Strange Lookup Error (SAP Resource Adapter)

Question

Hi all,
I received a quite stange error (Below you can see the relavent part of the logfile).
While the first attempt to get the ConnectionFactory of the SAP JRA succeeds, the second one fails. As you can see,  context and parameters of the lookup are exactly the same. Does anybody has experiences with this problem?
Thanks a lot
Nadine
<b>1st attempt</b>
DEBUG SAPEngine_Application_Thread[impl:3]_18 com.xxx.ik.ejb.srouter.util.SystemRouterUtil - return jca
name: java:comp/env/SAPJCA
INFO SAPEngine_Application_Thread[impl:3]_18 com.xxx.ik.ejb.sap.generic.bo.SAPGenericBO - search for
JCA Adapter: java:comp/env/SAPJCA
DEBUG SAPEngine_Application_Thread[impl:3]_18 com.xxx.ik.ejb.sap.generic.bo.SAPGenericBO -
connectionfactory: com.sap.mw.jco.jra.JRA$ConnectionFactoryImpl@1d4445d
<b>2nd attempt</b>
DEBUG SAPEngine_Application_Thread[impl:3]_1 com.xxx.ik.ejb.srouter.util.SystemRouterUtil - return jca
name: java:comp/env/SAPJCA
INFO SAPEngine_Application_Thread[impl:3]_1 com.xxx.ik.ejb.sap.generic.bo.SAPGenericBO - search for JCA Adapter: java:comp/env/SAPJCA
ERROR SAPEngine_Application_Thread[impl:3]_1 com.xxx.ik.ejb.sap.generic.bo.SAPGenericBO -
com.sap.engine.services.jndi.persistent.exceptions.NameNotFoundException: Path to object does not exist at java:comp, the whole lookup name is java:comp/env/SAPJCA.

Answer 1

Hi Vladimir,
First of all, thanks a lot for your answer.
I'm sure the application was not restarted or redeployed (as only about one minute has passed between the two attempts). During the processing of our application, this resource adapter (and the class that calls it) is used two times.
I searched the JNDI tree as you recommended and found:
* ejbContexts [Context]
    * t-systems.com [Context]
      * Integrationkernel [Context]
        * sap [Context]
          * generic [Context]
            * SAPGenericEJB [Context]
              * java:comp [Context]
                ORB
                HandleDelegate
                UserTransaction
                * env [Context]
                  SAPJCA
As I am only migrating this application, I just had a deeper look into method calls.
The application consists of a web app which calls ejbs. The EJBs in turn are just Wrapper for the so called BusinessObjects (Beans). In the first attempt the SAPGenericEJB calls the SAPGenericBO which does the lookup. In the second attempt, the SAPGenericBO is called directly from a workflow-engine. Could it be, that this causes the problem? If so, what can I do? Define the resource reference in the WF-Module too? Thanks...
Nadine
Message was edited by: Nadine Kress