pay模块批量添加缺失的javadoc文档

weixin-java-pay/src/main/java/com/github/binarywang/wxpay/exception/WxPayException.java

@@ -51,11 +51,22 @@ public class WxPayException extends Exception {
    */
   private String xmlString;
 
+  /**
+   * Instantiates a new Wx pay exception.
+   *
+   * @param customErrorMsg the custom error msg
+   */
   public WxPayException(String customErrorMsg) {
     super(customErrorMsg);
     this.customErrorMsg = customErrorMsg;
   }
 
+  /**
+   * Instantiates a new Wx pay exception.
+   *
+   * @param customErrorMsg the custom error msg
+   * @param tr             the tr
+   */
   public WxPayException(String customErrorMsg, Throwable tr) {
     super(customErrorMsg, tr);
     this.customErrorMsg = customErrorMsg;
@@ -73,6 +84,9 @@ public class WxPayException extends Exception {
 
   /**
    * 通过BaseWxPayResult生成异常对象.
+   *
+   * @param payBaseResult the pay base result
+   * @return the wx pay exception
    */
   public static WxPayException from(BaseWxPayResult payBaseResult) {
     return WxPayException.newBuilder()
@@ -85,10 +99,18 @@ public class WxPayException extends Exception {
       .build();
   }
 
+  /**
+   * New builder builder.
+   *
+   * @return the builder
+   */
   public static Builder newBuilder() {
     return new Builder();
   }
 
+  /**
+   * The type Builder.
+   */
   public static final class Builder {
     private String returnCode;
     private String returnMsg;
@@ -100,40 +122,86 @@ public class WxPayException extends Exception {
     private Builder() {
     }
 
+    /**
+     * Return code builder.
+     *
+     * @param returnCode the return code
+     * @return the builder
+     */
     public Builder returnCode(String returnCode) {
       this.returnCode = returnCode;
       return this;
     }
 
+    /**
+     * Return msg builder.
+     *
+     * @param returnMsg the return msg
+     * @return the builder
+     */
     public Builder returnMsg(String returnMsg) {
       this.returnMsg = returnMsg;
       return this;
     }
 
+    /**
+     * Result code builder.
+     *
+     * @param resultCode the result code
+     * @return the builder
+     */
     public Builder resultCode(String resultCode) {
       this.resultCode = resultCode;
       return this;
     }
 
+    /**
+     * Err code builder.
+     *
+     * @param errCode the err code
+     * @return the builder
+     */
     public Builder errCode(String errCode) {
       this.errCode = errCode;
       return this;
     }
 
+    /**
+     * Err code des builder.
+     *
+     * @param errCodeDes the err code des
+     * @return the builder
+     */
     public Builder errCodeDes(String errCodeDes) {
       this.errCodeDes = errCodeDes;
       return this;
     }
 
+    /**
+     * Xml string builder.
+     *
+     * @param xmlString the xml string
+     * @return the builder
+     */
     public Builder xmlString(String xmlString) {
       this.xmlString = xmlString;
       return this;
     }
 
+    /**
+     * Build wx pay exception.
+     *
+     * @return the wx pay exception
+     */
     public WxPayException build() {
       return new WxPayException(this);
     }
 
+    /**
+     * Build error msg string.
+     *
+     * @return the string
+     */
     public String buildErrorMsg() {
       return Joiner.on("，").skipNulls().join(
         returnCode == null ? null : String.format("返回代码：[%s]", returnCode),