On 9/30/05, Frank W. Zammetti <[EMAIL PROTECTED]> wrote: > > I'm not sure it is a stupid question... I guess this enters the realm of > generic Java question, but I can't say I've ever thought about this > before... what happens if you have a class that implements serializable, > and you then extend that class and add a member that is NOT serializable? > Does that get flagged at compile-time?
No. It is an error but it will be detected only at runtime. A NotSerializableException will be thrown when an instance of the subclass is serialized. If you extend a class that is flagged to be Serializable, you must assure that all the members are Serializable. Adding a non Serializable member to a subclass of a Serializable class is the same thing as adding a non Serializable member to the Serializable class. And that's an error which will be detected at runtime. Tamas
