Hi,
I'm not aware of the requirement to implement the Serializable interface, however I'm aware of requirement to implement the Cloneable interface. The Cloneable interface acts like a flag signaling (the compiler I ass u me) that your objects are prepared to be cloned.
Maybe you can check if you're referring to Cloneable. I think that StarWars III goes into more detail about the clones, comes out in may I think???
[ January 12, 2005: Message edited by: Jimmy Die ]