Abap Rfc External Debug from a Jco Client Connection

Hi to all,
i have developed a Java Application on Sap J2ee (SAP-JEE 7.01 SP6) , using the Jco2 integrated.
I'm using direct connection , calling Custom Functions Module on Abap Stack.
I have a question about Abap Debugging:
now i debug the abap function setting an external session breakpoint (SE37) and the abap debug stops correctly on breakpoint that i've set.
But sometimes i notice the strange situation that during my debug another debug session (identical to the first) is open on my sap gui (it seems that Jco sends another request while i'm debugging the first )
Reading the jco documentation i've seen this method that i never used: JCO.Client setAbapDebug(boolean debug)
Enables/disables abap debug.
Note:If the connection is already established the method will close and reopen the connection.
have I to set this in my java code in addition to abap external breakpoint? Why Jco.Client sends another request?
Thanks for the answers
Alessandro

Anyone know?
Thanks,
Augusto Póvoa.

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I realy don't think so.
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Dear Experts,
we are facing a strange issue in our custom webdynpro java application, few of our portal users are getting the "couldn't create jco client connection for logical system" for Model Data JCO Destination. below are details
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Hello Ram,
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Failed to create new JCO client connection WD_FLIGHTLIST_RFC_METADATA_DEST:

I tried the demo in SDN, but failed .
Why?

Sorry I forget posting the msg:
for WD_FLIGHTLIST_MODELDATA_DEST:
nnection for 'WD_FLIGHTLIST_MODELDATA_DEST' was sucessfully tested with user 'ZZHZHU'
But :
for WD_FLIGHTLIST_RFC_METADATA_DEST:
Failed to create new JCO client connection WD_FLIGHTLIST_RFC_METADATA_DEST: 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:140) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:286) at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.createJCOClientConnection(WDSystemLandscape.java:107) at com.sap.tc.webdynpro.tools.sld.ButtonBar.onActionFinish(ButtonBar.java:224) at com.sap.tc.webdynpro.tools.sld.wdp.InternalButtonBar.wdInvokeEventHandler(InternalButtonBar.java:252) 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.task.WebDynproMainTask.handleAction(WebDynproMainTask.java:100) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:299) at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:640) at com.sap.tc.webdynpro.clientserver.cal.AbstractClient.executeTasks(AbstractClient.java:59) at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:251) 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.doPost(DispatcherServlet.java:55) 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:391) at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:265) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:345) at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:323) at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:865) at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:240) 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: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.doPrivileged1(Native Method) at java.security.AccessController.doPrivileged(AccessController.java:321) 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.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve connection parameter for WD_FLIGHTLIST_RFC_METADATA_DEST at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestinaton(JCOClientConnection.java:664) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter(JCOClientConnection.java:508) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.init(AbstractJCOClientConnection.java:247) at com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:221) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.<init>(JCOClientConnection.java:101) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnection(SystemLandscapeFactory.java:138) ... 31 more Caused by: java.lang.NullPointerException at java.util.Hashtable.put(Hashtable.java:474) at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestinaton(JCOClientConnection.java:558) ... 36 more

JCo client connection Failed to create new JCO client connection

hi All
I am trying to create a new JCO destination ion CE7.1 webdynpro content Admin. but I am getting following error.
Exception while creating JCo client connection Failed to create new JCO client connection weter: com.sap.lcr.api.cimclient.LcrException: CIM_ERR_ACCESS_DENIED: User is not in role LcrInstanceWriterLD at com.sap.lcr.api.cimclient.SimpleResponseAnalyser.raiseExceptionOnError(SimpleResponseAnalyser.java:120) at com.sap.lcr.api.cimclient.SimpleResponseAnalyser.getIResult(SimpleResponseAnalyser.java:53) at com.sap.lcr.api.cimclient.CIMOMClient.sendImpl(CIMOMClient.java:220) at com.sap.lcr.api.cimclient.CIMOMClient.send(CIMOMClient.java:148) at com.sap.lcr.api.cimclient.CIMOMClient.createInstanceImpl(CIMOMClient.java:669) at ......
SLD is Up and running
CIM data is imported
Solution tried :
1) As no role wtih name LcrInstanceWriterLD was existing in the server ,hence created a new role with same name and assigned the LCR related action . Assigned the role to the user through which we are creating JCOs.
But we still getting the same error.
regards
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Hi Poonam!
Got to dig in the past a bit, I remember Users being able to create SLD object have to have certain permissions set in the J2EE UME. Simple Admin rights do not suffer, if I recall right.
Unfortunately I cannot go further in detail because this issue has been solved by a long gone collegue of mine.
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Jürgen

