java – HibernateException：数据库违规错误后代理句柄不再有效

我有循环来保存几个对象.在循环中调用服务方法并捕获异常.服务保存方法注释@Transactional,内部执行hibernate saveOrUpdate调用.
服务由ApplicationContext对象的getBean方法提供.我在循环前只调用一次.

在循环中,在我捕获oracle约束违规的异常之后：

org.hibernate.exception.constraintviolationexception: ora-00001: unique constraint (ccb.sys_c0017085) violated

我记录问题并尝试保存另一个对象.我得到的下一个例外是：

org.hibernate.HibernateException: proxy handle is no longer valid

有时它在每次ora错误后只发生一次,但有时它会重复更多的对象(迭代).

如何处理此异常&如何使保存操作成为可能？

我正在使用
Spring 3.1.3和Hibernate 4.1.7.

[编辑]
一些代码示例：

@Service
public class ServiceForRecord {
    @Transactional
public Record saveRecord(Record record,String user) {
      Record obj = record;
      // some validation & seting internal values
      getHibernateTemplate().saveOrUpdate(obj)
      return obj;
    }
...

在我的循环中,我做：

//in params:
serviceClass = ServiceForRecord.class;
entityClass = Record.class;
saveMethod = "saveRecord";
//loop prepare
service = getApplicationContext().getBean(serviceClass);
serviceSave = serviceClass.getMethod("saveRecord",Record.class,String.class);
while (condition) {
entity =  BeanUtils.instantiate(entityClass);
//setup entity
serviceSave.invoke(service,entity,"testUser");
//catch error
} //end while

[编辑]
堆栈跟踪：

PreparedStatementProxyHandler(AbstractProxyHandler).errorIfInvalid() line: 63   
PreparedStatementProxyHandler(AbstractStatementProxyHandler).continueInvocation(Object,Method,Object[]) line: 100 
PreparedStatementProxyHandler(AbstractProxyHandler).invoke(Object,Object[]) line: 81   
$Proxy100.clearBatch() line: not available  
NonBatchingBatch(AbstractBatchImpl).releaseStatements() line: 163   
NonBatchingBatch(AbstractBatchImpl).execute() line: 152 
JdbcCoordinatorImpl.getBatch(BatchKey) line: 151    
SingleTableEntityPersister(AbstractEntityPersister).insert(Serializable,Object[],boolean[],int,String,Object,SessionImplementor) line: 2940   
SingleTableEntityPersister(AbstractEntityPersister).insert(Serializable,SessionImplementor) line: 3403   
EntityInsertAction.execute() line: 88   
ActionQueue.execute(Executable) line: 362   
ActionQueue.executeActions(List) line: 354  
ActionQueue.executeActions() line: 275  
DefaultFlushEventListener(AbstractFlushingEventListener).performExecutions(EventSource) line: 326   
DefaultFlushEventListener.onFlush(FlushEvent) line: 52  
SessionImpl.flush() line: 1210  
SessionImpl.managedFlush() line: 399    
JdbcTransaction.beforeTransactionCommit() line: 101 
JdbcTransaction(AbstractTransactionImpl).commit() line: 175 
HibernateTransactionManager.doCommit(DefaultTransactionStatus) line: 480    
HibernateTransactionManager(AbstractPlatformTransactionManager).processCommit(DefaultTransactionStatus) line: 754   
HibernateTransactionManager(AbstractPlatformTransactionManager).commit(TransactionStatus) line: 723 
TransactionInterceptor(TransactionAspectSupport).commitTransactionAfterReturning(TransactionAspectSupport$TransactionInfo) line: 392    
TransactionInterceptor.invoke(MethodInvocation) line: 120   
ReflectiveMethodInvocation.proceed() line: 172  
AfterReturningAdviceInterceptor.invoke(MethodInvocation) line: 50   
ReflectiveMethodInvocation.proceed() line: 172  
JdkDynamicAopProxy.invoke(Object,Object[]) line: 202   
$Proxy71.save(Account,String) line: not available  
GeneratedMethodAccessor115.invoke(Object,Object[]) line: not available 
DelegatingMethodAccessorImpl.invoke(Object,Object[]) line: not available   
Method.invoke(Object,Object...) line: not available    
ImportServiceProvider.save(Object,String) line: 380

[编辑]
我注意到的最后一件事是它不会发生在MS SQL Server上,只发生在Oracle上