GetClassInitializerTest.java revision 11477:a709f2ee79e5 
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 * @test
26 * @bug 8136421
27 * @requires (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64")
28 * @library / /testlibrary /test/lib
29 * @library ../common/patches
30 * @modules java.base/jdk.internal.misc
31 * @modules jdk.vm.ci/jdk.vm.ci.hotspot
32 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
33 * @build compiler.jvmci.compilerToVM.GetClassInitializerTest
34 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
35 *                   compiler.jvmci.compilerToVM.GetClassInitializerTest
36 */
37
38package compiler.jvmci.compilerToVM;
39
40import compiler.jvmci.common.testcases.AbstractClass;
41import compiler.jvmci.common.testcases.AbstractClassExtender;
42import compiler.jvmci.common.testcases.DoNotExtendClass;
43import compiler.jvmci.common.testcases.MultipleImplementersInterfaceExtender;
44import compiler.jvmci.common.testcases.SingleImplementer;
45import compiler.jvmci.common.testcases.SingleImplementerInterface;
46import java.util.HashSet;
47import java.util.Set;
48import jdk.vm.ci.hotspot.CompilerToVMHelper;
49import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
50import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
51import jdk.test.lib.Asserts;
52import jdk.test.lib.Utils;
53
54public class GetClassInitializerTest {
55
56    public static void main(String args[]) {
57        GetClassInitializerTest test = new GetClassInitializerTest();
58        for (TestCase tcase : createTestCases()) {
59            test.runTest(tcase);
60        }
61    }
62
63    private static Set<TestCase> createTestCases() {
64        Set<TestCase> result = new HashSet<>();
65        // a simple class with initializer
66        result.add(new TestCase(SingleImplementer.class, true));
67        // an interface with initializer
68        result.add(new TestCase(SingleImplementerInterface.class, true));
69        // an abstract class with initializer
70        result.add(new TestCase(AbstractClass.class, true));
71        // a class without initializer, extending class with initializer
72        result.add(new TestCase(AbstractClassExtender.class, false));
73        // an interface without initializer
74        result.add(new TestCase(MultipleImplementersInterfaceExtender.class, false));
75        // a class without initializer
76        result.add(new TestCase(DoNotExtendClass.class, false));
77        return result;
78    }
79
80    private void runTest(TestCase tcase) {
81        System.out.println(tcase);
82        String className = tcase.holder.getName();
83        HotSpotResolvedObjectType resolvedClazz = CompilerToVMHelper
84                .lookupType(Utils.toJVMTypeSignature(tcase.holder),
85                        getClass(), /* resolve = */ true);
86        HotSpotResolvedJavaMethod initializer = CompilerToVMHelper
87                .getClassInitializer(resolvedClazz);
88        if (tcase.isPositive) {
89            Asserts.assertNotNull(initializer, "Couldn't get initializer for "
90                    + className);
91            Asserts.assertEQ(initializer.getName(), "<clinit>",
92                    "Unexpected initializer name for " + className);
93        } else {
94            Asserts.assertNull(initializer, "Unexpected: found initializer for "
95                    + className);
96        }
97    }
98
99    private static class TestCase {
100        public final Class<?> holder;
101        public final boolean isPositive;
102
103        public TestCase(Class<?> clazz, boolean isPositive) {
104            this.holder = clazz;
105            this.isPositive = isPositive;
106        }
107
108        @Override
109        public String toString() {
110            return "CASE: clazz=" + holder.getName()
111                    + ", isPositive=" + isPositive;
112        }
113    }
114}
115