Oracle, XA, and MBeans

[divine_comedy]

Hi all, I am trying to change my oracle configuration to XA. I came up with an oracle-xa-service.xml that deploys. I also have an MBean that looks for an entity bean during startup but it's throwing the following :13:36:25,048 ERROR [JDBCFinderCommand] Failed to create finder results
java.lang.IllegalArgumentException: null xaRes
at org.jboss.tm.TxCapsule.enlistResource(TxCapsule.java:646)
at org.jboss.tm.TransactionImpl.enlistResource(TransactionImpl.java:102)
at org.jboss.resource.connectionmanager.XATxConnectionManager$XAConnectionEventListener.enlist(XATxConnectionManager.java:262)
at org.jboss.resource.connectionmanager.XATxConnectionManager.managedConnectionReconnected(XATxConnectionManager.java:202)
at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:534)
at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:814)
at org.jboss.resource.adapter.jdbc.JDBCDataSource.getConnection(JDBCDataSource.java:110)
at org.jboss.ejb.plugins.jaws.jdbc.JDBCCommand.getConnection(JDBCCommand.java:700)
at org.jboss.ejb.plugins.jaws.jdbc.JDBCCommand.jdbcExecute(JDBCCommand.java:168)
at org.jboss.ejb.plugins.jaws.jdbc.JDBCFinderCommand.execute(JDBCFinderCommand.java:116)
at org.jboss.ejb.plugins.jaws.jdbc.JDBCFindEntitiesCommand.execute(JDBCFindEntitiesCommand.java:200)
at org.jboss.ejb.plugins.jaws.JAWSPersistenceManager.findEntities(JAWSPersistenceManager.java:271)
at org.jboss.ejb.plugins.CMPPersistenceManager.findEntities(CMPPersistenceManager.java:348)
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.findEntities(CachedConnectionInterceptor.java:323)
at org.jboss.ejb.EntityContainer.find(EntityContainer.java:665)
at java.lang.reflect.Method.invoke(Native Method)

Anybody knows what's happening ? I am not using any transactions in the MBeans, and the entity bean I am looking up has a transaction attribute : Required.

Thanks

NB : My JBoss : 3.0.4 and I am using the classes12.zip (Oracle Drivers)

[divine_comedy]

By the way, this works if I am not using XA.

[divine_comedy]

Also looking at the sample oracle-xa-service.xml, it's using OCI instead of thin, does that matter. I changed to OCI, and now JBoss complains that it's missing something related to Oracle9.