JTA et Hibernate

Bonjour 8)

j'ai le problème suivant :

j'ai implémenter un ejb qui fait appel à hibernate dans l'une de ses méthodes d'authentification :
Code:

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 public boolean authentify(String login, String password) { System.out.println("Method authentify called"); boolean estValide = false; if(login.equals("") || password.equals("")) return estValide; else { Session session = HibernateUtil.currentSession(); Transaction tx = session.beginTransaction(); User u = (User) session.createCriteria(User.class) .add(Expression.eq("login", login)) .add(Expression.eq("password", password)) .uniqueResult(); if(u != null) estValide = true; tx.commit(); HibernateUtil.closeSession(); return estValide; } }
Quand je déploie l'ejb sous JBOSS, et que je lance ma page jsp, celle ci fait appel a une Action Struts qui fait appel a l'ejb ..

J'ai lerreur suivante :

Citation:

10:21:38,845 ERROR [JDBCTransaction] JDBC commit failed
java.sql.SQLException: You cannot commit during a managed transaction!
at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.jdbcCommit(BaseWrapperManagedConnection.j ava:519)
at org.jboss.resource.adapter.jdbc.WrappedConnection.commit(WrappedConnection.java:451)
at org.hibernate.transaction.JDBCTransaction.commitAndResetAutoCommit(JDBCTransaction.java:139)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:115)
at com.ebusiness.ebanque.BanqueBean.authentify(BanqueBean.java:42)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.invocation.Invocation.performCall(Invocation.java:345)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:214 )
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.ja va:185)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.j ava:130)
at org.jboss.webservice.server.ServiceEndpointInterceptor.invoke(ServiceEndpointInterceptor.java:51)
at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:48)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:105)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:335)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:166)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:139)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:192)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:624)
at org.jboss.ejb.Container.invoke(Container.java:873)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.invocation.jrmp.server.JRMPInvoker$MBeanServerAction.invoke(JRMPInvoker.java:805)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:406)
at sun.reflect.GeneratedMethodAccessor141.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:595)
10:21:38,894 ERROR [LogInterceptor] RuntimeException in method: public abstract boolean com.ebusiness.ebanque.Ban que.authentify(java.lang.String,java.lang.String) throws java.rmi.RemoteException:
org.hibernate.TransactionException: JDBC commit failed
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:130)
at com.ebusiness.ebanque.BanqueBean.authentify(BanqueBean.java:42)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.invocation.Invocation.performCall(Invocation.java:345)
at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessSessionContainer.java:214 )
at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(CachedConnectionInterceptor.ja va:185)
at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceInterceptor.j ava:130)
at org.jboss.webservice.server.ServiceEndpointInterceptor.invoke(ServiceEndpointInterceptor.java:51)
at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationInterceptor.java:48)
at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:105)
at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:335)
at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:166)
at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:139)
at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:192)
at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:624)
at org.jboss.ejb.Container.invoke(Container.java:873)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:141)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
at org.jboss.invocation.jrmp.server.JRMPInvoker$MBeanServerAction.invoke(JRMPInvoker.java:805)
at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:406)
at sun.reflect.GeneratedMethodAccessor141.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
at sun.rmi.transport.Transport$1.run(Transport.java:153)
at java.security.AccessController.doPrivileged(Native Method)
at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
at java.lang.Thread.run(Thread.java:595)
Caused by: java.sql.SQLException: You cannot commit during a managed transaction!
at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.jdbcCommit(BaseWrapperManagedConnection.j ava:519)
at org.jboss.resource.adapter.jdbc.WrappedConnection.commit(WrappedConnection.java:451)
at org.hibernate.transaction.JDBCTransaction.commitAndResetAutoCommit(JDBCTransaction.java:139)
at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:115)
... 40 more
10:21:38,974 INFO [STDOUT] java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.ServerException: RuntimeException; nested exception is:
org.hibernate.TransactionException: JDBC commit failed
10:21:38,974 INFO [STDOUT] at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:325)
10:21:38,974 INFO [STDOUT] at sun.rmi.transport.Transport$1.run(Transport.java:153)
10:21:38,974 INFO [STDOUT] at java.security.AccessController.doPrivileged(Native Method)
10:21:38,974 INFO [STDOUT] at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
10:21:38,975 INFO [STDOUT] at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
10:21:38,975 INFO [STDOUT] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701 )
10:21:38,975 INFO [STDOUT] at java.lang.Thread.run(Thread.java:595)
10:21:38,975 INFO [STDOUT] at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCal l.java:247)
10:21:38,975 INFO [STDOUT] at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:223)
10:21:38,975 INFO [STDOUT] at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:126)
10:21:38,976 INFO [STDOUT] at org.jboss.invocation.jrmp.server.JRMPInvoker_Stub.invoke(Unknown Source)
10:21:38,976 INFO [STDOUT] at org.jboss.invocation.jrmp.interfaces.JRMPInvokerProxy.invoke(JRMPInvokerProxy. java:118)
10:21:38,976 INFO [STDOUT] at org.jboss.invocation.InvokerInterceptor.invokeInvoker(InvokerInterceptor.java: 227)
10:21:38,976 INFO [STDOUT] at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:167)
10:21:38,976 INFO [STDOUT] at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:46)
10:21:38,976 INFO [STDOUT] at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:55)
10:21:38,977 INFO [STDOUT] at org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterce ptor.java:97)
10:21:38,977 INFO [STDOUT] at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:86)
10:21:38,977 INFO [STDOUT] at $Proxy67.authentify(Unknown Source)
10:21:38,977 INFO [STDOUT] at com.ebusiness.ebanque.LoginAction.execute(LoginAction.java:52)
