[Solved] Consider this Spring Boot setup:@Configuration public class AsyncConfig { @Async public void runAsync() { System.out.println("Running async"); } }What is the main problem with this code? | Spring Boot

Spring Boot - Async Processing

Consider this Spring Boot setup:

@Configuration
public class AsyncConfig {
  @Async
  public void runAsync() {
    System.out.println("Running async");
  }
}

What is the main problem with this code?

AMissing <code>@EnableAsync</code> annotation to activate async support

BMethods annotated with <code>@Async</code> must return a value

C<code>@Async</code> cannot be used inside <code>@Configuration</code> classes

DThe method must be static to run asynchronously

Step-by-Step Solution

Solution:

Step 1: Check if async support is enabled
Without @EnableAsync on a configuration or main class, Spring will not run @Async methods asynchronously.
Step 2: Validate other options
@Async methods can be void, can be in any Spring bean, and do not need to be static.
Final Answer:
Missing @EnableAsync annotation to activate async support -> Option A
Quick Check:
Enable async missing = async won't run [OK]

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

Common Mistakes:

Master "Async Processing" in Spring Boot

9 interactive learning modes - each teaches the same concept differently

More Spring Boot Quizzes

Consider this Spring Boot setup: