Sorry about the double post in here and JBoss Transaction forum, but I'm not 
sure if my issue is with the transaction service or EJB3.

I have just re-configured my EJB3 application datasources from 
local-tx-datasources to xa-datasources.

Now when I run my application and the client app calls a Stateless Session Bean 
I get the following error in the JBoss server log:
The database connection appears to be running outside the XA transaction of the 
main call.


  | 2007-01-23 13:32:37,551 DEBUG 
[org.jboss.remoting.transport.socket.ServerThread] beginning dorun
  | 2007-01-23 13:32:37,610 DEBUG [org.hibernate.impl.SessionImpl] opened 
session at timestamp: 4790514309455872
  | 2007-01-23 13:32:37,610 DEBUG [org.hibernate.jdbc.JDBCContext] 
TransactionFactory reported no active transaction; Synchronization not 
registered
  | 2007-01-23 13:32:37,610 DEBUG [org.hibernate.ejb.AbstractEntityManagerImpl] 
Looking for a JTA transaction to join
  | 2007-01-23 13:32:37,626 DEBUG [org.hibernate.jdbc.JDBCContext] successfully 
registered Synchronization
  | 2007-01-23 13:32:37,627 DEBUG [org.hibernate.ejb.AbstractEntityManagerImpl] 
Looking for a JTA transaction to join
  | 2007-01-23 13:32:37,627 DEBUG [org.hibernate.ejb.AbstractEntityManagerImpl] 
Transaction already joined
  | 2007-01-23 13:32:37,633 DEBUG [org.hibernate.jdbc.AbstractBatcher] about to 
open PreparedStatement (open PreparedStatements: 0, globally: 0)
  | 2007-01-23 13:32:37,633 DEBUG [org.hibernate.jdbc.ConnectionManager] 
opening JDBC connection
  | 2007-01-23 13:32:37,633 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] subject: null
  | 2007-01-23 13:32:37,633 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] getManagedConnection 
trackByTx=false tx=null
  | 2007-01-23 13:32:37,633 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] Pre-enlist: [EMAIL 
PROTECTED] [EMAIL PROTECTED] handles=0 lastUse=1169558982432 permit=true 
trackByTx=false [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] 
txSync=null] threadTx=TransactionImpl:XidImpl[FormatId=257, GlobalId=wb370/14, 
BranchQual=, localId=14]
  | 2007-01-23 13:32:37,633 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] Get synchronizer 
[EMAIL PROTECTED] [EMAIL PROTECTED] handles=0 lastUse=1169558982432 permit=true 
trackByTx=false [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] 
txSync=null] threadTx=TransactionImpl:XidImpl[FormatId=257, GlobalId=wb370/14, 
BranchQual=, localId=14]
  | 2007-01-23 13:32:37,633 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] Enlisting resource 
[EMAIL PROTECTED] [EMAIL PROTECTED] handles=0 lastUse=1169558982432 permit=true 
trackByTx=false [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] 
txSync=TxSync335746051{tx=TransactionImpl:XidImpl[FormatId=257, 
GlobalId=wb370/14, BranchQual=, localId=14] wasTrackByTx=false enlisted=false}]
  | 2007-01-23 13:32:37,633 WARN  [org.jboss.tm.TransactionImpl] XAException: 
tx=TransactionImpl:XidImpl[FormatId=257, GlobalId=wb370/14, BranchQual=, 
localId=14] errorCode=XAER_OUTSIDE
  | com.ibm.db2.jcc.c.zh: XAER_OUTSIDE
  |         at com.ibm.db2.jcc.b.bc.a(bc.java:1651)
  |         at com.ibm.db2.jcc.b.bc.start(bc.java:1530)
  |         at 
org.jboss.resource.adapter.jdbc.xa.XAManagedConnection.start(XAManagedConnection.java:117)
  |         at 
org.jboss.tm.TransactionImpl$Resource.startResource(TransactionImpl.java:2063)
  |         at 
org.jboss.tm.TransactionImpl.enlistResource(TransactionImpl.java:581)
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener$TransactionSynchronization.enlist(TxConnectionManager.java:757)
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener.enlist(TxConnectionManager.java:548)
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager.managedConnectionReconnected(TxConnectionManager.java:323)
  |         at 
org.jboss.resource.connectionmanager.BaseConnectionManager2.reconnectManagedConnection(BaseConnectionManager2.java:501)
  |         at 
org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:382)
  |         at 
org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:812)
  |         at 
org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88)
  |         at 
org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:69)
  |         at 
org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:417)
  |         at 
org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
  |         at 
org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139)
  |         at 
org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1561)
  |         at org.hibernate.loader.Loader.doQuery(Loader.java:661)
  |         at 
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
  |         at org.hibernate.loader.Loader.doList(Loader.java:2145)
  |         at 
org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
  |         at org.hibernate.loader.Loader.list(Loader.java:2024)
  |         at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:392)
  |         at 
