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 /* 26 * @test 27 * @bug 8136421 28 * @requires (os.simpleArch == "x64" | os.simpleArch == "sparcv9" | os.simpleArch == "aarch64") 29 * @library /testlibrary /test/lib / 30 * @compile ../common/CompilerToVMHelper.java 31 * @build sun.hotspot.WhiteBox 32 * compiler.jvmci.compilerToVM.ResolveConstantInPoolTest 33 * @run main ClassFileInstaller sun.hotspot.WhiteBox 34 * sun.hotspot.WhiteBox$WhiteBoxPermission 35 * jdk.vm.ci.hotspot.CompilerToVMHelper 36 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions 37 * -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI 38 * compiler.jvmci.compilerToVM.ResolveConstantInPoolTest 39 */ 40 41 package compiler.jvmci.compilerToVM; 42 43 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses; 44 import java.lang.invoke.MethodHandle; 45 import java.lang.invoke.MethodType; 46 import java.util.HashMap; 47 import java.util.Map; 48 import jdk.test.lib.Asserts; 49 import jdk.vm.ci.hotspot.CompilerToVMHelper; 50 import jdk.vm.ci.meta.ConstantPool; 51 52 /** 53 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolveConstantInPool} method 54 */ 55 public class ResolveConstantInPoolTest { 56 57 private static final String NOT_NULL_MSG 58 = "Object returned by resolveConstantInPool method should not be null"; 59 60 public static void main(String[] args) throws Exception { 61 Map<ConstantPoolTestCase.ConstantTypes, ConstantPoolTestCase.Validator> typeTests = new HashMap<>(); 62 typeTests.put(ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODHANDLE, 63 ResolveConstantInPoolTest::validateMethodHandle); 64 typeTests.put(ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODTYPE, 65 ResolveConstantInPoolTest::validateMethodType); 66 ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests); 67 testCase.test(); 68 // The next "Class.forName" and repeating "testCase.test()" 69 // are here for the following reason. 70 // The first test run is without dummy class initialization, 71 // which means no constant pool cache exists. 72 // The second run is with initialized class (with constant pool cache available). 73 // Some CompilerToVM methods require different input 74 // depending on whether CP cache exists or not. 75 for (DummyClasses dummy : DummyClasses.values()) { 76 Class.forName(dummy.klass.getName()); 77 } 78 testCase.test(); 79 } 80 81 private static void validateMethodHandle(ConstantPool constantPoolCTVM, 82 ConstantPoolTestCase.ConstantTypes cpType, 83 ConstantPoolTestsHelper.DummyClasses dummyClass, 84 int index) { 85 Object constantInPool = CompilerToVMHelper.resolveConstantInPool(constantPoolCTVM, index); 86 String msg = String.format("%s for index %d", NOT_NULL_MSG, index); 87 Asserts.assertNotNull(constantInPool, msg); 88 if (!(constantInPool instanceof MethodHandle)) { 89 msg = String.format("Wrong constant pool entry accessed by index" 90 + " %d: %s, but should be subclass of %s", 91 index, 92 constantInPool.getClass(), 93 MethodHandle.class.getName()); 94 throw new AssertionError(msg); 95 } 96 } 97 98 private static void validateMethodType(ConstantPool constantPoolCTVM, 99 ConstantPoolTestCase.ConstantTypes cpType, 100 ConstantPoolTestsHelper.DummyClasses dummyClass, 101 int index) { 102 Object constantInPool = CompilerToVMHelper.resolveConstantInPool(constantPoolCTVM, index); 103 String msg = String.format("%s for index %d", NOT_NULL_MSG, index); 104 Asserts.assertNotNull(constantInPool, msg); 105 Class mtToVerify = constantInPool.getClass(); 106 Class mtToRefer = MethodType.class; 107 msg = String.format("Wrong method type class accessed by" 108 + " constant pool index %d", 109 index); 110 Asserts.assertEQ(mtToRefer, mtToVerify, msg); 111 } 112 }