Polish "Refactor iterator of Map with Java8's Map.forEach"

Closes gh-1459

spring-jms/src/main/java/org/springframework/jms/annotation/JmsListenerAnnotationBeanPostProcessor.java

@@ -226,7 +226,8 @@ public class JmsListenerAnnotationBeanPostProcessor
 			else {
 				// Non-empty set of methods
 				annotatedMethods.forEach((method, listeners) ->
-						listeners.forEach(listener -> processJmsListener(listener, method, bean)));
+						listeners.forEach(listener ->
+								processJmsListener(listener, method, bean)));
 				if (logger.isDebugEnabled()) {
 					logger.debug(annotatedMethods.size() + " @JmsListener methods processed on bean '" + beanName +
 							"': " + annotatedMethods);