Compilation unit has been modified

Question

I created a DTO class and implemented the java serializable class. when I created auto generated uid, the above message was give. asking to save. what does this mean?

I did an internet search but could not find a suitable answer.

Answer 1

serialVersionUID is used during serialization/de-serialization process.
http://docs.oracle.com/javase/1.5.0/docs/api/java/io/Serializable.html