Consistent SmartLifecycle implementations

Issue: SPR-14233

spring-tx/src/main/java/org/springframework/jca/endpoint/GenericMessageEndpointManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2016 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -308,7 +308,7 @@ public class GenericMessageEndpointManager implements SmartLifecycle, Initializi
 	@Override
 	public void stop(Runnable callback) {
 		synchronized (this.lifecycleMonitor) {
-			this.stop();
+			stop();
 			callback.run();
 		}
 	}