SpringSource/spring-integration — pull request #824 by garyrussell (2013-06-12 16:38:05+00:00)
Title: INT-3064 Change MessageHeaders.Id Strategy

Use `com.eaio.uuid` by default and document how to replace
the default strategy.

Provide JDK and a simple incrementing incrementing implementation.

Add code to detect multiple contexts in the same classloaded using
the same strategy.

Add code to detect multiple IdGenerator beans and emit a WARN
instead of DEBUG, which is the case for no beans.