diff --git a/spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-provider-example/src/main/java/org/springframework/cloud/alibaba/cloud/examples/ProviderApplication.java b/spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-provider-example/src/main/java/org/springframework/cloud/alibaba/cloud/examples/ProviderApplication.java
index 5f71f51d..e9d6a743 100644
--- a/spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-provider-example/src/main/java/org/springframework/cloud/alibaba/cloud/examples/ProviderApplication.java
+++ b/spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-provider-example/src/main/java/org/springframework/cloud/alibaba/cloud/examples/ProviderApplication.java
@@ -25,25 +25,26 @@ public class ProviderApplication {
 	@RestController
 	class EchoController {
 
-        @RequestMapping(value = "/", method = RequestMethod.GET)
-        public ResponseEntity index() {
-            return new ResponseEntity("index error", HttpStatus.INTERNAL_SERVER_ERROR);
-        }
+		@RequestMapping(value = "/", method = RequestMethod.GET)
+		public ResponseEntity index() {
+			return new ResponseEntity("index error", HttpStatus.INTERNAL_SERVER_ERROR);
+		}
 
-        @RequestMapping(value = "/test", method = RequestMethod.GET)
-        public ResponseEntity test() {
-            return new ResponseEntity("error", HttpStatus.INTERNAL_SERVER_ERROR);
-        }
+		@RequestMapping(value = "/test", method = RequestMethod.GET)
+		public ResponseEntity test() {
+			return new ResponseEntity("error", HttpStatus.INTERNAL_SERVER_ERROR);
+		}
 
-        @RequestMapping(value = "/sleep", method = RequestMethod.GET)
-        public String sleep() {
-            try {
-                Thread.sleep(1000L);
-            } catch (InterruptedException e) {
-                e.printStackTrace();
-            }
-            return "ok";
-        }
+		@RequestMapping(value = "/sleep", method = RequestMethod.GET)
+		public String sleep() {
+			try {
+				Thread.sleep(1000L);
+			}
+			catch (InterruptedException e) {
+				e.printStackTrace();
+			}
+			return "ok";
+		}
 
 		@RequestMapping(value = "/echo/{string}", method = RequestMethod.GET)
 		public String echo(@PathVariable String string) {
diff --git a/spring-cloud-alibaba-sentinel/src/test/java/org/springframework/cloud/alibaba/sentinel/SentinelAutoConfigurationTests.java b/spring-cloud-alibaba-sentinel/src/test/java/org/springframework/cloud/alibaba/sentinel/SentinelAutoConfigurationTests.java
index 9371335c..555097a6 100644
--- a/spring-cloud-alibaba-sentinel/src/test/java/org/springframework/cloud/alibaba/sentinel/SentinelAutoConfigurationTests.java
+++ b/spring-cloud-alibaba-sentinel/src/test/java/org/springframework/cloud/alibaba/sentinel/SentinelAutoConfigurationTests.java
@@ -106,9 +106,9 @@ public class SentinelAutoConfigurationTests {
 	@LocalServerPort
 	private int port;
 
-    private String flowUrl = "http://localhost:" + port + "/flow";
+	private String flowUrl = "http://localhost:" + port + "/flow";
 
-    private String degradeUrl = "http://localhost:" + port + "/degrade";
+	private String degradeUrl = "http://localhost:" + port + "/degrade";
 
 	@Before
 	public void setUp() {
@@ -249,14 +249,15 @@ public class SentinelAutoConfigurationTests {
 				restTemplate.getInterceptors().size());
 		assertEquals("RestTemplateWithBlockClass interceptors size was wrong", 1,
 				restTemplateWithBlockClass.getInterceptors().size());
-		ResponseEntity responseEntityBlock = restTemplateWithBlockClass.getForEntity(flowUrl,
-				String.class);
+		ResponseEntity responseEntityBlock = restTemplateWithBlockClass
+				.getForEntity(flowUrl, String.class);
 		assertEquals("RestTemplateWithBlockClass Sentinel Block Message was wrong",
 				"Oops", responseEntityBlock.getBody());
 		assertEquals(
 				"RestTemplateWithBlockClass Sentinel Block Http Status Code was wrong",
 				HttpStatus.OK, responseEntityBlock.getStatusCode());
-		ResponseEntity responseEntityRaw = restTemplate.getForEntity(flowUrl, String.class);
+		ResponseEntity responseEntityRaw = restTemplate.getForEntity(flowUrl,
+				String.class);
 		assertEquals("RestTemplate Sentinel Block Message was wrong",
 				"RestTemplate request block by sentinel", responseEntityRaw.getBody());
 		assertEquals("RestTemplate Sentinel Block Http Status Code was wrong",