JBOSS4.0.2集群的问题

Fail-over and load-balancing没有问题

但是在HTTP Session replication的时候老是报错

不知什么原因，哪位兄弟遇到过这种情况？

2005-12-29 10:31:37,040 DEBUG [org.jboss.web.tomcat.tc5.session.JBossCacheManager] check to see if needs to store and replicate session with id JSqg2KxrhylUrq7kdnZUcw**.server1

2005-12-29 10:31:37,040 DEBUG [org.jboss.web.tomcat.tc5.session.ClusteredSession] processSessionRepl(): session is dirty. Will increment version from: 2 and replicate.

2005-12-29 10:31:37,050 INFO [STDOUT] java.io.NotSerializableException: org.apache.catalina.connector.RequestFacade

2005-12-29 10:31:37,050 INFO [STDOUT] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1054)

2005-12-29 10:31:37,050 INFO [STDOUT] at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1332)

2005-12-29 10:31:37,050 INFO [STDOUT] at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1304)

2005-12-29 10:31:37,050 INFO [STDOUT] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247)

2005-12-29 10:31:37,050 INFO [STDOUT] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)

2005-12-29 10:31:37,050 INFO [STDOUT] at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1332)

2005-12-29 10:31:37,050 INFO [STDOUT] at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1304)

2005-12-29 10:31:37,050 INFO [STDOUT] at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247)

2005-12-29 10:31:37,050 INFO [STDOUT] at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052)

2005-12-29 10:31:37,050 INFO [STDOUT] at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278)

2005-12-29 10:31:37,050 INFO [STDOUT] at java.util.HashMap.writeObject(HashMap.java:978)