterprisePortal Server.
after that we have restarted the server
Still i am getting same error.
Could you please help us.
Regards
Srinivas

Hi,
First You Configure SLD Correctly.If You Have ECC And BW.You Maintaing Two WEBAS ABAP Systems.
You Create WEB AS ABAP System In SLD And Maintain Connection Properties Of ECC.And
Similarly For BW Also.
The Given Below Links To Help You SLD Cofiguration For J2EE
http://www.*********************/solution_manager/solution_manager_sld.html
SLD Configuration
3.If You Want To Create JCO Destinations.You Go To Login Portal
Content Administration->Webdynpro->Create JCO Destinatiion
A.General Data -> Specify Model Name,Client And JCO Pool Configuration
B.Specify J2EEE Cluster
C.Destination type
Data Type-> Application DataModel,Dictionary MetaDataMetadata
Destination Type->Load Balancing Or Single Server
D.Specify Either Application Server Or Message Server
E.SecurityUsername,password,confirm password,language
F.SummaryWhole Information
Similarly Metadata Created Follow Same Steps As Above
After Creating JCO Destinations, Go For Maintain JCO Destination And test The JCO Destinations Works Fine Or Not you Con Test.
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/com.sap.km.cm.docs/library/user-interface-technology/webdynpro/wd%20java/portal%20integration/how%20to%20use%20the%20web%20dynpro%20content%20administrator.pdf
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/85a483cb-0d01-0010-2990-c5168f01ce8a
http://help.sap.com/saphelp_nw04/helpdata/en/77/931440a1c32402e10000000a1550b0/frameset.htm
It's Useful Rewards Points
Bye
Thanks
SubbaRao

JCo Connection using file.properties doesn't work when deployed

Hello Experts,
I'm trying to connect to a SAP backend system using the JCo connection.
I've tyed with the standard connection, crating dinamically the connection and it works fine:
mConnection = JCO.createClient("001", // SAP client
"sap.user", // userid
"********", // password
"IT", // language
"ashost.domain.dom", // application server host name
"06"); // system number
mConnection.connect();
Then I tryed to store the login data in a file 'login.properties' put in the same package of my connection classes.
The code is:
String[] logonStr = new String[5];
Properties properties = new Properties();
try {
InputStream is = getClass().getResourceAsStream("login.properties");
properties.load(is);
} catch (Exception e) {
e.printStackTrace();
logonStr[0] = PropertyManager.getProperty(applicationProperties,"jco.client.client");
logonStr[1] = PropertyManager.getProperty(applicationProperties,"jco.client.user");
logonStr[2] = PropertyManager.getProperty(applicationProperties,"jco.client.passwd");
logonStr[3] = PropertyManager.getProperty(applicationProperties,"jco.client.ashost");
logonStr[4] = PropertyManager.getProperty(applicationProperties,"jco.client.sysnr");
mConnection = JCO.createClient(logonStr[0],      // SAP client
logonStr[1],    // userid
logonStr[2],    // password
"IT",           // language
logonStr[3],    // application server host name
logonStr[4]);   // system number
If I test locally this code it works fine and the login datas are extracted from the 'login.properties' file.
But when I deploy my PAR file in the Portal seems that the 'login.properties' file isn't found by my application...
Which could be the cause??
Could it be a permission problem??
Any Ideas?
Thanks in Advance,
Best Regards

Hi Shyam,
Thanks for your answer!
I could use the string "ashost.domain.dom" instead to extract it from the 'login.properties' but I need also the others login info as username and password.
My problem is that the 'login.properties' file is not found by my application when the PAR file is deployed in the portal...
I need to know if I need to move the 'login.properties' file in another package or something else...
Any ideas??
Have I to declare the .properties file in some configuration file (for example portalapp.xml or somthing similar..) ??
Best Regards...

Error in launching guided procedure: Error while obtaining JCO connection.

