Minor changes (#2681)

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/feign/FeignClientsRegistrar.java

@@ -27,7 +27,6 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
-import org.springframework.beans.factory.BeanClassLoaderAware;
 import org.springframework.beans.factory.annotation.AnnotatedBeanDefinition;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.beans.factory.config.BeanDefinitionHolder;

spring-cloud-netflix-core/src/main/java/org/springframework/cloud/netflix/hystrix/HystrixHealthIndicator.java

@@ -56,7 +56,7 @@ public class HystrixHealthIndicator extends AbstractHealthIndicator {
 		// If there is at least one open circuit report OUT_OF_SERVICE adding the command
 		// group
 		// and key name
-		if (openCircuitBreakers.size() > 0) {
+		if (!openCircuitBreakers.isEmpty()) {
 			builder.status(CIRCUIT_OPEN).withDetail("openCircuitBreakers",
 					openCircuitBreakers);
 		}

spring-cloud-netflix-ribbon/src/test/java/org/springframework/cloud/netflix/ribbon/RibbonClientHttpRequestFactoryTests.java

@@ -16,7 +16,6 @@
 
 package org.springframework.cloud.netflix.ribbon;
 
-import java.lang.reflect.Field;
 import java.net.URI;
 import org.junit.Rule;
 import org.junit.Test;
@@ -32,11 +31,9 @@ import org.springframework.context.annotation.Configuration;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.RequestEntity;
 import org.springframework.http.ResponseEntity;
-import org.springframework.http.client.AbstractClientHttpRequestFactoryWrapper;
 import org.springframework.http.client.ClientHttpRequestFactory;
 import org.springframework.test.annotation.DirtiesContext;
 import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
-import org.springframework.util.ReflectionUtils;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestHeader;

spring-cloud-netflix-ribbon/src/test/java/org/springframework/cloud/netflix/ribbon/RibbonLoadBalancerClientTests.java

@@ -30,7 +30,6 @@ import org.springframework.cloud.client.ServiceInstance;
 import org.springframework.cloud.client.loadbalancer.LoadBalancerRequest;
 import org.springframework.cloud.netflix.ribbon.RibbonLoadBalancerClient.RibbonServer;
 import org.springframework.web.util.DefaultUriBuilderFactory;
-import org.springframework.web.util.DefaultUriTemplateHandler;
 
 import com.netflix.client.config.CommonClientConfigKey;
 import com.netflix.client.config.IClientConfig;