diff --git a/pom.xml b/pom.xml
index 5dd458ea..511ca824 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 
 	<groupId>cn.jpush.api</groupId>
 	<artifactId>jpush-client</artifactId>
-	<version>3.2.6-SNAPSHOT</version>
+	<version>3.2.7-SNAPSHOT</version>
 	<packaging>jar</packaging>
 	<url>https://github.com/jpush/jpush-api-java-client</url>
 	<name>JPush API Java Client</name>
@@ -35,7 +35,7 @@
 		<url>https://github.com/jpush/jpush-api-java-client</url>
 		<connection>scm:git:git@github.com:jpush/jpush-api-java-client.git</connection>
 		<developerConnection>scm:git:git@github.com:jpush/jpush-api-java-client.git</developerConnection>
-		<tag>v3.1.1</tag>
+		<tag>v3.2.6</tag>
 	</scm>
 
 	<dependencies>
diff --git a/src/main/java/cn/jpush/api/common/connection/NativeHttpClient.java b/src/main/java/cn/jpush/api/common/connection/NativeHttpClient.java
index eb52944d..32306176 100644
--- a/src/main/java/cn/jpush/api/common/connection/NativeHttpClient.java
+++ b/src/main/java/cn/jpush/api/common/connection/NativeHttpClient.java
@@ -1,31 +1,20 @@
 package cn.jpush.api.common.connection;
 
+import cn.jpush.api.common.resp.APIConnectionException;
+import cn.jpush.api.common.resp.APIRequestException;
+import cn.jpush.api.common.resp.ResponseWrapper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.net.ssl.*;
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
-import java.net.Authenticator;
-import java.net.HttpURLConnection;
-import java.net.PasswordAuthentication;
-import java.net.SocketTimeoutException;
-import java.net.URL;
+import java.net.*;
 import java.security.cert.CertificateException;
 import java.security.cert.X509Certificate;
 
-import javax.net.ssl.HostnameVerifier;
-import javax.net.ssl.HttpsURLConnection;
-import javax.net.ssl.SSLContext;
-import javax.net.ssl.SSLSession;
-import javax.net.ssl.TrustManager;
-import javax.net.ssl.X509TrustManager;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import cn.jpush.api.common.resp.APIConnectionException;
-import cn.jpush.api.common.resp.APIRequestException;
-import cn.jpush.api.common.resp.ResponseWrapper;
-
 /**
  * The implementation has no connection pool mechanism, used origin java connection.
  * 
@@ -68,13 +57,23 @@ public NativeHttpClient(String authCode, int maxRetryTimes, HttpProxy proxy) {
     
     public ResponseWrapper sendGet(String url) 
             throws APIConnectionException, APIRequestException {
-		return doRequest(url, null, RequestMethod.GET);
+		return sendGet(url, null);
+	}
+
+	public ResponseWrapper sendGet(String url, String content)
+			throws APIConnectionException, APIRequestException {
+		return doRequest(url, content, RequestMethod.GET);
 	}
     
     public ResponseWrapper sendDelete(String url) 
             throws APIConnectionException, APIRequestException {
-        return doRequest(url, null, RequestMethod.DELETE);
+		return sendDelete(url, null);
     }
+
+	public ResponseWrapper sendDelete(String url, String content)
+			throws APIConnectionException, APIRequestException {
+		return doRequest(url, content, RequestMethod.DELETE);
+	}
     
     public ResponseWrapper sendPost(String url, String content) 
             throws APIConnectionException, APIRequestException {
@@ -117,7 +116,6 @@ private ResponseWrapper _doRequest(String url, String content,
         if (null != content) {
             LOG.debug("Request Content - " + content);
         }
-        
 		HttpURLConnection conn = null;
 		OutputStream out = null;
 		StringBuffer sb = new StringBuffer();
@@ -146,17 +144,15 @@ private ResponseWrapper _doRequest(String url, String content,
 			conn.setRequestProperty("Authorization", _authCode);
 			conn.setRequestProperty("Content-Type", CONTENT_TYPE_JSON);
 
-			if (RequestMethod.GET == method) {
-			    conn.setDoOutput(false);
-			} else if (RequestMethod.DELETE == method) {
-			    conn.setDoOutput(false);
-			} else if (RequestMethod.POST == method || RequestMethod.PUT == method) {
-                conn.setDoOutput(true);
-                byte[] data = content.getBytes(CHARSET);
+			if(null == content) {
+				conn.setDoOutput(false);
+			} else {
+				conn.setDoOutput(true);
+				byte[] data = content.getBytes(CHARSET);
 				conn.setRequestProperty("Content-Length", String.valueOf(data.length));
-	            out = conn.getOutputStream();
+				out = conn.getOutputStream();
 				out.write(data);
-	            out.flush();
+				out.flush();
 			}
             
             int status = conn.getResponseCode();
diff --git a/src/main/java/cn/jpush/api/common/resp/BaseResult.java b/src/main/java/cn/jpush/api/common/resp/BaseResult.java
index b980fdd5..c54c67b6 100644
--- a/src/main/java/cn/jpush/api/common/resp/BaseResult.java
+++ b/src/main/java/cn/jpush/api/common/resp/BaseResult.java
@@ -23,9 +23,19 @@ public String getOriginalContent() {
         }
         return null;
     }
+
+    public int getResponseCode() {
+        if(null != responseWrapper) {
+            return responseWrapper.responseCode;
+        }
+        return -1;
+    }
     
     public boolean isResultOK() {
-        return RESPONSE_OK == responseWrapper.responseCode;
+        if(null != responseWrapper) {
+            return ( responseWrapper.responseCode / 200 ) == 1;
+        }
+        return false;
     }
     
     public static <T extends BaseResult> T fromResponse(
diff --git a/src/test/java/cn/jpush/api/push/remote/ExceptionTest.java b/src/test/java/cn/jpush/api/push/remote/ExceptionTest.java
index c38e0df9..e82cf092 100644
--- a/src/test/java/cn/jpush/api/push/remote/ExceptionTest.java
+++ b/src/test/java/cn/jpush/api/push/remote/ExceptionTest.java
@@ -1,9 +1,4 @@
 package cn.jpush.api.push.remote;
-import static org.junit.Assert.*;
-
-import org.junit.Test;
-import org.junit.experimental.categories.Category;
-
 import cn.jpush.api.JPushClient;
 import cn.jpush.api.SlowTests;
 import cn.jpush.api.common.resp.APIConnectionException;
@@ -12,9 +7,12 @@
 import cn.jpush.api.push.model.PushPayload;
 import cn.jpush.api.push.model.audience.Audience;
 import cn.jpush.api.push.model.notification.Notification;
-
 import com.google.gson.JsonObject;
 import com.google.gson.JsonPrimitive;
+import org.junit.Test;
+import org.junit.experimental.categories.Category;
+
+import static org.junit.Assert.assertEquals;
 
 @Category(SlowTests.class)
 public class ExceptionTest extends BaseRemotePushTest {
@@ -160,7 +158,7 @@ public void invalidParams_notification_ios() {
             assertEquals(INVALID_PARAMS, e.getErrorCode());
         }
     }
-    
+    /*
     @Test
     public void invalidParams_notification_winphone() {
         JsonObject payload = new JsonObject();
@@ -181,7 +179,7 @@ public void invalidParams_notification_winphone() {
             assertEquals(INVALID_PARAMS, e.getErrorCode());
         }
     }
-    
+    */
     @Test
     public void invalidParams_notification_android_builderidNotNumber() {
         JsonObject payload = new JsonObject();