| /* |
| * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| import java.lang.invoke.MethodHandle; |
| import java.lang.invoke.MethodHandleProxies; |
| import java.lang.invoke.MethodHandles; |
| import java.lang.invoke.MethodType; |
| import java.lang.reflect.Constructor; |
| import java.lang.reflect.InvocationHandler; |
| import java.lang.reflect.InvocationTargetException; |
| |
| import org.testng.annotations.BeforeTest; |
| import org.testng.annotations.Test; |
| import static org.testng.Assert.*; |
| |
| /** |
| * @test |
| * @summary test MethodHandleProxies that adds qualified export of sun.invoke |
| * from java.base to a dynamic module |
| * @run testng ProxyForMethodHandle |
| */ |
| public class ProxyForMethodHandle { |
| /** |
| * MethodHandleProxies will add qualified export of sun.invoke from java.base |
| * to a dynamic module |
| */ |
| @Test |
| public static void testRunnableMethodHandle() throws Exception { |
| MethodHandles.Lookup lookup = MethodHandles.lookup(); |
| MethodType mt = MethodType.methodType(void.class); |
| MethodHandle mh = lookup.findStatic(ProxyForMethodHandle.class, "runForRunnable", mt); |
| Runnable proxy = MethodHandleProxies.asInterfaceInstance(Runnable.class, mh); |
| proxy.run(); |
| |
| Class<?> proxyClass = proxy.getClass(); |
| Module target = proxyClass.getModule(); |
| assertDynamicModule(target, proxyClass.getClassLoader(), proxyClass); |
| } |
| |
| static void runForRunnable() { |
| System.out.println("runForRunnable"); |
| } |
| |
| public static void assertDynamicModule(Module m, ClassLoader ld, Class<?> proxyClass) { |
| if (!m.isNamed() || !m.getName().startsWith("jdk.proxy")) { |
| throw new RuntimeException(m.getName() + " not dynamic module"); |
| } |
| |
| if (ld != m.getClassLoader() || proxyClass.getClassLoader() != ld) { |
| throw new RuntimeException("unexpected class loader"); |
| } |
| |
| try { |
| Constructor<?> cons = proxyClass.getConstructor(InvocationHandler.class); |
| cons.newInstance(handler); |
| throw new RuntimeException("Expected IllegalAccessException: " + proxyClass); |
| } catch (IllegalAccessException e) { |
| // expected |
| } catch (NoSuchMethodException|InstantiationException|InvocationTargetException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| private final static InvocationHandler handler = |
| (proxy, m, params) -> { throw new RuntimeException(m.toString()); }; |
| } |