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.reflect
  33  *          java.base/jdk.internal.org.objectweb.asm
  34  *          jdk.vm.ci/jdk.vm.ci.hotspot

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