fix(nacos): Repair to create a large number of Nacos*Service problems

README-zh.md

@@ -127,3 +127,7 @@ spring-cloud-alibaba@googlegroups.com，欢迎通过此邮件列表讨论与 spr
 ![DingQR](https://img.alicdn.com/tfs/TB1zrRie4v1gK0jSZFFXXb0sXXa-7862-3570.png)
 
 如图片有问题，访问 https://img.alicdn.com/tfs/TB1zrRie4v1gK0jSZFFXXb0sXXa-7862-3570.png
+
+## 社区相关开源
+
+**[Nepxion Discovery](https://github.com/Nepxion/Discovery)**：一款集成Spring Cloud Alibaba、Nacos、Sentinel等阿里巴巴中间件，实现网关和服务的灰度发布、路由、权重、限流、熔断、降级、隔离、监控、追踪等功能的微服务开源解决。使用指南 请参考 **[Nepxion Discovery Guide](https://github.com/Nepxion/DiscoveryGuide)**。

eclipse/checkstyle-suppressions.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0"?>
+<!DOCTYPE suppressions PUBLIC
+        "-//Checkstyle//DTD SuppressionFilter Configuration 1.2//EN"
+        "https://checkstyle.org/dtds/suppressions_1_2.dtd">
+<suppressions>
+    <suppress files="[\\/]spring-cloud-alibaba-examples[\\/]" checks="HideUtilityClassConstructorCheck" />
+    <suppress files=".*" checks="LineLength" />
+</suppressions>

pom.xml

@@ -282,6 +282,24 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-checkstyle-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <id>checkstyle-validation</id>
+                        <phase>validate</phase>
+                        <goals>
+                            <goal>check</goal>
+                        </goals>
+                        <configuration>
+                            <!-- Checkstyle rules inherited from spring-cloud-build -->
+                            <suppressionsLocation>eclipse/checkstyle-suppressions.xml</suppressionsLocation>
+                            <includeTestSourceDirectory>true</includeTestSourceDirectory>
+                            <consoleOutput>true</consoleOutput>
+                            <failsOnError>true</failsOnError>
+                            <failOnViolation>true</failOnViolation>
+                            <violationSeverity>warning</violationSeverity>
+                        </configuration>
+                    </execution>
+                </executions>
             </plugin>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>

spring-cloud-alibaba-dependencies/pom.xml

@@ -21,7 +21,7 @@
         <sentinel.version>1.6.3</sentinel.version>
         <oss.version>3.1.0</oss.version>
         <seata.version>0.9.0</seata.version>
-        <nacos.client.version>1.1.1</nacos.client.version>
+        <nacos.client.version>1.1.4</nacos.client.version>
         <nacos.config.version>0.8.0</nacos.config.version>
         <acm.version>1.0.9</acm.version>
         <ans.version>1.0.1</ans.version>
@@ -178,11 +178,6 @@
                 <artifactId>sentinel-reactor-adapter</artifactId>
                 <version>${sentinel.version}</version>
             </dependency>
-            <dependency>
-                <groupId>com.alibaba.cloud</groupId>
-                <artifactId>sentinel-dubbo-api</artifactId>
-                <version>${project.version}</version>
-            </dependency>
             <dependency>
                 <groupId>com.alibaba.csp</groupId>
                 <artifactId>sentinel-cluster-server-default</artifactId>
@@ -307,6 +302,11 @@
                 <artifactId>spring-cloud-starter-alibaba-sentinel</artifactId>
                 <version>${project.version}</version>
             </dependency>
+            <dependency>
+                <groupId>com.alibaba.cloud</groupId>
+                <artifactId>spring-cloud-circuitbreaker-sentinel</artifactId>
+                <version>${project.version}</version>
+            </dependency>
             <dependency>
                 <groupId>com.alibaba.cloud</groupId>
                 <artifactId>spring-cloud-starter-alicloud-oss</artifactId>

spring-cloud-alibaba-dubbo/src/main/java/com/alibaba/cloud/dubbo/autoconfigure/DubboServiceDiscoveryAutoConfiguration.java

