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Hibernate version:
Hi all,

I have just set up Hibernate 3.0 on JBOSS 4.0.2 on Eclipse 3.1. I've got this error and didn't know what i means..

exception

javax.servlet.ServletException: could not deserialize
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:516)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:423)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:226)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1164)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:415)
javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.displaytag.filter.ResponseOverrideFilter.doFilter(ResponseOverrideFilter.java:125)


root cause

org.hibernate.type.SerializationException: could not deserialize
org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:211)
org.hibernate.util.SerializationHelper.deserialize(SerializationHelper.java:234)
org.hibernate.type.SerializableType.fromBytes(SerializableType.java:78)
org.hibernate.type.SerializableType.get(SerializableType.java:39)
org.hibernate.type.NullableType.nullSafeGet(NullableType.java:77)
org.hibernate.type.NullableType.nullSafeGet(NullableType.java:68)
org.hibernate.type.AbstractType.hydrate(AbstractType.java:80)
org.hibernate.persister.entity.BasicEntityPersister.hydrate(BasicEntityPersister.java:1690)
org.hibernate.loader.Loader.loadFromResultSet(Loader.java:991)
org.hibernate.loader.Loader.instanceNotYetLoaded(Loader.java:942)
org.hibernate.loader.Loader.getRow(Loader.java:855)
org.hibernate.loader.Loader.getRowFromResultSet(Loader.java:305)
org.hibernate.loader.Loader.doQuery(Loader.java:412)
org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:218)
org.hibernate.loader.Loader.doList(Loader.java:1593)
org.hibernate.loader.Loader.list(Loader.java:1577)
org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:395)
org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:271)
org.hibernate.impl.SessionImpl.list(SessionImpl.java:844)
org.hibernate.impl.QueryImpl.list(QueryImpl.java:74)

......

Anyone have any idea...???Eagerly awaiting rescue... :) THKS!

-David-

Do all of your POJOs, and their identifier properties, implement Serializable ?