How to invoke BPEL by J2EE application?

Hi all,
I developed a BPEL application and J2EE application.
Now I want to invoke BPEL by J2EE.
How to do it? (Please give me detail steps and needed environment)
Thanks in advance!

Hi,
Thanks for your reply.
I think J2EE and BPEL are different part.
They are independent under normal circumstances. If we have to integrate with both, we have to take some steps.
If we re-development BPEL and J2EE, we need to take following steps:
1. Create J2EE project.
2. Create java class for business logic.
3. Change the java class in step 2 into web service.
4. Crete BPEL we have to invoke in project.
5. Create the link between BPEL and web service in step3.
6. Generate service proxy by using SOAP/HTTP for BPEL.
7. Publish and deploy the j2EE and BPEL.
8. Start from JSP page in J2EE application in step1.
Maybe it is not correct, please correct it.

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java.lang.Exception: Failed to create "ejb/collaxa/system/DeliveryBean" bean; exception reported is: "javax.naming.NameNotFoundException: ejb/collaxa/system/DeliveryBean not found at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.rmi.RMIServerContext.lookup(RMIServerContext.java:207) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.ApplicationContext.unprivileged_lookup(ApplicationContext.java:255) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.ApplicationContext.lookup(ApplicationContext.java:195) at javax.naming.InitialContext.lookup(InitialContext.java:351) at com.oracle.bpel.client.util.BeanRegistry.lookupDeliveryBean(BeanRegistry.java:279) at com.oracle.bpel.client.delivery.DeliveryService.getDeliveryBean(DeliveryService.java:250) at com.oracle.bpel.client.delivery.DeliveryService.post(DeliveryService.java:174) at com.oracle.bpel.client.delivery.DeliveryService.post(DeliveryService.java:149) at _helloworld._jspService(_helloworld.java:63) [helloworld.jsp] at com.orionserver[Oracle Containers for J2EE 10g (10.1.3.1.0) ].http.OrionHttpJspPage.service(OrionHttpJspPage.java:59) at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:453) at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:591) at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:515) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:711) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:368) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:866) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) 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].server.http.ServletRequestDispatcher.invoke(ServletRequestDispatcher.java:711) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.http.ServletRequestDispatcher.forwardInternal(ServletRequestDispatcher.java:368) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.http.HttpRequestHandler.doProcessRequest(HttpRequestHandler.java:866) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.http.HttpRequestHandler.processRequest(HttpRequestHandler.java:448) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.http.HttpRequestHandler.serveOneRequest(HttpRequestHandler.java:216) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:117) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.http.HttpRequestHandler.run(HttpRequestHandler.java:110) at oracle.oc4j.network.ServerSocketReadHandler$SafeRunnable.run(ServerSocketReadHandler.java:260) at oracle.oc4j.network.ServerSocketAcceptHandler.procClientSocket(ServerSocketAcceptHandler.java:239) at oracle.oc4j.network.ServerSocketAcceptHandler.access$700(ServerSocketAcceptHandler.java:34) at oracle.oc4j.network.ServerSocketAcceptHandler$AcceptHandlerHorse.run(ServerSocketAcceptHandler.java:880) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].util.ReleasableResourcePooledExecutor$MyWorker.run(ReleasableResourcePooledExecutor.java:298) at java.lang.Thread.run(Thread.java:595)Caused by: java.lang.Exception: Failed to create "ejb/collaxa/system/DeliveryBean" bean; exception reported is: "javax.naming.NameNotFoundException: ejb/collaxa/system/DeliveryBean not found at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.rmi.RMIServerContext.lookup(RMIServerContext.java:207) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.ApplicationContext.unprivileged_lookup(ApplicationContext.java:255) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) ].server.ApplicationContext.lookup(ApplicationContext.java:195) at javax.naming.InitialContext.lookup(InitialContext.java:351) at com.oracle.bpel.client.util.BeanRegistry.lookupDeliveryBean(BeanRegistry.java:279) at com.oracle.bpel.client.delivery.DeliveryService.getDeliveryBean(DeliveryService.java:250) at com.oracle.bpel.client.delivery.DeliveryService.post(DeliveryService.java:174) at com.oracle.bpel.client.delivery.DeliveryService.post(DeliveryService.java:149) at _helloworld._jspService(_helloworld.java:63) [helloworld.jsp] at com.orionserver[Oracle Containers for J2EE 10g (10.1.3.1.0) ].http.OrionHttpJspPage.service(OrionHttpJspPage.java:59) at oracle.jsp.runtimev2.JspPageTable.service(JspPageTable.java:453) at oracle.jsp.runtimev2.JspServlet.internalService(JspServlet.java:591) at oracle.jsp.runtimev2.JspServlet.service(JspServlet.java:515) at javax.servlet.http.HttpServlet.service(HttpServlet.java:856) at com.evermind[Oracle Containers for J2EE 10g (10.1.3.1.0) 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How to invoke BPEL by J2EE application?

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