Break circular references which disabled by default since spring boot 2.6

[quaff]

***************************
APPLICATION FAILED TO START
***************************

Description:

The dependencies of some of the beans in the application context form a cycle:

┌─────┐
|  requestMappingHandlerMapping defined in class path resource [org/springframework/boot/autoconfigure/web/servlet/WebMvcAutoConfiguration$EnableWebMvcConfiguration.class]
↑     ↓
|  openApiResource defined in class path resource [org/springdoc/webmvc/core/SpringDocWebMvcConfiguration.class]
└─────┘


Action:

Relying upon circular references is discouraged and they are prohibited by default. Update your application to remove the dependency cycle between beans. As a last resort, it may be possible to break the cycle automatically by setting spring.main.allow-circular-references to true.

[thodorispa]

I have this error too. I put in application.properties :
spring.main.allow-circular-references=true
but it didn't work

[quaff]

I have this error too. I put in application.properties : spring.main.allow-circular-references=true but it didn't work

spring.main.allow-circular-references: true works for me.

[abdimajidov]

worked on me too

spring.main.allow-circular-references: true

[bnasslahsen]

Guys, would be great if you provide a minimal reproducible sample or directly propose a PR.
We will release by the EOM and would be great to prevent this issue without the additionnal property.

[abdimajidov]

putting @lazy on the constructor is also a good option

[bnasslahsen]

This ticket will be closed, as no one has provided a Minimal, Reproducible Example - with HelloController.
It can be reopened, if the relevant information is provided.

[quaff]

SpringDocWebMvcConfiguration

Do you have customized RequestMappingHandlerMapping like this?

@Component
public class DefaultWebMvcRegistrations implements WebMvcRegistrations {

	@Override
	public RequestMappingHandlerMapping getRequestMappingHandlerMapping() {
		return new MyRequestMappingHandlerMapping();
	}

}

@thodorispa @abdimajidov

[quaff]

@bnasslahsen Here is example.zip
In customized DefaultRequestMappingHandlerMapping

	@Override
	protected void detectHandlerMethods(Object handler) {
		Object handlerObject = (handler instanceof String ? obtainApplicationContext().getBean((String) handler)
				: handler); // getBean will cause circular references
		handlerHolder.set(handlerObject);
		super.detectHandlerMethods(handler);
		handlerHolder.remove();
	}

[bnasslahsen]

@quaff,

Thank you for providing a reproducible sample.
This should be now fixed with the latest SNAPSHOT.
You can give it a try and let us know.

[quaff]

@quaff,

Thank you for providing a reproducible sample. This should be now fixed with the latest SNAPSHOT. You can give it a try and let us know.

It works now, thanks.

[KahugiaEriq]

I placed the spring.main.allow-circular-references: true and it worked for me too.