修改函数名称

Author: lianup

src/main/java/com/wechat/pay/contrib/apache/httpclient/cert/CertificatesManager.java

@@ -102,7 +102,7 @@ public boolean verify(String serialNumber, byte[] message, String signature) {
         public X509Certificate getValidCertificate() {
             X509Certificate certificate;
             try {
-                certificate = CertificatesManager.this.getValidCertificate(merchantId);
+                certificate = CertificatesManager.this.getLatestCertificate(merchantId);
             } catch (NotFoundException e) {
                 throw new NoSuchElementException("没有有效的微信支付平台证书");
             }
@@ -171,7 +171,7 @@ public void stop() {
         }
     }
 
-    private X509Certificate getValidCertificate(String merchantId)
+    private X509Certificate getLatestCertificate(String merchantId)
             throws NotFoundException {
         if (merchantId == null || merchantId.isEmpty()) {
             throw new IllegalArgumentException("merchantId为空");
@@ -200,7 +200,8 @@ private X509Certificate getValidCertificate(String merchantId)
      * 获取商户号为merchantId的验签器
      *
      * @param merchantId 商户号
-     * @return verifier
+     * @return 验签器
+     * @throws NotFoundException merchantId/merchantCertificates/apiV3Key/credentials为空
      */
     public Verifier getVerifier(String merchantId) throws NotFoundException {
         // 若商户信息不存在，返回错误