spring cloud gcp pub/sub Jackson messageConverter deserialize fail - google-cloud-pubsub

Question

I'm trying to receive and process messages through GCP Pub/Sub.
I tried to convert and receive the payload part of the message through JacksonPubSubMessageConverter, but it failed.
It seems that I am not handling byte[] properly inside JacksonPubSubMessageConverter. Do I need to change ObjectMapper settings or override JacksonPubSubMessageConverter?
Below is a code example.
#Slf4j
#Configuration
public class PubSubConfig {
#Bean
public PubSubMessageConverter pubSubMessageConverter(ObjectMapper objectMapper) {
return new JacksonPubSubMessageConverter(objectMapper);
}
}
// ...
#Getter
#Setter
#ToString
#NoArgsConstructor(access = AccessLevel.PROTECTED)
public class MessageDTO {
private PubSubAction action;
#JsonFormat(pattern = "yyyy-MM-dd")
private LocalDate startedAt;
private Boolean dryRun;
}
// ...
public enum PubSubAction {
MY_ACTION("my action"),
ETC("etc action");
private final String description;
PubSubAction(String description) {
this.description = description;
}
#JsonCreator
public static PubSubAction create(String name) {
return Stream.of(PubSubAction.values())
.filter(pubSubAction -> pubSubAction.name().equals(name))
.findAny()
.orElse(null);
}
}
// ...
class MyConsumer() {
private final String subscriptionName;
private final PubSubTemplate pubSubTemplate;
public MyConsumer(
String subscriptionName,
PubSubTemplate pubSubTemplate
) {
this.subscriptionName = subscriptionName;
this.pubSubTemplate = pubSubTemplate;
}
private void consume(
ConvertedBasicAcknowledgeablePubsubMessage<MessageDTO> convertedMessage) {
try {
MessageDTO payload = convertedMessage.getPayload();
log.debug("payload {}", payload);
// payload MessageDTO(action=MY_ACTION, startedAt=null, dryRun=null)
convertedMessage.ack();
} catch (Exception e) {
log.error("Unknown Exception {} {}", e.getMessage(), this.subscriptionName, e);
}
}
private Consumer<ConvertedBasicAcknowledgeablePubsubMessage<MessageDTO>> convertConsumer() {
return this::consume;
}
public void subscribe() {
log.info("Subscribing to {}", subscriptionName);
pubSubTemplate.subscribeAndConvert(subscriptionName, this.convertConsumer(),
MessageDTO.class);
}
}