Error while obtaining JCO connection

[Former Member]

Hi all,

I hve been trying to run the basic examples given under Webdynpro.

When i tried to deploy and run the project "FlightListApp" , the deployment is complete.

However it is not getting executed..

It says,

<b>com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Error while obtaining JCO connection.</b>

Stack Trace:

Web Dynpro client:

HTML Client

Web Dynpro client capabilities:

User agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1), 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: 6.4012.00.0000.20050509073444.0000 (release=630_VAL_REL, buildtime=2005-05-09:20:05:04[UTC], changelist=346209, host=PWDFM026)

Web Dynpro code generators of DC local/TutWD_FlightList:

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)

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)

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)

SapWebDynproGenerationTemplates: 6.4009.00.0000.20041102105304.0000 (release=630_REL, buildtime=2004-11-02:22:38:06[UTC], changelist=297524, host=PWDFM027)

SapWebDynproGenerationCTemplates: 6.4009.00.0000.20041102105304.0000 (release=630_REL, buildtime=2004-11-02:22:38:06[UTC], changelist=297524, host=PWDFM027)

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)

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)

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)

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)

SapDictionaryGenerationTemplates: (unknown)

Web Dynpro code generators of DC sap.com/tc_wdcorecomp:

No information available

Web Dynpro code generators of DC sap.com/tc_wddispwda:

No information available

J2EE Engine:

No information available

Java VM:

Java HotSpot(TM) Server VM, version: 1.4.2_08-b03, vendor: Sun Microsystems Inc.

Operating system:

Windows 2003, version: 5.2, architecture: x86

-

---

Error stacktrace:

com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Error while obtaining JCO connection.

at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker$1.fillSldConnection(DataTypeBroker.java:90)

at com.sap.dictionary.runtime.ProviderFactory.internalResolveLogicalNameToJCODestination(ProviderFactory.java:408)

at com.sap.dictionary.runtime.ProviderFactory.resolveLogicalNameToJCODestination(ProviderFactory.java:354)

at com.sap.dictionary.runtime.ProviderFactory.internalGetProvider(ProviderFactory.java:215)

at com.sap.dictionary.runtime.ProviderFactory.getProvider(ProviderFactory.java:180)

at com.sap.dictionary.runtime.DdDictionaryPool.getProvider(DdDictionaryPool.java:87)

at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:73)

at com.sap.dictionary.runtime.DdDictionaryPool.getDictionary(DdDictionaryPool.java:48)

at com.sap.dictionary.runtime.DdBroker.getDataType(DdBroker.java:149)

at com.sap.dictionary.runtime.DdBroker.getStructure(DdBroker.java:180)

at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker.getStructure(DataTypeBroker.java:303)

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

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

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

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

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

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

at com.sap.tc.webdynpro.progmodel.controller.Component.getCustomControllerInternal(Component.java:436)

at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:374)

at com.sap.tc.webdynpro.progmodel.controller.Component.getMappableContext(Component.java:403)

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

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

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

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

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

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

at com.sap.tc.webdynpro.progmodel.view.ViewManager.bind(ViewManager.java:398)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.getView(ViewManager.java:555)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.bindRoot(ViewManager.java:422)

at com.sap.tc.webdynpro.progmodel.view.ViewManager.init(ViewManager.java:130)

at com.sap.tc.webdynpro.progmodel.view.InterfaceView.initController(InterfaceView.java:41)

at com.sap.tc.webdynpro.progmodel.controller.Controller.init(Controller.java:200)

at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.displayToplevelComponent(ClientComponent.java:134)

at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.init(ClientApplication.java:373)

at com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:608)

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

at com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:252)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doWebDynproProcessing(DispatcherServlet.java:154)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doContent(DispatcherServlet.java:116)

at com.sap.tc.webdynpro.serverimpl.defaultimpl.DispatcherServlet.doGet(DispatcherServlet.java:48)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:392)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:266)

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.doPrivileged(Native Method)

at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:95)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:159)

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:140)

at com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.getJCOClientConnectionUnMapped(SystemLandscapeFactory.java:166)

at com.sap.tc.webdynpro.services.sal.sl.core.SystemLandscapeInternal.getJCOClientConnectionUnMapped(SystemLandscapeInternal.java:82)

at com.sap.tc.webdynpro.services.datatypes.core.DataTypeBroker$1.fillSldConnection(DataTypeBroker.java:77)

... 55 more

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)

... 58 more

Caused by: java.lang.NullPointerException

at java.util.Hashtable.put(Hashtable.java:393)

at com.sap.tc.webdynpro.serverimpl.wdc.sl.JCOClientConnection.resolveConnectionParameter4MsgServerJCODestinaton(JCOClientConnection.java:558)

... 63 more

Kindly help..

Thanks in Advance..

Venkat.

[Former Member · Accepted solution]

Hi,

You need to configure Logical system from Web Dynpro content admin.

you may find this useful:

https://forums.sdn.sap.com/emailsend.jspa?forumID=52&threadID=80024&messageID=865625

[Former Member · Accepted solution]

Hi Kranthi,

When i try to configure the JCO Connection Information under Webdynpro Content Admin..

A. WD_FLIGHTLIST_MODELDATA_DEST

The follg are avl to configure...

1. General Data 2.J2ee cluster 3.Connection Type

4. Appln Server Connection 5.Msg Server Connection

6.Security 7. Summary.

In these,

1. General Data - specified the client , which i am not able to find out.

4. Appln Server Connection - In this, i am not able to find out any Message Server's listed out..

..

When i bypass all these ..

the status has changed from red to green..

But ,

it gives an error " Error in obtaining JCO Connection"

[Former Member · Accepted solution]

hi Venkat,

If you have configured your sld correctly the message server should be shown there in Appln Server Connection.So configure your sld first

Regards

Rohit

[Former Member · Accepted solution]

Hi Venkat,

You need to first create technical system in SLD for your SAP system.

Goto http://<host>:<port>/sld

There, goto link Technical system-> create Technical system.

Here, choose Technical system for ABAP and pass all required parameters. You will get all required parameters from yuor SAP R/3 system's menu option System->status.

Regards,

Bhavik

[Former Member]

Hi Please configure the system landscape directory(SLD).

then create the JCO connections by supplying the proper userid and passowrd etc for the SAP system u r connectiong.

Satish

[Former Member]

Hi Venkat,

Have you configured your SLD?

If yes then check the parameters of your metadata JCO destination. Some parameter values are wrong or missing.

Also have you tested your JCO connections in Webdynpro content administrator?

Check at url: http://<host>:<port>/webdynpro/welcome

Regards,

Bhavik

[Former Member]

Hi venkat,

You havent configured the metadata correctly.Have you selected the dictionary metadata radio button when creating WD_FLIGHTLIST_RFC_METADATA_DEST

Regards

Rohit