1 Reply Latest reply on Jan 27, 2015 8:43 AM by marx3

    LazyInitializationException in AbstractCollectionMapper

    marx3
    marx3 Oct 21, 2013 4:22 AM

      Hello

      I've set in persistence.xml:

      <property name="org.hibernate.envers.global_with_modified_flag" value="true" />

      I've started database from scratch.

      Now my application in some places (when trying to persist Set) throws LazyInitializationException. It's in method org.hibernate.envers.entities.mapper.relation.AbstractCollectionMapper.mapCollectionChanges

      in line: added.addAll(newCollection);

       

      While I use JBoss 7.2.0, i've tried with latest stable Hibernate 4.2.6 (I've exchanged module) but it isn't fixed.

      So I downloaded sources and tried to debug and fix it myself.

      While in debug I see sometimes collection comes uninitialized. It's PersistentSet.

      Hibernate.isInitialized(newColl) returns false.

       

      1) I've tried to use

      if (newColl instanceof AbstractPersistentCollection) {

           AbstractPersistentCollection ps = (AbstractPersistentCollection) newColl;

           session.initializeCollection(ps, true);

      }

      and got and error:

      10:03:10,654 ERROR [org.hibernate.AssertionFailure] (http-localhost/127.0.0.1:8080-1) HHH000099: an assertion failure occured (this may indicate a bug in Hibernate, but is more likely due to unsafe use of the session): java.lang.NullPointerException

      10:03:10,654 WARN  [com.arjuna.ats.arjuna] (http-localhost/127.0.0.1:8080-1) ARJUNA012125: TwoPhaseCoordinator.beforeCompletion - failed for SynchronizationImple< 0:ffff0a01030e:-2ad659dd:5264df69:7b, org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization@4018f866 >: org.hibernate.AssertionFailure: Unable to perform beforeTransactionCompletion callback

              at org.hibernate.engine.spi.ActionQueue$BeforeTransactionCompletionProcessQueue.beforeTransactionCompletion(ActionQueue.java:705) [hibernate-core-4.2.6.Final.jar:4.2.6.Final]

              at org.hibernate.engine.spi.ActionQueue.beforeTransactionCompletion(ActionQueue.java:321) [hibernate-core-4.2.6.Final.jar:4.2.6.Final]

              at org.hibernate.internal.SessionImpl.beforeTransactionCompletion(SessionImpl.java:613) [hibernate-core-4.2.6.Final.jar:4.2.6.Final]

              at org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorImpl.beforeCompletion(SynchronizationCallbackCoordinatorImpl.java:122) [hibernate-core-4.2.6.Final.jar:4.2.6.Final]

              at org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.beforeCompletion(RegisteredSynchronization.java:53) [hibernate-core-4.2.6.Final.jar:4.2.6.Final]

      2) I've tried

      if (newColl instanceof AbstractPersistentCollection) {

                          AbstractPersistentCollection ps = (AbstractPersistentCollection) newColl;

                          Hibernate.initialize(ps);

      }

      Error says collection is not yet connected with any session

      3) This PersistentSet isn't proxy so I can't use proxy to initialize itself.

       

      Any idea how can I initialize lazy collection in this place?