GatewayProxyFactoryBean doesn't support Message<?> receive only variant [INT-4070]

[spring-operator]

Artem Bilan opened INT-4070 and commented

Looks like after the change dc86d88#diff-62dc05a878e8d43158ee7f80f233a38dL174
we lost the ability to have messaging gateway this way:

@Gateway(replyChannel = "fromKafka", replyTimeout = 10000)
Message<?> receiveFromKafka();

That's because the code in the MessagingGatewaySupport like:

protected Object receive() {
...
    return this.messagingTemplate.receiveAndConvert(replyChannel, null);
}

returns exactly payload, but not Message<?> as GatewayProxyFactoryBean expect:

if (shouldReturnMessage) {
	return gateway.receive();
}

---

Affects: 4.0.8, 3.0.8, 4.1.8, 4.3 GA, 4.2.8

Reference URL: spring-projects/spring-integration-samples#171

Issue Links:

• Consider to remove transitional global properties [INT-4071] #8012 Consider to remove transitional global properties

Referenced from: pull request #1849