i am using for study the Sun Adventure Builder Blueprint app - version adventure1.0.5. This is a j2ee 1.4 app making use of web services, session beans - both Stateful, Stateless, and Entity beans. i think this is EJB2.1 code.
The error i am trying to fully understand occurs both with the "stock" AB code and the code i've been making experimental/learning mods to. It occurs less often , but still occurs if i change 1 particular Session bean from Stateless to Stateful.
stack trace of the error msg at end of this discussion.
as best as i can tell -- and i dont know if this is ok according to the EJB spec or not? -- there seem to end up being 2 separate instances of an entity bean with context such that both are referencing the same "findByPrimaryKey" at the same time. again -- as best as i can tell -- it is when both of these instances are doing some kind of update (ejbStore) in the domain1/generated/ejb/j2ee-apps code.
the AB code uses CMP, i am testing with GFv2ur2, and my ide is nb61;
any help in understand how/why this error occurs and if its a real error? also would be appreciated.
why does glassfish create 2 entity beans referencing same data? is this allowed ?
all the code make a "findByPrimaryKey" method call before the -- ie setStatus(pk) call;
thanks
gary
stack trace excerpt:
EJB5071: Some remote or transactional roll back exception occurred
com.sun.jdo.api.persistence.support.JDODataStoreException: JDO76406: Concurrent access exception: object to update has been updated or deleted by another transaction.
FailedObjectArray: [com.sun.j2ee.blueprints.processmanager.manager.ejb.ManagerBean_838477572_JDOSta]
at com.sun.jdo.spi.persistence.support.sqlstore.SQLStoreManager.throwJDOConcurrentAccessException(SQLStoreManager.java:657)
at com.sun.jdo.spi.persistence.support.sqlstore.SQLStoreManager.executeUpdate(SQLStoreManager.java:216)
at com.sun.jdo.spi.persistence.support.sqlstore.SQLStoreManager.execute(SQLStoreManager.java:137)
at com.sun.jdo.spi.persistence.support.sqlstore.SQLStateManager.updatePersistent(SQLStateManager.java:924)
at com.sun.jdo.spi.persistence.support.sqlstore.impl.PersistenceManagerImpl.flushToDataStore(PersistenceManagerImpl.java:1499)
at com.sun.jdo.spi.persistence.support.sqlstore.impl.PersistenceManagerImpl.flushTxCache(PersistenceManagerImpl.java:1426)
at com.sun.jdo.spi.persistence.support.sqlstore.impl.PersistenceManagerImpl.beforeCompletion(PersistenceManagerImpl.java:1360)
at com.sun.jdo.spi.persistence.support.sqlstore.impl.TransactionImpl.notifyBeforeCompletion(TransactionImpl.java:1151)
at com.sun.jdo.spi.persistence.support.sqlstore.impl.TransactionImpl.commitBefore(TransactionImpl.java:790)
at com.sun.jdo.spi.persistence.support.sqlstore.impl.TransactionImpl.beforeCompletion(TransactionImpl.java:681)
at com.sun.ejb.containers.ContainerSynchronization.beforeCompletion(ContainerSynchronization.java:167)
at com.sun.jts.jta.SynchronizationImpl.before_completion(SynchronizationImpl.java:99)
at com.sun.jts.CosTransactions.RegisteredSyncs.distributeBefore(RegisteredSyncs.java:158)
at com.sun.jts.CosTransactions.TopCoordinator.beforeCompletion(TopCoordinator.java:2548)
at com.sun.jts.CosTransactions.CoordinatorTerm.commit(CoordinatorTerm.java:278)
at com.sun.jts.CosTransactions.TerminatorImpl.commit(TerminatorImpl.java:249)
at com.sun.jts.CosTransactions.CurrentImpl.commit(CurrentImpl.java:623)
at com.sun.jts.jta.TransactionManagerImpl.commit(TransactionManagerImpl.java:309)
at com.sun.enterprise.distributedtx.J2EETransactionManagerImpl.commit(J2EETransactionManagerImpl.java:1004)
at com.sun.enterprise.distributedtx.J2EETransactionManagerOpt.commit(J2EETransactionManagerOpt.java:397)
at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:3792)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3571)
at com.sun.ejb.containers.MessageBeanContainer.afterMessageDeliveryInternal(MessageBeanContainer.java:1226)
at com.sun.ejb.containers.MessageBeanContainer.afterMessageDelivery(MessageBeanContainer.java:1197)
at com.sun.ejb.containers.MessageBeanListenerImpl.afterMessageDelivery(MessageBeanListenerImpl.java:79)
at com.sun.enterprise.connectors.inflow.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:139)
at $Proxy216.afterDelivery(Unknown Source)
at com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:324)
at com.sun.enterprise.connectors.work.OneWork.doWork(OneWork.java:76)
at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:555)
===================================
com.sun.ejb.containers.EntityContextImpl_at_1455cd6:ManagerBean:ejbPassivate:AB-j2ee-1210363509843
com.sun.ejb.containers.MessageBeanContextImpl_at_1323b78:WorkFlowManagerBean:onMessage:begin
MDB00037: [opc:WorkFlowManagerBean]: Message-driven bean invocation exception: [javax.ejb.EJBException: Transaction aborted; nested exception is: javax.transaction.RollbackException]
javax.ejb.EJBException
javax.ejb.EJBException: Transaction aborted; nested exception is: javax.transaction.RollbackException
javax.transaction.RollbackException
at com.sun.jts.jta.TransactionManagerImpl.commit(TransactionManagerImpl.java:311)
at com.sun.enterprise.distributedtx.J2EETransactionManagerImpl.commit(J2EETransactionManagerImpl.java:1004)
at com.sun.enterprise.distributedtx.J2EETransactionManagerOpt.commit(J2EETransactionManagerOpt.java:397)
at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:3792)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3571)
at com.sun.ejb.containers.MessageBeanContainer.afterMessageDeliveryInternal(MessageBeanContainer.java:1226)
at com.sun.ejb.containers.MessageBeanContainer.afterMessageDelivery(MessageBeanContainer.java:1197)
at com.sun.ejb.containers.MessageBeanListenerImpl.afterMessageDelivery(MessageBeanListenerImpl.java:79)
at com.sun.enterprise.connectors.inflow.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:139)
at $Proxy216.afterDelivery(Unknown Source)
at com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:324)
at com.sun.enterprise.connectors.work.OneWork.doWork(OneWork.java:76)
at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:555)
javax.ejb.EJBException: Transaction aborted; nested exception is: javax.transaction.RollbackException
at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:3798)
at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:3571)
at com.sun.ejb.containers.MessageBeanContainer.afterMessageDeliveryInternal(MessageBeanContainer.java:1226)
at com.sun.ejb.containers.MessageBeanContainer.afterMessageDelivery(MessageBeanContainer.java:1197)
at com.sun.ejb.containers.MessageBeanListenerImpl.afterMessageDelivery(MessageBeanListenerImpl.java:79)
at com.sun.enterprise.connectors.inflow.MessageEndpointInvocationHandler.invoke(MessageEndpointInvocationHandler.java:139)
at $Proxy216.afterDelivery(Unknown Source)
at com.sun.messaging.jms.ra.OnMessageRunner.run(OnMessageRunner.java:324)
at com.sun.enterprise.connectors.work.OneWork.doWork(OneWork.java:76)
at com.sun.corba.ee.impl.orbutil.threadpool.ThreadPoolImpl$WorkerThread.run(ThreadPoolImpl.java:555)
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