polishing

org.springframework.web.servlet/src/main/java/org/springframework/web/servlet/resource/ResourceHttpRequestHandler.java

 /*
- * Copyright 2002-2010 the original author or authors.
+ * Copyright 2002-2011 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.
@@ -18,7 +18,6 @@ package org.springframework.web.servlet.resource;
 
 import java.io.IOException;
 import java.util.List;
-
 import javax.servlet.ServletException;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
@@ -76,7 +75,7 @@ public class ResourceHttpRequestHandler extends WebContentGenerator implements H
 	 * for serving static resources.
 	 */
 	public void setLocations(List<Resource> locations) {
-		Assert.notEmpty(locations, "Location list must not be empty");
+		Assert.notEmpty(locations, "Locations list must not be empty");
 		this.locations = locations;
 	}
 
@@ -174,14 +173,16 @@ public class ResourceHttpRequestHandler extends WebContentGenerator implements H
 	}
 
 	/**
-	 * Returns {@code true} if the given path is not a valid resource path.
-	 * The default implementation rejects paths containing "WEB-INF" or "META-INF" as well as paths with
-	 * relative paths ("../") that result in access of a parent directory. 
+	 * Validates the given path: returns {@code true} if the given path is not a valid resource path.
+	 * <p>The default implementation rejects paths containing "WEB-INF" or "META-INF" as well as paths
+	 * with relative paths ("../") that result in access of a parent directory.
+	 * @param path the path to validate
+	 * @return {@code true} if the path has been recognized as invalid, {@code false} otherwise
 	 */
 	protected boolean isInvalidPath(String path) {
 		return (path.contains("WEB-INF") || path.contains("META-INF") || StringUtils.cleanPath(path).startsWith(".."));
 	}
-	
+
 	/**
 	 * Determine an appropriate media type for the given resource.
 	 * @param resource the resource to check

org.springframework.web.servlet/src/test/java/org/springframework/web/servlet/resource/ResourceHttpRequestHandlerTests.java

 /*
- * Copyright 2002-2010 the original author or authors.
+ * Copyright 2002-2011 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.
@@ -20,7 +20,6 @@ import java.util.ArrayList;
 import java.util.List;
 import javax.servlet.http.HttpServletResponse;
 
-import static org.junit.Assert.*;
 import org.junit.Before;
 import org.junit.Test;
 
@@ -32,6 +31,8 @@ import org.springframework.mock.web.MockServletContext;
 import org.springframework.web.HttpRequestMethodNotSupportedException;
 import org.springframework.web.servlet.HandlerMapping;
 
+import static org.junit.Assert.*;
+
 /**
  * @author Keith Donald
  * @author Jeremy Grelle