revised target class check for non-Spring CGLIB proxy variants (SPR-5694)

org.springframework.aop/src/main/java/org/springframework/aop/support/AopUtils.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2008 the original author or authors.
+ * Copyright 2002-2009 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.
@@ -110,7 +110,7 @@ public abstract class AopUtils {
 		if (candidate instanceof TargetClassAware) {
 			return ((TargetClassAware) candidate).getTargetClass();
 		}
-		if (isCglibProxyClass(candidate.getClass())) {
+		if (isCglibProxy(candidate)) {
 			return candidate.getClass().getSuperclass();
 		}
 		return candidate.getClass();