ResolveConstantInPoolTest.java revision 11707:ad7af1afda7a 
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/*
26 * @test
27 * @bug 8136421
28 * @requires (vm.simpleArch == "x64" | vm.simpleArch == "sparcv9" | vm.simpleArch == "aarch64")
29 * @library /testlibrary /test/lib /
30 * @library ../common/patches
31 * @modules java.base/jdk.internal.misc
32 *          java.base/jdk.internal.reflect
33 *          java.base/jdk.internal.org.objectweb.asm
34 *          jdk.vm.ci/jdk.vm.ci.hotspot
35 *          jdk.vm.ci/jdk.vm.ci.runtime
36 *          jdk.vm.ci/jdk.vm.ci.meta
37 *
38 * @build jdk.vm.ci/jdk.vm.ci.hotspot.CompilerToVMHelper
39 * @build sun.hotspot.WhiteBox
40 *        compiler.jvmci.compilerToVM.ResolveConstantInPoolTest
41 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
42 *                                sun.hotspot.WhiteBox$WhiteBoxPermission
43 * @run main/othervm -Xbootclasspath/a:.
44 *                   -XX:+UnlockExperimentalVMOptions -XX:+EnableJVMCI
45 *                   -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
46 *                   compiler.jvmci.compilerToVM.ResolveConstantInPoolTest
47 */
48
49package compiler.jvmci.compilerToVM;
50
51import compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes;
52import compiler.jvmci.compilerToVM.ConstantPoolTestCase.Validator;
53import compiler.jvmci.compilerToVM.ConstantPoolTestsHelper.DummyClasses;
54import jdk.test.lib.Asserts;
55import jdk.vm.ci.hotspot.CompilerToVMHelper;
56import jdk.vm.ci.meta.ConstantPool;
57
58import java.lang.invoke.MethodHandle;
59import java.lang.invoke.MethodType;
60import java.util.HashMap;
61import java.util.Map;
62
63import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODHANDLE;
64import static compiler.jvmci.compilerToVM.ConstantPoolTestCase.ConstantTypes.CONSTANT_METHODTYPE;
65
66/**
67 * Test for {@code jdk.vm.ci.hotspot.CompilerToVM.resolveConstantInPool} method
68 */
69public class ResolveConstantInPoolTest {
70
71    private static final String NOT_NULL_MSG
72            = "Object returned by resolveConstantInPool method should not be null";
73
74    public static void main(String[] args) throws Exception {
75        Map<ConstantTypes, Validator> typeTests = new HashMap<>();
76        typeTests.put(CONSTANT_METHODHANDLE, ResolveConstantInPoolTest::validateMethodHandle);
77        typeTests.put(CONSTANT_METHODTYPE, ResolveConstantInPoolTest::validateMethodType);
78        ConstantPoolTestCase testCase = new ConstantPoolTestCase(typeTests);
79        testCase.test();
80        // The next "Class.forName" and repeating "testCase.test()"
81        // are here for the following reason.
82        // The first test run is without dummy class initialization,
83        // which means no constant pool cache exists.
84        // The second run is with initialized class (with constant pool cache available).
85        // Some CompilerToVM methods require different input
86        // depending on whether CP cache exists or not.
87        for (DummyClasses dummy : DummyClasses.values()) {
88            Class.forName(dummy.klass.getName());
89        }
90        testCase.test();
91    }
92
93    private static void validateMethodHandle(ConstantPool constantPoolCTVM,
94                                             ConstantTypes cpType,
95                                             DummyClasses dummyClass,
96                                             int index) {
97        Object constantInPool = CompilerToVMHelper.resolveConstantInPool(constantPoolCTVM, index);
98        String msg = String.format("%s for index %d", NOT_NULL_MSG, index);
99        Asserts.assertNotNull(constantInPool, msg);
100        if (!(constantInPool instanceof MethodHandle)) {
101            msg = String.format("Wrong constant pool entry accessed by index"
102                                        + " %d: %s, but should be subclass of %s",
103                                index,
104                                constantInPool.getClass(),
105                                MethodHandle.class.getName());
106            throw new AssertionError(msg);
107        }
108    }
109
110    private static void validateMethodType(ConstantPool constantPoolCTVM,
111                                           ConstantTypes cpType,
112                                           DummyClasses dummyClass,
113                                           int index) {
114        Object constantInPool = CompilerToVMHelper.resolveConstantInPool(constantPoolCTVM, index);
115        String msg = String.format("%s for index %d", NOT_NULL_MSG, index);
116        Asserts.assertNotNull(constantInPool, msg);
117        Class mtToVerify = constantInPool.getClass();
118        Class mtToRefer = MethodType.class;
119        msg = String.format("Wrong method type class accessed by"
120                                    + " constant pool index %d",
121                            index);
122        Asserts.assertEQ(mtToRefer, mtToVerify, msg);
123    }
124}
125