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