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  * @summary Testing compiler.jvmci.CompilerToVM.lookupKlassInPool method

    29  * @library /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  *          java.base/jdk.internal.org.objectweb.asm.tree

    35  *          jdk.internal.vm.ci/jdk.vm.ci.hotspot

    36  *          jdk.internal.vm.ci/jdk.vm.ci.runtime

    37  *          jdk.internal.vm.ci/jdk.vm.ci.meta

    38  *

    39  * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper sun.hotspot.WhiteBox

    40  * @run driver ClassFileInstaller sun.hotspot.WhiteBox

    41  *                                sun.hotspot.WhiteBox$WhiteBoxPermission

    42  * @run main/othervm -Xbootclasspath/a:.

    43  *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI

    44  *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI

    45  *                   -Djvmci.Compiler=null

    46  *                   compiler.jvmci.compilerToVM.LookupKlassInPoolTest

    47  */

    48 

    49 package compiler.jvmci.compilerToVM;

    50 

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

    52 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;

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

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

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

    56 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;

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

    58 

    59 import java.util.HashMap;

    60 import java.util.Map;

    61 

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

    63 

    64 /**

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

    66  */

    67 public class LookupKlassInPoolTest {

    68 

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

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

    71         typeTests.put(CONSTANT_CLASS, LookupKlassInPoolTest::validate);

    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     public static void validate(ConstantPool constantPoolCTVM,

    88                                 ConstantTypes cpType,

    89                                 DummyClasses dummyClass,

    90                                 int i) {

    91         TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, i);

    92         if (entry == null) {

    93             return;

    94         }

    95         Object classToVerify = CompilerToVMHelper.lookupKlassInPool(constantPoolCTVM, i);

    96         if (!(classToVerify instanceof HotSpotResolvedObjectType) && !(classToVerify instanceof String)) {

    97             String msg = String.format("Output of method CTVM.lookupKlassInPool is neither"

    98                                                + " a HotSpotResolvedObjectType, nor a String");

    99             throw new AssertionError(msg);

   100         }

   101         String classNameToRefer = entry.klass;

   102         String outputToVerify = classToVerify.toString();

   103         if (!outputToVerify.contains(classNameToRefer)) {

   104             String msg = String.format("Wrong class accessed by constant pool index %d: %s, but should be %s",

   105                                        i,

   106                                        outputToVerify,

   107                                        classNameToRefer);

   108             throw new AssertionError(msg);

   109         }

   110     }

   111 }