Hello experts,
we've a problem with webdynpro java calling a guided procedure.
We've defined an endpoint for our callable object, as you can see the test of the connection works fine:
In the configuration of our callable object we use the endpoint above:
And we can test the callable object: it works well, call the right BAPI and find the results.
But when the GP is called and this callable object try to call the BAPI in the background it doesn't work at all.
In the log and trace of the portal we find this:
A technical callable object exception ocurred: Le service RecupActeurs n'a pas pu être exécuté : La connexion pour le nom de connexion SAP_R3_HumanResources n'a pas pu être chargée à partir de System Landscape Directory (SLD) : Error while obtaining JCO connection.
com.sap.caf.eu.gp.model.co.tech.TechnicalCallableObjectException: Le service RecupActeurs n'a pas pu être exécuté : La connexion pour le nom de connexion SAP_R3_HumanResources n'a pas pu être chargée à partir de System Landscape Directory (SLD) : Error while obtaining JCO connection.
at com.sap.caf.eu.gp.model.connect.impl.ExternalServiceBackgroundCOContainer.execute(ExternalServiceBackgroundCOContainer.java:101)
at com.sap.caf.eu.gp.model.co.background.impl.BackgroundCOExecutorImpl$CallableObjectExecutor.run(BackgroundCOExecutorImpl.java:126)
at com.sap.caf.eu.gp.model.co.background.impl.BackgroundCOExecutorImpl.execute(BackgroundCOExecutorImpl.java:504)
at com.sap.caf.eu.gp.model.co.background.impl.BackgroundCOExecutorImpl.execute(BackgroundCOExecutorImpl.java:581)
at com.sap.caf.eu.gp.model.pfw.wfc.local.impl.BackGroundActionProcessorHelper.processAction(BackGroundActionProcessorHelper.java:183)
at com.sap.caf.eu.gp.model.pfw.wfc.local.impl.queue.BackgroundCOQueueProcessor.run(BackgroundCOQueueProcessor.java:263)
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)
Caused by: com.sap.caf.eu.gp.base.exception.EngineException: Connection that belongs to connection name SAP_R3_HumanResources could not be loaded from System Landscape Directory (SLD): Error while obtaining JCO connection.
at com.sap.caf.eu.gp.model.connect.rfc.impl.SLDConnectionManager.getClientConnection(SLDConnectionManager.java:138)
at com.sap.caf.eu.gp.model.connect.rfc.impl.ConnectionDeliverRFC.analyseConnectionMode(ConnectionDeliverRFC.java:185)
at com.sap.caf.eu.gp.model.connect.rfc.impl.ConnectionDeliverRFC.deliverConnection(ConnectionDeliverRFC.java:91)
at com.sap.caf.eu.gp.model.connect.rfc.impl.SAPSystemConnector.deliverMetaData(SAPSystemConnector.java:116)
at com.sap.caf.eu.gp.model.connect.pvd.saprfc.impl.SAPRFCServiceProvider.executeExternalService(SAPRFCServiceProvider.java:232)
at com.sap.caf.eu.gp.model.connect.impl.ExternalServiceManager.executeExternalService(ExternalServiceManager.java:139)
at com.sap.caf.eu.gp.model.connect.impl.ExternalServiceBackgroundCOContainer.execute(ExternalServiceBackgroundCOContainer.java:89)
... 9 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.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:160)
at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.getJCOClientConnection(WDSystemLandscape.java:41)
at com.sap.caf.eu.gp.model.connect.rfc.impl.SLDConnectionManager.resolveClientConnection(SLDConnectionManager.java:169)
at com.sap.caf.eu.gp.model.connect.rfc.impl.SLDConnectionManager.getClientConnection(SLDConnectionManager.java:102)
... 15 more
Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve connection parameter for 'SAP_R3_HumanResources'
at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestination(JCOClientConnection.java:658)
at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:485)
at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:248)
at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:233)
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)
... 19 more
Caused by: com.sap.tc.webdynpro.services.sal.um.api.WDUMException: No client user defined for the current request (no regular Web Dynpro request as ITask is null.
at com.sap.tc.webdynpro.serverimpl.core.um.AbstractClientUserFactory.getCurrentUser(AbstractClientUserFactory.java:48)
at com.sap.tc.webdynpro.services.sal.um.api.WDClientUser.getCurrentUser(WDClientUser.java:67)
at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestination(JCOClientConnection.java:591)
It seems that the GP could not connect to the SLD to call the JCO, but as said before, when we test the callable object, it calls the BAPI without any problem.
We tried to recreat either the JCO and the Endpoint but without success.
Any help will be appreciated.
Thank you.

Hi.
Thanks for your answers.
Here are the things :
From the GP administration, the endpoint's test is working.
From the SLD, the JCO is working too.
From the Web Dynpro Content Administrator, the JCO's test is working too.
From the GP Desing Time, the callable object supposed to call the FM uses the right endpoint, and the test is working too, we retreive data from the backend.
From our app, calling the GP process that includes our callable object, we have errors pasted above...
Regards.

What is the best Practice JCO Connection Settings for DC Project

When multiple users are using the system data is missing from Web Dynpro Screens. This seems to be due to running out of connections to pull data.
I have a WebDynpro Project based on component development using DC's. I have one main DC which uses other DC's as Lookup Windows. All DC's have their Own Apps. Also inside the main DC screen, the data is populated from multiple function modules.
There are about 7 lookup DC Apps accessed by the user
I have created JCO destinations with following settigns
Max Pool Size 20
Max Number of Connections 200
Before I moved to DC project it was regular Web Dynpro Project with one Application and all lookup windows were inside the same Project. I never had the issue with the same settings.
Now may be becuase of DC usage and increase in applications I am running out of connections.
Has any one faced the problem. Can anyone suggest the best practice of how to size JCO connections.
It does not make any sense that just with 15-20 concurrent users I am seeing this issue.
All lookup components are destroyed after its use and is created manually as needed. What else can I do to manage connections
Any advise is greatly appreciated.
Thanks

Hi Ravi,
Try to go through this Blog its very helpful.
[Web Dynpro Best Practices: How to Configure the JCo Destination Settings|http://www.sdn.sap.com/irj/scn/weblogs;jsessionid=(J2EE3417600)ID2054522350DB01207252403570931395End?blog=/pub/wlg/1216]
Hope It will help.
Regards
Jeetendra

Authentication method for JCo connection in XSS installation

Hi All,
I have a query which perplexes me. I am implementing XSS (ESS/MSS) on SAP Portal EP6 SR1 with an ECC5 backend for prototype purposes.
When I follow SAP's help steps to setup JCo connections, it states that for the metadata connection you should use a security authentication method of 'User/Password', but for the application data connection you should use a security authentication method of 'Ticket'.
Does anyone know why the difference in methods here? Is it possible to use 'User/Password' for both? Any thoughts would be appreciated.

Hi john,
User -ID /Pwd method can be used to access the backend for both types of Data as per your scenario.
User -ID /Pwd method and logon tickets both can be used to access data in backend.
The difference lies in the scenario with which you are accessing the back-end.
If all your portal users are same as backend users then you can select Logon ticket methods.
If they are going to be different then you need User-ID /Pwd method .
Check the following link to get a clear picture:
<a href="http://help.sap.com/saphelp_ep50sp2/helpdata/en/4d/dd9b9ce80311d5995500508b6b8b11/frameset.htm">Scenario to use type of SSO</a>
Hope it helps.
Regards,
Vivekanandan

JCO Connection User

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