1 /*
   2  * Copyright (c) 2015, 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.arch != "aarch64"
  29  * @summary Testing compiler.jvmci.CompilerToVM.lookupKlassInPool method
  30  * @library /testlibrary /../../test/lib /
  31  * @compile ../common/CompilerToVMHelper.java
  32  * @build compiler.jvmci.common.testcases.MultipleImplementersInterface
  33  *        compiler.jvmci.common.testcases.MultipleImplementer2
  34  *        compiler.jvmci.compilerToVM.ConstantPoolTestsHelper
  35  *        compiler.jvmci.compilerToVM.ConstantPoolTestCase
  36  *        compiler.jvmci.compilerToVM.LookupKlassInPoolTest
  37  * @run main ClassFileInstaller jdk.vm.ci.hotspot.CompilerToVMHelper
  38  * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockExperimentalVMOptions
  39  *                   -XX:+EnableJVMCI compiler.jvmci.compilerToVM.LookupKlassInPoolTest
  40  */
  41 
  42 package compiler.jvmci.compilerToVM;
  43 
  44 import java.util.HashMap;
  45 import java.util.Map;
  46 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  47 import jdk.vm.ci.hotspot.HotSpotConstantPool;
  48 import jdk.vm.ci.hotspot.HotSpotResolvedObjectTypeImpl;
  49 import sun.reflect.ConstantPool;
  50 
  51 /**
  52  * Test for {@code compiler.jvmci.CompilerToVM.lookupKlassInPool} method
  53  */
  54 public class LookupKlassInPoolTest {
  55 
  56     public static void main(String[] args)  {
  57         Map<ConstantPoolTestsHelper.ConstantTypes,
  58                 ConstantPoolTestCase.Validator> typeTests = new HashMap<>(1);
  59         typeTests.put(ConstantPoolTestsHelper.ConstantTypes.CONSTANT_CLASS,
  60                 LookupKlassInPoolTest::validate);
  61         ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
  62         testCase.test();
  63     }
  64 
  65     public static void validate(HotSpotConstantPool constantPoolCTVM,
  66             ConstantPool constantPoolSS,
  67             ConstantPoolTestsHelper.DummyClasses dummyClass, int i) {
  68         Object classToVerify = CompilerToVMHelper
  69                 .lookupKlassInPool(constantPoolCTVM, i);
  70         if (!(classToVerify instanceof HotSpotResolvedObjectTypeImpl)
  71                 && !(classToVerify instanceof String)) {
  72             String msg = String.format("Output of method"
  73                     + " CTVM.lookupKlassInPool is neither"
  74                     + " a HotSpotResolvedObjectTypeImpl, nor a String");
  75             throw new AssertionError(msg);
  76         }
  77         int classNameIndex = (int) dummyClass.cp.get(i).value;
  78         String classNameToRefer
  79                 = constantPoolSS.getUTF8At(classNameIndex);
  80         String outputToVerify = classToVerify.toString();
  81         if (!outputToVerify.contains(classNameToRefer)) {
  82             String msg = String.format("Wrong class accessed by constant"
  83                     + " pool index %d: %s, but should be %s",
  84                     i, outputToVerify, classNameToRefer);
  85             throw new AssertionError(msg);
  86         }
  87     }
  88 }