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  *                  compiler.jvmci.compilerToVM.HasFinalizableSubclassTest
  35  */
  36 
  37 package compiler.jvmci.compilerToVM;
  38 
  39 import compiler.jvmci.common.testcases.AbstractClass;
  40 import compiler.jvmci.common.testcases.AbstractClassExtender;
  41 import compiler.jvmci.common.testcases.DoNotImplementInterface;
  42 import compiler.jvmci.common.testcases.MultipleImplementer1;
  43 import compiler.jvmci.common.testcases.MultipleImplementersInterface;
  44 import compiler.jvmci.common.testcases.SingleImplementerInterface;
  45 import jdk.test.lib.Asserts;
  46 import jdk.test.lib.Utils;
  47 import jdk.vm.ci.hotspot.CompilerToVMHelper;
  48 import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
  49 
  50 import java.util.HashSet;
  51 import java.util.Set;
  52 import java.util.stream.Stream;
  53 
  54 public class HasFinalizableSubclassTest {
  55     public static void main(String args[]) {
  56         HasFinalizableSubclassTest test = new HasFinalizableSubclassTest();
  57         for (TestCase tcase : createTestCases()) {
  58             test.runTest(tcase);
  59         }
  60     }
  61 
  62     private static Set<TestCase> createTestCases() {
  63         Stream.of(
  64                     AbstractClassExtender.class,
  65                     SingleImplementerInterface.class,
  66                     MultipleImplementersInterface.class,
  67                     MultipleImplementer1.class,
  68                     DoNotImplementInterface.class)
  69                 .forEach(Utils::ensureClassIsLoaded);
  70         Set<TestCase> result = new HashSet<>();
  71         // iface with finalize method
  72         result.add(new TestCase(SingleImplementerInterface.class, false));
  73         // iface with default finalize method
  74         result.add(new TestCase(MultipleImplementersInterface.class, false));
  75         // class which implements iface w/ default finalize method
  76         result.add(new TestCase(MultipleImplementer1.class, true));
  77         // abstract class with finalizeable subclass
  78         result.add(new TestCase(AbstractClass.class, true));
  79         // non-implemented iface
  80         result.add(new TestCase(DoNotImplementInterface.class, false));
  81         return result;
  82     }
  83 
  84     private void runTest(TestCase tcase) {
  85         System.out.println(tcase);
  86         HotSpotResolvedObjectType metaspaceKlass = CompilerToVMHelper
  87                 .lookupType(Utils.toJVMTypeSignature(tcase.aClass),
  88                         getClass(), /* resolve = */ true);
  89         Asserts.assertEQ(tcase.expected,
  90                 CompilerToVMHelper.hasFinalizableSubclass(metaspaceKlass),
  91                         "Unexpected finalizableSubclass state for "
  92                                 + tcase.aClass.getName());
  93     }
  94 
  95     private static class TestCase {
  96         public final Class<?> aClass;
  97         public final boolean expected;
  98 
  99         public TestCase(Class<?> clazz, boolean expected) {
 100             this.aClass = clazz;
 101             this.expected = expected;
 102         }
 103         @Override
 104         public String toString() {
 105             return "CASE: class= " + aClass.getName() + ", expected=" + expected;
 106         }
 107     }
 108 }
--- EOF ---