e84bab6e0a
Resolves https://github.com/spring-projects/spring-integration/issues/3648 When configuring a gateway proxy with XML, but specifying the payload expression on the method `@Gateway` annotation, the expression was ignored, even though it had been parsed. `@Payload` worked. With this change, if both `@Payload` and `@Gateway` are defined on a gateway method, `@Gateway.payloadExpression` wins. * Fix doc links.