diff --git a/hutool-json/src/test/java/org/dromara/hutool/json/Issue3058Test.java b/hutool-json/src/test/java/org/dromara/hutool/json/Issue3058Test.java
new file mode 100644
index 000000000..41eb89bb5
--- /dev/null
+++ b/hutool-json/src/test/java/org/dromara/hutool/json/Issue3058Test.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2023 looly(loolly@aliyun.com)
+ * Hutool is licensed under Mulan PSL v2.
+ * You can use this software according to the terms and conditions of the Mulan PSL v2.
+ * You may obtain a copy of Mulan PSL v2 at:
+ *          http://license.coscl.org.cn/MulanPSL2
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PSL v2 for more details.
+ */
+
+package org.dromara.hutool.json;
+
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import java.util.SortedMap;
+import java.util.TreeMap;
+
+public class Issue3058Test {
+	@Test
+	void toJsonStrTest() {
+		final SortedMap<Object, Object> sortedMap = new TreeMap<Object, Object>() {
+			private static final long serialVersionUID = 1L;
+			{
+				put("attributes", "a");
+				put("b", "b");
+				put("c", "c");
+			}};
+
+		final String jsonStr = JSONUtil.toJsonStr(sortedMap);
+		Assertions.assertEquals("{\"attributes\":\"a\",\"b\":\"b\",\"c\":\"c\"}", jsonStr);
+	}
+}