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.GetImplementorTest 31 * @run main ClassFileInstaller 32 * jdk.vm.ci.hotspot.CompilerToVMHelper 33 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockExperimentalVMOptions 34 * -XX:+EnableJVMCI compiler.jvmci.compilerToVM.GetImplementorTest 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.DoNotExtendClass; 43 import compiler.jvmci.common.testcases.MultipleImplementer1; 44 import compiler.jvmci.common.testcases.MultipleImplementer2; 45 import compiler.jvmci.common.testcases.MultipleImplementersInterface; 46 import compiler.jvmci.common.testcases.SingleImplementer; 47 import compiler.jvmci.common.testcases.SingleImplementerInterface; 48 import compiler.jvmci.common.testcases.SingleSubclass; 49 import compiler.jvmci.common.testcases.SingleSubclassedClass; 50 import java.util.HashSet; 51 import java.util.Set; 52 import java.util.stream.Stream; 53 import jdk.vm.ci.hotspot.CompilerToVMHelper; 54 import jdk.vm.ci.hotspot.HotSpotResolvedObjectTypeImpl; 55 import jdk.test.lib.Asserts; 56 import jdk.test.lib.Utils; 57 58 public class GetImplementorTest { 59 public static void main(String args[]) { 60 GetImplementorTest test = new GetImplementorTest(); 61 for (TestCase tcase : createTestCases()) { 62 test.runTest(tcase); 63 } 64 } 65 66 private static Set<TestCase> createTestCases() { 67 Set<TestCase> result = new HashSet<>(); 68 Stream.of( 69 SingleSubclass.class, 70 AbstractClassExtender.class, 71 MultipleImplementer2.class, 72 MultipleImplementer1.class, 73 MultipleImplementersInterface.class, 74 DoNotImplementInterface.class, 75 DoNotExtendClass.class, 76 AbstractClass.class, 77 SingleSubclassedClass.class) 78 .forEach(Utils::ensureClassIsLoaded); 79 // an interface with single class implementing it 80 result.add(new TestCase(SingleImplementerInterface.class, 81 SingleImplementer.class)); 82 /* an interface with multiple implementers. According to getImplementor 83 javadoc, an itself should be returned in case of more than one 84 implementor 85 */ 86 result.add(new TestCase(MultipleImplementersInterface.class, 87 MultipleImplementersInterface.class)); 88 // an interface with no implementors 89 result.add(new TestCase(DoNotImplementInterface.class, null)); 90 // an abstract class with extender class 91 result.add(new TestCase(AbstractClass.class, null)); 92 // a simple class, which is not extended 93 result.add(new TestCase(DoNotExtendClass.class, null)); 94 // a usual class, which is extended 95 result.add(new TestCase(SingleSubclassedClass.class, null)); 96 return result; 97 } 98 99 private void runTest(TestCase tcase) { 100 System.out.println(tcase); 101 HotSpotResolvedObjectTypeImpl resolvedIface = CompilerToVMHelper 102 .lookupType(Utils.toJVMTypeSignature(tcase.anInterface), 103 getClass(), /* resolve = */ true); 104 HotSpotResolvedObjectTypeImpl resolvedImplementer = CompilerToVMHelper 105 .getImplementor(resolvedIface); 106 HotSpotResolvedObjectTypeImpl resolvedExpected = null; 107 if (tcase.expectedImplementer != null) { 108 resolvedExpected = CompilerToVMHelper.lookupType(Utils 109 .toJVMTypeSignature(tcase.expectedImplementer), 110 getClass(), /* resolve = */ true); 111 } 112 Asserts.assertEQ(resolvedImplementer, resolvedExpected, 113 "Unexpected implementer for " + tcase.anInterface.getName()); 114 } 115 116 private static class TestCase { 117 public final Class<?> anInterface; 118 public final Class<?> expectedImplementer; 119 120 public TestCase(Class<?> iface, Class<?> expectedImplementer) { 121 this.anInterface = iface; 122 this.expectedImplementer = expectedImplementer; 123 } 124 125 @Override 126 public String toString() { 127 return String.format("CASE: interface=%s, expected=%s", 128 anInterface.getName(), 129 expectedImplementer == null 130 ? null 131 : expectedImplementer.getName()); 132 } 133 } 134 }