How can I find out the serialVersionUID of a serialized Java object?

Question

I have several serializable classes that were compiled without specifying a serialVersionUID. I now need to add some data members to these classes but wish to preserve some alre

Answer 1

What I usually do is, I compile the code, try to run it, and the raised exception mentions the offending SVUID, so I can cut and paste it in my own code. Crude, but it works.