HasFinalizableSubclassTest.java revision 13491:143019ae96f5 
150476Speter/*
28478Swollman * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved.
38478Swollman * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
474815Sru *
58478Swollman * This code is free software; you can redistribute it and/or modify it
68478Swollman * 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
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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
38package compiler.jvmci.compilerToVM;
39
40import compiler.jvmci.common.testcases.AbstractClass;
41import compiler.jvmci.common.testcases.AbstractClassExtender;
42import compiler.jvmci.common.testcases.DoNotImplementInterface;
43import compiler.jvmci.common.testcases.MultipleImplementer1;
44import compiler.jvmci.common.testcases.MultipleImplementersInterface;
45import compiler.jvmci.common.testcases.SingleImplementerInterface;
46import jdk.test.lib.Asserts;
47import jdk.test.lib.Utils;
48import jdk.vm.ci.hotspot.CompilerToVMHelper;
49import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
50
51import java.util.HashSet;
52import java.util.Set;
53import java.util.stream.Stream;
54
55public 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                .lookupTypeHelper(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}
110