/* * Copyright (c) 2016, 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. */ package jdk.vm.ci.hotspot.test; import java.io.File; import java.lang.invoke.MethodHandle; import java.lang.invoke.MethodHandles; import java.lang.invoke.MethodType; import java.net.MalformedURLException; import java.net.URL; import java.net.URLClassLoader; import java.nio.file.Paths; import jdk.vm.ci.hotspot.HotSpotConstantReflectionProvider; import jdk.vm.ci.meta.JavaConstant; import jdk.vm.ci.meta.MetaAccessProvider; import jdk.vm.ci.meta.MethodHandleAccessProvider; import jdk.vm.ci.runtime.JVMCI; import org.testng.annotations.DataProvider; public class MethodHandleAccessProviderData implements TestInterface { private static final MetaAccessProvider META_ACCESS = JVMCI.getRuntime().getHostJVMCIBackend().getMetaAccess(); private static final HotSpotConstantReflectionProvider CONSTANT_REFLECTION = (HotSpotConstantReflectionProvider) JVMCI.getRuntime().getHostJVMCIBackend().getConstantReflection(); // see DirectMethodHandle.java to check invoke* method names assignment private static final String IVIRTUAL_RESOLVED_NAME = "invokeVirtual"; private static final String ISTATIC_RESOLVED_NAME = "invokeStatic"; private static final String ISPECIAL_RESOLVED_NAME = "invokeSpecial"; private static final String ISTATICINIT_RESOLVED_NAME = "invokeStaticInit"; private static final String IINTERFACE_RESOLVED_NAME = "invokeInterface"; private static final String INEWSPECIAL_RESOLVED_NAME = "newInvokeSpecial"; @DataProvider(name = "intrinsicsPositive") public static Object[][] getIntrinsicsDataPositive() { Object[][] result; try { result = new Object[][]{ new Object[]{ META_ACCESS.lookupJavaMethod(MethodHandle.class.getDeclaredMethod("invokeBasic", Object[].class)), MethodHandleAccessProvider.IntrinsicMethod.INVOKE_BASIC}, new Object[]{ META_ACCESS.lookupJavaMethod(MethodHandle.class.getDeclaredMethod("linkToInterface", Object[].class)), MethodHandleAccessProvider.IntrinsicMethod.LINK_TO_INTERFACE}, new Object[]{ META_ACCESS.lookupJavaMethod(MethodHandle.class.getDeclaredMethod("linkToStatic", Object[].class)), MethodHandleAccessProvider.IntrinsicMethod.LINK_TO_STATIC}, new Object[]{ META_ACCESS.lookupJavaMethod(MethodHandle.class.getDeclaredMethod("linkToVirtual", Object[].class)), MethodHandleAccessProvider.IntrinsicMethod.LINK_TO_VIRTUAL}, new Object[]{ META_ACCESS.lookupJavaMethod(MethodHandle.class.getDeclaredMethod("linkToSpecial", Object[].class)), MethodHandleAccessProvider.IntrinsicMethod.LINK_TO_SPECIAL}}; } catch (NoSuchMethodException e) { throw new Error("TESTBUG: can't find method: " + e, e); } return result; } @DataProvider(name = "intrinsicsNegative") public static Object[][] getIntrinsicsDataNegative() { Object[][] result; try { result = new Object[][]{new Object[]{META_ACCESS.lookupJavaMethod(MethodHandle.class.getDeclaredMethod("invokeWithArguments", Object[].class))}}; } catch (NoSuchMethodException e) { throw new Error("TESTBUG: can't find method: " + e, e); } return result; } @DataProvider(name = "invokeBasicNegative1") public static Object[][] getInvokeBasicDataNegative1() { Object[][] result; JavaConstant wrongObject = CONSTANT_REFLECTION.forObject("42"); // 2nd parameter is force bytecode generation = true/false result = new Object[][]{ new Object[]{wrongObject, true}, new Object[]{wrongObject, false}, new Object[]{JavaConstant.NULL_POINTER, true}, new Object[]{JavaConstant.NULL_POINTER, false}}; return result; } @DataProvider(name = "invokeBasicNegative2") public static Object[][] getInvokeBasicDataNegative2() { Object[][] result; // 2nd parameter