[Solved] What is wrong with the following @AfterReturning advice method?@AfterReturning(pointcut = "execution(* service.*.fetchData(..))", returning = "result") public void advice() { System.out.... | Spring Boot

Spring Boot - Aspect-Oriented Programming

What is wrong with the following @AfterReturning advice method?

@AfterReturning(pointcut = "execution(* service.*.fetchData(..))", returning = "result")
public void advice() {
    System.out.println("Result: " + result);
}

AThe @AfterReturning annotation cannot be used with void methods.

BThe pointcut expression syntax is incorrect.

CThe advice method should return a value.

DThe advice method lacks a parameter named 'result' to receive the returned value.

Step-by-Step Solution

Solution:

Step 1: Check returning attribute usage
The returning = "result" attribute indicates the advice method must have a parameter named result.
Step 2: Verify method signature
The advice method currently has no parameters, so it cannot access the returned value.
Final Answer:
The advice method lacks a parameter named 'result' to receive the returned value. correctly identifies the missing parameter as the error.
Quick Check:
Returning attribute requires matching method parameter [OK]

Quick Trick: Returning attribute requires matching method parameter [OK]

Common Mistakes:

Forgetting to add parameter matching the returning attribute
Assuming advice method must return a value
Miswriting pointcut expression syntax

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More Spring Boot Quizzes

What is wrong with the following @AfterReturning advice method?

Step 1: Check returning attribute usage

Step 2: Verify method signature

Final Answer:

Quick Check:

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