How to deserialize an object persisted in a db now when the object has different serialVersionUID

Question

My client has an oracle data base and an object was persisted as a blob field via objOutStream.writeObject, the object now has a different serialVersionUID (eve

Answer 1

You should be able to hack around the issue by overriding ObjectInputStream.readClassDescriptor.

Using XMLEncoder wont actually help with version migration as the compatibility rules are much the same. Really what should probably be doing is persisting the object in a relational form with the help of an ORM tool.

Probably the different serialVersionUIDs happened due to different synthetic members being generated by javac. Head the warnings and put serialVersionUID in.