ultimateTargetClass falls back to raw class instead of returning null

org.springframework.aop/src/main/java/org/springframework/aop/framework/AopProxyUtils.java

@@ -21,6 +21,7 @@ import java.util.Arrays;
 import org.springframework.aop.SpringProxy;
 import org.springframework.aop.TargetClassAware;
 import org.springframework.aop.TargetSource;
+import org.springframework.aop.support.AopUtils;
 import org.springframework.aop.target.SingletonTargetSource;
 import org.springframework.util.Assert;
 
@@ -62,6 +63,9 @@ public abstract class AopProxyUtils {
 			}
 			current = nested;
 		}
+		if (result == null) {
+			result = (AopUtils.isCglibProxy(candidate) ? candidate.getClass().getSuperclass() : candidate.getClass());
+		}
 		return result;
 	}