INT-4221: Properly use Spring's Assert class

JIRA: https://jira.spring.io/browse/INT-4221

* Upgrade to those versions of Spring project dependencies which potentially will provide similar fix

**Cherry-pick to 4.3.x**

spring-integration-ip/src/test/java/org/springframework/integration/ip/udp/MulticastRule.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2015-2016 the original author or authors.
+ * Copyright 2015-2017 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.
@@ -47,7 +47,7 @@ public class MulticastRule extends TestWatcher {
 	}
 
 	public MulticastRule(String group) {
-		Assert.hasText(group);
+		Assert.hasText(group, "'group' must not be empty");
 		this.group = group;
 		System.setProperty("java.net.preferIPv4Stack", "true");
 		System.setProperty("multicast.group", this.group);