diff --git a/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/adapter/MockedConfigKVFile.java b/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/adapter/MockedConfigKVFile.java
index 59e89ebcc..bad8894a1 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/adapter/MockedConfigKVFile.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/adapter/MockedConfigKVFile.java
@@ -138,6 +138,11 @@ public boolean hasContent() {
 		return false;
 	}
 
+	@Override
+	public String getMd5() {
+		return null;
+	}
+
 	@Override
 	public void addChangeListener(ConfigFileChangeListener configFileChangeListener) {
 
diff --git a/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/condition/ConditionalOnReflectRefreshTypeTest.java b/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/condition/ConditionalOnReflectRefreshTypeTest.java
index e50eac0cc..ebde3e470 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/condition/ConditionalOnReflectRefreshTypeTest.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/condition/ConditionalOnReflectRefreshTypeTest.java
@@ -20,6 +20,7 @@
 
 import java.io.IOException;
 import java.net.ServerSocket;
+import java.util.Objects;
 
 import com.tencent.cloud.polaris.config.PolarisConfigAutoConfiguration;
 import com.tencent.cloud.polaris.config.PolarisConfigBootstrapAutoConfiguration;
@@ -67,7 +68,9 @@ static void beforeAll() {
 
 	@AfterAll
 	static void afterAll() throws IOException {
-		serverSocket.close();
+		if (Objects.nonNull(serverSocket)) {
+			serverSocket.close();
+		}
 	}
 
 	@Test
diff --git a/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/spring/annotation/SpringValueProcessorTest.java b/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/spring/annotation/SpringValueProcessorTest.java
index d4d30c2f0..24439a72a 100644
--- a/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/spring/annotation/SpringValueProcessorTest.java
+++ b/spring-cloud-starter-tencent-polaris-config/src/test/java/com/tencent/cloud/polaris/config/spring/annotation/SpringValueProcessorTest.java
@@ -22,6 +22,7 @@
 import java.lang.reflect.Method;
 import java.net.ServerSocket;
 import java.util.Collection;
+import java.util.Objects;
 import java.util.Optional;
 
 import com.tencent.cloud.polaris.config.PolarisConfigBootstrapAutoConfiguration;
@@ -71,7 +72,9 @@ static void beforeAll() {
 
 	@AfterAll
 	static void afterAll() throws IOException {
-		serverSocket.close();
+		if (Objects.nonNull(serverSocket)) {
+			serverSocket.close();
+		}
 	}
 
 	@Test
diff --git a/spring-cloud-tencent-dependencies/pom.xml b/spring-cloud-tencent-dependencies/pom.xml
index 072290caa..8aece8bff 100644
--- a/spring-cloud-tencent-dependencies/pom.xml
+++ b/spring-cloud-tencent-dependencies/pom.xml
@@ -244,7 +244,6 @@
 				<version>${springdoc.version}</version>
 			</dependency>
 
-
 			<dependency>
 				<groupId>org.springdoc</groupId>
 				<artifactId>springdoc-openapi-webflux-ui</artifactId>
diff --git a/spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-a/src/main/resources/bootstrap.yml b/spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-a/src/main/resources/bootstrap.yml
index bf4d56b8f..e4c6ada51 100644
--- a/spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-a/src/main/resources/bootstrap.yml
+++ b/spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-a/src/main/resources/bootstrap.yml
@@ -14,7 +14,7 @@ spring:
       contract:
         exposure: true
         report:
-          enabled: false
+          enabled: true
       stat:
         enabled: true
         port: 28083
diff --git a/spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-b/src/main/resources/bootstrap.yml b/spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-b/src/main/resources/bootstrap.yml
index b5c7ec0bf..be96bfdcc 100644
--- a/spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-b/src/main/resources/bootstrap.yml
+++ b/spring-cloud-tencent-examples/quickstart-example/quickstart-callee-service-b/src/main/resources/bootstrap.yml
@@ -14,7 +14,7 @@ spring:
       contract:
         exposure: true
         report:
-          enabled: false
+          enabled: true
       stat:
         enabled: true
         port: 28084
diff --git a/spring-cloud-tencent-examples/quickstart-example/quickstart-caller-service/src/main/resources/bootstrap.yml b/spring-cloud-tencent-examples/quickstart-example/quickstart-caller-service/src/main/resources/bootstrap.yml
index b51cbdec5..7c538b8fa 100644
--- a/spring-cloud-tencent-examples/quickstart-example/quickstart-caller-service/src/main/resources/bootstrap.yml
+++ b/spring-cloud-tencent-examples/quickstart-example/quickstart-caller-service/src/main/resources/bootstrap.yml
@@ -17,7 +17,7 @@ spring:
       contract:
         exposure: true
         report:
-          enabled: false
+          enabled: true
       circuitbreaker:
         enabled: true
       stat:
diff --git a/spring-cloud-tencent-examples/quickstart-example/quickstart-gateway-service/src/main/resources/bootstrap.yml b/spring-cloud-tencent-examples/quickstart-example/quickstart-gateway-service/src/main/resources/bootstrap.yml
index 0db7fd89a..52efd5e2d 100644
--- a/spring-cloud-tencent-examples/quickstart-example/quickstart-gateway-service/src/main/resources/bootstrap.yml
+++ b/spring-cloud-tencent-examples/quickstart-example/quickstart-gateway-service/src/main/resources/bootstrap.yml
@@ -21,7 +21,7 @@ spring:
       contract:
         exposure: true
         report:
-          enabled: false
+          enabled: true
       stat:
         enabled: true
         port: 28081