@@ -505,6 +505,8 @@ public class DubboServiceDiscoveryAutoConfiguration {
 
 		private final NamingService namingService;
 
+		private final NacosDiscoveryProperties nacosDiscoveryProperties;
+
 		/**
 		 * the set of services is listening.
 		 */
@@ -512,6 +514,7 @@ public class DubboServiceDiscoveryAutoConfiguration {
 
 		NacosConfiguration(NacosDiscoveryProperties nacosDiscoveryProperties) {
 			this.namingService = nacosDiscoveryProperties.namingServiceInstance();
+			this.nacosDiscoveryProperties = nacosDiscoveryProperties;
 			this.listeningServices = new ConcurrentSkipListSet<>();
 		}
 
@@ -536,7 +539,8 @@ public class DubboServiceDiscoveryAutoConfiguration {
 		private void subscribeEventListener(String serviceName) {
 			if (listeningServices.add(serviceName)) {
 				try {
-					namingService.subscribe(serviceName, event -> {
+					String group = nacosDiscoveryProperties.getGroup();
+					namingService.subscribe(serviceName, group, event -> {
 						if (event instanceof NamingEvent) {
 							NamingEvent namingEvent = (NamingEvent) event;
 							List<ServiceInstance> serviceInstances = hostToServiceInstanceList(

spring-cloud-alibaba-dubbo/src/main/java/com/alibaba/cloud/dubbo/metadata/repository/DubboServiceMetadataRepository.java

@@ -390,11 +390,9 @@ public class DubboServiceMetadataRepository
 			return emptyList();
 		}
 
-		return hasText(protocol)
-				? urls.stream()
-						.filter(url -> url.getProtocol().equalsIgnoreCase(protocol))
-						.collect(Collectors.toList())
-				: unmodifiableList(urls);
+		return hasText(protocol) ? urls.stream()
+				.filter(url -> url.getProtocol().equalsIgnoreCase(protocol))
+				.collect(Collectors.toList()) : unmodifiableList(urls);
 	}
 
 	/**

spring-cloud-alibaba-dubbo/src/test/java/com/alibaba/cloud/dubbo/autoconfigure/DubboServiceRegistrationAutoConfigurationTest.java

@@ -19,7 +19,7 @@ package com.alibaba.cloud.dubbo.autoconfigure;
 import org.springframework.boot.test.context.SpringBootTest;
 
 /**
- * {@link DubboServiceRegistrationAutoConfiguration} Test
+ * {@link DubboServiceRegistrationAutoConfiguration} Test.
  *
  * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
  */

spring-cloud-alibaba-dubbo/src/test/java/com/alibaba/cloud/dubbo/http/matcher/AbstractMediaTypeExpressionTest.java

@@ -26,7 +26,7 @@ import org.springframework.core.ResolvableType;
 import org.springframework.http.MediaType;
 
 /**
- * {@link AbstractMediaTypeExpression} Test
+ * {@link AbstractMediaTypeExpression} Test.
  *
  * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
  */

spring-cloud-alibaba-examples/oss-example/src/main/java/com/alibaba/cloud/examples/OssApplication.java

@@ -35,6 +35,9 @@ import org.springframework.context.annotation.Bean;
 @SpringBootApplication
 public class OssApplication {
 
+	/**
+	 * Bucket Name of OSS Example.
+	 */
 	public static final String BUCKET_NAME = "spring-cloud-alibaba-test";
 
 	public static void main(String[] args) throws URISyntaxException {

spring-cloud-alibaba-examples/seata-example/business-service/src/main/java/com/alibaba/cloud/examples/Order.java

@@ -20,14 +20,29 @@ import java.io.Serializable;
 
 public class Order implements Serializable {
 
+	/**
+	 * order id.
+	 */
 	public long id;
 
+	/**
+	 * user id.
+	 */
 	public String userId;
 
+	/**
+	 * commodity code.
+	 */
 	public String commodityCode;
 
+	/**
+	 * count.
+	 */
 	public int count;
 
+	/**
+	 * money.
+	 */
 	public int money;
 
 	@Override

spring-cloud-alibaba-examples/seata-example/order-service/src/main/java/com/alibaba/cloud/examples/Order.java

