add serialVersionUID for the classes which implement Serializable interface

Author: binarywang

weixin-java-common/src/main/java/me/chanjar/weixin/common/bean/WxAccessToken.java

@@ -5,6 +5,7 @@
 import java.io.Serializable;
 
 public class WxAccessToken implements Serializable {
+  private static final long serialVersionUID = 8709719312922168909L;
 
   private String accessToken;
 

weixin-java-common/src/main/java/me/chanjar/weixin/common/bean/WxCardApiSignature.java

@@ -10,6 +10,8 @@
  */
 public class WxCardApiSignature implements Serializable {
 
+    private static final long serialVersionUID = 158176707226975979L;
+
     private String appId;
 
     private String cardId;

weixin-java-common/src/main/java/me/chanjar/weixin/common/bean/WxJsapiSignature.java

@@ -6,6 +6,8 @@
  * jspai signature
  */
 public class WxJsapiSignature implements Serializable {
+  private static final long serialVersionUID = -1116808193154384804L;
+
   private String appid;
 
   private String noncestr;

weixin-java-common/src/main/java/me/chanjar/weixin/common/bean/WxMenu.java

@@ -16,6 +16,8 @@
  */
 public class WxMenu implements Serializable {
 
+  private static final long serialVersionUID = -7083914585539687746L;
+
   private List<WxMenuButton> buttons = new ArrayList<WxMenuButton>();
 
   private WxMenuRule matchRule;

weixin-java-common/src/main/java/me/chanjar/weixin/common/bean/result/WxError.java

@@ -12,6 +12,8 @@
  */
 public class WxError implements Serializable {
 
+  private static final long serialVersionUID = 7869786563361406291L;
+
   private int errorCode;
 
   private String errorMsg;

weixin-java-common/src/main/java/me/chanjar/weixin/common/bean/result/WxMediaUploadResult.java

@@ -5,7 +5,8 @@
 import java.io.Serializable;
 
 public class WxMediaUploadResult implements Serializable {
-
+  private static final long serialVersionUID = 330834334738622341L;
+  
   private String type;
   private String mediaId;
   private String thumbMediaId;