* Test to verify sub level client error
Error is described in https://github.com/spring-cloud/spring-cloud-openfeign/issues/331
Application fails when one Feign client is `org.TopClient` and second is in subpackage: `org.sub.SubClient`
The error reason is that `SubClient` is registered twice
* Fix for @EnableFeignClients(clients) scans classes in nested packages twice
https://github.com/spring-cloud/spring-cloud-openfeign/issues/331
(cherry picked from commit fe62b0db90)
# Conflicts:
# spring-cloud-openfeign-core/src/main/java/org/springframework/cloud/openfeign/FeignClientsRegistrar.java
* delete unused code
(cherry picked from commit 4df865d1d6)
* add file header
* Apply review
Co-authored-by: michal <michal@michal-desktop>
Michal Domagala
