Which of the following is a common mistake that prevents @Async methods from running asynchronously?

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Spring Boot - Async Processing

Which of the following is a common mistake that prevents @Async methods from running asynchronously?

AUsing @Async on interface methods only.

BAnnotating the class with @Async instead of methods.

CReturning a Future from the async method.

DNot enabling async support with @EnableAsync.

Step-by-Step Solution

Solution:

Step 1: Confirm async support is enabled
@EnableAsync must be present to activate async processing.
Step 2: Review other options
@Async on interface methods can work; returning Future is valid; class-level @Async is allowed but method-level is clearer.
Final Answer:
Not enabling async support with @EnableAsync. -> Option D
Quick Check:
Missing @EnableAsync disables async processing [OK]

Quick Trick: Always add @EnableAsync to activate async support [OK]

Common Mistakes:

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