import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.deser.std.StdScalarDeserializer;

import java.io.IOException;
import java.util.UUID;

public class UUIDDeserializer extends StdScalarDeserializer<UUID> {

    public UUIDDeserializer() {
        super(UUID.class);
    }

    @Override
    public UUID deserialize(JsonParser parser, DeserializationContext context) throws IOException {
        String value = parser.getValueAsString();
        return UUID.fromString(value);
    }
}

This is an example of a custom deserializer for a UUID type in Jackson. This class extends StdScalarDeserializer and overrides the deserialize method to handle converting a JSON value to a UUID instance.

It uses the parser.getValueAsString() method to get the string representation of the JSON value and then it uses UUID.fromString(value) to deserialize the string to a UUID instance.

You will need to use this deserializer along with ObjectMapper.registerModule() method to register this deserializer to be used by the ObjectMapper.

It is important to note that this custom deserializer is not necessary as UUID deserialization is handled by default by the Jackson library, but you can use this custom deserializer if you want to implement specific behavior.