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Error while obtaining JCO connection when creating JCO connection


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: Error while obtaining JCO connection. at at at at at at at at at at at at at at at at

javax.servlet.http.HttpServlet.service( at

javax.servlet.http.HttpServlet.service( at at at at at at at at at at at at Method) at at Caused by: Failed to resolve connection parameter for WD_RFC_METADATA_DEST at at at at<init>( at<init>( at ... 30 more Caused by: java.lang.NullPointerException at java.util.Hashtable.put( at ... 35 more

We are running WebAS 640 SP 14 on Unix.



Message was edited by: Hannes Defloo

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    author's profile photo Former Member
    Former Member
    Posted on Dec 05, 2005 at 01:54 PM


    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

    Hope that helps.



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