10:21:38,977 INFO [STDOUT] at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcesso r.java:419)
10:21:38,977 INFO [STDOUT] at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
10:21:38,978 INFO [STDOUT] at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
10:21:38,978 INFO [STDOUT] at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
10:21:38,978 INFO [STDOUT] at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
10:21:38,978 INFO [STDOUT] at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
10:21:38,978 INFO [STDOUT] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFi lterChain.java:252)
10:21:38,978 INFO [STDOUT] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChai n.java:173)
10:21:38,979 INFO [STDOUT] at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java :81)
10:21:38,979 INFO [STDOUT] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFi lterChain.java:202)
10:21:38,979 INFO [STDOUT] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChai n.java:173)
10:21:38,979 INFO [STDOUT] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java :213)
10:21:38,979 INFO [STDOUT] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java :178)
10:21:38,979 INFO [STDOUT] at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrincipalValve .java:39)
10:21:38,980 INFO [STDOUT] at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociat ionValve.java:153)
10:21:38,980 INFO [STDOUT] at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:59 )
10:21:38,980 INFO [STDOUT] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
10:21:38,981 INFO [STDOUT] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
10:21:38,981 INFO [STDOUT] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:1 07)
10:21:38,981 INFO [STDOUT] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
10:21:38,981 INFO [STDOUT] at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
10:21:38,981 INFO [STDOUT] at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnect ion(Http11Protocol.java:744)
10:21:38,981 INFO [STDOUT] at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java: 527)
10:21:38,982 INFO [STDOUT] at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread .java:112)
10:21:38,982 INFO [STDOUT] at java.lang.Thread.run(Thread.java:595)
10:21:38,982 INFO [STDOUT] Caused by: java.rmi.ServerException: RuntimeException; nested exception is:
org.hibernate.TransactionException: JDBC commit failed
10:21:38,982 INFO [STDOUT] at org.jboss.ejb.plugins.LogInterceptor.handleException(LogInterceptor.java:386)
10:21:38,982 INFO [STDOUT] at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:196)
10:21:38,982 INFO [STDOUT] at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderI nterceptor.java:122)
10:21:38,983 INFO [STDOUT] at org.jboss.ejb.SessionContainer.internalInvoke(SessionContainer.java:624)
10:21:38,983 INFO [STDOUT] at org.jboss.ejb.Container.invoke(Container.java:873)
10:21:38,983 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
10:21:38,983 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
10:21:38,983 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.j ava:25)
10:21:38,984 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:585)
10:21:38,984 INFO [STDOUT] at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:1 41)
10:21:38,984 INFO [STDOUT] at org.jboss.mx.server.Invocation.dispatch(Invocation.java:80)
10:21:38,984 INFO [STDOUT] at org.jboss.mx.server.Invocation.invoke(Invocation.java:72)
10:21:38,984 INFO [STDOUT] at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:249)
10:21:38,984 INFO [STDOUT] at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:644)
10:21:38,985 INFO [STDOUT] at org.jboss.invocation.jrmp.server.JRMPInvoker$MBeanServerAction.invoke(JRMPInvo ker.java:805)
10:21:38,985 INFO [STDOUT] at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:406)
10:21:38,985 INFO [STDOUT] at sun.reflect.GeneratedMethodAccessor141.invoke(Unknown Source)
10:21:38,985 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.j ava:25)
10:21:38,985 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:585)
10:21:38,985 INFO [STDOUT] at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:294)
10:21:38,986 INFO [STDOUT] at sun.rmi.transport.Transport$1.run(Transport.java:153)
10:21:38,986 INFO [STDOUT] at java.security.AccessController.doPrivileged(Native Method)
10:21:38,986 INFO [STDOUT] at sun.rmi.transport.Transport.serviceCall(Transport.java:149)
10:21:38,986 INFO [STDOUT] at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
10:21:38,986 INFO [STDOUT] at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701 )
10:21:38,986 INFO [STDOUT] ... 1 more
10:21:38,987 INFO [STDOUT] Caused by: org.hibernate.TransactionException: JDBC commit failed
10:21:38,987 INFO [STDOUT] at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:130)
10:21:38,995 INFO [STDOUT] at com.ebusiness.ebanque.BanqueBean.authentify(BanqueBean.java:42)
10:21:38,995 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
10:21:38,996 INFO [STDOUT] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
10:21:38,996 INFO [STDOUT] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.j ava:25)
10:21:38,996 INFO [STDOUT] at java.lang.reflect.Method.invoke(Method.java:585)
10:21:38,996 INFO [STDOUT] at org.jboss.invocation.Invocation.performCall(Invocation.java:345)
10:21:38,996 INFO [STDOUT] at org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.invoke(StatelessS essionContainer.java:214)
10:21:38,996 INFO [STDOUT] at org.jboss.resource.connectionmanager.CachedConnectionInterceptor.invoke(Cached ConnectionInterceptor.java:185)
10:21:38,997 INFO [STDOUT] at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSess ionInstanceInterceptor.java:130)
10:21:38,997 INFO [STDOUT] at org.jboss.webservice.server.ServiceEndpointInterceptor.invoke(ServiceEndpointI nterceptor.java:51)
10:21:38,997 INFO [STDOUT] at org.jboss.ejb.plugins.CallValidationInterceptor.invoke(CallValidationIntercept or.java:48)
10:21:38,997 INFO [STDOUT] at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.j ava:105)
10:21:38,997 INFO [STDOUT] at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.ja va:335)
10:21:38,997 INFO [STDOUT] at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:166)
10:21:38,998 INFO [STDOUT] at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:139)
10:21:39,004 INFO [STDOUT] at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:192)
10:21:39,004 INFO [STDOUT] ... 24 more
10:21:39,005 INFO [STDOUT] Caused by: java.sql.SQLException: You cannot commit during a managed transaction!
10:21:39,005 INFO [STDOUT] at org.jboss.resource.adapter.jdbc.BaseWrapperManagedConnection.jdbcCommit(BaseWr apperManagedConnection.java:519)
10:21:39,005 INFO [STDOUT] at org.jboss.resource.adapter.jdbc.WrappedConnection.commit(WrappedConnection.jav a:451)
10:21:39,005 INFO [STDOUT] at org.hibernate.transaction.JDBCTransaction.commitAndResetAutoCommit(JDBCTransac tion.java:139)
10:21:39,005 INFO [STDOUT] at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:115)
10:21:39,005 INFO [STDOUT] ... 40 more

