java.lang.ClassCastException: com.netflix.loadbalancer.Server cannot be cast to com.netflix.niws.loadbalancer.DiscoveryEnabledServer

[h3xstream]

I'm trying to test a basic setup of Zuul and I can't make the sample server work..

2021-11-16 00:45:39,882 WARN  com.netflix.zuul.filters.endpoint.ProxyEndpoint [Salamander-ClientToZuulWorker-0] FAILURE_LOCAL, origin = OriginName{niwsClientName='api', target='api', authority='api'}, origin channel info = 
java.lang.ClassCastException: com.netflix.loadbalancer.Server cannot be cast to com.netflix.niws.loadbalancer.DiscoveryEnabledServer
	at com.netflix.zuul.discovery.DynamicServerResolver.resolve(DynamicServerResolver.java:56) ~[zuul-discovery-2.3.1-SNAPSHOT.jar:2.3.1-SNAPSHOT]
	at com.netflix.zuul.discovery.DynamicServerResolver.resolve(DynamicServerResolver.java:42) ~[zuul-discovery-2.3.1-SNAPSHOT.jar:2.3.1-SNAPSHOT]
	at com.netflix.zuul.netty.connectionpool.DefaultClientChannelManager.acquire(DefaultClientChannelManager.java:328) ~[zuul-core-2.3.1-SNAPSHOT.jar:2.3.1-SNAPSHOT]

I'm probably missing something for my configuration.

My configuration:

zuul.server.port.main=9500

### Load balancing backends without Eureka
eureka.shouldFetchRegistry=false
eureka.validateInstanceId=false
eureka.shouldUseDns=false

api.ribbon.listOfServers=127.0.0.1:9090
api.ribbon.client.NIWSServerListClassName=com.netflix.loadbalancer.ConfigurationBasedServerList
api.ribbon.readTimeout=10000
routes.api.path=/api/**

[argha-c]

Please try the workaround suggested here