is force bytecode generation = true/false result = new Object[][]{ new Object[]{null, true}, new Object[]{null, false}}; return result; } @DataProvider(name = "invokeBasicPositive") public static Object[][] getInvokeBasicDataPositive() { Object[][] result; MethodHandle mhIVirtual; MethodHandle mhIStatic; MethodHandle mhISpecial; MethodHandle mhIStaticInit; MethodHandle mhINewSpecial; MethodHandle mhIInterface; MethodHandles.Lookup lookup = MethodHandles.lookup(); MethodType voidRet = MethodType.methodType(void.class); Class self = MethodHandleAccessProviderData.class; // let's get a separate, thus, not initialized class ClassLoader current = self.getClassLoader(); String[] cpaths = System.getProperty("java.class.path").split(File.pathSeparator); URL[] urls = new URL[cpaths.length]; try { for (int i = 0; i < cpaths.length; i++) { urls[i] = Paths.get(cpaths[i]).toUri().toURL(); } } catch (MalformedURLException e) { throw new Error("Can't parse classpath url: " + e, e); } Class clone; try { clone = new ParentLastURLClassLoader(urls, current).loadClass(self.getName()); } catch (ClassNotFoundException e) { throw new Error("TESTBUG: can't find class: " + e, e); } try { mhIVirtual = lookup.findVirtual(self, "publicMethod", voidRet); mhIStatic = lookup.findStatic(self, "staticMethod", voidRet); mhISpecial = lookup.findSpecial(self, "privateMethod", voidRet, self); mhIStaticInit = lookup.findStatic(clone, "staticMethod", voidRet); mhINewSpecial = lookup.findConstructor(self, voidRet); mhIInterface = lookup.findVirtual(TestInterface.class, "interfaceMethod", voidRet); } catch (NoSuchMethodException | IllegalAccessException e) { throw new Error("TESTBUG: lookup failed: " + e, e); } JavaConstant jcIVirtual = CONSTANT_REFLECTION.forObject(mhIVirtual); JavaConstant jcIStatic = CONSTANT_REFLECTION.forObject(mhIStatic); JavaConstant jcISpecial = CONSTANT_REFLECTION.forObject(mhISpecial); JavaConstant jcIStaticInit = CONSTANT_REFLECTION.forObject(mhIStaticInit); JavaConstant jcINewSpecial = CONSTANT_REFLECTION.forObject(mhINewSpecial); JavaConstant jcIInterface = CONSTANT_REFLECTION.forObject(mhIInterface); // 2nd parameter is force bytecode generation = true/false result = new Object[][]{ new Object[]{jcIVirtual, true, IVIRTUAL_RESOLVED_NAME}, new Object[]{jcIVirtual, false, IVIRTUAL_RESOLVED_NAME}, new Object[]{jcIStatic, true, ISTATIC_RESOLVED_NAME}, new Object[]{jcIStatic, false, ISTATIC_RESOLVED_NAME}, new Object[]{jcISpecial, true, ISPECIAL_RESOLVED_NAME}, new Object[]{jcISpecial, false, ISPECIAL_RESOLVED_NAME}, new Object[]{jcIStaticInit, true, ISTATICINIT_RESOLVED_NAME}, new Object[]{jcIStaticInit, false, ISTATICINIT_RESOLVED_NAME}, new Object[]{jcINewSpecial, false, INEWSPECIAL_RESOLVED_NAME}, new Object[]{jcINewSpecial, true, INEWSPECIAL_RESOLVED_NAME}, new Object[]{jcIInterface, false, IINTERFACE_RESOLVED_NAME}, new Object[]{jcIInterface, true, IINTERFACE_RESOLVED_NAME}}; return result; } // can't use nested classes for storing these test methods. see JDK-8010319 private void privateMethod() { // empty } public static void staticMethod() { // empty } public void publicMethod() { // empty } @Override public void interfaceMethod() { // empty } } interface TestInterface { void interfaceMethod(); } class ParentLastURLClassLoader extends URLClassLoader { ParentLastURLClassLoader(URL[] urls, ClassLoader parent) { super(urls, parent); } @Override public Class loadClass(String name) throws ClassNotFoundException { try { Class c = findClass(name); if (c != null) { return c; } } catch (ClassNotFoundException e) { // ignore } return super.loadClass(name); } }