olegz/spring-integration — comment on commit e5e391dee285b932f00d2d4a891f86d42d194571
File: spring-integration-amqp/src/main/java/org/springframework/integration/amqp/support/DefaultAmqpHeaderMapper.java line 74
By garyrussell:

Hmmm... the superclass introspects AmqpHeaders and comes up with a list of 18 headers; we then override it with the same 18 headers in a static array STANDARD_HEADER_NAMES in this subclass.