JIRA: https://jira.spring.io/browse/INT-3571 **Cherry-pick to 4.0.x** Introduce `LifecycleMessageSource` for `maint` versions to avoid undesired side-effects with already existing `... implements MessageSource<T>, Lifecycle`.
JIRA: https://jira.spring.io/browse/INT-3571 **Cherry-pick to 4.0.x** Introduce `LifecycleMessageSource` for `maint` versions to avoid undesired side-effects with already existing `... implements MessageSource<T>, Lifecycle`.