[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-5267) NPE on Cascade after switch to hibernate 3.5

[Patras Vlad (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-5267?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=37611#action_37611 ] 

Patras Vlad commented on HHH-5267:
----------------------------------

Our current workaround is to merge the entity before saving. This guarantees all changes made to the entity while it was detached are applied and the save won't crash. However you might need to include CascadeType.MERGE.

> NPE on Cascade after switch to hibernate 3.5
> --------------------------------------------
>
>                 Key: HHH-5267
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-5267
>             Project: Hibernate Core
>          Issue Type: Bug
>          Components: annotations, core
>         Environment: Hibernate 3.5.x
>            Reporter: Krzysztof Kowalczyk
>            Priority: Blocker
>         Attachments: hibernate_HHH-5267_testcase.patch
>
>
> We use hibernate annotations and hibernate search in our project. After we moved to hibernate 3.5.2 (and 3.5.1 before that) we are having the following errors:
> java.lang.NullPointerException
> 	at org.hibernate.engine.EntityEntry.getLoadedValue(EntityEntry.java:255)
> 	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:232)
> 	at org.hibernate.engine.Cascade.cascade(Cascade.java:161)
> 	at org.hibernate.engine.Cascade.cascade(Cascade.java:127)
> 	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.cascadeOnUpdate(DefaultSaveOrUpdateEventListener.java:376)
> 	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performUpdate(DefaultSaveOrUpdateEventListener.java:350)
> 	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsDetached(DefaultSaveOrUpdateEventListener.java:246)
> 	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:112)
> 	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
> 	at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:677)
> 	at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:669)
> 	at org.hibernate.engine.CascadingAction$5.cascade(CascadingAction.java:252)
> 	at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:392)
> 	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:335)
> 	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:204)
> 	at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:425)
> 	at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:362)
> 	at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:338)
> 	at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:204)
> 	at org.hibernate.engine.Cascade.cascade(Cascade.java:161)
> 	at org.hibernate.event.def.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:154)
> 	at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:145)
> 	at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:88)
> 	at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
> 	at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1206)
> 	at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:375)
> 	at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:137)
> 	at org.springframework.orm.hibernate3.HibernateTransactionManager.doCommit(HibernateTransactionManager.java:655)
> 	at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:709)
> 	at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:678)
> 	at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:321)
> 	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:116)
> 	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
> 	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
> 	at $Proxy67.initializePlacowka(Unknown Source)
> In different place we have the same problem:
> [java] java.lang.NullPointerException
> [java] at org.hibernate.engine.EntityEntry.getLoadedValue(EntityEntry.java:255)
> [java] at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:232)
> [java] at org.hibernate.engine.Cascade.cascade(Cascade.java:161)
> [java] at org.hibernate.engine.Cascade.cascade(Cascade.java:127)
> [java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.cascadeOnUpdate(DefaultSaveOrUpdateEventListener.java:376)
> [java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performUpdate(DefaultSaveOrUpdateEventListener.java:350)
> [java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsDetached(DefaultSaveOrUpdateEventListener.java:246)
> [java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:112)
> [java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
> [java] at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:677)
> [java] at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:669)
> [java] at org.hibernate.engine.CascadingAction$5.cascade(CascadingAction.java:252)
> [java] at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:392)
> [java] at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:335)
> [java] at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:204)
> [java] at org.hibernate.engine.Cascade.cascade(Cascade.java:161)
> [java] at org.hibernate.event.def.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:451)
> [java] at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:288)
> [java] at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:204)
> [java] at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:144)
> [java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:210)
> [java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:195)
> [java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:117)
> [java] at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:93)
> [java] at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:677)
> [java] at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:669)
> [java] at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:665)
> The NPE is thrown because "loadedState" field is null. The exception seems to occur for instance when we have OneToOne with Cascade.DELETE_ORPHAN (or orphanRemoval="true"), CascadeType.SAVE_UPDATE and CascadeType.DELETE.
> I will try to create a simple example to reproduce the problem.

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