diff --git a/spring-test/src/main/java/org/springframework/test/util/ReflectionTestUtils.java b/spring-test/src/main/java/org/springframework/test/util/ReflectionTestUtils.java
index f40227fb8c..65fe04fb84 100644
--- a/spring-test/src/main/java/org/springframework/test/util/ReflectionTestUtils.java
+++ b/spring-test/src/main/java/org/springframework/test/util/ReflectionTestUtils.java
@@ -159,8 +159,10 @@ public class ReflectionTestUtils {
 		Assert.isTrue(targetObject != null || targetClass != null,
 			"Either targetObject or targetClass for the field must be specified");
 
+		Object ultimateTargetObject = AopTestUtils.getUltimateTargetObject(targetObject);
+
 		if (targetClass == null) {
-			targetClass = targetObject.getClass();
+			targetClass = ultimateTargetObject.getClass();
 		}
 
 		Field field = ReflectionUtils.findField(targetClass, name, type);
@@ -176,7 +178,7 @@ public class ReflectionTestUtils {
 					targetObject, targetClass, value));
 		}
 		ReflectionUtils.makeAccessible(field);
-		ReflectionUtils.setField(field, targetObject, value);
+		ReflectionUtils.setField(field, ultimateTargetObject, value);
 	}
 
 	/**
@@ -234,8 +236,10 @@ public class ReflectionTestUtils {
 		Assert.isTrue(targetObject != null || targetClass != null,
 			"Either targetObject or targetClass for the field must be specified");
 
+		Object ultimateTargetObject = AopTestUtils.getUltimateTargetObject(targetObject);
+
 		if (targetClass == null) {
-			targetClass = targetObject.getClass();
+			targetClass = ultimateTargetObject.getClass();
 		}
 
 		Field field = ReflectionUtils.findField(targetClass, name);
@@ -250,7 +254,7 @@ public class ReflectionTestUtils {
 					targetObject, targetClass));
 		}
 		ReflectionUtils.makeAccessible(field);
-		return ReflectionUtils.getField(field, targetObject);
+		return ReflectionUtils.getField(field, ultimateTargetObject);
 	}
 
 	/**
diff --git a/spring-test/src/test/java/org/springframework/test/util/ReflectionTestUtilsTests.java b/spring-test/src/test/java/org/springframework/test/util/ReflectionTestUtilsTests.java
index fa692ed9b1..572eea0169 100644
--- a/spring-test/src/test/java/org/springframework/test/util/ReflectionTestUtilsTests.java
+++ b/spring-test/src/test/java/org/springframework/test/util/ReflectionTestUtilsTests.java
@@ -22,6 +22,9 @@ import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
 
+import org.springframework.aop.framework.ProxyCreatorSupport;
+import org.springframework.aop.framework.ProxyFactory;
+import org.springframework.aop.support.AopUtils;
 import org.springframework.test.util.subpackage.Component;
 import org.springframework.test.util.subpackage.LegacyEntity;
 import org.springframework.test.util.subpackage.Person;
@@ -359,4 +362,35 @@ public class ReflectionTestUtilsTests {
 		invokeMethod(component, "configure", new Integer(42), "enigma", "baz", "quux");
 	}
 
+	@Test
+	public void setAndGetFieldOnProxiedInstance() throws Exception  {
+		ProxyFactory pf = new ProxyFactory(this.person);
+		pf.setProxyTargetClass(true);
+
+		Person proxyPerson = (Person) pf.getProxy();
+
+		setField(proxyPerson, "id", new Long(99), long.class);
+		setField(proxyPerson, "name", "Tom");
+		setField(proxyPerson, "age", new Integer(42));
+		setField(proxyPerson, "eyeColor", "blue", String.class);
+		setField(proxyPerson, "likesPets", Boolean.TRUE);
+		setField(proxyPerson, "favoriteNumber", PI, Number.class);
+
+		assertEquals("ID (private field in a superclass)", 99, person.getId());
+		assertEquals("name (protected field)", "Tom", person.getName());
+		assertEquals("age (private field)", 42, person.getAge());
+		assertEquals("eye color (package private field)", "blue", person.getEyeColor());
+		assertEquals("'likes pets' flag (package private boolean field)", true, person.likesPets());
+		assertEquals("'favorite number' (package field)", PI, person.getFavoriteNumber());
+
+		assertEquals(new Long(99), getField(proxyPerson, "id"));
+		assertEquals("Tom", getField(proxyPerson, "name"));
+		assertEquals(new Integer(42), getField(proxyPerson, "age"));
+		assertEquals("blue", getField(proxyPerson, "eyeColor"));
+		assertEquals(Boolean.TRUE, getField(proxyPerson, "likesPets"));
+		assertEquals(PI, getField(proxyPerson, "favoriteNumber"));
+
+
+	}
+
 }