[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-3046) Merge fails on complicated data structure because of cycle references

Wallace Wadge (JIRA) noreply at atlassian.com
Fri Jan 30 02:54:40 EST 2009 

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=32225#action_32225 ] 

Wallace Wadge commented on HHH-3046:
------------------------------------

Come on guys, this bug has been open for over a year now and a patch is also available. What else do you need? We're drifting further and further away from each new Hibernate release!

>From my part I can confirm that this patch has fixed the issue for us too and has been working reliably in 4 different projects in heavy production use for the last few months.

Pavol: perhaps need to raise some noise on forums?

 


> Merge fails on complicated data structure because of cycle references
> ---------------------------------------------------------------------
>
>                 Key: HHH-3046
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3046
>             Project: Hibernate Core
>          Issue Type: Bug
>    Affects Versions: 3.2.4
>         Environment: Hibernate-3.2.4.ga, db-platform any (h2 &  oracle tested)
>            Reporter: Pavol Zibrita
>         Attachments: HHH3046Fix_Branch_3_2.patch, HHH3046Fix_entityManager_Branch_3_2.patch, HHH3046Test_entityManager_Branch_3_2.patch, HHH3046TestCase_Branch_3_2.patch, HibernateBug_HHH3046.zip
>
>
> On complicated object structure, hibernate was unable to merge it correctly because of attaching ID's to the new objects in the tree of the persistent entity. Hibernate cannot cope with cyclic references in this case and it fails with:
> javax.persistence.PersistenceException: org.hibernate.PropertyValueException: not-null property references a null or transient value: org.hibernate.bugtests.data.Transport.pickupNode
> 	at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:630)
> 	at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:237)
> 	at org.hibernate.bugtests.merge.MergeBug.mergeData(MergeBug.java:131)
> 	at org.hibernate.bugtests.merge.MergeBug.testBug(MergeBug.java:149)
> 	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:597)
> 	at junit.framework.TestCase.runTest(TestCase.java:154)
> 	at junit.framework.TestCase.runBare(TestCase.java:127)
> 	at junit.framework.TestResult$1.protect(TestResult.java:106)
> 	at junit.framework.TestResult.runProtected(TestResult.java:124)
> 	at junit.framework.TestResult.run(TestResult.java:109)
> 	at junit.framework.TestCase.run(TestCase.java:118)
> 	at junit.framework.TestSuite.runTest(TestSuite.java:208)
> 	at junit.framework.TestSuite.run(TestSuite.java:203)
> 	at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
> 	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
> 	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
> Caused by: org.hibernate.PropertyValueException: not-null property references a null or transient value: org.hibernate.bugtests.data.Transport.pickupNode
> 	at org.hibernate.engine.Nullability.checkNullability(Nullability.java:72)
> 	at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:290)
> 	at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:181)
> 	at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:121)
> 	at org.hibernate.ejb.event.EJB3MergeEventListener.saveWithGeneratedId(EJB3MergeEventListener.java:43)
> 	at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:186)
> 	at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:123)
> 	at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:687)
> 	at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:669)
> 	at org.hibernate.engine.CascadingAction$6.cascade(CascadingAction.java:245)
> 	at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
> 	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
> 	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> 	at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
> 	at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
> 	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
> 	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> 	at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
> 	at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:456)
> 	at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:194)
> 	at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:123)
> 	at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:687)
> 	at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:669)
> 	at org.hibernate.engine.CascadingAction$6.cascade(CascadingAction.java:245)
> 	at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
> 	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
> 	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> 	at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
> 	at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
> 	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
> 	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> 	at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
> 	at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:456)
> 	at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:194)
> 	at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:123)
> 	at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:687)
> 	at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:669)
> 	at org.hibernate.engine.CascadingAction$6.cascade(CascadingAction.java:245)
> 	at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
> 	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
> 	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> 	at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
> 	at org.hibernate.event.def.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:431)
> 	at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:178)
> 	at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:123)
> 	at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:687)
> 	at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:669)
> 	at org.hibernate.engine.CascadingAction$6.cascade(CascadingAction.java:245)
> 	at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:268)
> 	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:216)
> 	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> 	at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:296)
> 	at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:242)
> 	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:219)
> 	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:169)
> 	at org.hibernate.engine.Cascade.cascade(Cascade.java:130)
> 	at org.hibernate.event.def.DefaultMergeEventListener.cascadeOnMerge(DefaultMergeEventListener.java:407)
> 	at org.hibernate.event.def.DefaultMergeEventListener.entityIsPersistent(DefaultMergeEventListener.java:152)
> 	at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:126)
> 	at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:53)
> 	at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:677)
> 	at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:661)
> 	at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:665)
> 	at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:228)
> 	... 20 more
> However the value is set correctly.

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