org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:333)
  |         at 
org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
  |         at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1114)
  |         at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
  |         at 
com.dolby.pics.model.dao.hibernate.UTInventoryNavigatorDAOHibernate.getBusinessUnitSubSystemWithInventory(UTInventoryNavigatorDAOHibernate.java:38)
  |         at 
com.dolby.pics.ut.ejb.bean.impl.UTInventoryNavigatorBean.getBusinessUnitSubSystemWithInventory(UTInventoryNavigatorBean.java:42)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
  |         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  |         at java.lang.reflect.Method.invoke(Method.java:615)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
  |         at 
org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
  |         at 
org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
  |         at 
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:227)
  |         at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
  |         at 
org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  |         at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  |         at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
  | 2007-01-23 13:32:37,648 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] Failed to enlist 
resource [EMAIL PROTECTED] [EMAIL PROTECTED] handles=0 lastUse=1169558982432 
permit=true trackByTx=false [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL 
PROTECTED] txSync=TxSync335746051{tx=TransactionImpl:XidImpl[FormatId=257, 
GlobalId=wb370/14, BranchQual=, localId=14] wasTrackByTx=false enlisted=false}]
  | java.lang.Throwable: Unabled to enlist resource, see the previous warnings.
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager.<clinit>(TxConnectionManager.java:130)
  |         at java.lang.J9VMInternals.initializeImpl(Native Method)
  |         at java.lang.J9VMInternals.initialize(J9VMInternals.java:177)
  |         at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native 
Method)
  |         at 
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:67)
  |         at 
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
  |         at java.lang.reflect.Constructor.newInstance(Constructor.java:521)
  |         at 
org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:1233)
  |         at 
org.jboss.mx.server.MBeanServerImpl.instantiate(MBeanServerImpl.java:286)
  |         at 
org.jboss.mx.server.MBeanServerImpl.createMBean(MBeanServerImpl.java:344)
  |         at org.jboss.system.ServiceCreator.install(ServiceCreator.java:157)
  |         at 
org.jboss.system.ServiceConfigurator.internalInstall(ServiceConfigurator.java:449)
  |         at 
org.jboss.system.ServiceConfigurator.install(ServiceConfigurator.java:171)
  |         at 
org.jboss.system.ServiceController.install(ServiceController.java:226)
  |         at sun.reflect.GeneratedMethodAccessor62.invoke(Unknown Source)
  |         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  |         at java.lang.reflect.Method.invoke(Method.java:615)
  |         at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  |         at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  |         at 
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
  |         at $Proxy4.install(Unknown Source)
  |         at org.jboss.deployment.SARDeployer.create(SARDeployer.java:249)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
  |         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  |         at java.lang.reflect.Method.invoke(Method.java:615)
  |         at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at 
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at 
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  |         at 
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
  |         at $Proxy54.create(Unknown Source)
  |         at 
org.jboss.deployment.XSLSubDeployer.create(XSLSubDeployer.java:192)
  |         at org.jboss.deployment.MainDeployer.create(MainDeployer.java:953)
  |         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:807)
  |         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
  |         at sun.reflect.GeneratedMethodAccessor60.invoke(Unknown Source)
  |         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  |         at java.lang.reflect.Method.invoke(Method.java:615)
  |         at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at 
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at 
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  |         at 
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
  |         at $Proxy8.deploy(Unknown Source)
  |         at 
org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
  |         at 
org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)
  |         at 
org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
