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 * java.base/jdk.internal.reflect 32 * java.base/jdk.internal.org.objectweb.asm 33 * jdk.internal.vm.ci/jdk.vm.ci.hotspot 34 * jdk.internal.vm.ci/jdk.vm.ci.runtime 35 * jdk.internal.vm.ci/jdk.vm.ci.meta 36 * 37 * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox 38 * @run driver ClassFileInstaller sun.hotspot.WhiteBox 39 * sun.hotspot.WhiteBox$WhiteBoxPermission 40 * @run main/othervm -Xbootclasspath/a:. 41 * -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 42 * -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI 43 * compiler.jvmci.compilerToVM.ResolveConstantInPoolTest 44 */ 45 46 package compiler.jvmci.compilerToVM; 47 48 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes; 49 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator; 50 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses; 51 import jdk.test.lib.Asserts; 52 import jdk.vm.ci.hotspot.CompilerToVMHelper; 53 import jdk.vm.ci.meta.ConstantPool; 54 55 import java.lang.invoke.MethodHandle; 56 import java.lang.invoke.MethodType; 57 import java.util.HashMap; 58 import java.util.Map; 59 60 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODHANDLE; 61 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODTYPE; 62 63 /** 64 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolveConstantInPool} method 65 */ 66 public class ResolveConstantInPoolTest { 67 68 private static final String NOT_NULL_MSG 69 = "Object returned by resolveConstantInPool method should not be null"; 70 71 public static void main(String[] args) throws Exception { 72 Map<ConstantTypes, Validator> typeTests = new HashMap<>(); 73 typeTests.put(CONSTANT_METHODHANDLE, ResolveConstantInPoolTest::validateMethodHandle); 74 typeTests.put(CONSTANT_METHODTYPE, ResolveConstantInPoolTest::validateMethodType); 75 ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests); 76 testCase.test(); 77 // The next "Class.forName" and repeating "testCase.test()" 78 // are here for the following reason. 79 // The first test run is without dummy class initialization, 80 // which means no constant pool cache exists. 81 // The second run is with initialized class (with constant pool cache available). 82 // Some CompilerToVM methods require different input 83 // depending on whether CP cache exists or not. 84 for (DummyClasses dummy : DummyClasses.values()) { 85 Class.forName(dummy.klass.getName()); 86 } 87 testCase.test(); 88 } 89 90 private static void validateMethodHandle(ConstantPool constantPoolCTVM, 91 ConstantTypes cpType, 92 DummyClasses dummyClass, 93 int index) { 94 Object constantInPool = CompilerToVMHelper.resolveConstantInPool(constantPoolCTVM, index); 95 String msg = String.format("%s for index %d", NOT_NULL_MSG, index); 96 Asserts.assertNotNull(constantInPool, msg); 97 if (!(constantInPool instanceof MethodHandle)) { 98 msg = String.format("Wrong constant pool entry accessed by index" 99 + " %d: %s, but should be subclass of %s", 100 index, 101 constantInPool.getClass(), 102 MethodHandle.class.getName()); 103 throw new AssertionError(msg); 104 } 105 } 106 107 private static void validateMethodType(ConstantPool constantPoolCTVM, 108 ConstantTypes cpType, 109 DummyClasses dummyClass, 110 int index) { 111 Object constantInPool = CompilerToVMHelper.resolveConstantInPool(constantPoolCTVM, index); 112 String msg = String.format("%s for index %d", NOT_NULL_MSG, index); 113 Asserts.assertNotNull(constantInPool, msg); 114 Class mtToVerify = constantInPool.getClass(); 115 Class mtToRefer = MethodType.class; 116 msg = String.format("Wrong method type class accessed by" 117 + " constant pool index %d", 118 index); 119 Asserts.assertEQ(mtToRefer, mtToVerify, msg); 120 } 121 }