GetClassInitializerTest.java revision 9287:40bd4478a362 
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 (os.simpleArch == "x64" | os.simpleArch == "sparcv9") & os.arch != "aarch64"
28 * @library / /testlibrary /../../test/lib
29 * @compile ../common/CompilerToVMHelper.java
30 * @build compiler.jvmci.compilerToVM.GetClassInitializerTest
31 * @run main ClassFileInstaller jdk.vm.ci.hotspot.CompilerToVMHelper
32 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockExperimentalVMOptions
33 *     -XX:+EnableJVMCI compiler.jvmci.compilerToVM.GetClassInitializerTest
34 */
35
36package compiler.jvmci.compilerToVM;
37
38import compiler.jvmci.common.testcases.AbstractClass;
39import compiler.jvmci.common.testcases.AbstractClassExtender;
40import compiler.jvmci.common.testcases.DoNotExtendClass;
41import compiler.jvmci.common.testcases.MultipleImplementersInterfaceExtender;
42import compiler.jvmci.common.testcases.SingleImplementer;
43import compiler.jvmci.common.testcases.SingleImplementerInterface;
44import java.util.HashSet;
45import java.util.Set;
46import jdk.vm.ci.hotspot.CompilerToVMHelper;
47import jdk.vm.ci.hotspot.HotSpotResolvedJavaMethod;
48import jdk.vm.ci.hotspot.HotSpotResolvedObjectType;
49import jdk.test.lib.Asserts;
50import jdk.test.lib.Utils;
51
52public class GetClassInitializerTest {
53
54    public static void main(String args[]) {
55        GetClassInitializerTest test = new GetClassInitializerTest();
56        for (TestCase tcase : createTestCases()) {
57            test.runTest(tcase);
58        }
59    }
60
61    private static Set<TestCase> createTestCases() {
62        Set<TestCase> result = new HashSet<>();
63        // a simple class with initializer
64        result.add(new TestCase(SingleImplementer.class, true));
65        // an interface with initializer
66        result.add(new TestCase(SingleImplementerInterface.class, true));
67        // an abstract class with initializer
68        result.add(new TestCase(AbstractClass.class, true));
69        // a class without initializer, extending class with initializer
70        result.add(new TestCase(AbstractClassExtender.class, false));
71        // an interface without initializer
72        result.add(new TestCase(MultipleImplementersInterfaceExtender.class, false));
73        // a class without initializer
74        result.add(new TestCase(DoNotExtendClass.class, false));
75        return result;
76    }
77
78    private void runTest(TestCase tcase) {
79        System.out.println(tcase);
80        String className = tcase.holder.getName();
81        HotSpotResolvedObjectType resolvedClazz = CompilerToVMHelper
82                .lookupType(Utils.toJVMTypeSignature(tcase.holder),
83                        getClass(), /* resolve = */ true);
84        HotSpotResolvedJavaMethod initializer = CompilerToVMHelper
85                .getClassInitializer(resolvedClazz);
86        if (tcase.isPositive) {
87            Asserts.assertNotNull(initializer, "Couldn't get initializer for "
88                    + className);
89            Asserts.assertEQ(initializer.getName(), "<clinit>",
90                    "Unexpected initializer name for " + className);
91        } else {
92            Asserts.assertNull(initializer, "Unexpected: found initializer for "
93                    + className);
94        }
95    }
96
97    private static class TestCase {
98        public final Class<?> holder;
99        public final boolean isPositive;
100
101        public TestCase(Class<?> clazz, boolean isPositive) {
102            this.holder = clazz;
103            this.isPositive = isPositive;
104        }
105
106        @Override
107        public String toString() {
108            return "CASE: clazz=" + holder.getName()
109                    + ", isPositive=" + isPositive;
110        }
111    }
112}
113