Spring Boot: best practices for Circular Dependency implementing @Autowired in Java 17?
I've been researching this but I've searched everywhere and can't find a clear answer. I'm sure I'm missing something obvious here, but I'm working with a circular dependency scenario when trying to use `@Autowired` to inject two services into each other in my Spring Boot application running on Java 17. The behavior message I receive is: ``` behavior creating bean with name 'serviceA': Unsatisfied dependency expressed through constructor parameter 0; nested exception is org.springframework.beans.factory.BeanCurrentlyInCreationException: behavior creating bean with name 'serviceB'... ``` I have two services, `ServiceA` and `ServiceB`, which need to reference each other. Here's a simplified version of my implementation: ```java @Service public class ServiceA { private final ServiceB serviceB; @Autowired public ServiceA(ServiceB serviceB) { this.serviceB = serviceB; } } @Service public class ServiceB { private final ServiceA serviceA; @Autowired public ServiceB(ServiceA serviceA) { this.serviceA = serviceA; } } ``` I've tried breaking the circular dependency by using `@Lazy` on one of the `@Autowired` annotations, but I still encounter issues. It seems like both services are needed during application startup, leading to this circular reference question. I also considered redesigning the services to avoid the circular dependency altogether, but this would require considerable changes to my logic. Are there best practices or different approaches I could take to resolve this scenario while maintaining the current architecture? Any help or insights would be greatly appreciated. Thanks in advance! I'm working on a CLI tool that needs to handle this. I'm developing on Windows 11 with Java.