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  * @library / /test/lib
  29  * @library ../common/patches
  30  * @modules java.base/jdk.internal.misc
  31  * @modules jdk.internal.vm.ci/jdk.vm.ci.hotspot
  32  * @build jdk.internal.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
  33  * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
  34  *                   -Djvmci.Compiler=null
  35  *                   compiler.jvmci.compilerToVM.GetClassInitializerTest
  36  */
  37 
  38 package compiler.jvmci.compilerToVM;
  39 
  40 import compiler.jvmci.common.testcases.AbstractClass;
  41 import compiler.jvmci.common.testcases.AbstractClassExtender;
  42 import compiler.jvmci.common.testcases.DoNotExtendClass;
  43 import compiler.jvmci.common.testcases.MultipleImplementersInterfaceExtender;
  44 import compiler.jvmci.common.testcases.SingleImplementer;
  45 import compiler.jvmci.common.testcases.SingleImplementerInterface;
  46 import jdk.test.lib.Asserts;
  47 import jdk.test.lib.Utils;
  48 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  49 import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
  50 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
  51 
  52 import java.util.HashSet;
  53 import java.util.Set;
  54 
  55 public class GetClassInitializerTest {
  56 
  57     public static void main(String args[]) {
  58         GetClassInitializerTest test = new GetClassInitializerTest();
  59         for (TestCase tcase : createTestCases()) {
  60             test.runTest(tcase);
  61         }
  62     }
  63 
  64     private static Set<TestCase> createTestCases() {
  65         Set<TestCase> result = new HashSet<>();
  66         // a simple class with initializer
  67         result.add(new TestCase(SingleImplementer.class, true));
  68         // an interface with initializer
  69         result.add(new TestCase(SingleImplementerInterface.class, true));
  70         // an abstract class with initializer
  71         result.add(new TestCase(AbstractClass.class, true));
  72         // a class without initializer, extending class with initializer
  73         result.add(new TestCase(AbstractClassExtender.class, false));
  74         // an interface without initializer
  75         result.add(new TestCase(MultipleImplementersInterfaceExtender.class, false));
  76         // a class without initializer
  77         result.add(new TestCase(DoNotExtendClass.class, false));
  78         return result;
  79     }
  80 
  81     private void runTest(TestCase tcase) {
  82         System.out.println(tcase);
  83         String className = tcase.holder.getName();
  84         HotSpotResolvedObjectType resolvedClazz = CompilerToVMHelper
  85                 .lookupType(Utils.toJVMTypeSignature(tcase.holder),
  86                         getClass(), /* resolve = */ true);
  87         HotSpotResolvedJavaMethod initializer = CompilerToVMHelper
  88                 .getClassInitializer(resolvedClazz);
  89         if (tcase.isPositive) {
  90             Asserts.assertNotNull(initializer, "Couldn't get initializer for "
  91                     + className);
  92             Asserts.assertEQ(initializer.getName(), "<clinit>",
  93                     "Unexpected initializer name for " + className);
  94         } else {
  95             Asserts.assertNull(initializer, "Unexpected: found initializer for "
  96                     + className);
  97         }
  98     }
  99 
 100     private static class TestCase {
 101         public final Class<?> holder;
 102         public final boolean isPositive;
 103 
 104         public TestCase(Class<?> clazz, boolean isPositive) {
 105             this.holder = clazz;
 106             this.isPositive = isPositive;
 107         }
 108 
 109         @Override
 110         public String toString() {
 111             return "CASE: clazz=" + holder.getName()
 112                     + ", isPositive=" + isPositive;
 113         }
 114     }
 115 }