mirror of
https://gitee.com/chinabugotech/hutool.git
synced 2025-04-19 03:01:48 +08:00
fix code
This commit is contained in:
Looly
parent
9b87961e03
commit
43bada713d
@ -16,8 +16,11 @@ import org.dromara.hutool.core.exceptions.UtilException;
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import org.dromara.hutool.core.lang.Assert;
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import org.dromara.hutool.core.lang.mutable.MutableEntry;
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import org.dromara.hutool.core.map.WeakConcurrentMap;
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import org.dromara.hutool.core.reflect.*;
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import org.dromara.hutool.core.reflect.*;
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import org.dromara.hutool.core.reflect.MethodHandleUtil;
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import org.dromara.hutool.core.reflect.MethodUtil;
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import org.dromara.hutool.core.reflect.ModifierUtil;
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import org.dromara.hutool.core.reflect.ReflectUtil;
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import org.dromara.hutool.core.reflect.lookup.LookupUtil;
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import java.io.Serializable;
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import java.lang.invoke.*;
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@ -103,7 +106,7 @@ public class LambdaFactory {
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final boolean isSerializable = Serializable.class.isAssignableFrom(functionInterfaceType);
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final Method invokeMethod = abstractMethods.get(0);
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final MethodHandles.Lookup caller = LookupFactory.lookup(executable.getDeclaringClass());
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final MethodHandles.Lookup caller = LookupUtil.lookup(executable.getDeclaringClass());
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final String invokeName = invokeMethod.getName();
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final MethodType invokedType = methodType(functionInterfaceType);
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final MethodType samMethodType = methodType(invokeMethod.getReturnType(), invokeMethod.getParameterTypes());
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@ -1,115 +0,0 @@
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/*
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* Copyright (c) 2023 looly(loolly@aliyun.com)
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* Hutool is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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package org.dromara.hutool.core.reflect;
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import org.dromara.hutool.core.exceptions.UtilException;
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import org.dromara.hutool.core.lang.caller.CallerUtil;
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import org.dromara.hutool.core.util.JdkUtil;
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import java.lang.invoke.MethodHandles;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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/**
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* {@link MethodHandles.Lookup}工厂，用于创建{@link MethodHandles.Lookup}对象<br>
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* {@link MethodHandles.Lookup}是一个方法句柄查找对象，用于在指定类中查找符合给定方法名称、方法类型的方法句柄。
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*
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* <p>
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* jdk8中如果直接调用{@link MethodHandles#lookup()}获取到的{@link MethodHandles.Lookup}在调用findSpecial和unreflectSpecial
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* 时会出现权限不够问题，抛出"no private access for invokespecial"异常，因此针对JDK8及JDK9+分别封装lookup方法。
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* </p>
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*
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* <p>
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* 参考：
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* <p><a href="https://blog.csdn.net/u013202238/article/details/108687086">https://blog.csdn.net/u013202238/article/details/108687086</a></p>
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*
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* @author looly
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* @since 5.7.7
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*/
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public class LookupFactory {
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private static final int ALLOWED_MODES = MethodHandles.Lookup.PRIVATE | MethodHandles.Lookup.PROTECTED
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| MethodHandles.Lookup.PACKAGE | MethodHandles.Lookup.PUBLIC;
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private static Method privateLookupInMethod;
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private static Constructor<MethodHandles.Lookup> jdk8LookupConstructor;
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static {
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if(JdkUtil.IS_JDK8){
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// jdk8 这种方式其实也适用于jdk9及以上的版本,但是上面优先,可以避免 jdk9 反射警告
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jdk8LookupConstructor = createJdk8LookupConstructor();
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} else {
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// jdk9+ 开始提供的java.lang.invoke.MethodHandles.privateLookupIn方法
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privateLookupInMethod = createJdk9PrivateLookupInMethod();
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}
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}
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/**
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* jdk8中如果直接调用{@link MethodHandles#lookup()}获取到的{@link MethodHandles.Lookup}在调用findSpecial和unreflectSpecial
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* 时会出现权限不够问题，抛出"no private access for invokespecial"异常，因此针对JDK8及JDK9+分别封装lookup方法。
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*
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* @return {@link MethodHandles.Lookup}
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*/
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public static MethodHandles.Lookup lookup() {
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return lookup(CallerUtil.getCaller());
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}
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/**
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* jdk8中如果直接调用{@link MethodHandles#lookup()}获取到的{@link MethodHandles.Lookup}在调用findSpecial和unreflectSpecial
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* 时会出现权限不够问题，抛出"no private access for invokespecial"异常，因此针对JDK8及JDK9+分别封装lookup方法。
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*
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* @param callerClass 被调用的类或接口
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* @return {@link MethodHandles.Lookup}
