@Bean(RocketMQMessageConverter.DEFAULT_NAME)
	@ConditionalOnMissingBean(name = { RocketMQMessageConverter.DEFAULT_NAME })
	public CompositeMessageConverter rocketMQMessageConverter() {
		return new RocketMQMessageConverter().getMessageConverter();
	}
issue: https://github.com/alibaba/spring-cloud-alibaba/issues/2742
if you want to customize a bean, please use this BeanName {@code RocketMQMessageConverter.DEFAULT_NAME}.
spring-cloud-alibaba-starters/spring-cloud-starter-bus-rocketmq/src/main/java/com/alibaba/cloud/bus/rocketmq/autoconfigurate/RocketMQBusAutoConfiguration.java