1 /* 2 * Copyright (c) 2017, 2018, 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 * @summary Verify that upgradeable modules are not hashed in java.base 27 * whereas non-upgradeable modules are. 28 * @modules java.base/jdk.internal.module 29 * @run main UpgradeableModules 30 */ 31 32 import jdk.internal.module.ModuleHashes; 33 import jdk.internal.module.ModuleReferenceImpl; 34 35 import java.lang.module.ModuleFinder; 36 import java.lang.module.ModuleReference; 37 import java.lang.module.ResolvedModule; 38 import java.util.HashSet; 39 import java.util.List; 40 import java.util.Optional; 41 import java.util.Set; 42 import java.util.stream.Collectors; 43 44 public class UpgradeableModules { 45 private static final List<String> UPGRADEABLE_MODULES = 46 List.of("java.compiler", 47 "jdk.aot", 48 "jdk.internal.vm.compiler", 49 "jdk.internal.vm.compiler.management"); 50 main(String... args)51 public static void main(String... args) { 52 Set<String> hashedModules = hashedModules(); 53 if (hashedModules.isEmpty()) 54 return; 55 56 if (UPGRADEABLE_MODULES.stream().anyMatch(hashedModules::contains)) { 57 throw new RuntimeException("upgradeable modules are hashed: " + 58 UPGRADEABLE_MODULES.stream() 59 .filter(hashedModules::contains) 60 .collect(Collectors.joining(" "))); 61 } 62 63 Set<String> nonUpgradeableModules = 64 ModuleFinder.ofSystem().findAll().stream() 65 .map(mref -> mref.descriptor().name()) 66 .filter(mn -> !UPGRADEABLE_MODULES.contains(mn)) 67 .collect(Collectors.toSet()); 68 69 if (nonUpgradeableModules.stream().anyMatch(mn -> !hashedModules.contains(mn))) { 70 throw new RuntimeException("non-upgradeable modules are not hashed: " + 71 nonUpgradeableModules.stream() 72 .filter(mn -> !hashedModules.contains(mn)) 73 .collect(Collectors.joining(" "))); 74 } 75 } 76 hashedModules()77 private static Set<String> hashedModules() { 78 Optional<ResolvedModule> resolvedModule = ModuleLayer.boot() 79 .configuration() 80 .findModule("java.base"); 81 assert resolvedModule.isPresent(); 82 ModuleReference mref = resolvedModule.get().reference(); 83 assert mref instanceof ModuleReferenceImpl; 84 ModuleHashes hashes = ((ModuleReferenceImpl) mref).recordedHashes(); 85 if (hashes != null) { 86 Set<String> names = new HashSet<>(hashes.names()); 87 names.add("java.base"); 88 return names; 89 } 90 91 return Set.of(); 92 } 93 } 94