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*/
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public static MethodHandles.Lookup lookup(final Class<?> callerClass) {
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//使用反射,因为当前jdk可能不是java9或以上版本
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if (privateLookupInMethod != null) {
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try {
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return (MethodHandles.Lookup) privateLookupInMethod.invoke(MethodHandles.class, callerClass, MethodHandles.lookup());
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} catch (final IllegalAccessException | InvocationTargetException e) {
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throw new UtilException(e);
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}
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}
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//jdk 8
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try {
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return jdk8LookupConstructor.newInstance(callerClass, ALLOWED_MODES);
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} catch (final Exception e) {
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throw new IllegalStateException("no 'Lookup(Class, int)' method in java.lang.invoke.MethodHandles.", e);
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}
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}
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@SuppressWarnings("JavaReflectionMemberAccess")
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private static Method createJdk9PrivateLookupInMethod(){
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try {
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return MethodHandles.class.getMethod("privateLookupIn", Class.class, MethodHandles.Lookup.class);
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} catch (final NoSuchMethodException e) {
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//可能是jdk9 以下版本
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throw new IllegalStateException(
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"There is no 'privateLookupIn(Class, Lookup)' method in java.lang.invoke.MethodHandles.", e);
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}
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}
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private static Constructor<MethodHandles.Lookup> createJdk8LookupConstructor(){
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final Constructor<MethodHandles.Lookup> constructor;
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try {
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constructor = MethodHandles.Lookup.class.getDeclaredConstructor(Class.class, int.class);
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} catch (final NoSuchMethodException e) {
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//可能是jdk8 以下版本
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throw new IllegalStateException(
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"There is no 'Lookup(Class, int)' constructor in java.lang.invoke.MethodHandles.", e);
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}
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constructor.setAccessible(true);
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return constructor;
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}
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}
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@ -14,6 +14,7 @@ package org.dromara.hutool.core.reflect;
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import org.dromara.hutool.core.exceptions.UtilException;
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import org.dromara.hutool.core.lang.Assert;
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import org.dromara.hutool.core.reflect.lookup.LookupUtil;
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import org.dromara.hutool.core.text.StrUtil;
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import java.lang.invoke.MethodHandle;
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@ -51,9 +52,9 @@ public class MethodHandleUtil {
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public static MethodHandle unreflect(final Member methodOrConstructor) {
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try {
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if (methodOrConstructor instanceof Method) {
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return LookupFactory.lookup().unreflect((Method) methodOrConstructor);
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return LookupUtil.lookup().unreflect((Method) methodOrConstructor);
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} else {
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return LookupFactory.lookup().unreflectConstructor((Constructor<?>) methodOrConstructor);
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return LookupUtil.lookup().unreflectConstructor((Constructor<?>) methodOrConstructor);
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}
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} catch (final IllegalAccessException e) {
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throw new UtilException(e);
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@ -80,7 +81,7 @@ public class MethodHandleUtil {
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}
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MethodHandle handle = null;
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final MethodHandles.Lookup lookup = LookupFactory.lookup(callerClass);
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final MethodHandles.Lookup lookup = LookupUtil.lookup(callerClass);
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try {
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handle = lookup.findVirtual(callerClass, name, type);
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} catch (final IllegalAccessException | NoSuchMethodException ignore) {
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@ -129,7 +130,7 @@ public class MethodHandleUtil {
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* @return 构造方法句柄
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*/
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public static MethodHandle findConstructor(final Class<?> callerClass, final MethodType type) {
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final MethodHandles.Lookup lookup = LookupFactory.lookup(callerClass);
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final MethodHandles.Lookup lookup = LookupUtil.lookup(callerClass);
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try {
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return lookup.findConstructor(callerClass, type);
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} catch (final NoSuchMethodException e) {
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@ -252,7 +253,7 @@ public class MethodHandleUtil {
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public static <T> T invoke(final boolean isSpecial, final Object obj, final Method method, final Object... args) {
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Assert.notNull(method, "Method must be not null!");
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final Class<?> declaringClass = method.getDeclaringClass();
