[Solved] Identify the error in the following Spring Boot configuration that prevents caching from working:@Configuration public class CacheConfig { @Bean public CacheManager cacheManager() { return new... | Spring Boot

Spring Boot - Caching

Identify the error in the following Spring Boot configuration that prevents caching from working:

@Configuration
public class CacheConfig {
  @Bean
  public CacheManager cacheManager() {
    return new ConcurrentMapCacheManager("items");
  }
}

ACache name "items" is invalid

BMissing <code>@EnableCaching</code> annotation on configuration class

CCacheManager bean should return null

DCacheManager must be annotated with <code>@Service</code>

Step-by-Step Solution

Solution:

Step 1: Check caching activation
Defining a CacheManager bean is not enough; caching must be enabled with @EnableCaching.
Step 2: Verify other options
CacheManager returning null or invalid cache names are incorrect; @Service is unrelated here.
Final Answer:
Missing @EnableCaching annotation on configuration class -> Option B
Quick Check:
Enable caching with @EnableCaching [OK]

Quick Trick: Always add @EnableCaching to activate caching [OK]

Common Mistakes:

Master "Caching" in Spring Boot

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