[Solved] Given the following advice:@AfterReturning(pointcut = "execution(* service.*.getData(..... }What will be printed if getData() returns "Hello"? | Spring Boot

Spring Boot - Aspect-Oriented Programming

Given the following advice:

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

What will be printed if getData() returns "Hello"?

AResult: Hello

BResult: null

CNo output printed

DCompilation error

Step-by-Step Solution

Solution:

Step 1: Understand advice execution
@AfterReturning runs only if getData() returns successfully.
Step 2: Output behavior
The advice prints the returned value prefixed by "Result: ". Since return is "Hello", it prints "Result: Hello".
Final Answer:
Result: Hello -> Option A
Quick Check:
Return value passed to advice and printed [OK]

Quick Trick: Prints returned value only on successful return [OK]

Common Mistakes:

Expecting output on exceptions
Thinking advice runs before method
Assuming null is printed if return is non-null

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Given the following advice:

Step 1: Understand advice execution

Step 2: Output behavior

Final Answer:

Quick Check:

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