diff --git a/hutool-json/src/main/java/cn/hutool/json/ObjectMapper.java b/hutool-json/src/main/java/cn/hutool/json/ObjectMapper.java
index 4844629d3..9261e837b 100755
--- a/hutool-json/src/main/java/cn/hutool/json/ObjectMapper.java
+++ b/hutool-json/src/main/java/cn/hutool/json/ObjectMapper.java
@@ -145,7 +145,8 @@ public class ObjectMapper {
 			mapFromTokener(new JSONTokener((InputStream) source, jsonArray.getConfig()), jsonArray, filter);
 		} else if (source instanceof byte[]) {
 			final byte[] bytesSource = (byte[]) source;
-			if('[' == bytesSource[0] && ']' == bytesSource[bytesSource.length - 1]){
+			// 如果是普通的的byte[], 要避免下标越界
+			if (bytesSource.length > 1 && '[' == bytesSource[0] && ']' == bytesSource[bytesSource.length - 1]) {
 				mapFromTokener(new JSONTokener(IoUtil.toStream(bytesSource), jsonArray.getConfig()), jsonArray, filter);
 			}else{
 				// https://github.com/dromara/hutool/issues/2369
diff --git a/hutool-json/src/test/java/cn/hutool/json/JSONUtilTest.java b/hutool-json/src/test/java/cn/hutool/json/JSONUtilTest.java
index ce3e55d52..d6ae6adf6 100644
--- a/hutool-json/src/test/java/cn/hutool/json/JSONUtilTest.java
+++ b/hutool-json/src/test/java/cn/hutool/json/JSONUtilTest.java
@@ -9,6 +9,7 @@ import cn.hutool.core.util.NumberUtil;
 import cn.hutool.json.test.bean.Price;
 import cn.hutool.json.test.bean.UserA;
 import cn.hutool.json.test.bean.UserC;
+import lombok.Data;
 import org.junit.Assert;
 import org.junit.Test;
 
@@ -244,10 +245,29 @@ public class JSONUtilTest {
 	}
 
 	@Test(expected = JSONException.class)
-	public void duplicateKeyTrueTest(){
+	public void duplicateKeyTrueTest() {
 		final String str = "{id:123, name:\"张三\", name:\"李四\"}";
 
 		final JSONObject jsonObject = JSONUtil.parseObj(str, JSONConfig.create().setCheckDuplicate(true));
 		Assert.assertEquals("{\"id\":123,\"name\":\"李四\"}", jsonObject.toString());
 	}
+
+	/**
+	 * 测试普通数组转JSONArray时是否异常, 尤其是byte[]数组, 可能是普通的byte[]数组, 也可能是二进制流
+	 */
+	@Test
+	public void testArrayEntity() {
+		final String jsonStr = JSONUtil.toJsonStr(new ArrayEntity());
+		Assert.assertEquals("{\"a\":[],\"b\":[0],\"c\":[],\"d\":[],\"e\":[]}", jsonStr);
+	}
+
+	@Data
+	static class ArrayEntity {
+		private byte[] a = new byte[0];
+		private byte[] b = new byte[1];
+		private int[] c = new int[0];
+		private Byte[] d = new Byte[0];
+		private Byte[] e = new Byte[1];
+	}
+
 }