springboot @FeignClient bug using fallback;

spring boot 2.2 jdk 13

@FeignClient(contextId = "sp-producer-hystrix",name="SPRINGCLOUD-PRODUCER/producer",fallback= FeignHystrixFallback.class)
public interface CusFeignHystrix extends CustomFeignHystrix {
}

@RequestMapping("/feignHystrix")
public interface CustomFeignHystrix {
 @GetMapping("/usl")
   public List<User> usl();
}

@Component
public class FeignHystrixFallback implements CusFeignHystrix {
    protected Logger logger = LoggerFactory.getLogger(getClass());
    @Override
    public List<User> usl() {
        logger.error("defeat--------------------------");
        User temp = new User();
        temp.setName("defeat+++++++++++++++++");
        return List.of(temp);
    }
}

---

Error at startup

Ambiguous mapping. Cannot map 'com.ciel.springcloudfathernewconsumer0.service.CusFeignHystrix' method 
com.ciel.springcloudfathernewconsumer0.service.CusFeignHystrix#usl()
to {GET /feignHystrix/usl}: There is already 'feignHystrixFallback' bean method

I had to remove @Component from FeignHystrixFallback

But it happened

   No fallback instance of type class com.ciel.springcloudfathernewconsumer0.fallback.FeignHystrixFallback found for feign client sp-producer-hystrix

I finally solved it like this ; Overriding @GetMapping ("/usl") with @GetMapping ("/ gg")

@Component
public class FeignHystrixFallback implements CusFeignHystrix {
    protected Logger logger = LoggerFactory.getLogger(getClass());
    @Override
    @GetMapping("/gg")
    public List<User> usl() {
        logger.error("defeat--------------");
        User temp = new User();
        temp.setName("defeat+++++++++++++++++");
        return List.of(temp);
    }
}

Comment From: cielswift

I think this is a bug

Comment From: mbhave

Spring Cloud Feign is a separate project with its own issue tracker. If you believe you've found a bug, please open an issue there with a minimal sample that the team can run to reproduce the issue.

Comment From: cielswift

But this is only a problem when integrating with springboot

Comment From: philwebb

@cielswift You'll still need to raise the issue with Spring Cloud Feign first. We don't have any code to support Feign in Spring Boot. I'd suggest attaching a sample application to your issue is possible.