Lambda field (functional interface) deserialize failed with CompatiableFieldSerializer #821
Description
Describe the bug
We have a class with a field to store lambda, the field's class is a functional interface, something like this:
public class TestClass implements Serializable {
private static final long serialVersionUID = 4061358520297707007L;
@FunctionalInterface
public interface Callback extends Serializable {
void execute();
}
private Callback callback;
}When serialize then deserialize this class with CompatiableFieldSerializer, we encountered this exception:
Caused by: com.esotericsoftware.kryo.KryoException: Read type is incompatible with the field type: com.esotericsoftware.kryo.serializers.ClosureSerializer$Closure -> com.esotericsoftware.kryo.serializers.ClosureSerializer$Closure (com.xxx.TestClass#callback)
I believe it's because CompatiableFieldSerializer cached the field's value class (set to TestClass#callback) during serialization, but the actual output content is ClosureSerializer$Closure. Then during deserialization, it's mismatched.
To Reproduce
Use CompatiableFieldSerializer to serialize a class with lambda field(s), then deserialize it.
Environment:
- OS: Ubuntu 20.04
- JDK Version: 8
- Kryo Version: 5.0.4
Additional context
I switch to FieldSerializer it works fine, but I didn't test TaggedFieldSerializer and VersionFieldSerializer.