  |         at 
org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)
  |         at 
org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
  |         at 
org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
  |         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  |         at java.lang.reflect.Method.invoke(Method.java:615)
  |         at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  |         at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  |         at 
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at 
org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
  |         at $Proxy0.start(Unknown Source)
  |         at 
org.jboss.system.ServiceController.start(ServiceController.java:417)
  |         at sun.reflect.GeneratedMethodAccessor5.invoke(Unknown Source)
  |         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  |         at java.lang.reflect.Method.invoke(Method.java:615)
  |         at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
  |         at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  |         at 
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
  |         at $Proxy4.start(Unknown Source)
  |         at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)
  |         at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007)
  |         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808)
  |         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
  |         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:755)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
  |         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  |         at java.lang.reflect.Method.invoke(Method.java:615)
  |         at 
org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
  |         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
  |         at 
org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at 
org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
  |         at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
  |         at 
org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
  |         at 
org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
  |         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
  |         at $Proxy5.deploy(Unknown Source)
  |         at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:482)
  |         at org.jboss.system.server.ServerImpl.start(ServerImpl.java:362)
  |         at org.jboss.Main.boot(Main.java:200)
  |         at org.jboss.Main$1.run(Main.java:464)
  |         at java.lang.Thread.run(Thread.java:797)
  | 2007-01-23 13:32:37,776 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] Check enlisted 
[EMAIL PROTECTED] [EMAIL PROTECTED] handles=0 lastUse=1169558982432 permit=true 
trackByTx=false [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] 
txSync=null] threadTx=TransactionImpl:XidImpl[FormatId=257, GlobalId=wb370/14, 
BranchQual=, localId=14]
  | 2007-01-23 13:32:37,776 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] Error enlisting 
resource in transaction=TransactionImpl:XidImpl[FormatId=257, 
GlobalId=wb370/14, BranchQual=, localId=14] [EMAIL PROTECTED] [EMAIL PROTECTED] 
handles=0 lastUse=1169558982432 permit=true trackByTx=false [EMAIL PROTECTED] 
[EMAIL PROTECTED] [EMAIL PROTECTED] txSync=null]
  | 2007-01-23 13:32:37,776 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] Could not enlist in 
transaction on entering meta-aware object! [EMAIL PROTECTED] [EMAIL PROTECTED] 
handles=0 lastUse=1169558982432 permit=true trackByTx=false [EMAIL PROTECTED] 
[EMAIL PROTECTED] [EMAIL PROTECTED] txSync=null]
  | javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist 
resource, see the previous warnings. tx=TransactionImpl:XidImpl[FormatId=257, 
GlobalId=wb370/14, BranchQual=, localId=14]
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener$TransactionSynchronization.checkEnlisted(TxConnectionManager.java:728)
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener.enlist(TxConnectionManager.java:561)
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager.managedConnectionReconnected(TxConnectionManager.java:323)
  |         at 
org.jboss.resource.connectionmanager.BaseConnectionManager2.reconnectManagedConnection(BaseConnectionManager2.java:501)
  |         at 
org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:382)
  |         at 
org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:812)
  |         at 
org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88)
  |         at 
org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:69)
  |         at 
org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:417)
  |         at 
org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
  |         at 
org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139)
  |         at 
org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1561)
  |         at org.hibernate.loader.Loader.doQuery(Loader.java:661)
