/* * 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.GetVtableIndexForInterfaceTest */ package compiler.jvmci.compilerToVM; import compiler.jvmci.common.CTVMUtilities; import compiler.jvmci.common.testcases.AbstractClass; import compiler.jvmci.common.testcases.AnotherSingleImplementer; import compiler.jvmci.common.testcases.AnotherSingleImplementerInterface; import compiler.jvmci.common.testcases.DoNotExtendClass; import compiler.jvmci.common.testcases.MultipleAbstractImplementer; import compiler.jvmci.common.testcases.MultipleImplementersInterface; import compiler.jvmci.common.testcases.MultipleImplementersInterfaceExtender; 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.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.lang.reflect.Method; import java.util.HashSet; import java.util.Set; import java.util.stream.Stream; public class GetVtableIndexForInterfaceTest { private static final int INVALID_VTABLE_INDEX = -4; // see method.hpp: VtableIndexFlag public static void main(String args[]) { GetVtableIndexForInterfaceTest test = new GetVtableIndexForInterfaceTest(); 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<>(); Stream.of( AbstractClass.class, SingleImplementer.class, SingleImplementerInterface.class, MultipleImplementersInterface.class, MultipleImplementersInterfaceExtender.class, SingleSubclass.class, SingleSubclassedClass.class, DoNotExtendClass.class, MultipleAbstractImplementer.class ) .forEach(Utils::ensureClassIsLoaded); // non iface method result.add(new TestCase(SingleImplementer.class, SingleImplementer.class, "nonInterfaceMethod", false, InternalError.class)); // iface method w/o default implementation result.add(new TestCase(SingleImplementer.class, SingleImplementerInterface.class, "interfaceMethod", false)); /* another iface which provides default implementation for the original iface*/ result.add(new TestCase(MultipleImplementersInterfaceExtender.class, MultipleImplementersInterface.class, "testMethod", false, InternalError.class)); // iface method w/ default implementation result.add(new TestCase(SingleImplementer.class, SingleImplementerInterface.class, "defaultMethod", true)); // non iface class result.add(new TestCase(SingleSubclass.class, SingleSubclassedClass.class, "inheritedMethod", false, InternalError.class)); // class not implementing iface result.add(new TestCase(DoNotExtendClass.class, SingleImplementerInterface.class, "defaultMethod", false)); // abstract class which doesn't implement iface result.add(new TestCase(AbstractClass.class, SingleImplementerInterface.class, "defaultMethod", false)); // abstract class which implements iface result.add(new TestCase(MultipleAbstractImplementer.class, MultipleImplementersInterface.class, "defaultMethod", true)); // class not initialized result.add(new TestCase(AnotherSingleImplementer.class, AnotherSingleImplementerInterface.class, "defaultMethod", false, InternalError.class)); return result; } private void runTest(TestCase tcase) throws NoSuchMethodException { System.out.println(tcase); Method method = tcase.holder.getDeclaredMethod(tcase.methodName); HotSpotResolvedObjectType metaspaceKlass = CompilerToVMHelper .lookupType(Utils.toJVMTypeSignature(tcase.receiver), getClass(), /* resolve = */ true); HotSpotResolvedJavaMethod metaspaceMethod = CTVMUtilities .getResolvedMethod(tcase.holder, method); int index = 0; try { index = CompilerToVMHelper .getVtableIndexForInterfaceMethod(metaspaceKlass, metaspaceMethod); } catch (Throwable t) { if (tcase.isPositive || tcase.expectedException == null) { throw new Error("Caught unexpected exception " + t); } if (!tcase.expectedException.equals(t.getClass())) { throw new Error(String.format("Caught %s while expected %s", t.getClass().getName(), tcase.expectedException.getName())); } return; } if (tcase.expectedException != null) { throw new AssertionError("Expected exception wasn't caught: " + tcase.expectedException.getName()); } if (tcase.isPositive) { Asserts.assertNE(index, INVALID_VTABLE_INDEX, "Unexpected: got invalid index"); } else { Asserts.assertEQ(index, INVALID_VTABLE_INDEX, "Unexpected: got valid index "); } } private static class TestCase { public final Class receiver; public final Class holder; public final String methodName; public final boolean isPositive; public final Class expectedException; public TestCase(Class receiver, Class holder, String methodName, boolean isPositive, Class expectedException) { this.receiver = receiver; this.holder = holder; this.methodName = methodName; this.isPositive = isPositive; this.expectedException = expectedException; } public TestCase(Class receiver, Class holder, String methodName, boolean isPositive) { this(receiver, holder, methodName, isPositive, null); } @Override public String toString() { return String.format("CASE: receiver=%s, holder=%s, method=%s," + " isPositive=%s%n", receiver.getName(), holder.getName(), methodName, isPositive); } } }