JIRA: https://jira.spring.io/browse/INT-3351 INT-3351: Polishing according PR comments * Add `property-placeholder` support for `@Poller` * Change `ref` to `value` * Add JavaDoc for `array` workaround * Add docs INT-3351: Polishing and fixes INT-3351 More Tests INT-3351: PR comments INT-3351 Final Polishing