J'enleve le

Code:

tx.commit

de la méthode authentify et ça marche !

A priori le problème vient de JTA qui s'occupe des transactions (je ne sais pas vraiment à quoi sa sert ..si quelqu'un pouvait m'expliquer au passage et brièvement l'utilité de jta ..ça ne serait pas de refus! :wink: )

J'aimerais laisser le

Code:

tx.commit

et désactiver le "jta" (sous jboss? avec hibernate.cfg.xml?)... comment faire?? Merci !

:idea:

Bonjour,

JTA est simplement une API normalisée de gestion des transactions (elle est intégrée à JEE).

Au contraire je crois qu'il faut utiliser JTA dans Hibernate si tu veux pouvoir l'utiliser avec des EJB.

Vérifie que tu ait bien la ligne suivante dans ton fichier de configuration Hibernate.
Code:

1 2 hibernate.transaction.factory_class=net.sf.hibernate.transaction.JTATransactionFactory

merci pour ta reponse !

j'ai resolu mon problème en désactivant la gestion de jta dans mon fichier de déploiement ejb ejb-jar.xml (attribut trans-attribute que j"avai mis à "required", je l'ai mis à "never")

JTA était effectivement géré par le conteneur ejb (element <transaction-type>Container</transaction-type> du fichier ejb-jar.xml)