/* * Copyright (c) 2015, 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. */ /* * @test * @bug 8136421 * @requires vm.jvmci * @library / /test/lib * @library ../common/patches * @modules java.base/jdk.internal.misc * @modules java.base/jdk.internal.org.objectweb.asm * java.base/jdk.internal.org.objectweb.asm.tree * jdk.internal.vm.ci/jdk.vm.ci.hotspot * jdk.internal.vm.ci/jdk.vm.ci.code * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI * -Djvmci.Compiler=null * compiler.jvmci.compilerToVM.ResolveMethodTest */ package compiler.jvmci.compilerToVM; import compiler.jvmci.common.CTVMUtilities; import compiler.jvmci.common.testcases.AbstractClass; import compiler.jvmci.common.testcases.AbstractClassExtender; import compiler.jvmci.common.testcases.MultipleImplementer1; import compiler.jvmci.common.testcases.MultipleImplementer2; import compiler.jvmci.common.testcases.MultipleImplementersInterface; import compiler.jvmci.common.testcases.SingleImplementer; import compiler.jvmci.common.testcases.SingleImplementerInterface; import compiler.jvmci.common.testcases.SingleSubclass; import compiler.jvmci.common.testcases.SingleSubclassedClass; import jdk.internal.misc.Unsafe; import jdk.test.lib.Asserts; import jdk.test.lib.Utils; import jdk.vm.ci.hotspot.CompilerToVMHelper; import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; import jdk.vm.ci.hotspot.HotSpotResolvedObjectType; import java.util.HashSet; import java.util.Set; public class ResolveMethodTest { private static final Unsafe UNSAFE = Unsafe.getUnsafe(); public static void main(String args[]) { ResolveMethodTest test = new ResolveMethodTest(); // positive cases try { for (TestCase tcase: createTestCases()) { test.runTest(tcase); } } catch (NoSuchMethodException e) { throw new Error("TEST BUG: can't find requested method", e); } } private static Set createTestCases() { Set result = new HashSet<>(); // a usual class public method result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, "usualMethod", ResolveMethodTest.class, true)); // an array method result.add(new TestCase(int[].class, Object.class, "toString", ResolveMethodTest.class, true)); // a method from base class, which was overriden in tested one result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, "overridenMethod", ResolveMethodTest.class, true)); // a method from base class, which was not overriden in tested one result.add(new TestCase(SingleSubclass.class, SingleSubclassedClass.class, "inheritedMethod", ResolveMethodTest.class, true)); /* a method from base class, which was overriden in tested one with base class as holder */ result.add(new TestCase(SingleSubclass.class, SingleSubclassedClass.class, "overridenMethod", ResolveMethodTest.class, true)); // an interface method result.add(new TestCase(SingleImplementer.class, SingleImplementerInterface.class, "interfaceMethod", ResolveMethodTest.class, true)); // an interface default method overriden in implementer result.add(new TestCase(MultipleImplementer1.class, MultipleImplementersInterface.class, "defaultMethod", ResolveMethodTest.class, true)); // an interface default method not overriden in implementer result.add(new TestCase(MultipleImplementer2.class, MultipleImplementersInterface.class, "defaultMethod", ResolveMethodTest.class, true)); // an abstract method result.add(new TestCase(AbstractClassExtender.class, AbstractClass.class, "abstractMethod", ResolveMethodTest.class, true)); // private method with right accessor result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, "privateMethod", SingleSubclass.class, true)); // package-private method with right accessor result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, "defaultAccessMethod", SingleSubclass.class, true)); // negative cases // private method of another class result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, "privateMethod", ResolveMethodTest.class, false)); // package-private method from another package result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, "defaultAccessMethod", ResolveMethodTest.class, false)); return result; } private void runTest(TestCase tcase) throws NoSuchMethodException { System.out.println(tcase); HotSpotResolvedJavaMethod metaspaceMethod = CTVMUtilities .getResolvedMethod(tcase.holder, tcase.holder.getDeclaredMethod(tcase.methodName)); HotSpotResolvedObjectType holderMetaspace = CompilerToVMHelper .lookupType(Utils.toJVMTypeSignature(tcase.holder), getClass(), /* resolve = */ true); HotSpotResolvedObjectType callerMetaspace = CompilerToVMHelper .lookupType(Utils.toJVMTypeSignature(tcase.caller), getClass(), /* resolve = */ true); HotSpotResolvedObjectType receiverMetaspace = CompilerToVMHelper .lookupType(Utils.toJVMTypeSignature(tcase.receiver), getClass(), /* resolve = */ true); // Can only resolve methods on a linked class so force initialization receiverMetaspace.initialize(); HotSpotResolvedJavaMethod resolvedMetaspaceMethod = CompilerToVMHelper.resolveMethod(receiverMetaspace, metaspaceMethod, callerMetaspace); if (tcase.isPositive) { Asserts.assertNotNull(resolvedMetaspaceMethod, "Unexpected null resolved method value for " + tcase.methodName); Asserts.assertEQ(metaspaceMethod.getName(), tcase.methodName, "Reflection and c2vm method names doesn't match"); } else { Asserts.assertNull(resolvedMetaspaceMethod, "Method unexpectedly resolved"); } } private static class TestCase { public final Class receiver; public final Class holder; public final Class caller; public final String methodName; public final boolean isPositive; public TestCase(Class recv, Class holder, String methodName, Class caller, boolean isPositive) { this.receiver = recv; this.holder = holder; this.caller = caller; this.methodName = methodName; this.isPositive = isPositive; } @Override public String toString() { return String.format("CASE: receiver=%s, holder=%s, method=%s," + "caller=%s, isPositive=%s%n", receiver.getName(), holder.getName(), methodName, caller.getName(), isPositive); } } }