[Solved] Why does Spring use CGLIB proxies for classes annotated with @Configuration? — Ans: To ensure that @Bean methods return singleton instances by intercepting method... | Spring Boot

Spring Boot - Spring Annotations

Why does Spring use CGLIB proxies for classes annotated with @Configuration?

ATo enable automatic scanning of all packages.

BTo convert configuration classes into XML files.

CTo ensure that @Bean methods return singleton instances by intercepting method calls.

DTo disable proxying of beans.

Step-by-Step Solution

Solution:

Step 1: Understand proxying in @Configuration
Spring uses CGLIB proxies to intercept calls to @Bean methods to return the same singleton bean instance.
Step 2: Purpose of proxying
This prevents creating new instances on each method call inside the configuration class.
Final Answer:
To ensure that @Bean methods return singleton instances by intercepting method calls. -> Option C
Quick Check:
@Configuration uses proxies to enforce singleton beans [OK]

Quick Trick: CGLIB proxies keep @Bean singletons consistent [OK]

Common Mistakes:

Master "Spring Annotations" in Spring Boot

9 interactive learning modes - each teaches the same concept differently

More Spring Boot Quizzes

Why does Spring use CGLIB proxies for classes annotated with @Configuration?