From f70db6ef9046ca29e8ef3924934d27f2b67ebed4 Mon Sep 17 00:00:00 2001
From: SerLiunx-ctrl <17689543@qq.com>
Date: Wed, 20 Nov 2024 10:50:38 +0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E9=A6=96=E6=AC=A1=E6=A0=B9=E6=8D=AE?=
 =?UTF-8?q?=E7=B1=BB=E5=9E=8B=E8=8E=B7=E5=8F=96=E7=A4=BA=E4=BE=8B=E5=BC=82?=
 =?UTF-8?q?=E5=B8=B8.?=
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---
 .../serliunx/ddns/core/factory/AbstractInstanceFactory.java   | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/serliunx/ddns/core/factory/AbstractInstanceFactory.java b/src/main/java/com/serliunx/ddns/core/factory/AbstractInstanceFactory.java
index f6d7f3c..6616674 100644
--- a/src/main/java/com/serliunx/ddns/core/factory/AbstractInstanceFactory.java
+++ b/src/main/java/com/serliunx/ddns/core/factory/AbstractInstanceFactory.java
@@ -43,7 +43,9 @@ public abstract class AbstractInstanceFactory implements InstanceFactory, Listab
 
     @Override
     public Map<String, Instance> getInstanceOfType(InstanceType type) {
-        Assert.notNull(instanceMap);
+        if (instanceMap == null) {
+            return Collections.emptyMap();
+        }
         return instanceMap.values()
                 .stream()
                 .filter(i -> i.getType().equals(type))