我使用 james2.3.2 作为我的邮件服务器，后端是 mysql 5.5。我收到如下异常：23/06/11 16:39:49 DEBUG mailstore: 异常读取属性 Mail1308818378708-0-to-163.com in spool
java.io.InvalidClassException: [Ljava.lang.StackTraceElement;; enum descriptor has non-zero serialVersionUID: 163864874655243298
at java.io.ObjectStreamClass.readNonProxy(ObjectStreamClass.java:620)
at java.io.ObjectInputStream.readClassDescriptor(ObjectInputStream.java:789)
at java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1534)
at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1466)
at java.io.ObjectInputStream.readArray(ObjectInputStream.java:1591)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1299)
at java.io.ObjectInputStream.defaultReadFields(ObjectInputStream.java:1910)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1834)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
at java.util.HashMap.readObject(HashMap.java:1067)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at java.io.ObjectStreamClass.invokeReadObject(ObjectStreamClass.java:946)
at java.io.ObjectInputStream.readSerialData(ObjectInputStream.java:1812)
at java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:1719)
at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1305)
at java.io.ObjectInputStream.readObject(ObjectInputStream.java:348)
at org.apache.james.mailrepository.JDBCMailRepository.retrieve(JDBCMailRepository.java:846)
at org.apache.james.mailrepository.JDBCSpoolRepository.accept(JDBCSpoolRepository.java:203)
at org.apache.james.mailrepository.JDBCSpoolRepository.accept(JDBCSpoolRepository.java:126)
at org.apache.james.mailrepository.MailStoreSpoolRepository.accept(MailStoreSpoolRepository.java:105)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:592)
at org.apache.avalon.phoenix.components.application.BlockInvocationHandler.invoke(BlockInvocationHandler.java:134)
at $Proxy5.accept(Unknown Source)
at org.apache.james.transport.JamesSpoolManager.run(JamesSpoolManager.java:299)
at java.lang.Thread.run(Thread.java:595)
如何解决这个问题？谢谢！