Fixes https://github.com/spring-projects/spring-integration/issues/3506 Revise the `@Poller` usage in the messaging annotations from an array value to a single entry with a `ValueConstants.DEFAULT_NONE` for default value Code review feedback - Make annotation utils check for NONE more generic - Move docs to whats-new.adoc - Polish javadoc Code review feedback - simplify docs - simplify isProvided checks