Question: has anyone seen the following before?
[This is with 'All' config JBoss 4.2.1GA. and Spring 2.1M4 and Toplink Essentials JPA 2.0-b58g]
14:36:08,158 ERROR [org.jboss.web.tomcat.service.session.JBossCacheService] externalizeSession(): exception occurred externalizing session SessionBasedClusteredSession[id:ZhOYIR+Pdkv7GkUG3bjcsg** lastAccessedTime: 1192509366298 version: 3 lastOutdated: 0] java.io.NotSerializableException: org.springframework.orm.jpa.AbstractEntityManagerFactoryBean$ManagedEntityManagerFactoryInvocationHandler at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1081) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1375) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream