Question 30

Explanation

Spring doc:
EnableAspectJAutoProxy

Enables support for handling components marked with AspectJ's @Aspect annotation.

To be used on @Configuration classes as follows:

 @Configuration
 @EnableAspectJAutoProxy
 public class AppConfig {
 
     @Bean
     public FooService fooService() {
         return new FooService();
     }
 
     @Bean
     public MyAspect myAspect() {
         return new MyAspect();
     }
 }

https://docs.spring.io/spring-framework/docs/current/javadoc-api/org/springframework/context/annotation/EnableAspectJAutoProxy.html

Wrongs answers:

@Configuration does not contain such enableAspectJAutoProxy attribute.

There is no @AspectJConfiguration .

@Aspectis used to define aspects, not to enable aspect support.

More on AOP:

https://docs.spring.io/spring-framework/docs/2.5.x/reference/aop.html

Note:
I think it's worth adding, that

If AspectJ is on the classpath, Spring Boot’s auto-configuration will automatically enable AspectJ auto proxy such that @EnableAspectJAutoProxy is not required.

https://docs.spring.io/spring-boot/reference/features/aop.html