  |         at 
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
  |         at org.hibernate.loader.Loader.doList(Loader.java:2145)
  |         at 
org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
  |         at org.hibernate.loader.Loader.list(Loader.java:2024)
  |         at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:392)
  |         at 
org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:333)
  |         at 
org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
  |         at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1114)
  |         at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
  |         at 
com.dolby.pics.model.dao.hibernate.UTInventoryNavigatorDAOHibernate.getBusinessUnitSubSystemWithInventory(UTInventoryNavigatorDAOHibernate.java:38)
  |         at 
com.dolby.pics.ut.ejb.bean.impl.UTInventoryNavigatorBean.getBusinessUnitSubSystemWithInventory(UTInventoryNavigatorBean.java:42)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
  |         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  |         at java.lang.reflect.Method.invoke(Method.java:615)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
  |         at 
org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
  |         at 
org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
  |         at 
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:227)
  |         at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
  |         at 
org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  |         at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  |         at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
  | 2007-01-23 13:32:37,791 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] delisting [EMAIL 
PROTECTED] [EMAIL PROTECTED] handles=0 lastUse=1169558982432 permit=true 
trackByTx=false [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] 
txSync=null]
  | 2007-01-23 13:32:37,791 TRACE 
[org.jboss.resource.connectionmanager.TxConnectionManager] Disconnected 
isManagedConnectionFree=true [EMAIL PROTECTED] [EMAIL PROTECTED] handles=0 
lastUse=1169558982432 permit=true trackByTx=false [EMAIL PROTECTED] [EMAIL 
PROTECTED] [EMAIL PROTECTED] txSync=null]
  | 2007-01-23 13:32:37,792 DEBUG [org.hibernate.util.JDBCExceptionReporter] 
Cannot open connection [???]
  | org.jboss.util.NestedSQLException: Could not enlist in transaction on 
entering meta-aware object!; - nested throwable: 
(javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist 
resource, see the previous warnings. tx=TransactionImpl:XidImpl[FormatId=257, 
GlobalId=wb370/14, BranchQual=, localId=14]); - nested throwable: 
(org.jboss.resource.JBossResourceException: Could not enlist in transaction on 
entering meta-aware object!; - nested throwable: 
(javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist 
resource, see the previous warnings. tx=TransactionImpl:XidImpl[FormatId=257, 
GlobalId=wb370/14, BranchQual=, localId=14]))
  |         at 
org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:94)
  |         at 
org.hibernate.connection.DatasourceConnectionProvider.getConnection(DatasourceConnectionProvider.java:69)
  |         at 
org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:417)
  |         at 
org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144)
  |         at 
org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139)
  |         at 
org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1561)
  |         at org.hibernate.loader.Loader.doQuery(Loader.java:661)
  |         at 
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224)
  |         at org.hibernate.loader.Loader.doList(Loader.java:2145)
  |         at 
org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2029)
  |         at org.hibernate.loader.Loader.list(Loader.java:2024)
  |         at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:392)
  |         at 
org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:333)
  |         at 
org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
  |         at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1114)
  |         at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
  |         at 
com.dolby.pics.model.dao.hibernate.UTInventoryNavigatorDAOHibernate.getBusinessUnitSubSystemWithInventory(UTInventoryNavigatorDAOHibernate.java:38)
  |         at 
com.dolby.pics.ut.ejb.bean.impl.UTInventoryNavigatorBean.getBusinessUnitSubSystemWithInventory(UTInventoryNavigatorBean.java:42)
  |         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  |         at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:64)
  |         at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  |         at java.lang.reflect.Method.invoke(Method.java:615)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
  |         at 
org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
  |         at 
org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79)
