From f7a196c1290fdaae8f32081018eb6c24f86e8034 Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Tue, 2 Dec 2025 12:08:01 +0800
Subject: [PATCH] =?UTF-8?q?:art:=20=E4=BF=AE=E5=A4=8D=E6=94=AF=E4=BB=98?=
 =?UTF-8?q?=E5=85=AC=E9=92=A5=E6=A8=A1=E5=BC=8F=E4=B8=8B=E5=9B=9E=E8=B0=83?=
 =?UTF-8?q?=E9=AA=8C=E8=AF=81serialNumber=E7=A9=BA=E6=8C=87=E9=92=88?=
 =?UTF-8?q?=E5=BC=82=E5=B8=B8?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../binarywang/wxpay/v3/auth/PublicCertificateVerifier.java   | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/v3/auth/PublicCertificateVerifier.java b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/v3/auth/PublicCertificateVerifier.java
index ac1dfbca6..62ad61ce1 100644
--- a/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/v3/auth/PublicCertificateVerifier.java
+++ b/weixin-java-pay/src/main/java/com/github/binarywang/wxpay/v3/auth/PublicCertificateVerifier.java
@@ -24,8 +24,8 @@ public class PublicCertificateVerifier implements Verifier{
 
     @Override
     public boolean verify(String serialNumber, byte[] message, String signature) {
-        // 如果序列号不包含"PUB_KEY_ID"且有证书验证器，先尝试证书验证
-        if (!serialNumber.contains("PUB_KEY_ID") && this.certificateVerifier != null) {
+        // 如果序列号不为空且不包含"PUB_KEY_ID"且有证书验证器，先尝试证书验证
+        if (serialNumber != null && !serialNumber.contains("PUB_KEY_ID") && this.certificateVerifier != null) {
             try {
                 if (this.certificateVerifier.verify(serialNumber, message, signature)) {
                     return true;