1 /*

     2  * Copyright (c) 2015, 2019, 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.access

    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  *                   -XX:-UseJVMCICompiler

    44  *                   compiler.jvmci.compilerToVM.ResolveConstantInPoolTest

    45  */

    46 

    47 package compiler.jvmci.compilerToVM;

    48 

    49 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;

    50 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;

    51 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;

    52 import jdk.test.lib.Asserts;

    53 import jdk.vm.ci.hotspot.CompilerToVMHelper;

    54 import jdk.vm.ci.meta.ConstantPool;

    55 

    56 import java.lang.invoke.MethodHandle;

    57 import java.lang.invoke.MethodType;

    58 import java.util.HashMap;

    59 import java.util.Map;

    60 

    61 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODHANDLE;

    62 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODTYPE;

    63 

    64 /**

    65  * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolveConstantInPool} method

    66  */

    67 public class ResolveConstantInPoolTest {

    68 

    69     private static final String NOT_NULL_MSG

    70             = "Object returned by resolveConstantInPool method should not be null";

    71 

    72     public static void main(String[] args) throws Exception {

    73         Map<ConstantTypes, Validator> typeTests = new HashMap<>();

    74         typeTests.put(CONSTANT_METHODHANDLE, ResolveConstantInPoolTest::validateMethodHandle);

    75         typeTests.put(CONSTANT_METHODTYPE, ResolveConstantInPoolTest::validateMethodType);

    76         ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);

    77         testCase.test();

    78         // The next "Class.forName" and repeating "testCase.test()"

    79         // are here for the following reason.

    80         // The first test run is without dummy class initialization,

    81         // which means no constant pool cache exists.

    82         // The second run is with initialized class (with constant pool cache available).

    83         // Some CompilerToVM methods require different input

    84         // depending on whether CP cache exists or not.

    85         for (DummyClasses dummy : DummyClasses.values()) {

    86             Class.forName(dummy.klass.getName());

    87         }

    88         testCase.test();

    89     }

    90 

    91     private static void validateMethodHandle(ConstantPool constantPoolCTVM,

    92                                              ConstantTypes cpType,

    93                                              DummyClasses dummyClass,

    94                                              int index) {

    95         Object constantInPool = CompilerToVMHelper.resolveConstantInPool(constantPoolCTVM, index);

    96         String msg = String.format("%s for index %d", NOT_NULL_MSG, index);

    97         Asserts.assertNotNull(constantInPool, msg);

    98         if (!(constantInPool instanceof MethodHandle)) {

    99             msg = String.format("Wrong constant pool entry accessed by index"

   100                                         + " %d: %s, but should be subclass of %s",

   101                                 index,

   102                                 constantInPool.getClass(),

   103                                 MethodHandle.class.getName());

   104             throw new AssertionError(msg);

   105         }

   106     }

   107 

   108     private static void validateMethodType(ConstantPool constantPoolCTVM,

   109                                            ConstantTypes cpType,

   110                                            DummyClasses dummyClass,

   111                                            int index) {

   112         Object constantInPool = CompilerToVMHelper.resolveConstantInPool(constantPoolCTVM, index);

   113         String msg = String.format("%s for index %d", NOT_NULL_MSG, index);

   114         Asserts.assertNotNull(constantInPool, msg);

   115         Class mtToVerify = constantInPool.getClass();

   116         Class mtToRefer = MethodType.class;

   117         msg = String.format("Wrong method type class accessed by"

   118                                     + " constant pool index %d",

   119                             index);

   120         Asserts.assertEQ(mtToRefer, mtToVerify, msg);

   121     }

   122 }