  |         at 
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:227)
  |         at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
  |         at 
org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  |         at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  |         at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
  | Caused by:
  | org.jboss.resource.JBossResourceException: Could not enlist in transaction 
on entering meta-aware object!; - nested throwable: 
(javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist 
resource, see the previous warnings. tx=TransactionImpl:XidImpl[FormatId=257, 
GlobalId=wb370/14, BranchQual=, localId=14])
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager.managedConnectionReconnected(TxConnectionManager.java:329)
  |         at 
org.jboss.resource.connectionmanager.BaseConnectionManager2.reconnectManagedConnection(BaseConnectionManager2.java:501)
  |         at 
org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:382)
  |         at 
org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:812)
  |         at 
org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88)
  |         ... 50 more
  | Caused by:
  | javax.transaction.SystemException: java.lang.Throwable: Unabled to enlist 
resource, see the previous warnings. tx=TransactionImpl:XidImpl[FormatId=257, 
GlobalId=wb370/14, BranchQual=, localId=14]
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener$TransactionSynchronization.checkEnlisted(TxConnectionManager.java:728)
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener.enlist(TxConnectionManager.java:561)
  |         at 
org.jboss.resource.connectionmanager.TxConnectionManager.managedConnectionReconnected(TxConnectionManager.java:323)
  |         ... 54 more
  | 2007-01-23 13:32:37,818 WARN  [org.hibernate.util.JDBCExceptionReporter] 
SQL Error: 0, SQLState: null
  | 2007-01-23 13:32:37,818 ERROR [org.hibernate.util.JDBCExceptionReporter] 
Could not enlist in transaction on entering meta-aware object!; - nested 
throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to 
enlist resource, see the previous warnings. 
tx=TransactionImpl:XidImpl[FormatId=257, GlobalId=wb370/14, BranchQual=, 
localId=14]); - nested throwable: (org.jboss.resource.JBossResourceException: 
Could not enlist in transaction on entering meta-aware object!; - nested 
throwable: (javax.transaction.SystemException: java.lang.Throwable: Unabled to 
enlist resource, see the previous warnings. 
tx=TransactionImpl:XidImpl[FormatId=257, GlobalId=wb370/14, BranchQual=, 
localId=14]))
  | 2007-01-23 13:32:37,819 WARN  [org.jboss.tm.TransactionImpl] XAException: 
tx=TransactionImpl:XidImpl[FormatId=257, GlobalId=wb370/14, BranchQual=, 
localId=14] errorCode=XAER_NOTA
  | com.ibm.db2.jcc.c.zh: XAER_NOTA
  |         at com.ibm.db2.jcc.b.bc.a(bc.java:1651)
  |         at com.ibm.db2.jcc.b.bc.b(bc.java:1060)
  |         at com.ibm.db2.jcc.b.bc.rollback(bc.java:1010)
  |         at 
org.jboss.resource.adapter.jdbc.xa.XAManagedConnection.rollback(XAManagedConnection.java:152)
  |         at 
org.jboss.tm.TransactionImpl$Resource.rollback(TransactionImpl.java:2277)
  |         at 
org.jboss.tm.TransactionImpl.rollbackResources(TransactionImpl.java:1837)
  |         at org.jboss.tm.TransactionImpl.rollback(TransactionImpl.java:412)
  |         at org.jboss.tm.TxManager.rollback(TxManager.java:364)
  |         at org.jboss.aspects.tx.TxPolicy.endTransaction(TxPolicy.java:167)
  |         at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:87)
  |         at 
org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
  |         at 
org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
  |         at 
org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:227)
  |         at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106)
  |         at 
org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82)
  |         at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828)
  |         at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398)
  |         at 
org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239)
  | 2007-01-23 13:32:37,829 DEBUG [org.hibernate.jdbc.JDBCContext] 
TransactionFactory reported no active transaction; Synchronization not 
registered
  | 2007-01-23 13:32:37,829 DEBUG [org.hibernate.jdbc.JDBCContext] 
TransactionFactory reported no active transaction; Synchronization not 
registered
  | 2007-01-23 13:32:37,830 DEBUG [org.hibernate.jdbc.JDBCContext] 
TransactionFactory reported no active transaction; Synchronization not 
registered
  | 2007-01-23 13:32:37,830 DEBUG 
[org.jboss.ejb3.entity.ManagedEntityManagerFactory] ************** closing 
entity managersession **************
  | 2007-01-23 13:32:37,830 DEBUG [org.hibernate.jdbc.JDBCContext] 
TransactionFactory reported no active transaction; Synchronization not 
registered
  | 2007-01-23 13:33:37,937 DEBUG 
[org.jboss.remoting.transport.socket.ServerThread] begin thread wait
  | 

