diff --git a/aliyun-java-sdk-core/pom.xml b/aliyun-java-sdk-core/pom.xml
index 4930983851..fc5d4c4d9a 100644
--- a/aliyun-java-sdk-core/pom.xml
+++ b/aliyun-java-sdk-core/pom.xml
@@ -31,7 +31,7 @@
     <licenses>
         <license>
             <name>The Apache License, Version 2.0</name>
-            <url>http://www.apache.org/licenses/LICENSE-2.0.txt</url>
+            <url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>
         </license>
     </licenses>
     <scm>
@@ -135,12 +135,6 @@
             <version>0.8.12</version>
             <classifier>runtime</classifier>
         </dependency>
-        <dependency>
-            <groupId>org.projectlombok</groupId>
-            <artifactId>lombok</artifactId>
-            <version>1.18.34</version>
-            <scope>provided</scope>
-        </dependency>
         <dependency>
             <groupId>org.ini4j</groupId>
             <artifactId>ini4j</artifactId>
diff --git a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpMessage.java b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpMessage.java
index 8ebc20c934..03e4a71334 100644
--- a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpMessage.java
+++ b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpMessage.java
@@ -3,7 +3,6 @@
 import com.aliyuncs.exceptions.ClientException;
 import com.aliyuncs.policy.retry.RetryPolicy;
 import com.aliyuncs.utils.ParameterHelper;
-import lombok.ToString;
 
 import javax.net.ssl.KeyManager;
 import javax.net.ssl.X509TrustManager;
@@ -12,7 +11,6 @@
 import java.util.HashMap;
 import java.util.Map;
 
-@ToString
 public abstract class HttpMessage {
 
     protected static final String CONTENT_TYPE = "Content-Type";
diff --git a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpRequest.java b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpRequest.java
index ecebd4aa7d..dcf860f91f 100644
--- a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpRequest.java
+++ b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpRequest.java
@@ -1,10 +1,7 @@
 package com.aliyuncs.http;
 
-import lombok.ToString;
-
 import java.util.Map;
 
-@ToString(callSuper = true)
 public class HttpRequest extends HttpMessage {
 
     public HttpRequest(String strUrl) {
@@ -17,4 +14,5 @@ public HttpRequest(String strUrl, Map<String, String> tmpHeaders) {
             this.headers = tmpHeaders;
         }
     }
+
 }
diff --git a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpResponse.java b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpResponse.java
index 1c3c2094e5..71d5ab3e44 100644
--- a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpResponse.java
+++ b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/HttpResponse.java
@@ -1,8 +1,5 @@
 package com.aliyuncs.http;
 
-import lombok.ToString;
-
-@ToString(callSuper = true)
 public class HttpResponse extends HttpMessage {
 
     private int status;
diff --git a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/IHttpClient.java b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/IHttpClient.java
index 026949d609..5d11c37d8b 100644
--- a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/IHttpClient.java
+++ b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/IHttpClient.java
@@ -16,7 +16,6 @@ public IHttpClient(HttpClientConfig clientConfig) throws ClientException {
         }
         this.clientConfig = clientConfig;
         init(clientConfig);
-
     }
 
     public IHttpClient() {
diff --git a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/clients/CompatibleUrlConnClient.java b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/clients/CompatibleUrlConnClient.java
index d51356156b..4410cff5d7 100644
--- a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/clients/CompatibleUrlConnClient.java
+++ b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/http/clients/CompatibleUrlConnClient.java
@@ -182,7 +182,6 @@ private Proxy calcProxy(URL url, HttpRequest request) throws ClientException {
             proxy = HttpUtil.getJDKProxy(clientConfig.getHttpProxy(), httpProxy, request);
         }
         return proxy;
-
     }
 
     private HttpURLConnection initHttpConnection(URL url, HttpRequest request) throws ClientException, IOException {
diff --git a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/utils/LogUtils.java b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/utils/LogUtils.java
index b6390b05f2..b2332328b9 100644
--- a/aliyun-java-sdk-core/src/main/java/com/aliyuncs/utils/LogUtils.java
+++ b/aliyun-java-sdk-core/src/main/java/com/aliyuncs/utils/LogUtils.java
@@ -3,8 +3,6 @@
 import com.aliyuncs.exceptions.ClientException;
 import com.aliyuncs.http.HttpRequest;
 import com.aliyuncs.http.HttpResponse;
-import lombok.Getter;
-import lombok.Setter;
 
 import java.net.InetAddress;
 import java.net.MalformedURLException;
@@ -120,8 +118,6 @@ public static LogUnit createLogUnit(HttpRequest httpRequest, HttpResponse httpRe
         return new LogUnit(httpRequest, httpResponse);
     }
 
