Error while obtaining JCO connection when creating JCO connection

[Former Member]

Hey,

im having a problem when creating a JCO connection in the Web Dynpro Content Administrator. Creating the Modeldata (Application Data Data type) JCO Worked but when creating the JCO for the RFC Metadata (Dictionary Meta data) there is a problem:

In step 3.2 Msg server connection I cannot specify a system name and logon group, only the message server can be selected with the dropdown box.

After pushing the finish button i get the following stacktrace:

Failed to create new JCO client connection WD_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:150) at

com.sap.tc.webdynpro.serverimpl.wdc.sl.SystemLandscapeFactory.createJCOClientConnection(SystemLandscapeFactory.java:356) 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: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.task.WebDynproMainTask.handleAction(WebDynproMainTask.java:101) at

com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.handleActionEvent(WebDynproMainTask.java:304) at

com.sap.tc.webdynpro.clientserver.task.WebDynproMainTask.execute(WebDynproMainTask.java:649) at

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

com.sap.tc.webdynpro.clientserver.cal.ClientManager.doProcessing(ClientManager.java:248) 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: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:95) at

com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:160) Caused by: com.sap.tc.webdynpro.services.exceptions.WDRuntimeException: Failed to resolve connection parameter for WD_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:248) at

com.sap.tc.webdynpro.serverimpl.core.sl.AbstractJCOClientConnection.<init>(AbstractJCOClientConnection.java:222) 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:148) ... 30 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) ... 35 more

We are running WebAS 640 SP 14 on Unix.

Greetings,

Hannes

Message was edited by: Hannes Defloo

[Former Member · Accepted solution]

Hi

Please configure your SLD. Your SLD holds the system definition. Define a SAP WebAS abap system and then try to create a Metadata connection using WebDynpro content administrator. Now you will be able to see the msg server defined in the dropdown. Also ensure that you have the message server entry in your services file.

Refer these links for SLD

http://help.sap.com/saphelp_nw04/helpdata/en/c9/dc37520bdf4b48bb8f6d4329f073d5/content.htm

http://help.sap.com/saphelp_nw04/helpdata/en/24/8fa93e08503614e10000000a114084/content.htm

Hope that helps.

regards

Ravi

[Former Member · Accepted solution]

Hey,

i can see and select the correct message server in the dropdown box, so i think the sld settings are ok. I just cant specify the system name and logon group which i find strange ..

[Former Member · Accepted solution]

Have you defined a logon group in the backend system?

[Former Member · Accepted solution]

Yes we did, and i can see it in saplogon so that should be ok ..

[Former Member · Accepted solution]

Very strange .. i created another application in developer studion and then i could see the logon group and system name.

Dont understand it but it works now ..

grtz