From 988ac4e6d57fd550bcd34bc6227f900aef7b0f6b Mon Sep 17 00:00:00 2001
From: Junjie <DELL@qq.com>
Date: 星期一, 08 十二月 2025 09:03:47 +0800
Subject: [PATCH] #

---
 src/main/java/com/zy/system/entity/license/AbstractServerInfos.java |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/src/main/java/com/zy/system/entity/license/AbstractServerInfos.java b/src/main/java/com/zy/system/entity/license/AbstractServerInfos.java
index cb413ae..be84610 100644
--- a/src/main/java/com/zy/system/entity/license/AbstractServerInfos.java
+++ b/src/main/java/com/zy/system/entity/license/AbstractServerInfos.java
@@ -84,6 +84,10 @@
     protected String getMacByInetAddress(InetAddress inetAddr){
         try {
             byte[] mac = NetworkInterface.getByInetAddress(inetAddr).getHardwareAddress();
+            if (mac == null) {
+                return null;
+            }
+
             StringBuffer stringBuffer = new StringBuffer();
 
             for(int i=0;i<mac.length;i++){

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