How can I serialize an object that does not implement Serializable? I cannot mark it Serializable because the class is from a 3rd party library.
You can't serialise a class that doesn't implement
Serializable, but you can wrap it in a class that does. To do this, you should implement
writeObject on your wrapper class so you can serialise its objects in a custom way.
writeObject, first call
defaultWriteObjecton the stream to store all the non-transient fields, then call other methods to serialise the individual properties of your non-serialisable object.
readObject, first call
defaultReadObjecton the stream to read back all the non-transient fields, then call other methods (corresponding to the ones you added to
writeObject) to deserialise your non-serialisable object.
I hope this makes sense. :-)