From 897bd5d8013f6e700b50046a34da00f774320c6d Mon Sep 17 00:00:00 2001
From: Looly <loolly@gmail.com>
Date: Fri, 26 Aug 2022 10:14:39 +0800
Subject: [PATCH] add test

---
 .../main/java/cn/hutool/json/JSONUtil.java    | 23 ++++++++++++++++++
 .../java/cn/hutool/json/Issue2564Test.java    | 24 +++++++++++++++++++
 2 files changed, 47 insertions(+)
 create mode 100755 hutool-json/src/test/java/cn/hutool/json/Issue2564Test.java

diff --git a/hutool-json/src/main/java/cn/hutool/json/JSONUtil.java b/hutool-json/src/main/java/cn/hutool/json/JSONUtil.java
index a8ce84388..038bea4b7 100755
--- a/hutool-json/src/main/java/cn/hutool/json/JSONUtil.java
+++ b/hutool-json/src/main/java/cn/hutool/json/JSONUtil.java
@@ -567,6 +567,29 @@ public class JSONUtil {
 		return JSONStrFormatter.format(jsonStr);
 	}
 
+	/**
+	 * JSON对象是否为空，以下情况返回true<br>
+	 * <ul>
+	 *     <li>null</li>
+	 *     <li>{@link JSONArray#isEmpty()}</li>
+	 *     <li>{@link JSONObject#isEmpty()}</li>
+	 * </ul>
+	 *
+	 * @param json JSONObject或JSONArray
+	 * @return 是否为空
+	 */
+	public static boolean isEmpty(final JSON json){
+		if(null == json){
+			return true;
+		}
+		if(json instanceof JSONObject){
+			return ((JSONObject) json).isEmpty();
+		} else if(json instanceof JSONArray){
+			return ((JSONArray) json).isEmpty();
+		}
+		return false;
+	}
+
 	/**
 	 * 是否为JSON类型字符串，首尾都为大括号或中括号判定为JSON字符串
 	 *
diff --git a/hutool-json/src/test/java/cn/hutool/json/Issue2564Test.java b/hutool-json/src/test/java/cn/hutool/json/Issue2564Test.java
new file mode 100755
index 000000000..a70ec745d
--- /dev/null
+++ b/hutool-json/src/test/java/cn/hutool/json/Issue2564Test.java
@@ -0,0 +1,24 @@
+package cn.hutool.json;
+
+import lombok.Getter;
+import lombok.Setter;
+import org.junit.Assert;
+import org.junit.Test;
+
+public class Issue2564Test {
+
+	/**
+	 * 实力类 没有get set方法，不能被认为是一个bean
+	 */
+	@Test()
+	public void emptyToBeanTest(){
+		final String x = "{}";
+		final A a = JSONUtil.toBean(x, JSONConfig.of().setIgnoreError(true), A.class);
+		Assert.assertNull(a);
+	}
+
+	@Getter
+	@Setter
+	public static class A{
+	}
+}