Spring cloud ribbon loadbalancer error - org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [org.springframework.cloud.netflix.ribbon.RibbonClientConfiguration]; nested exception is java.io.FileNotFoundException: class path resource [org/springframework/cloud/commons/httpclient/HttpClientConfiguration$OkHttpClientConfiguration.class] cannot be opened because it does not exist

[Siva-Learning]

I am facing an issue with client loadbalancing. please assist on this.

Maven dependencies:
spring boot: 2.7.8
spring cloud: 2021.0.5
spring.cloud.sleuth: 3.1.3
org.apache.httpcomponents:httpclient : 4.5.8
spring-cloud-starter-netflix-ribbon: 2.2.10.RELEASE

Ribbon config:

account-services-cluster:
ribbon:
listOfServers: localhost:8000
MaxAutoRetriesNextServer: 1
eureka: false
OkToRetryOnAllOperations: true
MaxAutoRetries: 1
MaxAutoRetriesNextServer: 1
ServerListRefreshInterval: 180000
ConnectTimeout: 30000
ReadTimeout: 30000

Exception Trace:

org.springframework.beans.factory.BeanDefinitionStoreException: Failed to process import candidates for configuration class [org.springframework.cloud.netflix.ribbon.RibbonClientConfiguration]; nested exception is java.io.FileNotFoundException: class path resource [org/springframework/cloud/commons/httpclient/HttpClientConfiguration$OkHttpClientConfiguration.class] cannot be opened because it does not exist
at org.springframework.context.annotation.ConfigurationClassParser.processImports(ConfigurationClassParser.java:612)
at org.springframework.context.annotation.ConfigurationClassParser.doProcessConfigurationClass(ConfigurationClassParser.java:310)
at org.springframework.context.annotation.ConfigurationClassParser.processConfigurationClass(ConfigurationClassParser.java:249)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:206)
at org.springframework.context.annotation.ConfigurationClassParser.parse(ConfigurationClassParser.java:174)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.processConfigBeanDefinitions(ConfigurationClassPostProcessor.java:331)
at org.springframework.context.annotation.ConfigurationClassPostProcessor.postProcessBeanDefinitionRegistry(ConfigurationClassPostProcessor.java:247)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanDefinitionRegistryPostProcessors(PostProcessorRegistrationDelegate.java:311)
at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:112)
at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:756)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:572)
at org.springframework.cloud.context.named.NamedContextFactory.createContext(NamedContextFactory.java:155)
at org.springframework.cloud.context.named.NamedContextFactory.getContext(NamedContextFactory.java:108)
at org.springframework.cloud.netflix.ribbon.SpringClientFactory.getContext(SpringClientFactory.java:131)
at org.springframework.cloud.context.named.NamedContextFactory.getInstance(NamedContextFactory.java:164)
at org.springframework.cloud.netflix.ribbon.SpringClientFactory.getInstance(SpringClientFactory.java:121)
at org.springframework.cloud.netflix.ribbon.SpringClientFactory.getLoadBalancerContext(SpringClientFactory.java:85)
at org.springframework.cloud.netflix.ribbon.RibbonLoadBalancedRetryFactory.createRetryPolicy(RibbonLoadBalancedRetryFactory.java:40)
at org.springframework.cloud.client.loadbalancer.RetryLoadBalancerInterceptor.intercept(RetryLoadBalancerInterceptor.java:89)
at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:93)
at org.springframework.cloud.sleuth.instrument.web.mvc.TracingClientHttpRequestInterceptor.intercept(TracingClientHttpRequestInterceptor.java:69)
at org.springframework.cloud.sleuth.instrument.web.client.LazyTraceClientHttpRequestInterceptor.intercept(LazyTraceClientHttpRequestInterceptor.java:51)
at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:93)
at org.springframework.http.client.InterceptingClientHttpRequest.executeInternal(InterceptingClientHttpRequest.java:77)
at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48)
at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:66)
at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:782)
at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:717)
at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:608)

[OlgaMaciaszek]

Hello @Siva-Learning.
Please learn how to properly format code and logs.

Spring Cloud Netflix Ribbon has been out of support for many years now. We suggest using Spring Cloud LoadBalancer instead.