1 /*

     2  * Copyright (c) 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 8138708

    27  * @requires vm.jvmci

    28  * @library /test/lib /

    29  * @library ../common/patches

    30  * @modules java.base/jdk.internal.misc

    31  *          java.base/jdk.internal.reflect

    32  *          java.base/jdk.internal.org.objectweb.asm

    33  *          java.base/jdk.internal.org.objectweb.asm.tree

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

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

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

    37  *

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

    39  * @run driver ClassFileInstaller sun.hotspot.WhiteBox

    40  *                                sun.hotspot.WhiteBox$WhiteBoxPermission

    41  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions

    42  *                   -XX:+WhiteBoxAPI -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI

    43  *                   -Djvmci.Compiler=null

    44  *                   compiler.jvmci.compilerToVM.LookupMethodInPoolTest

    45  */

    46 

    47 package compiler.jvmci.compilerToVM;

    48 

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

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

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

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

    53 import jdk.test.lib.Asserts;

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

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

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

    57 

    58 import java.util.HashMap;

    59 import java.util.Map;

    60 

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

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

    63 

    64 /**

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

    66  */

    67 public class LookupMethodInPoolTest {

    68 

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

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

    71         typeTests.put(CONSTANT_METHODREF, LookupMethodInPoolTest::validate);

    72         typeTests.put(CONSTANT_INTERFACEMETHODREF, LookupMethodInPoolTest::validate);

    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 validate(ConstantPool constantPoolCTVM,

    89                                  ConstantTypes cpType,

    90                                  DummyClasses dummyClass,

    91                                  int cpi) {

    92         TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, cpi);

    93         if (entry == null) {

    94             return;

    95         }

    96         int index = cpi;

    97         String cached = "";

    98         int cpci = dummyClass.getCPCacheIndex(cpi);

    99         if (cpci != ConstantPoolTestsHelper.NO_CP_CACHE_PRESENT) {

   100             index = cpci;

   101             cached = "cached ";

   102         }

   103         for (int j = 0; j < entry.opcodes.length; j++) {

   104             HotSpotResolvedJavaMethod methodToVerify = CompilerToVMHelper

   105                     .lookupMethodInPool(constantPoolCTVM, index, entry.opcodes[j]);

   106             String msg = String.format("Object returned by lookupMethodInPool method"

   107                                                + " for %sindex %d should not be null",

   108                                        cached,

   109                                        index);

   110             Asserts.assertNotNull(methodToVerify, msg);

   111             String[] classNameSplit = entry.klass.split("/");

   112             String classNameToRefer = classNameSplit[classNameSplit.length - 1];

   113             String methodNameToRefer = entry.name;

   114             String methodToVerifyToString = methodToVerify.toString();

   115             if (!methodToVerifyToString.contains(classNameToRefer)

   116                     || !methodToVerifyToString.contains(methodNameToRefer)) {

   117                 msg = String.format("String representation \"%s\" of the object"

   118                                             + " returned by lookupMethodInPool method"

   119                                             + " for index %d does not contain a method's class name"

   120                                             + " or method's name, should contain %s.%s",

   121                                     methodToVerifyToString,

   122                                     index,

   123                                     classNameToRefer,

   124                                     methodNameToRefer);

   125                 throw new AssertionError(msg);

   126             }

   127         }

   128     }

   129 }