From 9db9648539115c0314a3a8311e2feee8f9d26b43 Mon Sep 17 00:00:00 2001
From: Looly <loolly@aliyun.com>
Date: Tue, 4 Jun 2024 08:47:39 +0800
Subject: [PATCH] =?UTF-8?q?CollUtil.subtract=E5=A2=9E=E5=8A=A0=E7=A9=BA?=
 =?UTF-8?q?=E5=88=A4=E5=AE=9A?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 CHANGELOG.md                                                  | 3 ++-
 .../src/main/java/cn/hutool/core/collection/CollUtil.java     | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5186e512..15b0e99b7 100755
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,11 +2,12 @@
 # 🚀Changelog
 
 -------------------------------------------------------------------------------------------------------------
-# 5.8.29(2024-06-02)
+# 5.8.29(2024-06-04)
 
 ### 🐣新特性
 * 【core   】      DateUtil增加offsetYear方法
 * 【core   】      ListUtil增加move方法（issue#3603@Github）
+* 【core   】      CollUtil.subtract增加空判定（issue#3605@Github）
 
 ### 🐞Bug修复
 * 【core   】      修复AnnotationUtil可能的空指针错误
diff --git a/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java b/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java
index b2fe32234..6c295a83f 100755
--- a/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/collection/CollUtil.java
@@ -361,6 +361,10 @@ public class CollUtil {
 	 * @return 单差集
 	 */
 	public static <T> Collection<T> subtract(Collection<T> coll1, Collection<T> coll2) {
+		if(isEmpty(coll1) || isEmpty(coll2)){
+			return coll1;
+		}
+
 		Collection<T> result = ObjectUtil.clone(coll1);
 		try {
 			if (null == result) {