Fix warning

spring-context/src/test/java/org/springframework/cache/config/CustomInterceptorTests.java

@@ -113,6 +113,7 @@ public class CustomInterceptorTests {
 	 * A test {@link CacheInterceptor} that handles special exception
 	 * types.
 	 */
+	@SuppressWarnings("serial")
 	static class TestCacheInterceptor extends CacheInterceptor {
 
 		@Override

spring-context/src/test/java/org/springframework/scheduling/annotation/AsyncExecutionTests.java

@@ -410,6 +410,7 @@ public class AsyncExecutionTests {
 
 
 	@Async
+	@SuppressWarnings("serial")
 	public static class AsyncClassBean implements Serializable, DisposableBean {
 
 		public void doSomething(int i) {