My data source is conigured as follows:


  | <?xml version="1.0" encoding="UTF-8"?>
  | <datasources>
  |   <xa-datasource>
  |      <jndi-name>PicsDS</jndi-name>
  |      
<xa-datasource-class>com.ibm.db2.jcc.DB2XADataSource</xa-datasource-class>
  |      <xa-datasource-property 
name="DatabaseName">zcoreinv</xa-datasource-property>
  |      <xa-datasource-property name="User">zcoreinv</xa-datasource-property>
  |      <xa-datasource-property 
name="Password">zcoreinv</xa-datasource-property>
  |      <xa-datasource-property 
name="PortNumber">50000</xa-datasource-property>
  |      <xa-datasource-property 
name="ServerName">localhost</xa-datasource-property>
  |      <xa-datasource-property name="DriverType">4</xa-datasource-property>
  |       <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml 
(optional) -->
  |       <metadata>
  |          <type-mapping>DB2</type-mapping>
  |       </metadata>
  |    </xa-datasource>
  | </datasources>
  | 

The relevant EJB code...

1. The SLSB the client is calling

  | @Stateless
  | @TransactionManagement(value=TransactionManagementType.CONTAINER)
  | public class UTInventoryNavigatorBean extends AbstractSession implements 
IUTInventoryNavigatorLocal, IUTInventoryNavigatorRemote
  | {
  |     @EJB
  |     IUTDAOFactoryBean factory;
  | 
  |     /**
  |      * @see 
com.dolby.pics.ut.ejb.bean.IUTInventoryNavigator#getBusinessUnitSubSystemWithInventory()
  |      */
  |     @TransactionAttribute(value = TransactionAttributeType.REQUIRED)
  |     public List<?> getBusinessUnitSubSystemWithInventory()
  |     {
  |         return getDao().getBusinessUnitSubSystemWithInventory();
  |     }
  | 
  | 
  |     private IUTInventoryNavigatorDAO getDao()
  |     {
  |         return factory.getUTInventoryNavigatorDAO();
  |     }
  | }
  | 

2. The SLSB that UTInventoryNavigatorBean has injected at runtime into its 
factory field.

  | @Stateless
  | @TransactionManagement(value=TransactionManagementType.CONTAINER)
  | public class UTDAOFactoryBean implements IUTDAOFactoryBean
  | {
  | 
  |     @PersistenceContext(unitName=PICS.PERSISTENCE_CONTEXT_UNIT_NAME)
  |     Session session;
  |     /**
  |      *
  |      */
  |     public UTDAOFactoryBean()
  |     {
  |         super();
  |     }
  | 
  |     /**
  |      * @see 
com.dolby.pics.model.dao.IUTDAOFactory#getUTInventoryNavigatorDAO()
  |      */
  |     public IUTInventoryNavigatorDAO getUTInventoryNavigatorDAO() {
  |             return new UTInventoryNavigatorDAOHibernate(session);
  |     }
  | }
  | 

3. The DAO implementation

  | public class UTInventoryNavigatorDAOHibernate
  |             extends GenericHibernateDAO
  |             implements IUTInventoryNavigatorDAO {
  | 
  |     /**
  |      * @param session
  |      */
  |     public UTInventoryNavigatorDAOHibernate(final org.hibernate.Session 
session) 
  |     {
  |             super(session);
  |     }
  | 
  |     /**
  |      * @see 
com.dolby.pics.model.dao.IUTInventoryNavigatorDAO#getBusinessUnitSubSystemWithInventory()
  |      */
  |     @SuppressWarnings("unchecked") 
  |     public List<?> getBusinessUnitSubSystemWithInventory() 
  |     {
  |         final Query query = 
getCurrentSession().getNamedQuery(QueryBusinessUnitsWithInventory.NAME);
  |         final List<?> l = query.list();
  |         return l;
  |     }
  | }
  | 

4. The DAOs superclass

  | public class GenericHibernateDAO implements IGenericDAO
  | {
  |     private Session session;
  |     
  |     public GenericHibernateDAO(Session session)
  |     {
  |         setCurrentSession(session);
  |     }
  | 
  |     /**
  |      * Rerturns the current session in use by this DAO.
  |      * 
  |      * @return the current hibernate session
  |      */
  |     protected Session getCurrentSession()
  |     {
  |         return this.session;
  |     }
  | 

I think it is probably either a problem with the config of my XA datasources or 
more my transaction demarcation on the EJBs. Or the use of the injected session 
into the EJB.

Any help would be very much appreciated.

NOTE:
Tested issue with both JBoss 4.0.4GA and JBoss 5 Beta 1.
The application worked fine on JBoss 4.0.4GA with local-tx-datasources.



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