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JavaIntermediate#serialization
JavaIntermediate#serialization
What is the purpose of serialVersionUID?
A unique identifier for a Serializable class used during deserialization to verify the sender and receiver classes are compatible. If not declared explicitly, the JVM generates one based on class details, which can silently break compatibility across versions.
Example
class User implements Serializable {
private static final long serialVersionUID = 1L; // fixed manually for version safety
}