I wanted to run the JBoss AS testsuite with CMR datasource being configured as the only (main) datasource for the tests. This means that I reconfigured ExampleDS datasource to be CMR.

The tests which runs against the ExampleDS datasource fails with the following errors in log [1].

I tried reconfigured the ExampleDS to be run against the same database account but without the CMR would be configured and the tests pass.
I've checked the existence of 'xids' table in the database and it does exist and is writable under the account.

So it seems to me that there is some trouble in TM and CMR handling. If the error is not on my side of the configuration then I think this is quite bad. The JBoss AS testsuite should work with simple CMR.

Can you, please, look at this?

[1]
17:31:22,837 TRACE [com.arjuna.ats.jta] (EJB default - 2) TransactionImple.registerSynchronization
17:31:22,837 WARN  [com.arjuna.ats.arjuna] (EJB default - 2) Could not register synchronization for CommitMarkableResourceRecord: java.lang.IllegalStateException: ARJUNA016082: Synchronizations are not allowed! Transaction status isActionStatus.RUNNING
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.registerSynchronizationImple(TransactionImple.java:384)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.registerSynchronization(TransactionImple.java:361)
 at com.arjuna.ats.internal.jta.resources.arjunacore.CommitMarkableResourceRecord.<init>(CommitMarkableResourceRecord.java:262)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.createRecord(TransactionImple.java:784)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.enlistResource(TransactionImple.java:644)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.enlistResource(TransactionImple.java:407)
 at org.jboss.jca.core.connectionmanager.listener.TxConnectionListener$TransactionSynchronization.enlist(TxConnectionListener.java:692)
 at org.jboss.jca.core.connectionmanager.listener.TxConnectionListener.enlist(TxConnectionListener.java:338)
 at org.jboss.jca.core.connectionmanager.tx.TxConnectionManagerImpl.managedConnectionReconnected(TxConnectionManagerImpl.java:483)
 at org.jboss.jca.core.connectionmanager.AbstractConnectionManager.reconnectManagedConnection(AbstractConnectionManager.java:623)
 at org.jboss.jca.core.connectionmanager.AbstractConnectionManager.allocateConnection(AbstractConnectionManager.java:491)
 at org.jboss.jca.adapters.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:143)
 at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:70)
 at org.hibernate.internal.AbstractSessionImpl$NonContextualJdbcConnectionAccess.obtainConnection(AbstractSessionImpl.java:301)
 at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.obtainConnection(LogicalConnectionImpl.java:214)
 at org.hibernate.engine.jdbc.internal.LogicalConnectionImpl.getConnection(LogicalConnectionImpl.java:157)
 at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.connection(StatementPreparerImpl.java:56)
 at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$1.doPrepare(StatementPreparerImpl.java:96)
 at org.hibernate.engine.jdbc.internal.StatementPreparerImpl$StatementPreparationTemplate.prepareStatement(StatementPreparerImpl.java:183)
 at org.hibernate.engine.jdbc.internal.StatementPreparerImpl.prepareStatement(StatementPreparerImpl.java:89)
 at org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl.buildBatchStatement(AbstractBatchImpl.java:146)
 at org.hibernate.engine.jdbc.batch.internal.AbstractBatchImpl.getBatchStatement(AbstractBatchImpl.java:135)
 at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3057)
 at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3521)
 at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:88)
 at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:395)
 at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:387)
 at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:303)
 at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:349)
 at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:56)
 at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1159)
 at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:404)
 at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorNonTrackingImpl.beforeCompletion(SynchronizationCallbackCoordinatorNonTrackingImpl.java:105)
 at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53)
 at com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.beforeCompletion(SynchronizationImple.java:76)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.beforeCompletion(TwoPhaseCoordinator.java:273)
 at com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.end(TwoPhaseCoordinator.java:93)
 at com.arjuna.ats.arjuna.AtomicAction.commit(AtomicAction.java:162)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.commitAndDisassociate(TransactionImple.java:1189)
 at com.arjuna.ats.internal.jta.transaction.arjunacore.BaseTransaction.commit(BaseTransaction.java:126)
 at com.arjuna.ats.jbossatx.BaseTransactionManagerDelegate.commit(BaseTransactionManagerDelegate.java:75)
 at org.jboss.as.ejb3.remote.protocol.versionone.UserTransactionCommitTask.manageTransaction(UserTransactionCommitTask.java:48)
 at org.jboss.as.ejb3.remote.protocol.versionone.UserTransactionManagementTask.run(UserTransactionManagementTask.java:61)
 at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) [rt.jar:1.7.0_51]
 at java.util.concurrent.FutureTask.run(FutureTask.java:262) [rt.jar:1.7.0_51]
 at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) [rt.jar:1.7.0_51]
 at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [rt.jar:1.7.0_51]
 at java.lang.Thread.run(Thread.java:744) [rt.jar:1.7.0_51]
 at org.jboss.threads.JBossThread.run(JBossThread.java:122) [jboss-threads-2.1.1.Final-redhat-1.jar:2.1.1.Final-redhat-1]

17:31:22,844 TRACE [com.arjuna.ats.jta] (EJB default - 2) TransactionImple.setRollbackOnly
17:31:22,844 TRACE [com.arjuna.ats.arjuna] (EJB default - 2) BasicAction::preventCommit( BasicAction: 0:ffff7f000001:67f9ad09:536a51c3:d status: ActionStatus.RUNNING)