NoClassDefFoundError: org/springframework/cloud/openfeign/ribbon/LoadBalancerFeignClient when using spring-cloud-dependencies:2020.0.0

Using implementation "io.opentracing.contrib:opentracing-spring-jaeger-cloud-starter:3.2.2" I upgraded to the new mavenBom "org.springframework.cloud:spring-cloud-dependencies:2020.0.0"

spring-cloud ‘Hoxton.SR9’ worked correctly

Since then I get the following error on startup. It seems ribbon was removed from spring cloud in 2020 but is required by jaeger (but not included) with spring-jaeger

Removing spring-jaeger and my application works correctly with spring-cloud 2020

It looks like simply updating the cloud version in java-spring-cloud is not so easy, is a migration planned?

Caused by:
  java.lang.NoClassDefFoundError: org/springframework/cloud/openfeign/ribbon/LoadBalancerFeignClient
      at io.opentracing.contrib.spring.cloud.feign.TracedFeignBeanFactory.from(TracedFeignBeanFactory.java:40)
      at io.opentracing.contrib.spring.cloud.feign.TraceFeignContext.addTracingClient(TraceFeignContext.java:64)
      at io.opentracing.contrib.spring.cloud.feign.TraceFeignContext.getInstance(TraceFeignContext.java:46)
      at org.springframework.cloud.openfeign.FeignClientFactoryBean.get(FeignClientFactoryBean.java:272)
      at org.springframework.cloud.openfeign.FeignClientFactoryBean.feign(FeignClientFactoryBean.java:99)
      at org.springframework.cloud.openfeign.FeignClientFactoryBean.getTarget(FeignClientFactoryBean.java:325)
      at org.springframework.cloud.openfeign.FeignClientFactoryBean.getObject(FeignClientFactoryBean.java:315)
      at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:169)
     ... 149 more

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[rajurathi1112]

fyi , after adding below in property file , we are not seeing this error . hope this helps …

opentracing.spring.cloud.feign.enabled=false

[AhHa45]

instead of this hacky workaround I’d simply exclude opentracing-spring-cloud-feign-starter from your build. This solved the issue for me.