Finding serialVersionUID of serialized object

java serialization serialversionuid
paweloque picture paweloque · Aug 24, 2009 · Viewed 19.2k times · Source

Is there a way to determine the generated serialVersionUID of a serialized Java object?

The problem is that I serialized an object without explicitely specifying the serialVersionUID. Now the deserialization process complains about class incompatibilities. However I didn't change the class in a way which would make it incompatible. So I assume that it is enough to specify the serialVersionUID in the class as it is stored in the object data. In order to do this I need to read the serialVersionUID from the serialized data.

Answer

Martins picture Martins · Nov 8, 2014

This works for me:

long serialVersionUID = ObjectStreamClass.lookup(YourObject.getClass()).getSerialVersionUID();

Hope it helps you too.

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