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final MethodHandles.Lookup lookup = LookupFactory.lookup(declaringClass);
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final MethodHandles.Lookup lookup = LookupUtil.lookup(declaringClass);
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try {
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MethodHandle handle = isSpecial ? lookup.unreflectSpecial(method, declaringClass)
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: lookup.unreflect(method);
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@ -0,0 +1,63 @@
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/*
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* Copyright (c) 2023 looly(loolly@aliyun.com)
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* Hutool is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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package org.dromara.hutool.core.reflect.lookup;
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import java.lang.invoke.MethodHandles;
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import java.lang.reflect.Constructor;
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/**
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* jdk8中如果直接调用{@link MethodHandles#lookup()}获取到的{@link MethodHandles.Lookup}<br>
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* 在调用findSpecial和unreflectSpecial时会出现权限不够问题，抛出"no private access for invokespecial"异常<br>
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* 所以通过反射创建MethodHandles.Lookup解决该问题。
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* <p>
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* 参考：https://blog.csdn.net/u013202238/article/details/108687086
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*
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* @author looly
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* @since 6.0.0
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*/
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public class ConstructorLookupFactory implements LookupFactory {
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private static final int ALLOWED_MODES = MethodHandles.Lookup.PRIVATE | MethodHandles.Lookup.PROTECTED
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| MethodHandles.Lookup.PACKAGE | MethodHandles.Lookup.PUBLIC;
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private final Constructor<MethodHandles.Lookup> lookupConstructor;
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/**
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* 构造
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*/
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public ConstructorLookupFactory() {
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this.lookupConstructor = createLookupConstructor();
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}
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@Override
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public MethodHandles.Lookup lookup(final Class<?> callerClass) {
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try {
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return lookupConstructor.newInstance(callerClass, ALLOWED_MODES);
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} catch (final Exception e) {
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throw new IllegalStateException("no 'Lookup(Class, int)' method in java.lang.invoke.MethodHandles.", e);
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}
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}
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private static Constructor<MethodHandles.Lookup> createLookupConstructor() {
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final Constructor<MethodHandles.Lookup> constructor;
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try {
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constructor = MethodHandles.Lookup.class.getDeclaredConstructor(Class.class, int.class);
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} catch (final NoSuchMethodException e) {
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//可能是jdk8 以下版本
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throw new IllegalStateException(
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"There is no 'Lookup(Class, int)' constructor in java.lang.invoke.MethodHandles.", e);
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}
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constructor.setAccessible(true);
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return constructor;
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}
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}
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@ -0,0 +1,38 @@
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/*
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* Copyright (c) 2023 looly(loolly@aliyun.com)
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* Hutool is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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package org.dromara.hutool.core.reflect.lookup;
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import java.lang.invoke.MethodHandles;
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/**
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* {@link MethodHandles.Lookup}方法工厂，用于创建{@link MethodHandles.Lookup}对象<br>
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* {@link MethodHandles.Lookup}是一个方法句柄查找对象，用于在指定类中查找符合给定方法名称、方法类型的方法句柄。
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*
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* <p>
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* 参考：https://blog.csdn.net/u013202238/article/details/108687086
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* </p>
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*
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* @author looly
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* @since 6.0.0
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*/
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public interface LookupFactory {
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/**
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* jdk8中如果直接调用{@link MethodHandles#lookup()}获取到的{@link MethodHandles.Lookup}在调用findSpecial和unreflectSpecial
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* 时会出现权限不够问题，抛出"no private access for invokespecial"异常，因此针对JDK8及JDK9+分别封装lookup方法。
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*
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* @param callerClass 被调用的类或接口
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* @return {@link MethodHandles.Lookup}
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*/
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MethodHandles.Lookup lookup(final Class<?> callerClass);
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}
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@ -0,0 +1,67 @@
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/*
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* Copyright (c) 2023 looly(loolly@aliyun.com)
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* Hutool is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PSL v2 for more details.
