Added 'content-type' functionality to ObjectToJsonTransformer Added 'content-type' attribute to object-to-json-transformer element Added parser and usage tests to ensure propper overrides (see Mark's last comment here https://github.com/SpringSource/spring-integration/pull/409) Applied required changes to Amqp module to work with standard 'content-type' header INT-2453 polish based on PR comments INT-2453 polished test INT-2453 polished parser