From 667b48b40948c00a5312404e340a3d5fa564c591 Mon Sep 17 00:00:00 2001
From: handy <handyplus@163.com>
Date: Wed, 31 May 2023 15:51:09 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E6=B3=A8=E9=87=8A=E9=94=99?=
 =?UTF-8?q?=E8=AF=AF=E5=B9=B6=E6=B7=BB=E5=8A=A0=E5=8D=95=E6=B5=8B?=
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---
 hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java  | 2 +-
 .../src/test/java/cn/hutool/core/map/MapUtilTest.java      | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java b/hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java
index 2a7c79d08..e0f3af043 100755
--- a/hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java
@@ -1305,7 +1305,7 @@ public class MapUtil {
 
 	/**
 	 * 重命名键<br>
-	 * 实现方式为一处然后重新put，当旧的key不存在直接返回<br>
+	 * 实现方式为移除然后重新put，当旧的key不存在直接返回<br>
 	 * 当新的key存在，抛出{@link IllegalArgumentException} 异常
 	 *
 	 * @param <K>    key的类型
diff --git a/hutool-core/src/test/java/cn/hutool/core/map/MapUtilTest.java b/hutool-core/src/test/java/cn/hutool/core/map/MapUtilTest.java
index 56c6fa983..1cb7764a2 100644
--- a/hutool-core/src/test/java/cn/hutool/core/map/MapUtilTest.java
+++ b/hutool-core/src/test/java/cn/hutool/core/map/MapUtilTest.java
@@ -232,4 +232,11 @@ public class MapUtilTest {
 		final String s = MapUtil.joinIgnoreNull(v1, ",", "=");
 		Assert.assertEquals("id=12,name=张三", s);
 	}
+
+	@Test
+	public void renameKeyTest() {
+		final Dict v1 = Dict.of().set("id", 12).set("name", "张三").set("age", null);
+		Map<String, Object> map = MapUtil.renameKey(v1, "name", "newName");
+		Assert.assertEquals("张三", map.get("newName"));
+	}
 }