diff --git a/README.md b/README.md
index 1b34831fa6e97ee0c93347d47ab1c0c37158ab7c..9b090731a0ac0098c4fa98cd1d4f77630ae9c4c7 100644
--- a/README.md
+++ b/README.md
@@ -46,6 +46,13 @@
 ## 文档
 文档编写中，敬请期待...
 
+## 已知问题
+lombok 生成的 method 问题：https://github.com/rzwitserloot/lombok/issues/1861
+
+对于 xX 类属性名，第一个小写，第二个大写的 bean 属性名，Map -> Bean 或 Bean -> Map 存在问题。
+
+不打算做兼容，待 lombok 新版修复。
+
 ## 协议
 ![LGPL v3](docs/img/lgplv3-147x51.png) 
 
diff --git a/mica-core/src/test/java/net/dreamlu/mica/test/bean/MapToBeanTest.java b/mica-core/src/test/java/net/dreamlu/mica/test/bean/MapToBeanTest.java
index 6e78c44eeb702962878ff66dbb90c816c867e0ff..4cf40467ef1bb9d0a9b8743cfb6f74c83c1f5f99 100644
--- a/mica-core/src/test/java/net/dreamlu/mica/test/bean/MapToBeanTest.java
+++ b/mica-core/src/test/java/net/dreamlu/mica/test/bean/MapToBeanTest.java
@@ -27,9 +27,17 @@ public class MapToBeanTest {
 		map.put("six", "女");
 		map.put("gender", "男");
 		map.put("xx", "xx");
+		map.put("xInt", 100);
+		map.put("xxInt", 101);
+		map.put("xLong", 10000L);
 
 		User1 user1 = BeanUtil.copy(map, User1.class);
 		System.out.println(user1);
+		System.out.println(BeanUtil.toMap(user1));
+
+		User1 userx = new User1();
+		BeanUtil.copy(user1, userx);
+		System.out.println(userx);
 
 		User1 user2 = BeanUtil.copyWithConvert(map, User1.class);
 		System.out.println(user2);
@@ -39,5 +47,8 @@ public class MapToBeanTest {
 
 		User user4 = BeanUtil.copyWithConvert(map, User.class);
 		System.out.println(user4);
+
+		User user5 = BeanUtil.copy(user2, User.class);
+		System.out.println(user5);
 	}
 }
diff --git a/mica-core/src/test/java/net/dreamlu/mica/test/utils/User.java b/mica-core/src/test/java/net/dreamlu/mica/test/utils/User.java
index 9f1776e34d99bbaa03d04007b8697e7f8dc8d0ac..96bdd900a2d96b44ef04679f9562df19865befea 100644
--- a/mica-core/src/test/java/net/dreamlu/mica/test/utils/User.java
+++ b/mica-core/src/test/java/net/dreamlu/mica/test/utils/User.java
@@ -1,6 +1,7 @@
 package net.dreamlu.mica.test.utils;
 
 import lombok.Data;
+import lombok.ToString;
 import net.dreamlu.mica.core.beans.CopyProperty;
 
 @Data
@@ -11,4 +12,7 @@ public class User {
 	private String xx;
 	@CopyProperty("six")
 	private String gender;
+	private int xInt;
+	private int xxInt;
+	private long xLong;
 }
diff --git a/mica-core/src/test/java/net/dreamlu/mica/test/utils/User1.java b/mica-core/src/test/java/net/dreamlu/mica/test/utils/User1.java
index 004f72b6c4406920dfe190ffcb6cf17523d6c8f2..a7eacf0112c4433d7d6189f87b539586cf201259 100644
--- a/mica-core/src/test/java/net/dreamlu/mica/test/utils/User1.java
+++ b/mica-core/src/test/java/net/dreamlu/mica/test/utils/User1.java
@@ -18,4 +18,7 @@ public class User1 {
 	@CopyProperty(ignore = true)
 	private Integer xx;
 	private List<String> data;
+	private int xInt;
+	private Integer xxInt;
+	private long xLong;
 }