diff --git a/org.springframework.aop/src/main/java/org/springframework/aop/framework/AdvisedSupport.java b/org.springframework.aop/src/main/java/org/springframework/aop/framework/AdvisedSupport.java
index 2835ed4be93c51718491d8c5233998ec69bf0b3f..c550afb7e7c6f66615f72c51e0f0995d720f979f 100644
--- a/org.springframework.aop/src/main/java/org/springframework/aop/framework/AdvisedSupport.java
+++ b/org.springframework.aop/src/main/java/org/springframework/aop/framework/AdvisedSupport.java
@@ -58,6 +58,7 @@ import org.springframework.util.CollectionUtils;
  * @author Juergen Hoeller
  * @see org.springframework.aop.framework.AopProxy
  */
+@SuppressWarnings("unchecked")
 public class AdvisedSupport extends ProxyConfig implements Advised {
 
 	/** use serialVersionUID from Spring 2.0 for interoperability */
diff --git a/org.springframework.aop/src/main/java/org/springframework/aop/support/DefaultIntroductionAdvisor.java b/org.springframework.aop/src/main/java/org/springframework/aop/support/DefaultIntroductionAdvisor.java
index 0ab671d12fbbc1266d69f8864133588d68effbf9..194ae88656e5f6d9d8d07db9776e2387313cb70b 100644
--- a/org.springframework.aop/src/main/java/org/springframework/aop/support/DefaultIntroductionAdvisor.java
+++ b/org.springframework.aop/src/main/java/org/springframework/aop/support/DefaultIntroductionAdvisor.java
@@ -38,6 +38,7 @@ import org.springframework.util.ClassUtils;
  * @author Juergen Hoeller
  * @since 11.11.2003
  */
+@SuppressWarnings({ "unchecked", "serial" })
 public class DefaultIntroductionAdvisor implements IntroductionAdvisor, ClassFilter, Ordered, Serializable {
 
 	private final Advice advice;
diff --git a/org.springframework.core/src/main/java/org/springframework/util/TypeUtils.java b/org.springframework.core/src/main/java/org/springframework/util/TypeUtils.java
index d535f6358588170115ebbec2ec93cf81a2dcb091..b1cf5bba1cf01e3aff4254df77931c4563040745 100644
--- a/org.springframework.core/src/main/java/org/springframework/util/TypeUtils.java
+++ b/org.springframework.core/src/main/java/org/springframework/util/TypeUtils.java
@@ -38,6 +38,7 @@ public abstract class TypeUtils {
 	 * @param rhsType the value type that should be assigned to the target type
 	 * @return true if rhs is assignable to lhs
 	 */
+	@SuppressWarnings("unchecked")
 	public static boolean isAssignable(Type lhsType, Type rhsType) {
 		Assert.notNull(lhsType, "Left-hand side type must not be null");
 		Assert.notNull(rhsType, "Right-hand side type must not be null");