Having issues calling EJB3 from BPEL failing xmlparserv2 error.

Question

Oracle/BPEL 10.1.3.4
Description :
I am having errors in orabpel during marshalling of EJB call using WSIF. missing class JXDocumentBuilderFactory see ERROR 1 for details. I generated proxy classes using schemac against the document type I want to pass to EJB from BPEL. The proxy requirs the missing class. I worked for 3 days trying various things and only after unzipping jar file to classes directory defined in oracle.bpel.common was I able to execute the call successfully. As luck would have it on reboot the app server failed to start .
I cannot find where anybody has commented on the reliable use of WSIF and EJB with BPEL in one cantainer anb EJB in a different container. I do see some old blogs about using EJB 2.1 with orabpel and EJB in the same container. I assume if others were doing this it should work out of the box.
Question :How do you use BPEL to invoke your business logic? WSIF with proxy classes seemed like the best performance solution to me. Do you use webservices? Have you seen this error before?
I would REALLY appreciate your feedback! Thanks in advance John
ERROR 1:
oracle.classloader.util.AnnotatedNoClassDefFoundError:
Missing class: oracle.xml.jaxp.JXDocumentBuilderFactory
Dependent class: com.collaxa.cube.xml.BaseFacade
Loader: oracle.bpel.common:10.1.3
Code-Source: /C:/product/10.1.3.1/OracleAS_1/bpel/lib/orabpel.jar
Configuration: <code-source> in /c:/product/10.1.3.1/OracleAS_1/j2ee/home/config/server.xml
The missing class is available from the following locations:
     1. Code-Source: /C:/product/10.1.3.1/OracleAS_1/lib/xmlparserv2.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\product\10.1.3.1\OracleAS_1\j2ee\home\oc4j.jar)
     This code-source is available in loader oracle.xml:10.1.0_2.
; nested exception is:
     oracle.classloader.util.AnnotatedNoClassDefFoundError:
     Missing class: oracle.xml.jaxp.JXDocumentBuilderFactory
     Dependent class: com.collaxa.cube.xml.BaseFacade
     Loader: oracle.bpel.common:10.1.3
     Code-Source: /C:/product/10.1.3.1/OracleAS_1/bpel/lib/orabpel.jar
     Configuration: <code-source> in /c:/product/10.1.3.1/OracleAS_1/j2ee/home/config/server.xml
The missing class is available from the following locations:
     1. Code-Source: /C:/product/10.1.3.1/OracleAS_1/lib/xmlparserv2.jar (from <code-source> (ignore manifest Class-Path) in META-INF/boot.xml in C:\product\10.1.3.1\OracleAS_1\j2ee\home\oc4j.jar)
     This code-source is available in loader oracle.xml:10.1.0_2.

Answer 1

Ok,
I found that EJBBinding annotation does accomplish wsdl creation when the deployment occurs, the WSDL is not in a file but rather you can get to it with enterprise manager (10.1.3.4) find your service and test it. After selecting a means to test (http or https) the next page will show a link "Service Description" The url that comes up looks something like http://thehostname/MyApplication/MyService?WSDL.
When you create a the stateless ejb tell it to expose as Webservice and select generate WSIF bindings.
Just put the following annotation on your Webservice interface.
In this case my "WorkItemFacade" listed below is the name of my implementation.
// Indicates that this is indeed a web service
@WebService
// generates WSIF EJB Bindings for NON soap marshalling
@WSIFEJBBinding( className="proto.model.WorkItemFacade",
initialContextFactory="oracle.j2ee.rmi.RMIInitialContextFactory",
jndiProviderUrl="opmn:ormi://zdeploymentHost:6003:zInstanceName-home/zEJBMODULESName-ejb6
// Class name becomes the name of the service in the wsdl
public interface WorkItemWebService extends Remote {
boolean verify( String s_xchg_doc) throws RemoteException;
void add( String s_xchg_doc) throws RemoteException;
When you are in BPEL where it asks for a wsdl for the invoke of a partner link put the url in that you obtained before in test e.g. http://thehostname/MyApplication/MyService?WSDL
This will of course require your app server to be up and with the EJB deployed.
Hope this helps someone in similar circumstance.
John