We are facing the problem is that our application is using WebSphere 6.1.0.17. The application is adopted jBPM tools that also employ Hibernate tool as ORM. However, when jBPM via Hibernate to lookup JTA transaction from WebSphere, it throws the javax.naming.ConfigurationException as below. I also tried different setting like lookup manager and JNDI name, but still fail. Please help to solve. Configuration ========== OS: AIX reportserver 3 5 000E2BF1D900 JDK: J2RE 1.5.0 IBM J9 2.3 AIX ppc64-64 j9vmap6423-20080315 (JIT enabled) Hibernate: 3.2.2 JBPM: 3.2.1 Transaction Lookup Manager ===================== org.hibernate.transaction.WebSphereTransactionManagerLookup org.hibernate.transaction.WebSphereExtendedJTATransactionLookup JNDI Name ======== jta/usertransaction - Throws javax.naming.ConfigurationException java:comp/UserTransaction - Throws Name not found exception If using jta/usertransaction, it throws following exception Exception ========== NamingException is being thrown from a javax.naming.Context implementation. Details follow: Context implementation: com.ibm.ws.naming.jndicos.CNContextImpl Context method: lookupExt Context name: reportserverCell01/nodes/reportserverNode01/servers/Server-DE3-DEV Target name: jta/usertransaction Other data: "" Exception stack trace: com.ibm.websphere.naming.CannotInstantiateObjectException: Exception occurred while the JNDI NamingManager was processing a javax.naming.Reference object. [Root exception is javax.naming.Conf igurationException] at com.ibm.ws.naming.util.Helpers.processSerializedObjectForLookupExt(Helpers.java:1000) at com.ibm.ws.naming.util.Helpers.processSerializedObjectForLookup(Helpers.java:705) at com.ibm.ws.naming.jndicos.CNContextImpl.processResolveResults(CNContextImpl.java:2093) at com.ibm.ws.naming.jndicos.CNContextImpl.doLookup(CNContextImpl.java:1947) at com.ibm.ws.naming.jndicos.CNContextImpl.doLookup(CNContextImpl.java:1862) at com.ibm.ws.naming.jndicos.CNContextImpl.lookupExt(CNContextImpl.java:1552) at com.ibm.ws.naming.jndicos.CNContextImpl.lookup(CNContextImpl.java:1354) at com.ibm.ws.naming.util.WsnInitCtx.lookup(WsnInitCtx.java:172) at javax.naming.InitialContext.lookup(InitialContext.java:363) at org.hibernate.transaction.JTATransaction.(JTATransaction.java:60) at org.hibernate.transaction.JTATransactionFactory.createTransaction(JTATransactionFactory.java:57) at org.hibernate.jdbc.JDBCContext.getTransaction(JDBCContext.java:193) at org.hibernate.impl.SessionImpl.getTransaction(SessionImpl.java:1315) at org.hibernate.impl.SessionImpl.beginTransaction(SessionImpl.java:1325) at org.jbpm.persistence.db.DbPersistenceService.beginTransaction(DbPersistenceService.java:132) at org.jbpm.persistence.db.DbPersistenceService.getSession(DbPersistenceService.java:124) at org.jbpm.persistence.db.DbPersistenceService.getGraphSession(DbPersistenceService.java:345) at org.jbpm.JbpmContext.getGraphSession(JbpmContext.java:571) at org.jbpm.JbpmContext.deployProcessDefinition(JbpmContext.java:173) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4181152#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...