Not Serializable Exception on server startup

[Muhammad Imad Qureshi]

Hi

I get an exception in my jboss console regarding one of my classes that it is not serializable when I start my jboss

[ManagerBase] IOException while loading persisted sessions: java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.r911.core.model.SurveyAnswer
java.io.WriteAbortedException: writing aborted; java.io.NotSerializableException: com.r911.core.model.SurveyAnswer

But when I restart my jboss I dont get this exception and then if I shutdown and start I get it again and that how it alternates. Can some tell me what is wrong.
Thanks
Imad

[Reid M. Pinchback]

Is this a webapp? Sounds like the kind of error you'd get if you bound something to an HttpSession that wasn't serializable. If the server tried to restore the session (which for the integrated Tomcat I believe it does) then you might see messages like this.