RedisQMDE Delay stop Until Last Read
JIRA: https://jira.spring.io/browse/INT-3442 Previously `RedisQueueMessageDrivenEndpoint.stop()` returned immediately. It caused an issue when one more `message` might be read and processed to stopped app. * Introduce `AbstractEndpoint#lifecycleCondition` and wait on it from `RedisQueueMessageDrivenEndpoint.doStop()` and `signal()` it from `ListenerTask`. * Since everything is done around `lifecycleLock` the `RedisQueueMessageDrivenEndpoint.stop()` waits for the proper 'last' message process. * Add tiny `Thread.sleep(1)` to the `popMessageAndSend` cycle to free `lifecycleLock` for other Threads, e.g. `stop()` INT-3442: Get rid of `lock` from listener cycle * Introduce `stopTimeout` to minimize the `stop` thread blocking * If the message is returned after that timeout it moved back to Redis List using `RPUSH` INT-3442: Addressing PR comments
Spring Integration 
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