Declare serialVersionUID on DefaultAopProxyFactory

Closes gh-27784

Author: jhoeller

spring-aop/src/main/java/org/springframework/aop/framework/DefaultAopProxyFactory.java

@@ -45,9 +45,10 @@
  * @see AdvisedSupport#setProxyTargetClass
  * @see AdvisedSupport#setInterfaces
  */
-@SuppressWarnings("serial")
 public class DefaultAopProxyFactory implements AopProxyFactory, Serializable {
 
+	private static final long serialVersionUID = 7930414337282325166L;
+
 
 	@Override
 	public AopProxy createAopProxy(AdvisedSupport config) throws AopConfigException {