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 (vm.arch == "x64" | vm.arch == "sparcv9" | vm.arch == "arm64")
  29  * @summary Testing compiler.jvmci.CompilerToVM.lookupKlassInPool method
  30  * @library /testlibrary /test/lib /
  31  * @library ../common/patches
  32  * @modules java.base/jdk.internal.misc
  33  *          java.base/jdk.internal.reflect
  34  *          java.base/jdk.internal.org.objectweb.asm
  35  *          java.base/jdk.internal.org.objectweb.asm.tree
  36  *          jdk.vm.ci/jdk.vm.ci.hotspot
  37  *          jdk.vm.ci/jdk.vm.ci.meta
  38  * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
  39  * @build sun.hotspot.WhiteBox
  40  *        compiler.jvmci.compilerToVM.LookupKlassInPoolTest
  41  * @run main ClassFileInstaller sun.hotspot.WhiteBox
  42  *                              sun.hotspot.WhiteBox$WhiteBoxPermission
  43  * @run main/othervm -Xbootclasspath/a:.
  44  *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  45  *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
  46  *                   compiler.jvmci.compilerToVM.LookupKlassInPoolTest
  47  */
  48 
  49 package compiler.jvmci.compilerToVM;
  50 
  51 import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
  52 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
  53 import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.*;
  54 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.TestedCPEntry;
  55 import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
  56 import java.util.HashMap;
  57 import java.util.Map;
  58 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  59 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
  60 import jdk.vm.ci.meta.ConstantPool;
  61 
  62 /**
  63  * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.lookupKlassInPool} method
  64  */
  65 public class LookupKlassInPoolTest {
  66 
  67     public static void main(String[] args) throws Exception  {
  68         Map<ConstantTypes, Validator> typeTests = new HashMap<>();
  69         typeTests.put(CONSTANT_CLASS, LookupKlassInPoolTest::validate);
  70         ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
  71         testCase.test();
  72         // The next "Class.forName" and repeating "testCase.test()"
  73         // are here for the following reason.
  74         // The first test run is without dummy class initialization,
  75         // which means no constant pool cache exists.
  76         // The second run is with initialized class (with constant pool cache available).
  77         // Some CompilerToVM methods require different input
  78         // depending on whether CP cache exists or not.
  79         for (DummyClasses dummy : DummyClasses.values()) {
  80             Class.forName(dummy.klass.getName());
  81         }
  82         testCase.test();
  83     }
  84 
  85     public static void validate(ConstantPool constantPoolCTVM,
  86                                 ConstantTypes cpType,
  87                                 DummyClasses dummyClass,
  88                                 int i) {
  89         TestedCPEntry entry = cpType.getTestedCPEntry(dummyClass, i);
  90         if (entry == null) {
  91             return;
  92         }
  93         Object classToVerify = CompilerToVMHelper.lookupKlassInPool(constantPoolCTVM, i);
  94         if (!(classToVerify instanceof HotSpotResolvedObjectType) && !(classToVerify instanceof String)) {
  95             String msg = String.format("Output of method CTVM.lookupKlassInPool is neither"
  96                                                + " a HotSpotResolvedObjectType, nor a String");
  97             throw new AssertionError(msg);
  98         }
  99         String classNameToRefer = entry.klass;
 100         String outputToVerify = classToVerify.toString();
 101         if (!outputToVerify.contains(classNameToRefer)) {
 102             String msg = String.format("Wrong class accessed by constant pool index %d: %s, but should be %s",
 103                                        i,
 104                                        outputToVerify,
 105                                        classNameToRefer);
 106             throw new AssertionError(msg);
 107         }
 108     }
 109 }