@@ -20,14 +20,29 @@ import java.io.Serializable;
 
 public class Order implements Serializable {
 
+	/**
+	 * id.
+	 */
 	public long id;
 
+	/**
+	 * user id.
+	 */
 	public String userId;
 
+	/**
+	 * commodity code.
+	 */
 	public String commodityCode;
 
+	/**
+	 * count.
+	 */
 	public int count;
 
+	/**
+	 * money.
+	 */
 	public int money;
 
 	@Override

spring-cloud-alibaba-examples/sentinel-example/sentinel-core-example/src/main/java/com/alibaba/cloud/examples/ExceptionUtil.java

@@ -25,7 +25,11 @@ import org.springframework.http.client.ClientHttpRequestExecution;
 /**
  * @author fangjian
  */
-public class ExceptionUtil {
+public final class ExceptionUtil {
+
+	private ExceptionUtil() {
+
+	}
 
 	public static SentinelClientHttpResponse handleException(HttpRequest request,
 			byte[] body, ClientHttpRequestExecution execution, BlockException ex) {

spring-cloud-alibaba-examples/sentinel-example/sentinel-dubbo-example/sentinel-dubbo-consumer-example/pom.xml

@@ -25,6 +25,7 @@
         <dependency>
             <groupId>com.alibaba.cloud</groupId>
             <artifactId>sentinel-dubbo-api</artifactId>
+            <version>${project.version}</version>
         </dependency>
 
         <dependency>

spring-cloud-alibaba-examples/sentinel-example/sentinel-dubbo-example/sentinel-dubbo-provider-example/pom.xml

@@ -25,6 +25,7 @@
         <dependency>
             <groupId>com.alibaba.cloud</groupId>
             <artifactId>sentinel-dubbo-api</artifactId>
+            <version>${project.version}</version>
         </dependency>
 
         <dependency>
@@ -41,7 +42,6 @@
             <groupId>org.apache.dubbo</groupId>
             <artifactId>dubbo</artifactId>
         </dependency>
-
     </dependencies>
 
     <build>

spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/fallback/EchoServiceFallback.java

@@ -33,7 +33,7 @@ public class EchoServiceFallback implements EchoService {
 	}
 
 	/**
-	 * 调用服务提供方的输出接口
+	 * 调用服务提供方的输出接口.
 	 * @param str 用户输入
 	 * @return
 	 */

spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/service/EchoService.java

@@ -33,9 +33,9 @@ import org.springframework.web.bind.annotation.PathVariable;
 public interface EchoService {
 
 	/**
-	 * 调用服务提供方的输出接口
+	 * 调用服务提供方的输出接口.
 	 * @param str 用户输入
-	 * @return
+	 * @return echo result
 	 */
 	@GetMapping("/echo/{str}")
 	String echo(@PathVariable("str") String str);

spring-cloud-alibaba-examples/spring-cloud-bus-rocketmq-example/src/main/java/com/alibaba/cloud/examples/rocketmq/RocketMQBusApplication.java

@@ -65,7 +65,7 @@ public class RocketMQBusApplication {
 	private ObjectMapper objectMapper;
 
 	/**
-	 * Publish the {@link UserRemoteApplicationEvent}
+	 * Publish the {@link UserRemoteApplicationEvent}.
 	 * @param name the user name
 	 * @param destination the destination
 	 * @return If published
@@ -82,7 +82,7 @@ public class RocketMQBusApplication {
 	}
 
 	/**
-	 * Listener on the {@link UserRemoteApplicationEvent}
+	 * Listener on the {@link UserRemoteApplicationEvent}.
 	 * @param event {@link UserRemoteApplicationEvent}
 	 */
 	@EventListener

spring-cloud-alibaba-nacos-config-server/src/test/java/com/alibaba/cloud/nacos/config/server/bootstrap/NacosConfigServerBootstrap.java

@@ -23,7 +23,7 @@ import org.springframework.cloud.config.server.EnableConfigServer;
 import org.springframework.context.annotation.Bean;
 