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*/
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package org.dromara.hutool.core.reflect.lookup;
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import org.dromara.hutool.core.lang.caller.CallerUtil;
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import org.dromara.hutool.core.util.JdkUtil;
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import java.lang.invoke.MethodHandles;
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/**
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* {@link MethodHandles.Lookup}工厂工具，用于创建{@link MethodHandles.Lookup}对象<br>
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* {@link MethodHandles.Lookup}是一个方法句柄查找对象，用于在指定类中查找符合给定方法名称、方法类型的方法句柄。
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*
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* <p>
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* jdk8中如果直接调用{@link MethodHandles#lookup()}获取到的{@link MethodHandles.Lookup}在调用findSpecial和unreflectSpecial
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* 时会出现权限不够问题，抛出"no private access for invokespecial"异常，因此针对JDK8及JDK9+分别封装lookup方法。
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* </p>
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*
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* <p>
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* 参考：https://blog.csdn.net/u013202238/article/details/108687086
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*
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* @author looly
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* @since 6.0.0
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*/
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public class LookupUtil {
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private static final LookupFactory factory;
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static {
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if (JdkUtil.IS_JDK8) {
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factory = new ConstructorLookupFactory();
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} else {
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factory = new MethodLookupFactory();
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}
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}
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/**
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* jdk8中如果直接调用{@link MethodHandles#lookup()}获取到的{@link MethodHandles.Lookup}在调用findSpecial和unreflectSpecial
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* 时会出现权限不够问题，抛出"no private access for invokespecial"异常，因此针对JDK8及JDK9+分别封装lookup方法。
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*
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* @return {@link MethodHandles.Lookup}
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*/
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public static MethodHandles.Lookup lookup() {
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return lookup(CallerUtil.getCaller());
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}
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/**
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* jdk8中如果直接调用{@link MethodHandles#lookup()}获取到的{@link MethodHandles.Lookup}在调用findSpecial和unreflectSpecial
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* 时会出现权限不够问题，抛出"no private access for invokespecial"异常，因此针对JDK8及JDK9+分别封装lookup方法。
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*
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* @param callerClass 被调用的类或接口
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* @return {@link MethodHandles.Lookup}
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*/
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public static MethodHandles.Lookup lookup(final Class<?> callerClass) {
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return factory.lookup(callerClass);
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}
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}
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@ -0,0 +1,60 @@
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/*
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* Copyright (c) 2023 looly(loolly@aliyun.com)
|
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* 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:
|
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* http://license.coscl.org.cn/MulanPSL2
|
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
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* See the Mulan PSL v2 for more details.
|
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*/
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package org.dromara.hutool.core.reflect.lookup;
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import org.dromara.hutool.core.exceptions.UtilException;
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import java.lang.invoke.MethodHandles;
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import java.lang.reflect.InvocationTargetException;
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import java.lang.reflect.Method;
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/**
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* jdk11中直接调用MethodHandles.lookup()获取到的MethodHandles.Lookup只能对接口类型才会权限获取方法的方法句柄MethodHandle。
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* 如果是普通类型Class,需要使用jdk9开始提供的 MethodHandles#privateLookupIn(java.lang.Class, java.lang.invoke.MethodHandles.Lookup)方法.
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* <p>
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* 参考：https://blog.csdn.net/u013202238/article/details/108687086
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*
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* @author looly
|
||||
* @since 6.0.0
|
||||
*/
|
||||
public class MethodLookupFactory implements LookupFactory {
|
||||
|
||||
private final Method privateLookupInMethod;
|
||||
|
||||
/**
|
||||
* 构造
|
||||
*/
|
||||
public MethodLookupFactory() {
|
||||
this.privateLookupInMethod = createJdk9PrivateLookupInMethod();
|
||||
}
|
||||
|
||||
@Override
|
||||
public MethodHandles.Lookup lookup(final Class<?> callerClass) {
|
||||
try {
|
||||
return (MethodHandles.Lookup) privateLookupInMethod.invoke(MethodHandles.class, callerClass, MethodHandles.lookup());
|
||||
} catch (final IllegalAccessException | InvocationTargetException e) {
|
||||
throw new UtilException(e);
|
||||
}
|
||||
}
|
||||
|
||||
@SuppressWarnings("JavaReflectionMemberAccess")
|
||||
private static Method createJdk9PrivateLookupInMethod() {
|
||||
try {
|
||||
return MethodHandles.class.getMethod("privateLookupIn", Class.class, MethodHandles.Lookup.class);
|
||||
} catch (final NoSuchMethodException e) {
|
||||
//可能是jdk9 以下版本
|
||||
throw new IllegalStateException(
|
||||
"There is no 'privateLookupIn(Class, Lookup)' method in java.lang.invoke.MethodHandles.", e);
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -0,0 +1,24 @@
|
||||
/*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
/**
|
||||
* {@link java.lang.invoke.MethodHandles.Lookup} 创建封装<br>
|
||||
* <p>
|
||||
* jdk8中如果直接调用{@link java.lang.invoke.MethodHandles#lookup()}获取到的{@link java.lang.invoke.MethodHandles.Lookup}在调用findSpecial和unreflectSpecial
|
||||
* 时会出现权限不够问题，抛出"no private access for invokespecial"异常，因此针对JDK8及JDK9+分别封装lookup方法。
|
||||
* </p>
|
||||
*
|
||||
* <p>
|
||||
* 参考：
|
||||
* <p><a href="https://blog.csdn.net/u013202238/article/details/108687086">https://blog.csdn.net/u013202238/article/details/108687086</a></p>
|
||||
*/
|
||||
package org.dromara.hutool.core.reflect.lookup;
|
||||
Loading…
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Reference in New Issue
Block a user