1 /* 2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 8136421 27 * @requires vm.jvmci 28 * @library / /test/lib 29 * @library ../common/patches 30 * @modules java.base/jdk.internal.misc 31 * @modules java.base/jdk.internal.org.objectweb.asm 32 * java.base/jdk.internal.org.objectweb.asm.tree 33 * jdk.internal.vm.ci/jdk.vm.ci.hotspot 34 * jdk.internal.vm.ci/jdk.vm.ci.code 35 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper 36 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 37 * -Djvmci.Compiler=null 38 * compiler.jvmci.compilerToVM.ResolveMethodTest 39 */ 40 41 package compiler.jvmci.compilerToVM; 42 43 import compiler.jvmci.common.CTVMUtilities; 44 import compiler.jvmci.common.testcases.AbstractClass; 45 import compiler.jvmci.common.testcases.AbstractClassExtender; 46 import compiler.jvmci.common.testcases.MultipleImplementer1; 47 import compiler.jvmci.common.testcases.MultipleImplementer2; 48 import compiler.jvmci.common.testcases.MultipleImplementersInterface; 49 import compiler.jvmci.common.testcases.SingleImplementer; 50 import compiler.jvmci.common.testcases.SingleImplementerInterface; 51 import compiler.jvmci.common.testcases.SingleSubclass; 52 import compiler.jvmci.common.testcases.SingleSubclassedClass; 53 import jdk.internal.misc.Unsafe; 54 import jdk.test.lib.Asserts; 55 import jdk.test.lib.Utils; 56 import jdk.vm.ci.hotspot.CompilerToVMHelper; 57 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod; 58 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType; 59 60 import java.util.HashSet; 61 import java.util.Set; 62 63 public class ResolveMethodTest { 64 private static final Unsafe UNSAFE = Unsafe.getUnsafe(); 65 66 public static void main(String args[]) { 67 ResolveMethodTest test = new ResolveMethodTest(); 68 // positive cases 69 try { 70 for (TestCase tcase: createTestCases()) { 71 test.runTest(tcase); 72 } 73 } catch (NoSuchMethodException e) { 74 throw new Error("TEST BUG: can't find requested method", e); 75 } 76 } 77 78 private static Set<TestCase> createTestCases() { 79 Set<TestCase> result = new HashSet<>(); 80 // a usual class public method 81 result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, 82 "usualMethod", ResolveMethodTest.class, true)); 83 // an array method 84 result.add(new TestCase(int[].class, Object.class, "toString", 85 ResolveMethodTest.class, true)); 86 // a method from base class, which was overriden in tested one 87 result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, 88 "overridenMethod", ResolveMethodTest.class, true)); 89 // a method from base class, which was not overriden in tested one 90 result.add(new TestCase(SingleSubclass.class, 91 SingleSubclassedClass.class, "inheritedMethod", 92 ResolveMethodTest.class, true)); 93 /* a method from base class, which was overriden in tested one with 94 base class as holder */ 95 result.add(new TestCase(SingleSubclass.class, 96 SingleSubclassedClass.class, "overridenMethod", 97 ResolveMethodTest.class, true)); 98 // an interface method 99 result.add(new TestCase(SingleImplementer.class, 100 SingleImplementerInterface.class, "interfaceMethod", 101 ResolveMethodTest.class, true)); 102 // an interface default method overriden in implementer 103 result.add(new TestCase(MultipleImplementer1.class, 104 MultipleImplementersInterface.class, "defaultMethod", 105 ResolveMethodTest.class, true)); 106 // an interface default method not overriden in implementer 107 result.add(new TestCase(MultipleImplementer2.class, 108 MultipleImplementersInterface.class, "defaultMethod", 109 ResolveMethodTest.class, true)); 110 // an abstract method 111 result.add(new TestCase(AbstractClassExtender.class, AbstractClass.class, 112 "abstractMethod", ResolveMethodTest.class, true)); 113 // private method with right accessor 114 result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, 115 "privateMethod", SingleSubclass.class, true)); 116 // package-private method with right accessor 117 result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, 118 "defaultAccessMethod", SingleSubclass.class, true)); 119 120 // negative cases 121 122 // private method of another class 123 result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, 124 "privateMethod", ResolveMethodTest.class, false)); 125 // package-private method from another package 126 result.add(new TestCase(SingleSubclass.class, SingleSubclass.class, 127 "defaultAccessMethod", ResolveMethodTest.class, false)); 128 return result; 129 } 130 131 private void runTest(TestCase tcase) throws NoSuchMethodException { 132 System.out.println(tcase); 133 HotSpotResolvedJavaMethod metaspaceMethod = CTVMUtilities 134 .getResolvedMethod(tcase.holder, 135 tcase.holder.getDeclaredMethod(tcase.methodName)); 136 HotSpotResolvedObjectType holderMetaspace = CompilerToVMHelper 137 .lookupType(Utils.toJVMTypeSignature(tcase.holder), 138 getClass(), /* resolve = */ true); 139 HotSpotResolvedObjectType callerMetaspace = CompilerToVMHelper 140 .lookupType(Utils.toJVMTypeSignature(tcase.caller), 141 getClass(), /* resolve = */ true); 142 HotSpotResolvedObjectType receiverMetaspace = CompilerToVMHelper 143 .lookupType(Utils.toJVMTypeSignature(tcase.receiver), 144 getClass(), /* resolve = */ true); 145 146 // Can only resolve methods on a linked class so force initialization 147 receiverMetaspace.initialize(); 148 HotSpotResolvedJavaMethod resolvedMetaspaceMethod 149 = CompilerToVMHelper.resolveMethod(receiverMetaspace, 150 metaspaceMethod, callerMetaspace); 151 if (tcase.isPositive) { 152 Asserts.assertNotNull(resolvedMetaspaceMethod, 153 "Unexpected null resolved method value for " 154 + tcase.methodName); 155 Asserts.assertEQ(metaspaceMethod.getName(), tcase.methodName, 156 "Reflection and c2vm method names doesn't match"); 157 } else { 158 Asserts.assertNull(resolvedMetaspaceMethod, 159 "Method unexpectedly resolved"); 160 } 161 } 162 163 private static class TestCase { 164 public final Class<?> receiver; 165 public final Class<?> holder; 166 public final Class<?> caller; 167 public final String methodName; 168 public final boolean isPositive; 169 170 public TestCase(Class<?> recv, Class<?> holder, String methodName, 171 Class<?> caller, boolean isPositive) { 172 this.receiver = recv; 173 this.holder = holder; 174 this.caller = caller; 175 this.methodName = methodName; 176 this.isPositive = isPositive; 177 } 178 179 @Override 180 public String toString() { 181 return String.format("CASE: receiver=%s, holder=%s, method=%s," 182 + "caller=%s, isPositive=%s%n", receiver.getName(), 183 holder.getName(), methodName, caller.getName(), isPositive); 184 } 185 } 186 }