 /**
- * Nacos Config Server Bootstrap
+ * Nacos Config Server Bootstrap.
  *
  * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
  * @since 0.2.0

spring-cloud-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/NacosConfigBootstrapConfiguration.java

@@ -37,7 +37,8 @@ public class NacosConfigBootstrapConfiguration {
 	}
 
 	@Bean
-	public NacosPropertySourceLocator nacosPropertySourceLocator(NacosConfigProperties nacosConfigProperties) {
+	public NacosPropertySourceLocator nacosPropertySourceLocator(
+			NacosConfigProperties nacosConfigProperties) {
 		return new NacosPropertySourceLocator(nacosConfigProperties);
 	}
 

spring-cloud-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/NacosConfigProperties.java

@@ -363,8 +363,10 @@ public class NacosConfigProperties {
 	public ConfigService configServiceInstance() {
 		if (null == configService) {
 			try {
-				configService = NacosFactory.createConfigService(getConfigServiceProperties());
-			} catch (NacosException e) {
+				configService = NacosFactory
+						.createConfigService(getConfigServiceProperties());
+			}
+			catch (NacosException e) {
 				log.error("create naming service error!properties={},e=,", this, e);
 				return null;
 			}

spring-cloud-alibaba-nacos-config/src/main/java/com/alibaba/cloud/nacos/endpoint/NacosConfigEndpointAutoConfiguration.java

@@ -51,7 +51,8 @@ public class NacosConfigEndpointAutoConfiguration {
 
 	@Bean
 	public NacosConfigHealthIndicator nacosConfigHealthIndicator() {
-		return new NacosConfigHealthIndicator(nacosConfigProperties.configServiceInstance());
+		return new NacosConfigHealthIndicator(
+				nacosConfigProperties.configServiceInstance());
 	}
 
 }

spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/registry/NacosServiceRegistry.java

@@ -120,8 +120,8 @@ public class NacosServiceRegistry implements ServiceRegistry<Registration> {
 		}
 
 		try {
-			nacosDiscoveryProperties.namingMaintainServiceInstance().updateInstance(serviceId,
-					instance);
+			nacosDiscoveryProperties.namingMaintainServiceInstance()
+					.updateInstance(serviceId, instance);
 		}
 		catch (Exception e) {
 			throw new RuntimeException("update nacos instance status fail", e);

spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/registry/NacosServiceRegistryAutoConfiguration.java

@@ -46,16 +46,17 @@ import org.springframework.context.annotation.Configuration;
 public class NacosServiceRegistryAutoConfiguration {
 
 	@Bean
-	public NacosServiceRegistry nacosServiceRegistry(NacosDiscoveryProperties nacosDiscoveryProperties) {
+	public NacosServiceRegistry nacosServiceRegistry(
+			NacosDiscoveryProperties nacosDiscoveryProperties) {
 		return new NacosServiceRegistry(nacosDiscoveryProperties);
 	}
 
 	@Bean
 	@ConditionalOnBean(AutoServiceRegistrationProperties.class)
-	public NacosRegistration nacosRegistration(NacosDiscoveryProperties nacosDiscoveryProperties,
+	public NacosRegistration nacosRegistration(
+			NacosDiscoveryProperties nacosDiscoveryProperties,
 			ApplicationContext context) {
-		return new NacosRegistration(nacosDiscoveryProperties,
-				context);
+		return new NacosRegistration(nacosDiscoveryProperties, context);
 	}
 
 	@Bean

spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/ribbon/NacosRibbonClientConfiguration.java

@@ -37,8 +37,7 @@ public class NacosRibbonClientConfiguration {
 	@ConditionalOnMissingBean
 	public ServerList<?> ribbonServerList(IClientConfig config,
 			NacosDiscoveryProperties nacosDiscoveryProperties) {
-		NacosServerList serverList = new NacosServerList(
-				nacosDiscoveryProperties);
+		NacosServerList serverList = new NacosServerList(nacosDiscoveryProperties);
 		serverList.initWithNiwsConfig(config);
 		return serverList;
 	}

spring-cloud-alibaba-nacos-discovery/src/main/java/com/alibaba/cloud/nacos/ribbon/NacosRule.java

