Hibernate异常java.lang.ClassCastException:java.lang.Boolean不能转换为java.util.Date

在我们的项目中，我们面临以下堆栈跟踪异常。它有时在对象合并期间发生（我无法复制它）。我不知道是哪个对象导致了这个错误，因为有很多级联。环境并不重要，它发生在生产和开发环境中

我们使用Hibernate4.2.5.Final、Spring3.2.2.RELEASE、Java7和Tomcat7

java.lang.ClassCastException: java.lang.Boolean cannot be cast to java.util.Date
at org.hibernate.type.descriptor.java.JdbcTimestampTypeDescriptor.areEqual(JdbcTimestampTypeDescriptor.java:41)
at org.hibernate.type.AbstractStandardBasicType.isEqual(AbstractStandardBasicType.java:205)
at org.hibernate.type.AbstractStandardBasicType.isSame(AbstractStandardBasicType.java:195)
at org.hibernate.type.AbstractStandardBasicType.isDirty(AbstractStandardBasicType.java:231)
at org.hibernate.type.AbstractStandardBasicType.isDirty(AbstractStandardBasicType.java:227)
at org.hibernate.type.TypeHelper.findDirty(TypeHelper.java:294)
at org.hibernate.persister.entity.AbstractEntityPersister.findDirty(AbstractEntityPersister.java:4037)
at org.hibernate.event.internal.DefaultFlushEntityEventListener.dirtyCheck(DefaultFlushEntityEventListener.java:527)
at org.hibernate.event.internal.DefaultFlushEntityEventListener.isUpdateNecessary(DefaultFlushEntityEventListener.java:234)
at org.hibernate.event.internal.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:163)
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:228)
at org.hibernate.event.internal.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:100)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:51)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1234)
at org.springframework.orm.hibernate4.SpringSessionSynchronization.beforeCommit(SpringSessionSynchronization.java:91)
at org.springframework.transaction.support.TransactionSynchronizationUtils.triggerBeforeCommit(TransactionSynchronizationUtils.java:95)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.triggerBeforeCommit(AbstractPlatformTransactionManager.java:925)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.processCommit(AbstractPlatformTransactionManager.java:738)
at org.springframework.transaction.support.AbstractPlatformTransactionManager.commit(AbstractPlatformTransactionManager.java:724)
at org.springframework.transaction.interceptor.TransactionAspectSupport.commitTransactionAfterReturning(TransactionAspectSupport.java:475)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:270)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:94)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at com.sun.proxy.$Proxy115.method(Unknown Source)
at com.some.package.OurClass.method(OurClass.java:114)

---

编辑：方法“com.some.package.OurClass.method”刚刚执行了Hibernate merge（）操作。

我再次查看了它，找到了原因。我们在域对象中有一个名为“created”（日期类型）的字段，并且创建了临时方法。方法如下所示：

@Column(...)
public Date getCreated() {
    return created;
}

@Transient
public boolean isCreated() {
    return isStatus(StatusType.CREATED);
}

---

我通过将方法isCreated重命名为isCreatedStatus（），解决了这个问题。

在给出最终答案之前，您需要提供代码来演示这是在哪里发生的。您需要至少提供

com.some.package.OurClass.method（OurClass.java:114）的代码。

，并且可能，取决于涉及的实体，Hibernate实体的源代码。