I have an issue with my EJB3 application since migrating to JBoss 5 Beta 1. The initial error I receive is.. | 10:19:53,324 WARN [JDBCExceptionReporter] SQL Error: 0, SQLState: null | 10:19:53,324 ERROR [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=TransactionImple < ac, BasicAction: -53efc9f2:c46d:45b48f67:6f status: 3 >); - 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=TransactionImple < ac, BasicAction: -53efc9f2:c46d:45b48f67:6f status: 3 >)) | My setup is.. EAR file contains i. Domain model jar for the main database access ii. Domain model for an external contact address database iii. EJB jar for accessing the main database iv. EJB jar for accessing the external address system The scenario is.. 1. Client application calls a SLSB (Stateless Session Bean) that accesses the main application database (item iii. in the EAR file content list above) 2. This EJB then calls a SLSB for the external address system to get some address details from the external address system (item iv. in the EAR file content list above) 3. This should return to the calling SLSB and then that call should return to the client application. The exception is thrown when the first SLSB calls the second SLSB. More complete logs including the server log with TRACE logging switched on for org.jboss.resource.connectionmanager.TxConnectionManager are available at: http://devissues.googlepages.com/jboss5txenlistproblem The jboss console output at the time of the error is: | 10:19:53,324 WARN [JDBCExceptionReporter] SQL Error: 0, SQLState: null | 10:19:53,324 ERROR [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=TransactionImple < ac, BasicAction: -53efc9f2:c46d:45b48f67:6f status: 3 >); - 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=TransactionImple < ac, BasicAction: -53efc9f2:c46d:45b48f67:6f status: 3 >)) | 10:19:53,450 WARN [loggerI18N] [com.arjuna.ats.internal.jta.transaction.arjunacore.enliststarterror] [com.arjuna.ats.internal.jta.transaction.arjunacore.enliststarterror] TransactionImple.enlistResource - XAResource.start returned: XAException.XAER_PROTO for < 131075, 28, 26, 1--53efc9f2:c46d:45b48f67:7f-53efc9f2:c46d:45b48f67:8b > | 10:19:53,450 ERROR [STDERR] org.jboss.resource.connectionmanager.JBossLocalXAException: Trying to start a new tx when old is not complete! old: < 131075, 28, 26, 1--53efc9f2:c46d:45b48f67:6f-53efc9f2:c46d:45b48f67:7e >, new < 131075, 28, 26, 1--53efc9f2:c46d:45b48f67:7f-53efc9f2:c46d:45b48f67:8b >, flags 0 | 10:19:53,451 ERROR [STDERR] at org.jboss.resource.connectionmanager.TxConnectionManager$LocalXAResource.start(TxConnectionManager.java:938) | 10:19:53,451 ERROR [STDERR] at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.enlistResource(TransactionImple.java:667) | 10:19:53,451 ERROR [STDERR] at com.arjuna.ats.internal.jta.transaction.arjunacore.TransactionImple.enlistResource(TransactionImple.java:415) | 10:19:53,451 ERROR [STDERR] at org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener$TransactionSynchronization.enlist(TxConnectionManager.java:825)10:19:53,451 ERROR [STDERR] at org.jboss.resource.connectionmanager.TxConnectionManager$TxConnectionEventListener.enlist(TxConnectionManager.java:616) | 10:19:53,451 ERROR [STDERR] at org.jboss.resource.connectionmanager.TxConnectionManager.managedConnectionReconnected(TxConnectionManager.java:373) | 10:19:53,451 ERROR [STDERR] at org.jboss.resource.connectionmanager.BaseConnectionManager2.reconnectManagedConnection(BaseConnectionManager2.java:516) | 10:19:53,451 ERROR [STDERR] at org.jboss.resource.connectionmanager.BaseConnectionManager2.allocateConnection(BaseConnectionManager2.java:397) | 10:19:53,451 ERROR [STDERR] at org.jboss.resource.connectionmanager.BaseConnectionManager2$ConnectionManagerProxy.allocateConnection(BaseConnectionManager2.java:838) | 10:19:53,451 ERROR [STDERR] at org.jboss.resource.adapter.jdbc.WrapperDataSource.getConnection(WrapperDataSource.java:88) | 10:19:53,451 ERROR [STDERR] at org.hibernate.ejb.connection.InjectedDataSourceConnectionProvider.getConnection(InjectedDataSourceConnectionProvider.java:47) | 10:19:53,451 ERROR [STDERR] at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:417) | 10:19:53,451 ERROR [STDERR] at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:144) | 10:19:53,451 ERROR [STDERR] at org.hibernate.jdbc.AbstractBatcher.prepareQueryStatement(AbstractBatcher.java:139) | 10:19:53,451 ERROR [STDERR] at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1538) | 10:19:53,451 ERROR [STDERR] at org.hibernate.loader.Loader.doQuery(Loader.java:661) | 10:19:53,451 ERROR [STDERR] at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:224) | 10:19:53,451 ERROR [STDERR] at org.hibernate.loader.Loader.doList(Loader.java:2211) | 10:19:53,451 ERROR [STDERR] at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2095) | 10:19:53,451 ERROR [STDERR] at org.hibernate.loader.Loader.list(Loader.java:2090) | 10:19:53,451 ERROR [STDERR] at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:388) | 10:19:53,451 ERROR [STDERR] at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338) | 10:19:53,452 ERROR [STDERR] at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172) | 10:19:53,452 ERROR [STDERR] at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121) | 10:19:53,452 ERROR [STDERR] at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) | 10:19:53,452 ERROR [STDERR] at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:804) | 10:19:53,452 ERROR [STDERR] at com.dolby.maximizer.dao.hibernate.MaximizerDAOHibernate.findByRecordId(MaximizerDAOHibernate.java:111) | 10:19:53,563 ERROR [STDERR] at com.dolby.maximizer.dao.hibernate.MaximizerDAOHibernate.getAddressInfo(MaximizerDAOHibernate.java:130) | 10:19:53,563 ERROR [STDERR] at com.dolby.maximizer.ejb.bean.impl.MaximizerAddressProviderBean.getAddressInfo(MaximizerAddressProviderBean.java:48) | 10:19:53,563 