Do not sort the mvc:resources location attribute

Update ResourcesBeanDefinitionParser to use ensure that location
attribute values remain in the order that they are specified. The
order was inadvertently changed in commit 3838d159f3 due to the use
of StringUtils.commaDelimitedListToSet which sorts items.

Issue: SPR-10355

spring-webmvc/src/main/java/org/springframework/web/servlet/config/ResourcesBeanDefinitionParser.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2012 the original author or authors.
+ * Copyright 2002-2013 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.
@@ -16,6 +16,7 @@
 
 package org.springframework.web.servlet.config;
 
+import java.util.Arrays;
 import java.util.Map;
 
 import org.w3c.dom.Element;
@@ -89,7 +90,7 @@ class ResourcesBeanDefinitionParser implements BeanDefinitionParser {
 		}
 
 		ManagedList<String> locations = new ManagedList<String>();
-		locations.addAll(StringUtils.commaDelimitedListToSet(locationAttr));
+		locations.addAll(Arrays.asList(StringUtils.commaDelimitedListToStringArray(locationAttr)));
 
 		RootBeanDefinition resourceHandlerDef = new RootBeanDefinition(ResourceHttpRequestHandler.class);
 		resourceHandlerDef.setSource(source);