How to ensure consistency of enums in Java serialization?

Posted by Uri on Stack Overflow See other posts from Stack Overflow or by Uri
Published on 2010-06-16T22:54:38Z Indexed on 2010/06/16 23:02 UTC
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When I serialize an object, I can use the serialVersionUID mechanism at the class level to ensure the compatibility of the two types.

However, what happens when I serialize fields of enum values? Is there a way to ensure that the enum type has not been manipulated between serialization and deserialization?

Suppose that I have an enum like OperationResult {SUCCESS, FAIL}, and a field called "result" in an object that is being serialized. How do I ensure, when the object is deserialized, that result is still correct even if someone maliciously reversed the two? (Suppose the enum is declared elsewhere as a static enum)

I am wondering out of curiosity - I use jar-level authentication to prevent manipulation.

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