hibernate - org.hibernate.AssertionFailure : Unable to perform un-delete for instance

Question

当我尝试在一些删除操作后进行读取时，出现此 hibernate 断言错误。

我找不到关于此“无法执行取消删除”错误的任何信息，except the soure code ，所以我认为，也许我做的事情显然是错误的......

堆栈跟踪在下面，

AssertionFailure:43 -  - HHH000099: an assertion failure occured (this may indicate a bug in         Hibernate, but is more likely due to unsafe use of the session): org.hibernate.AssertionFailure: Unable     to perform un-delete for instance X
org.hibernate.AssertionFailure: Unable to perform un-delete for instance X
   at org.hibernate.engine.spi.ActionQueue.unScheduleDeletion(ActionQueue.java:508)
   at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:157)
   at org.hibernate.internal.SessionImpl.firePersistOnFlush(SessionImpl.java:870)
   at org.hibernate.internal.SessionImpl.persistOnFlush(SessionImpl.java:863)
   at org.hibernate.engine.spi.CascadingAction$8.cascade(CascadingAction.java:346)
   at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:380)
   at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:323)
   at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:208)
   at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:165)
   at org.hibernate.event.internal.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:423)
   at org.hibernate.event.internal.DefaultPersistEventListener.justCascade(DefaultPersistEventListener.java:190)
   at org.hibernate.event.internal.DefaultPersistEventListener.entityIsDeleted(DefaultPersistEventListener.java:229)
   at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:158)
   at org.hibernate.internal.SessionImpl.firePersistOnFlush(SessionImpl.java:870)
   at org.hibernate.internal.SessionImpl.persistOnFlush(SessionImpl.java:863)
   at org.hibernate.engine.spi.CascadingAction$8.cascade(CascadingAction.java:346)
   at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:380)
   at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:323)
   at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:208)
   at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:165)
   at org.hibernate.event.internal.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:423)
   at org.hibernate.event.internal.DefaultPersistEventListener.justCascade(DefaultPersistEventListener.java:190)
   at org.hibernate.event.internal.DefaultPersistEventListener.entityIsPersistent(DefaultPersistEventListener.java:183)
   at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:147)
   at org.hibernate.internal.SessionImpl.firePersistOnFlush(SessionImpl.java:870)
   at org.hibernate.internal.SessionImpl.persistOnFlush(SessionImpl.java:863)
   at org.hibernate.engine.spi.CascadingAction$8.cascade(CascadingAction.java:346)
   at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:380)
   at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:323)
   at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:208)
   at org.hibernate.engine.internal.Cascade.cascadeCollectionElements(Cascade.java:409)
   at org.hibernate.engine.internal.Cascade.cascadeCollection(Cascade.java:350)
   at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:326)
   at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:208)
   at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:165)
   at org.hibernate.event.internal.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:160)
   at org.hibernate.event.internal.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:151)
   at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:88)
   at org.hibernate.event.internal.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:58)
   at org.hibernate.internal.SessionImpl.autoFlushIfRequired(SessionImpl.java:1186)
   at org.hibernate.internal.SessionImpl.list(SessionImpl.java:1241)
   at org.hibernate.internal.QueryImpl.list(QueryImpl.java:101)
   at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:257)
   at org.hibernate.ejb.criteria.CriteriaQueryCompiler$3.getResultList(CriteriaQueryCompiler.java:254)

问候，

Answer 1

我遇到了同样的问题。发生的事情是我正在删除相关的 bean，我们称它们为 A 和 B。我删除了 Bs，然后继续查找链接到 As 的实体 C，并将 A 类型的 bean 作为参数进行查询，并使查询导致此异常.我最好的猜测是实体 D 上的级联注释，同时引用 A 和 B，在我删除 B 时删除了 A，然后将已在数据库级别删除的实体作为查询参数提供导致问题。

重新排列代码，以便我首先删除从 C 到 A 的引用，然后继续删除 B 和 A 似乎解决了这个问题。