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | 10:19:53,563 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) | 10:19:53,563 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | 10:19:53,563 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:589) | 10:19:53,563 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:121) | 10:19:53,563 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:110) | 10:19:53,563 ERROR [STDERR] at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) | 10:19:53,563 ERROR [STDERR] at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) | 10:19:53,563 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,563 ERROR [STDERR] at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) | 10:19:53,563 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,563 ERROR [STDERR] at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) | 10:19:53,563 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,563 ERROR [STDERR] at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126) | 10:19:53,563 ERROR [STDERR] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197) | 10:19:53,563 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,563 ERROR [STDERR] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) | 10:19:53,563 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,563 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) | 10:19:53,563 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,564 ERROR [STDERR] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) | 10:19:53,564 ERROR [STDERR] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102) | 10:19:53,564 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,564 ERROR [STDERR] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) | 10:19:53,564 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,564 ERROR [STDERR] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) | 10:19:53,564 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,564 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:214) | 10:19:53,564 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:79) | 10:19:53,564 ERROR [STDERR] at $Proxy84.getAddressInfo(Unknown Source) | 10:19:53,564 ERROR [STDERR] at com.dolby.pics.core.ejb.bean.impl.ExternalAddressBean.getAddressInfo(ExternalAddressBean.java:75) | 10:19:53,564 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | 10:19:53,564 ERROR [STDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) | 10:19:53,564 ERROR [STDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | 10:19:53,564 ERROR [STDERR] at java.lang.reflect.Method.invoke(Method.java:589) | 10:19:53,566 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeTarget(MethodInvocation.java:121) | 10:19:53,566 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:110) | 10:19:53,566 ERROR [STDERR] at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) | 10:19:53,566 ERROR [STDERR] at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) | 10:19:53,566 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,566 ERROR [STDERR] at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) | 10:19:53,566 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,566 ERROR [STDERR] at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) | 10:19:53,566 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,566 ERROR [STDERR] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79) | 10:19:53,566 ERROR [STDERR] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:193) | 10:19:53,566 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,566 ERROR [STDERR] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) | 10:19:53,566 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,566 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) | 10:19:53,566 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,566 ERROR [STDERR] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) | 10:19:53,566 ERROR [STDERR] at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:102) | 10:19:53,566 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,566 ERROR [STDERR] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) | 10:19:53,566 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,566 ERROR [STDERR] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) | 10:19:53,567 ERROR [STDERR] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | 10:19:53,567 ERROR [STDERR] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:279) | 10:19:53,567 ERROR [STDERR] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106) | 10:19:53,567 ERROR [STDERR] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82) | 10:19:53,567 ERROR [STDERR] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:1008) | 10:19:53,567 ERROR [STDERR] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:857) | 10:19:53,567 ERROR [STDERR] at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:454) | 10:19:53,567 ERROR [STDERR] at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:527) | 10:19:53,567 ERROR [STDERR] at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:261) | 10:19:53,569 WARN [JDBCExceptionReporter] SQL Error: 0, SQLState: null | 10:19:53,569 ERROR [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=TransactionImple < ac, BasicAction: -53efc9f2:c46d:45b48f67:7f status: 3 >); - 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=TransactionImple < ac, BasicAction: -53efc9f2:c46d:45b48f67:7f status: 3 >)) | I've seen people with a similar error but no answer to my problem. It is most likely something I've done, but I am completely stuped as to a solution. BTW this all worked in JBoss 4.0.4 - though that used older versions of EJB3 and hibernate. Any help would be very much appreciated as I have spent 2 full days trying to debug the issue to no avail. Thanks for your help. Adrian [/url] View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4004781#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...