Jackson Map to Array serialisation

MapToArraySerializer.java

package com.red.bol.serializer;

import com.fasterxml.jackson.core.JsonGenerator;
import com.fasterxml.jackson.databind.JsonSerializer;
import com.fasterxml.jackson.databind.SerializerProvider;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.util.Map;

public class MapToArraySerializer extends JsonSerializer<Map<?, ?>> {

    private static final Logger LOGGER = LoggerFactory.getLogger(MapToArraySerializer.class);

    @Override
    public void serialize(Map<?, ?> map, JsonGenerator generator, SerializerProvider serializers) throws IOException {

        generator.writeStartArray();

        map.forEach((key, value) -> {
            try {
                generator.writeStartObject();
                generator.writeObjectField(key.toString(), value);
                generator.writeEndObject();
            } catch (IOException e) {
                LOGGER.error("Cannot serialize entry with key {} and value {}", key, value);
            }

        });

        generator.writeEndArray();
    }
}

Pojo.java

    @JsonSerialize(using = MapToArraySerializer.class)
    private Map<?,?> items;