-    @Getter
-    @Setter
     public static class LogUnit {
         private HttpRequest httpRequest;
         private HttpResponse httpResponse;
@@ -186,5 +182,165 @@ public LogUnit(HttpRequest httpRequest, HttpResponse httpResponse) {
             this.pid = String.valueOf(getCurrentPID());
             this.time = localeNow();
         }
+
+        public String getMethod() {
+            return method;
+        }
+
+        public void setMethod(String method) {
+            this.method = method;
+        }
+
+        public String getUrl() {
+            return url;
+        }
+
+        public void setUrl(String url) {
+            this.url = url;
+        }
+
+        public String getVersion() {
+            return version;
+        }
+
+        public void setVersion(String version) {
+            this.version = version;
+        }
+
+        public String getTime() {
+            return time;
+        }
+
+        public void setTime(String time) {
+            this.time = time;
+        }
+
+        public HttpRequest getHttpRequest() {
+            return httpRequest;
+        }
+
+        public void setHttpRequest(HttpRequest httpRequest) {
+            this.httpRequest = httpRequest;
+        }
+
+        public HttpResponse getHttpResponse() {
+            return httpResponse;
+        }
+
+        public void setHttpResponse(HttpResponse httpResponse) {
+            this.httpResponse = httpResponse;
+        }
+
+        public String getTs() {
+            return ts;
+        }
+
+        public void setTs(String ts) {
+            this.ts = ts;
+        }
+
+        public String getHost() {
+            return host;
+        }
+
+        public void setHost(String host) {
+            this.host = host;
+        }
+
+        public String getTarget() {
+            return target;
+        }
+
+        public void setTarget(String target) {
+            this.target = target;
+        }
+
+        public String getReqHeaders() {
+            return reqHeaders;
+        }
+
+        public void setReqHeaders(String reqHeaders) {
+            this.reqHeaders = reqHeaders;
+        }
+
+        public String getResHeaders() {
+            return resHeaders;
+        }
+
+        public void setResHeaders(String resHeaders) {
+            this.resHeaders = resHeaders;
+        }
+
+        public String getPhrase() {
+            return phrase;
+        }
+
+        public void setPhrase(String phrase) {
+            this.phrase = phrase;
+        }
+
+        public String getHostname() {
+            return hostname;
+        }
+
+        public void setHostname(String hostname) {
+            this.hostname = hostname;
+        }
+
+        public String getReqBody() {
+            return reqBody;
+        }
+
+        public void setReqBody(String reqBody) {
+            this.reqBody = reqBody;
+        }
+
+        public String getResBody() {
+            return resBody;
+        }
+
+        public void setResBody(String resBody) {
+            this.resBody = resBody;
+        }
+
+        public String getPid() {
+            return pid;
+        }
+
+        public void setPid(String pid) {
+            this.pid = pid;
+        }
+
+        public String getCost() {
+            return cost;
+        }
+
+        public void setCost(String cost) {
+            this.cost = cost;
+        }
+
+        public String getStartTime() {
+            return startTime;
+        }
+
+        public void setStartTime(String startTime) {
+            this.startTime = startTime;
+        }
+
+        public String getError() {
+            return error;
+        }
+
+        public void setError(String error) {
+            this.error = error;
+        }
+
+        public String getCode() {
+            return code;
+        }
+
+        public void setCode(String code) {
+            this.code = code;
+        }
     }
 }
diff --git a/aliyun-java-sdk-core/src/test/java/com/aliyuncs/http/HttpRequestTest.java b/aliyun-java-sdk-core/src/test/java/com/aliyuncs/http/HttpRequestTest.java
index 28ba1f7fc1..73fce15a68 100644
--- a/aliyun-java-sdk-core/src/test/java/com/aliyuncs/http/HttpRequestTest.java
+++ b/aliyun-java-sdk-core/src/test/java/com/aliyuncs/http/HttpRequestTest.java
@@ -65,11 +65,4 @@ public void getHttpContentStringTest() throws ClientException, UnsupportedEncodi
         }
 
     }
-
-    @Test
-    public void toStringTest() {
-        HttpRequest request = new HttpRequest("testURL");
-        String res = request.toString();
-        Assert.assertTrue(res.contains("testURL"));
-    }
 }
diff --git a/aliyun-java-sdk-core/src/test/java/com/aliyuncs/http/HttpResponseTest.java b/aliyun-java-sdk-core/src/test/java/com/aliyuncs/http/HttpResponseTest.java
index a0c855fbba..338808776e 100644
--- a/aliyun-java-sdk-core/src/test/java/com/aliyuncs/http/HttpResponseTest.java
+++ b/aliyun-java-sdk-core/src/test/java/com/aliyuncs/http/HttpResponseTest.java
@@ -54,10 +54,4 @@ public void isSuccessTest() {
         response.setStatus(100);
         Assert.assertFalse(response.isSuccess());
     }
-
-    @Test
-    public void toStringTest() {
-        HttpResponse response = new HttpResponse("testURL");
-        Assert.assertTrue(response.toString().contains("testURL"));
-    }
 }