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Hello all -
I am trying to create JCo metadata connections and I am getting the below error trace.
Exception while creating JCo client connection Failed to create new JCO client connection SAP_R3_HumanResources_Metadata: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to change password for key SAP_R3_HumanResources_Metadata in secure storage at com.sap.tc.webdynpro.serverimpl.wdc.sl.SecureStorageWrapper.changePassword(SecureStorageWrapper.java:149) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:299) at com.sap.tc.webdynpro.services.sal.sl.api.WDSystemLandscape.createJCOClientConnection(WDSystemLandscape.java:107) at com.sap.tc.webdynpro.tools.sld.ButtonBar.onActionFinish(ButtonBar.java:265) at com.sap.tc.webdynpro.tools.sld.wdp.InternalButtonBar.wdInvokeEventHandler(InternalButtonBar.java:265) 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:321) 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(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.security.core.server.securestorage.exception.ObjectStorageException at com.sap.security.core.server.securestorage.remote.RemoteSecureStorageClientContextImpl.storeObject(RemoteSecureStorageClientContextImpl.java:600) at com.sap.tc.webdynpro.serverimpl.wdc.sl.SecureStorageWrapper.changePassword(SecureStorageWrapper.java:137) ... 33 more
Could anybody please suggest what is wrong with this creation?
Thanks much!!

Hi Maria,
Please update the host and sevice file first then check the SLD test and SLD Data supplier in visual admin.
Also check and verify the data using in the Jco destination creation.
Hope it will helps
Regards
Arun Jaiswal

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Hello all,
I defined a destination in the Visual Admin.
Run a successful test with the test button.
Created an EJB that accesses the destination successfully, but getting an exception when trying to create a client (the last code line) :
RFCDestination dst = (RFCDestination) dstService.getDestination("RFC", "DGL_DEST_TEST");
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JCO.Client client = JCO.createClient(jcoProperties);
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Hi Denis,
I wrote the code in an EJB and running the EJB threw a Web Service.
I don't have much experience in J2EE but it looks like because I'm running threw a
Web Service I don't get the details of the exception.
even though the code is in a try-catch block all I get is an error saying:
Exception in method name_of_method.
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Like a while a ago, I remember on SDN there was a video for external debugging tutorial. Can any one point me to that or any other documentation for doing external debug from NWDS.
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HI James!!!
You can find a video presentation for external debugging of WD JAVA application at:
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/com.sap.km.cm.docs/library/elearning/user-interface-technology/web%20dynpro/wd%20java/web%20dynpro%20java%20with%20an%20adaptive%20rfc%20model/web%20dynpro%20java%20with%20an%20adaptive%20rfc%20model%3a%20debugging/resources/eventplayer.htm
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Umang

