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.HasFinalizableSubclassTest
  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.DoNotImplementInterface;
  43 import compiler.jvmci.common.testcases.MultipleImplementer1;
  44 import compiler.jvmci.common.testcases.MultipleImplementersInterface;
  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.HotSpotResolvedObjectType;
  50 
  51 import java.util.HashSet;
  52 import java.util.Set;
  53 import java.util.stream.Stream;
  54 
  55 public class HasFinalizableSubclassTest {
  56     public static void main(String args[]) {
  57         HasFinalizableSubclassTest test = new HasFinalizableSubclassTest();
  58         for (TestCase tcase : createTestCases()) {
  59             test.runTest(tcase);
  60         }
  61     }
  62 
  63     private static Set<TestCase> createTestCases() {
  64         Stream.of(
  65                     AbstractClassExtender.class,
  66                     SingleImplementerInterface.class,
  67                     MultipleImplementersInterface.class,
  68                     MultipleImplementer1.class,
  69                     DoNotImplementInterface.class)
  70                 .forEach(Utils::ensureClassIsLoaded);
  71         Set<TestCase> result = new HashSet<>();
  72         // iface with finalize method
  73         result.add(new TestCase(SingleImplementerInterface.class, false));
  74         // iface with default finalize method
  75         result.add(new TestCase(MultipleImplementersInterface.class, false));
  76         // class which implements iface w/ default finalize method
  77         result.add(new TestCase(MultipleImplementer1.class, true));
  78         // abstract class with finalizeable subclass
  79         result.add(new TestCase(AbstractClass.class, true));
  80         // non-implemented iface
  81         result.add(new TestCase(DoNotImplementInterface.class, false));
  82         return result;
  83     }
  84 
  85     private void runTest(TestCase tcase) {
  86         System.out.println(tcase);
  87         HotSpotResolvedObjectType metaspaceKlass = CompilerToVMHelper
  88                 .lookupType(Utils.toJVMTypeSignature(tcase.aClass),
  89                         getClass(), /* resolve = */ true);
  90         Asserts.assertEQ(tcase.expected,
  91                 CompilerToVMHelper.hasFinalizableSubclass(metaspaceKlass),
  92                         "Unexpected finalizableSubclass state for "
  93                                 + tcase.aClass.getName());
  94     }
  95 
  96     private static class TestCase {
  97         public final Class<?> aClass;
  98         public final boolean expected;
  99 
 100         public TestCase(Class<?> clazz, boolean expected) {
 101             this.aClass = clazz;
 102             this.expected = expected;
 103         }
 104         @Override
 105         public String toString() {
 106             return "CASE: class= " + aClass.getName() + ", expected=" + expected;
 107         }
 108     }
 109 }
--- EOF ---