Local transaction support when BPEL invokes JCA adapter

Question

Hi all,
I've implemented a BPEL process consisting of multiple invoke activities to my (custom) JCA Resource Adapter which connects to an EIS.
My concern is to support local transactions. Here are some code snippets describing what I've done so far.
Declare the transaction support at deployment time (ra.xml)
<transaction-support>LocalTransaction</transaction-support>Implementer class of ManagedConnection interface
public class MyManagedConnection implements ManagedConnection {
     public XAResource getXAResource() throws ResourceException {
         throw new NotSupportedException("XA Transactions not supported");
     public LocalTransaction getLocalTransaction() throws ResourceException {
         return new MyLocalTransaction(this);
        public void sendTheEvent(int eventType, Object connectionHandle) {
             ConnectionEvent event = new ConnectionEvent(this, eventType);
             if (connectionHandle != null) {
                event.setConnectionHandle(connectionHandle);
            ConnectionEventListener listener = getEventListener();
         switch (eventType) {
          case ConnectionEvent.CONNECTION_CLOSED:
               listener.connectionClosed(event); break;
          case ConnectionEvent.LOCAL_TRANSACTION_STARTED:
               listener.localTransactionStarted(event); break;
          case ConnectionEvent.LOCAL_TRANSACTION_COMMITTED:
               listener.localTransactionCommitted(event); break;
          case ConnectionEvent.LOCAL_TRANSACTION_ROLLEDBACK:
               listener.localTransactionRolledback(event); break;
          case ConnectionEvent.CONNECTION_ERROR_OCCURRED:
               listener.connectionErrorOccurred(event); break;
          default: break;
}Implementer class of LocalTransaction interface
public class MyLocalTransaction implements javax.resource.spi.LocalTransaction {
     private MyManagedConnection mc = null;
     public MyLocalTransaction(MyManagedConnection mc) {
         this.mc = mc;
     @Overide
     public void begin() throws ResourceException {
         mc.sendTheEvent(ConnectionEvent.LOCAL_TRANSACTION_STARTED, mc);
     @Override
     public void commit() throws ResourceException {
         eis.commit(); //eis specific method
         mc.sendTheEvent(ConnectionEvent.LOCAL_TRANSACTION_COMMITTED, mc);
     @Override
     public void rollback() throws ResourceException {
         eis.rollback(); //eis specific method
         mc.sendTheEvent(ConnectionEvent.LOCAL_TRANSACTION_ROLLEDBACK, mc);
}Uppon BPEL process completion, MyLocalTransaction.commit() is called. However, localTransactionCommitted(event) fails and I get the following error:
Error committing transaction:; nested exception is: weblogic.transaction.nonxa.NonXAException: java.lang.IllegalStateException:
[Connector:199175]This ManagedConnection is managed by container for its transactional behavior and has been enlisted to JTA transaction by container;
application/adapter must not call the local transaction begin/commit/rollback API. Reject event LOCAL_TRANSACTION_COMMITTED from adapter.Could someone give me some directions to proceed ?
My current installation consists of:
1. Oracle SOA Suite / JDeveoper 11g (11.1.1.4.0),
2. WebLogic Server 10.3.4
Thank you for your time,
George

Answer 1

Hi Vlad, thank you again for your immediate response.
With regards to your first comment. I already have been using logs, so I confirm that neither javax.resource.spi.LocalTransaction#begin() nor javax.resource.spi.LocalTransaction#commit()
is called in the 2nd run.
I think it might be helpful for our discussion if I give you the call trace for a successful (the first one) run.
After I deploy my custom JCA Resource Adapter, I create a javax.resource.cci.ConnectionFactory through Oracle EM web application and the following methods are called:
-- MyManagedConnectionFactory()
(Constructor of the implementer class of the javax.resource.spi.ManagedConnectionFactory interface)
-- javax.resource.spi.ManagedConnectionFactory#createManagedConnection(javax.security.auth.Subject, javax.resource.spi.ConnectionRequestInfo)
-- MyManagedConnection()
(Constructor of the implementer class of the javax.resource.spi.ManagedConnection interface)
-- javax.resource.spi.ManagedConnection#addConnectionEventListener(javax.resource.spi.ConnectionEventListener)
-- javax.resource.spi.ManagedConnection#getLocalTransaction()
-- MySpiLocalTransaction(MyManagedConnection)
(Constructor of the implementer class of the javax.resource.spi.LocalTransaction interface)
-- javax.resource.spi.ManagedConnectionFactory#createConnectionFactory(javax.resource.spi.ConnectionManager)
-- MyConnectionFactory(javax.resource.spi.ManagedConnectionFactory, javax.resource.spi.ConnectionManager)
(Constructor of the implementer class of the javax.resource.cci.ConnectionFactory interface)BPEL process consists of multiple invoke activities to my (custom) JCA Resource Adapter which connects to an EIS. Client tester invokes BPEL process, and execution starts.
Here is the method call trace for the last invoke (after which, commit is executed). The logs for all the rest invocations are identical:
-- javax.resource.cci.ConnectionFactory#getConnection()
-- javax.resource.spi.ManagedConnection#getConnection(javax.security.auth.Subject, javax.resource.spi.ConnectionRequestInfo)
-- MyConnection(MyManagedConnection)
(Constructor of the implementer class of the javax.resource.cci.Connection interface)
-- javax.resource.cci.Connection#close()
(I don't understand why close() is called here, any idea ?)
-- javax.resource.cci.ConnectionFactory#getConnection()
-- javax.resource.spi.ManagedConnection#getConnection(javax.security.auth.Subject, javax.resource.spi.ConnectionRequestInfo)
-- MyConnection(MyManagedConnection)
(Constructor of the implementer class of the javax.resource.cci.Connection interface)
-- javax.resource.cci.Connection#createInteraction()
-- MyInteraction(javax.resource.cci.Connection)
(Constructor of the implementer class of the javax.resource.cci.Interaction interface)
-- javax.resource.cci.Interaction#execute(javax.resource.cci.InteractionSpec, javax.resource.cci.Record, javax.resource.cci.Record)
-- javax.resource.spi.LocalTransaction#commit()I would expect that after the last commit() - meaning that BPEL process is done, and its state is "Completed" - Weblogic server would call the following:
javax.resource.cci.Connection#close()However it doesn't. Do I miss something ?