Sneaked in test for covariant return type narrowing in a getter method

Issue: SPR-10995

spring-beans/src/test/java/org/springframework/tests/sample/beans/DerivedTestBean.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.
@@ -71,6 +71,11 @@ public class DerivedTestBean extends TestBean implements Serializable, BeanNameA
 		setSpouse(new TestBean(name));
 	}
 
+	@Override
+	public TestBean getSpouse() {
+		return (TestBean) super.getSpouse();
+	}
+
 
 	public void initialize() {
 		this.initialized = true;

spring-beans/src/test/resources/org/springframework/beans/factory/xml/collections.xml

@@ -35,11 +35,10 @@
 		</property>
 	</bean>
 
-	<bean id="pJenny" class="org.springframework.tests.sample.beans.TestBean" scope="prototype">
+	<bean id="pJenny" class="org.springframework.tests.sample.beans.DerivedTestBean" scope="prototype">
 		<property name="name"><value>Jenny</value></property>
 		<property name="age"><value>30</value></property>
 		<property name="spouse">
-		<!-- Could use id and href -->
 			<ref local="david"/>
 		</property>
 	</bean>