@@ -54,7 +54,8 @@ public class NacosRule extends AbstractLoadBalancerRule {
 			DynamicServerListLoadBalancer loadBalancer = (DynamicServerListLoadBalancer) getLoadBalancer();
 			String name = loadBalancer.getName();
 
-			NamingService namingService = nacosDiscoveryProperties.namingServiceInstance();
+			NamingService namingService = nacosDiscoveryProperties
+					.namingServiceInstance();
 			List<Instance> instances = namingService.selectInstances(name, true);
 			if (CollectionUtils.isEmpty(instances)) {
 				LOGGER.warn("no instance in service {}", name);

spring-cloud-alibaba-nacos-discovery/src/test/java/com/alibaba/cloud/nacos/discovery/NacosServiceDiscoveryTest.java

@@ -68,7 +68,8 @@ public class NacosServiceDiscoveryTest {
 		when(namingService.selectInstances(eq(serviceName), eq("DEFAULT"), eq(true)))
 				.thenReturn(instances);
 
-		NacosServiceDiscovery serviceDiscovery = new NacosServiceDiscovery(nacosDiscoveryProperties);
+		NacosServiceDiscovery serviceDiscovery = new NacosServiceDiscovery(
+				nacosDiscoveryProperties);
 
 		List<ServiceInstance> serviceInstances = serviceDiscovery
 				.getInstances(serviceName);
@@ -106,7 +107,8 @@ public class NacosServiceDiscoveryTest {
 		when(namingService.getServicesOfServer(eq(1), eq(Integer.MAX_VALUE),
 				eq("DEFAULT"))).thenReturn(nacosServices);
 
-		NacosServiceDiscovery serviceDiscovery = new NacosServiceDiscovery(nacosDiscoveryProperties);
+		NacosServiceDiscovery serviceDiscovery = new NacosServiceDiscovery(
+				nacosDiscoveryProperties);
 
 		List<String> services = serviceDiscovery.getServices();
 

spring-cloud-alibaba-nacos-discovery/src/test/java/com/alibaba/cloud/nacos/registry/NacosAutoServiceRegistrationTests.java

@@ -176,13 +176,13 @@ public class NacosAutoServiceRegistrationTests {
 	}
 
 	private void checkoutEndpoint() throws Exception {
-		NacosDiscoveryEndpoint nacosDiscoveryEndpoint = new NacosDiscoveryEndpoint(properties);
+		NacosDiscoveryEndpoint nacosDiscoveryEndpoint = new NacosDiscoveryEndpoint(
+				properties);
 		Map<String, Object> map = nacosDiscoveryEndpoint.nacosDiscovery();
 
 		assertThat(properties).isEqualTo(map.get("NacosDiscoveryProperties"));
-		assertThat(
-				properties.namingServiceInstance().getSubscribeServices().toString())
-						.isEqualTo(map.get("subscribe").toString());
+		assertThat(properties.namingServiceInstance().getSubscribeServices().toString())
+				.isEqualTo(map.get("subscribe").toString());
 	}
 
 	@Configuration

spring-cloud-alibaba-nacos-discovery/src/test/java/com/alibaba/cloud/nacos/ribbon/NacosServerListTests.java

@@ -53,8 +53,7 @@ public class NacosServerListTests {
 		when(namingService.selectInstances(anyString(), eq("DEFAULT"), eq(true)))
 				.thenReturn(null);
 
-		NacosServerList serverList = new NacosServerList(
-				nacosDiscoveryProperties);
+		NacosServerList serverList = new NacosServerList(nacosDiscoveryProperties);
 		List<NacosServer> servers = serverList.getInitialListOfServers();
 		assertThat(servers).isEmpty();
 	}
@@ -80,8 +79,7 @@ public class NacosServerListTests {
 
 		IClientConfig clientConfig = mock(IClientConfig.class);
 		when(clientConfig.getClientName()).thenReturn("test-service");
-		NacosServerList serverList = new NacosServerList(
-				nacosDiscoveryProperties);
+		NacosServerList serverList = new NacosServerList(nacosDiscoveryProperties);
 		serverList.initWithNiwsConfig(clientConfig);
 		List<NacosServer> servers = serverList.getInitialListOfServers();
 		assertThat(servers).hasSize(1);
@@ -115,8 +113,7 @@ public class NacosServerListTests {
 
