public String toString(){
        StringBuilder sb = new StringBuilder("DiscoveryEnabledNIWSServerList:");
        sb.append("; clientName:").append(clientName);
        sb.append("; Effective vipAddresses:").append(vipAddresses);
        sb.append("; isSecure:").append(isSecure);
        sb.append("; datacenter:").append(datacenter);
        return sb.toString();
    }
@deprecated
use {@link #DiscoveryEnabledNIWSServerList(com.netflix.client.config.IClientConfig, javax.inject.Provider)}
@param clientConfig
ribbon-eureka/src/main/java/com/netflix/niws/loadbalancer/DiscoveryEnabledNIWSServerList.java