spring-projects/spring-amqp — pull request #206 by artembilan (2014-08-27 09:52:10+00:00)
Title: AmqpHeaders: add `PUBLISH_CONFIRM_NACK_CAUSE`

Since `AmqpHeaders` has been moved from SI, there is really a reason to deprecate that class in SI and use this one from AMQP.
To achieve that there is need to add one more recant `PUBLISH_CONFIRM_NACK_CAUSE` constant.