diff --git a/org.springframework.beans/src/test/java/org/springframework/beans/factory/xml/ProfileXmlBeanDefinitionTests.java b/org.springframework.beans/src/test/java/org/springframework/beans/factory/xml/ProfileXmlBeanDefinitionTests.java
index 1f9bc2a36aa..bc4e58426fc 100644
--- a/org.springframework.beans/src/test/java/org/springframework/beans/factory/xml/ProfileXmlBeanDefinitionTests.java
+++ b/org.springframework.beans/src/test/java/org/springframework/beans/factory/xml/ProfileXmlBeanDefinitionTests.java
@@ -1,5 +1,5 @@
 /*
- * 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.
@@ -34,6 +34,7 @@ import org.springframework.core.io.ClassPathResource;
  * activation and profile default scenarios.
  *
  * @author Chris Beams
+ * @author Sam Brannen
  * @since 3.1
  */
 public class ProfileXmlBeanDefinitionTests {
@@ -57,35 +58,35 @@ public class ProfileXmlBeanDefinitionTests {
 
 	private static final String TARGET_BEAN = "foo";
 
+	@Test(expected=IllegalArgumentException.class)
+	public void testProfileValidation() {
+		beanFactoryFor(PROD_ELIGIBLE_XML, NULL_ACTIVE);
+	}
+
 	@Test
 	public void testProfilePermutations() {
 		assertThat(beanFactoryFor(PROD_ELIGIBLE_XML, NONE_ACTIVE), not(containsTargetBean()));
-		assertThat(beanFactoryFor(PROD_ELIGIBLE_XML, NULL_ACTIVE), not(containsTargetBean()));
 		assertThat(beanFactoryFor(PROD_ELIGIBLE_XML, DEV_ACTIVE), not(containsTargetBean()));
 		assertThat(beanFactoryFor(PROD_ELIGIBLE_XML, PROD_ACTIVE), containsTargetBean());
 		assertThat(beanFactoryFor(PROD_ELIGIBLE_XML, MULTI_ACTIVE), containsTargetBean());
 
 		assertThat(beanFactoryFor(DEV_ELIGIBLE_XML, NONE_ACTIVE), not(containsTargetBean()));
-		assertThat(beanFactoryFor(DEV_ELIGIBLE_XML, NULL_ACTIVE), not(containsTargetBean()));
 		assertThat(beanFactoryFor(DEV_ELIGIBLE_XML, PROD_ACTIVE), not(containsTargetBean()));
 		assertThat(beanFactoryFor(DEV_ELIGIBLE_XML, DEV_ACTIVE), containsTargetBean());
 		assertThat(beanFactoryFor(DEV_ELIGIBLE_XML, MULTI_ACTIVE), containsTargetBean());
 
 		assertThat(beanFactoryFor(ALL_ELIGIBLE_XML, NONE_ACTIVE), containsTargetBean());
-		assertThat(beanFactoryFor(ALL_ELIGIBLE_XML, NULL_ACTIVE), containsTargetBean());
 		assertThat(beanFactoryFor(ALL_ELIGIBLE_XML, DEV_ACTIVE), containsTargetBean());
 		assertThat(beanFactoryFor(ALL_ELIGIBLE_XML, PROD_ACTIVE), containsTargetBean());
 		assertThat(beanFactoryFor(ALL_ELIGIBLE_XML, MULTI_ACTIVE), containsTargetBean());
 
 		assertThat(beanFactoryFor(MULTI_ELIGIBLE_XML, NONE_ACTIVE), not(containsTargetBean()));
-		assertThat(beanFactoryFor(MULTI_ELIGIBLE_XML, NULL_ACTIVE), not(containsTargetBean()));
 		assertThat(beanFactoryFor(MULTI_ELIGIBLE_XML, UNKNOWN_ACTIVE), not(containsTargetBean()));
 		assertThat(beanFactoryFor(MULTI_ELIGIBLE_XML, DEV_ACTIVE), containsTargetBean());
 		assertThat(beanFactoryFor(MULTI_ELIGIBLE_XML, PROD_ACTIVE), containsTargetBean());
 		assertThat(beanFactoryFor(MULTI_ELIGIBLE_XML, MULTI_ACTIVE), containsTargetBean());
 
 		assertThat(beanFactoryFor(MULTI_ELIGIBLE_SPACE_DELIMITED_XML, NONE_ACTIVE), not(containsTargetBean()));
-		assertThat(beanFactoryFor(MULTI_ELIGIBLE_SPACE_DELIMITED_XML, NULL_ACTIVE), not(containsTargetBean()));
 		assertThat(beanFactoryFor(MULTI_ELIGIBLE_SPACE_DELIMITED_XML, UNKNOWN_ACTIVE), not(containsTargetBean()));
 		assertThat(beanFactoryFor(MULTI_ELIGIBLE_SPACE_DELIMITED_XML, DEV_ACTIVE), containsTargetBean());
 		assertThat(beanFactoryFor(MULTI_ELIGIBLE_SPACE_DELIMITED_XML, PROD_ACTIVE), containsTargetBean());