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I'm using this <https://github.com/awslabs/aws-glue-schema-registry/blob/master/serializer-deserializer/src/main/java/com/amazonaws/services/schemaregistry/deserializers/GlueSchemaRegistryKafkaDeserializer.java|class> for Kafka deserialization and I'd like to wrap/extend it in some clean way so that result implements `Deserializer&lt;GenericRecord&gt;` instead of `Any`
What approaches can I use for that?

To start with I just created a wrapper class of sorts that implements `Deserializer&lt;GenericRecord&gt;` and instantiates a `GlueSchemaRegistryKafkaDeserializer` and all the override functions just call it with a case to `GenericRecord` when it deserializes

I had a look, that particular implementation is to deserialize arbitrary data/types. If you want a type specific wrapper what you'd need to do is have that wrapper forward the request, and then cast the result to the actual type. Alternatively you could do explicit error handling (wrong type)