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

Pavol Zibrita (JIRA) noreply at atlassian.com
Thu Jan 3 14:01:55 EST 2008 

     [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-3046?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Pavol Zibrita updated HHH-3046:
-------------------------------

    Attachment: HibernateBug_HHH3046.zip

Attached zip: HibernateBug_HHH3046.zip contains an eclipse project with junit test, with launcher for fail and pass. (The pass launcher has just defined the classpath with hibernate fix first).

src/fix/java - contains the fix for the bug used by us
src/main/java - contains the junit
h2.jar - is the h2 db to be able to run the example without some extra db setup.
pom.xml - maven used for dependencies ( you will probably need jta.jar to get from somewhere)

> Merge fails on complicated data structure because of cycle references
> ---------------------------------------------------------------------
>
>                 Key: HHH-3046
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-3046
>             Project: Hibernate3
>          Issue Type: Bug
>    Affects Versions: 3.2.4
>         Environment: Hibernate-3.2.4.ga, db-platform any (h2 &  oracle tested)
>            Reporter: Pavol Zibrita
>         Attachments: 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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