 		IClientConfig clientConfig = mock(IClientConfig.class);
 		when(clientConfig.getClientName()).thenReturn("test-service");
-		NacosServerList serverList = new NacosServerList(
-				nacosDiscoveryProperties);
+		NacosServerList serverList = new NacosServerList(nacosDiscoveryProperties);
 		serverList.initWithNiwsConfig(clientConfig);
 		List<NacosServer> servers = serverList.getInitialListOfServers();
 		assertThat(servers).hasSize(1);
@@ -154,8 +151,7 @@ public class NacosServerListTests {
 
 		IClientConfig clientConfig = mock(IClientConfig.class);
 		when(clientConfig.getClientName()).thenReturn("test-service");
-		NacosServerList serverList = new NacosServerList(
-				nacosDiscoveryProperties);
+		NacosServerList serverList = new NacosServerList(nacosDiscoveryProperties);
 		serverList.initWithNiwsConfig(clientConfig);
 
 		List<NacosServer> servers = serverList.getUpdatedListOfServers();

spring-cloud-alibaba-nacos-discovery/src/test/java/com/alibaba/cloud/nacos/test/NacosMockTest.java

@@ -24,7 +24,11 @@ import com.alibaba.nacos.api.naming.pojo.Instance;
 /**
  * @author xiaojing
  */
-public class NacosMockTest {
+public final class NacosMockTest {
+
+	private NacosMockTest() {
+
+	}
 
 	public static Instance serviceInstance(String serviceName, boolean isHealthy,
 			Map<String, String> metadata) {

spring-cloud-alibaba-seata/src/main/java/com/alibaba/cloud/seata/web/SeataHandlerInterceptorConfiguration.java

@@ -16,12 +16,14 @@
 
 package com.alibaba.cloud.seata.web;
 
+import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;
 
 /**
  * @author xiaojing
  */
+@ConditionalOnWebApplication
 public class SeataHandlerInterceptorConfiguration implements WebMvcConfigurer {
 
 	@Override

spring-cloud-alibaba-sentinel/pom.xml

@@ -30,6 +30,11 @@
             <optional>true</optional>
         </dependency>
 
+        <dependency>
+            <groupId>com.alibaba.cloud</groupId>
+            <artifactId>spring-cloud-circuitbreaker-sentinel</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>com.alibaba.csp</groupId>
             <artifactId>sentinel-apache-dubbo-adapter</artifactId>

spring-cloud-alibaba-sentinel/src/test/java/com/alibaba/cloud/sentinel/ContextIdSentinelFeignTests.java

@@ -37,7 +37,7 @@ import org.springframework.web.bind.annotation.RequestParam;
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**
- * Add this unit test to verify https://github.com/alibaba/spring-cloud-alibaba/pull/838
+ * Add this unit test to verify https://github.com/alibaba/spring-cloud-alibaba/pull/838.
  *
  * @author <a href="mailto:fangjian0423@gmail.com">Jim</a>
  */

spring-cloud-alicloud-ans/src/test/java/com/alibaba/alicloud/ans/test/AnsMockTest.java

@@ -23,7 +23,11 @@ import com.alibaba.ans.shaded.com.taobao.vipserver.client.core.Host;
 /**
  * @author xiaojing
  */
-public class AnsMockTest {
+public final class AnsMockTest {
+
+	private AnsMockTest() {
+
+	}
 
 	public static Host hostInstance(String serviceName, boolean valid,
 			Map<String, String> metadata) {

spring-cloud-alicloud-context/src/test/java/com/alibaba/alicloud/context/oss/OssAutoConfigurationTests.java

@@ -27,7 +27,7 @@ import org.springframework.boot.test.context.runner.ApplicationContextRunner;
 import static org.assertj.core.api.Assertions.assertThat;
 
 /**
- * {@link OSS} {@link OssProperties} Test
+ * {@link OSS} {@link OssProperties} Test.
  *
  * @author <a href="mailto:fangjian0423@gmail.com">Jim</a>
  */