hibernate异常could not deserialize,初学帮分析一下

Question

环境
xp mysql hibernate3代码
--------------------------------------------------------------public List find_index_one(String a,String b) {

List list =null;
try {

String sql = "from po.Info  where  other = "+a+" and status != -1 order by other2 desc";
//order by asc
//order by id desc
Session studentSession = HibernateSessionFactory.currentSession();
Query query = studentSession.createQuery(sql);
query.setFirstResult(0);
query.setMaxResults(Integer.parseInt(b));
list= (List)query.list();
System.out.println(list.size());
} catch (HibernateException e) {
// TODO 自动生成 catch 块
e.printStackTrace();
}
return list;
}异常
-------------------------------------------------------------
org.hibernate.type.SerializationException: could not deserialize
        at org.hibernate.util.SerializationHelper.deserialize(SerializationHelpe
r.java:211)
        at org.hibernate.util.SerializationHelper.deserialize(SerializationHelpe
r.java:234)
        at org.hibernate.type.SerializableType.fromBytes(SerializableType.java:7
8)
        at org.hibernate.type.SerializableType.get(SerializableType.java:39)
        at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:77)
        at org.hibernate.type.NullableType.nullSafeGet(NullableType.java:68)
        at org.hibernate.type.AbstractType.hydrate(AbstractType.java:80)
        at org.hibernate.persister.entity.BasicEntityPersister.hydrate(BasicEnti
tyPersister.java:1690)
        at org.hibernate.loader.Loader.loadFromResultSet(Loader.java:991)
        at org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:942)
        at org.hibernate.loader.Loader.getRow(Loader.java:855)
        at org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:305)
        at org.hibernate.loader.Loader.doQuery(Loader.java:412)
        at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Lo
ader.java:218)
        at org.hibernate.loader.Loader.doList(Loader.java:1593)
        at org.hibernate.loader.Loader.list(Loader.java:1577)
        at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:395)
        at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.ja
va:271)
        at org.hibernate.impl.SessionImpl.list(SessionImpl.java:844)
        at org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)
        at bo.InfoFacade.find_index_one(InfoFacade.java:62)
        at org.apache.jsp.one_005f7_jsp._jspService(one_005f7_jsp.java:65)
        at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
        at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper
.java:311)
        at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:3
01)
        at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
        at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:284)
        at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:204)
        at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:256)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:151)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:564)
        at org.apache.catalina.core.StandardContextValve.invokeInternal(Standard
ContextValve.java:245)
        at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:199)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:151)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:564)
        at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:195)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:151)
        at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:164)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:149)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:564)
        at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:156)
        at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValv
eContext.java:151)
        at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.jav
a:564)
        at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:972)        at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:21
1)
        at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:805)
        at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:696)
        at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java
:605)
        at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadP
ool.java:677)
        at java.lang.Thread.run(Thread.java:536)
Caused by: java.io.StreamCorruptedException: invalid stream header
        at java.io.ObjectInputStream.readStreamHeader(ObjectInputStream.java:737
)
        at java.io.ObjectInputStream.<init>(ObjectInputStream.java:253)
        at org.hibernate.util.SerializationHelper$CustomObjectInputStream.<init>
(SerializationHelper.java:246)
        at org.hibernate.util.SerializationHelper.deserialize(SerializationHelpe
r.java:203)