add test

hutool-core/src/main/java/cn/hutool/v7/core/collection/queue/Linked.java

@@ -20,7 +20,7 @@ package cn.hutool.v7.core.collection.queue;
  * Linked接口定义了一个链式数据结构的通用接口<br>
  * 链式结构中每个元素都包含两个指针，分别指向前一个元素和后一个元素。
  *
- * @param <T> 泛型参数，表示链式结构中元素的类型，必须继承自Linked<T>接口
+ * @param <T> 泛型参数，表示链式结构中元素的类型，必须继承自{@code Linked<T>}接口
  * @author Looly
  */
 public interface Linked<T extends Linked<T>> {

hutool-core/src/main/java/cn/hutool/v7/core/reflect/kotlin/KParameter.java

@@ -39,7 +39,13 @@ public class KParameter {
 		METHOD_GET_NAME = MethodUtil.getMethod(kParameterClass, "getName");
 		METHOD_GET_TYPE = MethodUtil.getMethod(kParameterClass, "getType");
 
-		final Class<?> kTypeClass = ClassLoaderUtil.loadClass("kotlin.reflect.jvm.internal.KTypeImpl");
+		Class<?> kTypeClass;
+		try{
+			// Kotlin 2.3.0+
+			kTypeClass = ClassLoaderUtil.loadClass("kotlin.reflect.jvm.internal.types.AbstractKType");
+		} catch (final Exception e) {
+			kTypeClass = ClassLoaderUtil.loadClass("kotlin.reflect.jvm.internal.KTypeImpl");
+		}
 		METHOD_GET_JAVA_TYPE = MethodUtil.getMethod(kTypeClass, "getJavaType");
 	}
 

hutool-core/src/test/java/cn/hutool/v7/core/reflect/kotlin/KClassUtilTest.java

@@ -38,7 +38,7 @@ public class KClassUtilTest {
 		final List<?> constructors = KClassUtil.getConstructors(TestKBean.class);
 		Assertions.assertEquals(1, constructors.size());
 
-		Assertions.assertEquals("kotlin.reflect.jvm.internal.KFunctionImpl",
+		Assertions.assertEquals("kotlin.reflect.jvm.internal.DescriptorKFunction",
 			constructors.get(0).getClass().getName());
 	}
 

hutool-jmh/pom.xml

@@ -25,7 +25,7 @@
 	<parent>
 		<groupId>cn.hutool.v7</groupId>
 		<artifactId>hutool-parent</artifactId>
-		<version>7.0.0.M1</version>
+		<version>7.0.0-M5-SNAPSHOT</version>
 	</parent>
 
 	<artifactId>hutool-jmh</artifactId>
@@ -37,6 +37,11 @@
 		<!-- 此模块不部署 -->
 		<maven.deploy.skip>true</maven.deploy.skip>
 		<jmh.version>1.37</jmh.version>
+
+		<jackson.version>2.20.1</jackson.version>
+		<fastjson2.version>2.0.60</fastjson2.version>
+		<gson.version>2.13.2</gson.version>
+		<moshi.version>1.15.2</moshi.version>
 	</properties>
 
 	<dependencies>
@@ -89,7 +94,7 @@
 		<dependency>
 			<groupId>com.squareup.moshi</groupId>
 			<artifactId>moshi</artifactId>
-			<version>1.15.1</version>
+			<version>${moshi.version}</version>
 			<scope>test</scope>
 		</dependency>
 	</dependencies>

hutool-json/pom.xml

@@ -36,8 +36,8 @@
 		<Automatic-Module-Name>cn.hutool.v7.json</Automatic-Module-Name>
 		<!-- versions -->
 		<jjwt.version>0.13.0</jjwt.version>
-		<jackson.version>2.20.0</jackson.version>
-		<fastjson2.version>2.0.59</fastjson2.version>
+		<jackson.version>2.20.1</jackson.version>
+		<fastjson2.version>2.0.60</fastjson2.version>
 		<gson.version>2.13.2</gson.version>
 		<moshi.version>1.15.2</moshi.version>
 	</properties>

hutool-json/src/test/java/cn/hutool/v7/json/kotlin/JsonToKotlinBeanTest.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2026 Hutool Team.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.hutool.v7.json.kotlin;
+
+import cn.hutool.v7.json.JSONUtil;
+import com.alibaba.fastjson2.JSON;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class JsonToKotlinBeanTest {
+	@Test
+	void toBeanTest() {
+		final TestKBeanForJson bean = JSONUtil.parseObj("{\"id\":\"VampireAchao\", \"name\":\"阿超\", \"country\":\"中国\"}").toBean(TestKBeanForJson.class);
+		assertEquals("VampireAchao", bean.getId());
+		assertEquals("阿超", bean.getName());
+		assertEquals("中国", bean.getCountry());
+	}
+
+	@Test
+	void toBeanByFastJsonTest() {
+		final TestKBeanForJson javaObject = JSON.parseObject("{\"id\":\"VampireAchao\", \"name\":\"阿超\", \"country\":\"中国\"}").toJavaObject(TestKBeanForJson.class);
+		assertEquals("VampireAchao", javaObject.getId());
+		assertEquals("阿超", javaObject.getName());
+		assertEquals("中国", javaObject.getCountry());
+	}
+}

hutool-json/src/test/java/cn/hutool/v7/json/kotlin/TestKBeanForJson.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2026 Hutool Team.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package cn.hutool.v7.json.kotlin
+
+data class TestKBeanForJson(val id: String, var name: String?, var country: String?){
+	init {
+		//println("CTOR called: id=$id, name=$name, country=$country")
+	}
+}

pom.xml

@@ -47,19 +47,24 @@
 		<module>hutool-socket</module>
 		<module>hutool-swing</module>
 		<module>hutool-ai</module>
+		<!-- 性能测试，此模块不发布 -->
+		<module>hutool-jmh</module>
 	</modules>
 
 	<properties>
-		<project.build.sourceEncoding>utf-8</project.build.sourceEncoding>
-		<project.reporting.outputEncoding>utf-8</project.reporting.outputEncoding>
+		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
+		<maven.compiler.encoding>UTF-8</maven.compiler.encoding>
 		<Automatic-Module-Name>cn.hutool.v7</Automatic-Module-Name>
+		<!-- 兼容旧版 Maven -->
+		<argLine>-Dfile.encoding=UTF-8</argLine>
 
 		<!-- versions -->
 		<compile.version>17</compile.version>
-		<junit.version>6.0.0</junit.version>
+		<junit.version>6.0.1</junit.version>
 		<lombok.version>1.18.42</lombok.version>
-		<kotlin-version>2.2.20</kotlin-version>
-		<bouncycastle.version>1.82</bouncycastle.version>
+		<kotlin-version>2.3.0</kotlin-version>
+		<bouncycastle.version>1.83</bouncycastle.version>
 	</properties>
 
 	<dependencies>
@@ -217,7 +222,7 @@
 			<plugin>
 				<groupId>org.codehaus.mojo</groupId>
 				<artifactId>versions-maven-plugin</artifactId>
-				<version>2.19.1</version>
+				<version>2.20.1</version>
 				<configuration>
 					<generateBackupPoms>false</generateBackupPoms>
 				</configuration>
@@ -257,7 +262,7 @@
 					<plugin>
 						<groupId>org.apache.maven.plugins</groupId>
 						<artifactId>maven-source-plugin</artifactId>
-						<version>3.3.1</version>
+						<version>3.4.0</version>
 						<executions>
 							<execution>
 								<id>oss</id>