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Hi,
I am calling an RFC using JCO and trying to have the SAPGUI pop up at the entry point to the RFC for debugging. But it is not working on Mac OS X.
I activate the debug via
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   client.setAbapDebug(true);
   client.setSapGui(1);
   client.connect();
it gives error:
sh: line 1: /usr/sap/DV2/SYS/exe/run/sapgui: No such file or directory
com.sap.mw.jco.JCO$Exception: (103) RFC_ERROR_LOGON_FAILURE: Start 'sapgui' failed.
     at com.sap.mw.jco.rfc.MiddlewareRFC$Client.nativeConnect(Native Method)
     at com.sap.mw.jco.rfc.MiddlewareRFC$Client.connect(MiddlewareRFC.java:1098)
I then tried to set environment variable SAPGUI=/Applications/SAPGUI\ for\ Java\ 6.3r5.2/SAPGUI\ 6.30rev5.2.app/Contents/MacOS/SAPGUI
and it then starts up the SAPGUI for Java Logon Pad.
But, I want the SAPGUI to start up at the entry point to the RFC.
Is this possible in Mac OS X? It has worked before on Windows using the RFC SDK utilities or middleware tools such as IBM Crossworlds.
Thanks

Hi Robert,
Thanks for the reply, it was very helpful as I had given up hope on getting a solution. Unfortunately I am still getting an error.
1) I created a script as per your directions containing
"/Applications/SAPGUI for Java 6.3r5.2/SAPGUI 6.30rev5.2.app/Contents/MacOS/SAPGUI" -n -o $*
2) Now the SAPGUI application starts, but does not open a window and I get the error:
ERROR #############################
18.05. 11:58:42.943 ERROR: AgiWindowAdaptor::update: no menu
ERROR #############################
3) I switched on the tracekeys with -t CON,SES,EVT,C_AGI to get more detail:
18.05. 11:58:41.420 TRC: Active trace keys: CON,SES,EVT,C_AGI
18.05. 11:58:42.709 CON: new GuiConnection
18.05. 11:58:42.727 CON: GuiConnection.open(/H/<appserver>/S/3235&rfcid=02D5428B909E32190000,tmp)
18.05. 11:58:42.846 CON: new GuiNiNetConnection
18.05. 11:58:42.872 CON: GuiNiNetConnection.open(conn=/H/<appserver>/S/3235&cpg=1127&jenc=MacRoman&jloc=en&rfcid=02D5428B909E32190000)
18.05. 11:58:42.872 CON: GuiNiNetConnection.open: resolved hostSpec = /H/<appserver>/S/3235
18.05. 11:58:42.915 CON: -
18.05. 11:58:42.916 CON: GuiNiNetConnection: sending DIAG data to connection for modus 0
18.05. 11:58:42.918 CON: -
18.05. 11:58:42.919 CON: GuiNiNetConnection: sending DIAG data to connection for modus 0
18.05. 11:58:42.927 C_AGI: calling AgiSessionPool->ParseIt() for modus 0
18.05. 11:58:42.929 C_AGI: AgiLibAdaptor::onNewPrimary
18.05. 11:58:42.941 C_AGI: returned from AgiSessionPool->ParseIt() for modus 0
ERROR #############################
18.05. 11:58:42.943 ERROR: AgiWindowAdaptor::update: no menu
ERROR #############################
18.05. 11:58:42.950 SES: GuiAutomationProcessor: processing automation call list for modus id 0
18.05. 11:58:43.043 SES: new GuiSession
18.05. 11:58:50.557 CON: GuiNiNetConnection: sending CLOSE data to writer thread
18.05. 11:58:50.791 CON: -
18.05. 11:58:50.791 CON: GuiNiNetConnection: sending DIAG data to connection for modus -1
18.05. 11:58:50.793 C_AGI: AgiLibAdaptor::onDelContainer
18.05. 11:58:50.794 C_AGI: AgiLibAdaptor::onDelContainer
18.05. 11:58:50.794 C_AGI: AgiLibAdaptor::onDelPrimary
18.05. 11:58:50.795 CON: GuiConnection.destroyNetConnectionAndParser
com.sap.mw.jco.JCO$Exception: (103) RFC_ERROR_LOGON_FAILURE: Start 'sapgui' failed.
     at com.sap.mw.jco.rfc.MiddlewareRFC$Client.nativeConnect(Native Method)
     at com.sap.mw.jco.rfc.MiddlewareRFC$Client.connect(MiddlewareRFC.java:1098)
     at com.sap.mw.jco.JCO$Client.connect(JCO.java:2983)
Any further ideas on what is wrong?   There is a post on another forum http://listserv.sap.com/pipermail/linux.general/2002-June/002538.html with the same error, but no response..
Thanks,
Richard

