diff --git a/spring-cloud-alibaba-dependencies/pom.xml b/spring-cloud-alibaba-dependencies/pom.xml
index 25fbea14..4174a590 100644
--- a/spring-cloud-alibaba-dependencies/pom.xml
+++ b/spring-cloud-alibaba-dependencies/pom.xml
@@ -23,12 +23,6 @@
         <seata.version>1.1.0</seata.version>
         <nacos.client.version>1.2.1</nacos.client.version>
         <nacos.config.version>0.8.0</nacos.config.version>
-        <aliyun.sdk.version>4.4.1</aliyun.sdk.version>
-        <alicloud.context.version>1.0.5</alicloud.context.version>
-        <aliyun.sdk.edas.version>2.44.0</aliyun.sdk.edas.version>
-        <aliyun.java.sdk.dysmsapi>1.1.0</aliyun.java.sdk.dysmsapi>
-        <aliyun.sdk.mns>1.1.8.6</aliyun.sdk.mns>
-        <aliyun.java.sdk.dyvmsapi>1.1.1</aliyun.java.sdk.dyvmsapi>
         <spring.context.support.version>1.0.6</spring.context.support.version>
 
         <!-- Maven Plugin Versions -->
diff --git a/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/fallback/EchoServiceFallback.java b/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/fallback/EchoServiceFallback.java
index 30a9de2b..055521c5 100644
--- a/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/fallback/EchoServiceFallback.java
+++ b/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/fallback/EchoServiceFallback.java
@@ -20,7 +20,6 @@ import com.alibaba.cloud.examples.service.EchoService;
 
 /**
  * @author lengleng
- * @date 2019-08-01
  * <p>
  * sentinel 降级处理
  */
@@ -35,7 +34,7 @@ public class EchoServiceFallback implements EchoService {
 	/**
 	 * 调用服务提供方的输出接口.
 	 * @param str 用户输入
-	 * @return
+	 * @return response
 	 */
 	@Override
 	public String echo(String str) {
diff --git a/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/fallback/EchoServiceFallbackFactory.java b/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/fallback/EchoServiceFallbackFactory.java
index 94366678..9df335d2 100644
--- a/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/fallback/EchoServiceFallbackFactory.java
+++ b/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/fallback/EchoServiceFallbackFactory.java
@@ -22,7 +22,6 @@ import org.springframework.stereotype.Component;
 
 /**
  * @author lengleng
- * @date 2019-08-01
  */
 @Component
 public class EchoServiceFallbackFactory implements FallbackFactory<EchoServiceFallback> {
diff --git a/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/service/EchoService.java b/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/service/EchoService.java
index 4e0da067..417eff79 100644
--- a/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/service/EchoService.java
+++ b/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-consumer-example/src/main/java/com/alibaba/cloud/examples/service/EchoService.java
@@ -24,12 +24,10 @@ import org.springframework.web.bind.annotation.PathVariable;
 
 /**
  * @author lengleng
- * @date 2019-08-01
  * <p>
  * example feign client
  */
-@FeignClient(name = "service-provider",
-		fallbackFactory = EchoServiceFallbackFactory.class)
+@FeignClient(name = "service-provider", fallbackFactory = EchoServiceFallbackFactory.class)
 public interface EchoService {
 
 	/**
diff --git a/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-provider-example/src/main/java/com/alibaba/cloud/examples/controller/EchoController.java b/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-provider-example/src/main/java/com/alibaba/cloud/examples/controller/EchoController.java
index c74f7b48..ccf36448 100644
--- a/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-provider-example/src/main/java/com/alibaba/cloud/examples/controller/EchoController.java
+++ b/spring-cloud-alibaba-examples/sentinel-example/sentinel-feign-example/sentinel-feign-provider-example/src/main/java/com/alibaba/cloud/examples/controller/EchoController.java
@@ -22,7 +22,6 @@ import org.springframework.web.bind.annotation.RestController;
 
 /**
  * @author lengleng
- * @date 2019-08-01
  */
 @RestController
 public class EchoController {
diff --git a/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/annotation/DubboTransported.java b/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/annotation/DubboTransported.java
index efe083ea..725950b3 100644
--- a/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/annotation/DubboTransported.java
+++ b/spring-cloud-alibaba-starters/spring-cloud-starter-dubbo/src/main/java/com/alibaba/cloud/dubbo/annotation/DubboTransported.java
@@ -37,16 +37,12 @@ import static org.apache.dubbo.common.constants.CommonConstants.DEFAULT_RETRIES;
  * Spring Cloud Service-to-Service call is transported by Dubbo under the hood, there are
  * two main scenarios:
  * <ol>
- * <li>{@link FeignClient @FeignClient} annotated classes:
- * <ul>
- * If {@link DubboTransported @DubboTransported} annotated classes, the invocation of all
+ * <li>{@link FeignClient @FeignClient} annotated classes: If
+ * {@link DubboTransported @DubboTransported} annotated classes, the invocation of all
  * methods of {@link FeignClient @FeignClient} annotated classes.
- * </ul>
- * <ul>
+ *
  * If {@link DubboTransported @DubboTransported} annotated methods of
- * {@link FeignClient @FeignClient} annotated classes.
- * </ul>
- * </li>
+ * {@link FeignClient @FeignClient} annotated classes.</li>
  * <li>{@link LoadBalanced @LoadBalanced} {@link RestTemplate} annotated field, method and
  * parameters</li>
  * </ol>