Default configuration of AbstractMessageChannelMessagingSendingTemplate leads to Jackson error: "Could not write JSON: Java 8 date/time type java.time.Instant not supported by default"

[0ka]

Type: Bug

Component: SQS

Describe the bug
Using Jackson 2.13 and trying to send messages (QueueMessagingTemplate.convertAndSend) that contains fields of Java date/time types lead to the following Jackson error:
"Could not write JSON: Java 8 date/time type java.time.Instant not supported by default: add Module "com.fasterxml.jackson.datatype:jackson-datatype-jsr310" to enable handling"

According to this ticket spring-projects/spring-boot#26859 Spring normally configure the ObjectMapper bean correct to support Java date/time during serialization.

But the class io.awspring.cloud.messaging.core.support.AbstractMessageChannelMessagingSendingTemplate creates an own MappingJackson2MessageConverter with a default ObjectMapper without using already configured beans.

I would expect that awspring also configure the ObjectMapper to support date/time types if com.fasterxml.jackson.datatype:jackson-datatype-jsr310 is on the class path or better to use an existing ObjectMapper bean.

[maciejwalkowiak]

We are using default ObjectMapper for deserialization, but as QueueMessagingTemplate bean is not created by auto-configuration, you must create it properly to get the support for already registered Jackson modules:

MappingJackson2MessageConverter converter = new MappingJackson2MessageConverter();
converter.setObjectMapper(objectMapper);
converter.setSerializedPayloadClass(String.class);
return new QueueMessagingTemplate(amazonSqs, (ResourceIdResolver) null, converter);

I believe we should auto-configure QueueMessagingTemplate.