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===== BEGIN DUMP =============================================================
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Thanks,
Corey

I've added the stack trace as well if that is of any help to someone.
[code]http-8081-Processor 16 id=63 idx=0x78 tid=3460 lastJavaFrame=0x2FCFF3BC
Thread Stack Trace:
     at [email protected]+763()@0x341FC99D
     at Javacom_sap_mw_jco_rfc_MiddlewareRFC_nativeSetMode@12+6533()@0x341F3EFD
     at Javacom_sap_mw_jco_rfc_MiddlewareRFC_nativeSetMode@12+9731()@0x341F4B7B
     at [email protected]+2007()@0x341FC0EC
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     at com/sap/mw/jco/JCO$Client.execute(Lcom/sap/mw/jco/JCO$Function;)V(JCO.java:3129)[/code]

Stop External HD from Spinning Down?

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This may be a "feature" built into the firmware of your external drive. If so it will not be affected by your Energy Saver settings. I recently had to advise someone with a "Western Digital MyBook" spinning down to ask the manufacturer for help, but the outcome was that the only solution was the purchase of an uncrippled drive. Being in the firmware, the "feature" could not be erased or altered.
"Is it possible to stop…"
Yes, but only in what I would consider an unacceptable manner, e.g. by having a small script that constantly accesses the drive, but I would suggest that a) it should not be needed, and b) it would be highly likely to interfere with other things you were doing.
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Hi Friends,
I am a java developer in trouble with a ABAP/RFC, and I dont have idea whoe lese ask for help
This is the situation:
In order to send a "candidates resume" (curriculum) in to SAP,
the ABAP developers made for me a RFC which uses the transaction PB10 (applicant master data).
The rFC when tested in the SAP GUI works fine.
I wrote a java client which calls the RFC, send the parameters and expect the results.
This client uses JCO to access SAP.
But, from the java client the RFC works PARTIALLY.
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but doesnt fill the education a qualifications (infotypes 22 and 24).
I am trying to figure why.
Some of the internal ABAP errors code that we get are:
DC -006
PA -054
5A -135
Also I get this message:
"Exception condition "CNTL_ERROR" raised"
Please, I am a java-per lost in the SAP land.
Thanks in advance by any help!!!
PD: I could sent you the ABAP code of the RFC or the java code of the client if necessary.

That CNTL_ERROR tells me that its trying to access a gui control which I don't is possible thru jCo. Gui Controls are very dependent on the SAP Gui Frontend. Since you are calling the transaction thru jCo, it oviously doesn't know what to do with it. Any chance that you can get a hold of the ABAP developer which wrote it initially? Maybe there is another transaction that can be used instead of the PB10 transaction.
Regards,
Rich Heilman

Calling external Java from ABAP using JCo?

Does anyone know if one can use JCo to write a server application that can be called from ABAP.
We are presently using JCo to communicate from Java to SAP.
But we need to call an external Java program from within ABAP.
Is this possible?
Thanks for any input.
Fred

Hi Gregor,
I was hoping you would reply to this -- these posted messages had been here for quite sometime now.
Anyway, here's the case. Our Basis team is installing the JCo in our SAP development server. This is our first time to implement this technology, so no one has a clue at all.
Got a couple of questions for you...
1. What do we need the JDK for? Is it mainly for editing, running, and compiling java files (e.g. Example5.java)?
2. Does the JDK need to be installed at the SAP server as well? Or it doesn't matter, as long as the java files will be accessible from where it was installed at?
Thanks for any response!

Abap Rfc External Debug from a Jco Client Connection

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