ObjectMapper MixIn configuration for Avro classes

ObjectMapperConfiguration.java

import com.fasterxml.jackson.annotation.JsonAutoDetect;
import org.apache.avro.generic.GenericContainer;
import org.springframework.boot.autoconfigure.jackson.Jackson2ObjectMapperBuilderCustomizer;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.json.Jackson2ObjectMapperBuilder;

@Configuration
public class ObjectMapperConfiguration {

    /**
     * The context’s Jackson2ObjectMapperBuilder can be customized by one or more Jackson2ObjectMapperBuilderCustomizer beans.
     * Such customizer beans can be ordered (Boot’s own customizer has an order of 0), letting additional customization be applied both before and after Boot’s customization.
     */
    @Bean
    Jackson2ObjectMapperBuilderCustomizer jacksonCustomizer() {

        // apply AvroSchemaJacksonMixin for every Avro class that needs to be [de]serialized as Json
        return (Jackson2ObjectMapperBuilder jacksonObjectMapperBuilder) ->
            jacksonObjectMapperBuilder.mixIn(GenericContainer.class, AvroSchemaJacksonMixin.class);
    }

    /**
     * Use only public properties to serialize Avro objects excluding Avro specific fields and methods.
     */
    @JsonAutoDetect(
        fieldVisibility = JsonAutoDetect.Visibility.ANY,
        getterVisibility = JsonAutoDetect.Visibility.NONE,
        setterVisibility = JsonAutoDetect.Visibility.NONE,
        creatorVisibility = JsonAutoDetect.Visibility.ANY
    )
    static abstract class AvroSchemaJacksonMixin {
    }
}

AvroSchemaJacksonMixin definition above uses fields names instead of getters/setters.
Alternatively, specific accessor methods can be ignored:

    abstract static class AvroSchemaJacksonMixin {
        AvroSchemaJacksonMixin() {
        }

        @JsonIgnore
        abstract void getClassSchema();

        @JsonIgnore
        abstract void getSpecificData();

        @JsonIgnore
        abstract void get();

        @JsonIgnore
        abstract void getSchema();
    }