CNTR0020E: EJB threw an unexpected (non-declared) exception during invocation of method “bpc_invoke” on bean “BeanId(XXXApp#XXXEJB.jar#component.XXXX, null)”. Exception data: com.ibm.bpe.database.TomDuplicateKeyException: (com.ibm.bpe.database.CorrelationSetInstanceB: PNUDx)
This is the exception I got when I tried to send an event to an operation. The complete stacktrace of the application is

CNTR0020E: EJB threw an unexpected (non-declared) exception during invocation of method "bpc_invoke" on [...]

Invoke Activity
As the name suggests Invoke activity of WebSphere Process Server or WebSphere Integration Developer is used for invoking services that are not part of a business processes. The Invoke activity would call an operation of another service. These services can be web services, human tasks etc. An Invoke activity needs a reference partner which [...]

Reference Partners
A business process in WebSphere Process Server may need to invoke some services that are not part of the business process design. These services can be external services that implement business logic or a human task that performs some action. In any case these services or human tasks are not part of the business [...]

One more types of errors with JDBC Adapter. After setting up the JDBC Adapter, I was getting an error message as shown below from my JDBC Adapter module.

[6/12/08 15:58:44:565 IST] 00000069 SecurityColla A SECJ0053E: Authorization failed for /UNAUTHENTICATED while invoking (Bean)ejb/com/ibm/events/bus/EventBus createEvent(org.eclipse.hyades.logging.events.cbe.CommonBaseEvent):3 securityName: /UNAUTHENTICATED;accessID: UNAUTHENTICATED is not granted any of the required roles: [...]

Today I was working on JDBC Adapter. I created the project and completed all the required configurations. I have created a new J2C Authentication data also. Everything looked perfect in my WebSphere Integration Developer. However when I deployed this application, I started to get the following error.

[6/12/08 14:23:40:826 IST] 00000066 ResourceAdapt E com.ibm.j2ca.jdbc.inbound.JDBCInboundDBHandler getDBConnection [...]

Faults and Fault Handlers
A fault in WebSphere Process Server is an exceptional condition that can alter the normal flow of a business process. Faults are the errors occurred while invoking a business process. We can handle these errors or faults by using a fault handler. Fault handlers declare the faults that can be handled. The [...]

Remove recent workspaces from WID workspace selector dialog box.
If we want to remove or edit the recent workspace list from WebSphere Integration Developer Workspace launcher dialog box, follow the following instructions.
Go to WID_INSTALL_DIR\eclipse\configuration\org.eclipse.ui.ide\ and edit the recentWorkspaces.xml. There will be some entries like

<recentWorkspaces maxLength="5">
<workspace path="D:\Workspace\WID"/>
</recentWorkspaces>

Remove the entry you want and save the file. Next [...]

Correlation sets.
Correlation sets are used for associating messages from outside the process to the correct process instance. Usually correlation sets are used with state machines. However we can use correlation sets with business processes also. A long running business process can have and will have more than once instances of the processes running at a [...]

Starting a long running business process using EJB API in WebSphere Process Server
We can start a long running business process in WebSphere process server either by using Web service API or by using EJB API. To start a process using EJB API, the only parameter we need is the process name. The code for the [...]

The WPS generic web service would work only if we have the security is turned on in WPS server.
To start a long running business process using web service, we need to generate the WSDL clients for generic WPS APIs. To get the generic web service files
logon to admin console. Click on Applications -> [...]