| /* |
| * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /** |
| * @test |
| * @bug 8049365 |
| * @summary Tests the JDI and JDWP update for modules |
| * |
| * @run build TestScaffold VMConnection TargetListener TargetAdapter |
| * @run compile -g ModulesTest.java |
| * @run driver ModulesTest |
| */ |
| import com.sun.jdi.*; |
| import com.sun.jdi.event.*; |
| import com.sun.jdi.request.*; |
| |
| import java.util.*; |
| |
| /********** target program **********/ |
| |
| class ModulesTarg { |
| |
| public static void main(String[] args){ |
| System.out.println("Goodbye from ModulesTarg!"); |
| } |
| } |
| |
| /********** test program **********/ |
| |
| public class ModulesTest extends TestScaffold { |
| static final String FailPrefix = "ModulesTest: failed: "; |
| |
| private static ModuleReference bootUnnamedModule = null; |
| private static ModuleReference appUnnamedModule = null; |
| private static ModuleReference extUnnamedModule = null; |
| |
| private ReferenceType targetClass; |
| private List<ModuleReference> modules; |
| |
| |
| ModulesTest (String args[]) { |
| super(args); |
| } |
| |
| public static void main(String[] args) throws Exception { |
| new ModulesTest(args).startTests(); |
| } |
| |
| /********** test core **********/ |
| |
| private boolean reftypeSanityCheck(ModuleReference module, ReferenceType type) { |
| ModuleReference other = type.module(); |
| if (other == null) { |
| testFailed = true; |
| println(FailPrefix + "a ModuleReference should never be null #1"); |
| return false; |
| } |
| // Sanity checks: make sure there is no crash or exception |
| String otherName = other.name(); |
| return true; |
| } |
| |
| private void checkLoaderDefinedClasses(ModuleReference module, ClassLoaderReference loader) { |
| String moduleName = module.name(); |
| List<ReferenceType> definedClasses = loader.definedClasses(); |
| boolean origModuleWasObserved = false; |
| |
| for (ReferenceType type: definedClasses) { |
| ClassLoaderReference otherLoader = type.classLoader(); |
| if (!loader.equals(otherLoader)) { |
| testFailed = true; |
| println(FailPrefix + "all classes defined by a ClassLoader" + |
| " should refer to the defining ClassLoader"); |
| return; |
| } |
| if (!reftypeSanityCheck(module, type)) { |
| return; |
| } |
| } |
| } |
| |
| private void checkLoaderVisibleClasses(ModuleReference module, ClassLoaderReference loader) { |
| String moduleName = module.name(); |
| List<ReferenceType> visibleClasses = loader.visibleClasses(); |
| |
| for (ReferenceType type: visibleClasses) { |
| if (!type.isPrepared()) { |
| continue; // Safety: skip unprepared classes |
| } |
| if (!reftypeSanityCheck(module, type)) { |
| return; |
| } |
| } |
| } |
| |
| // Check any ClassLoader except the bootsrtap ClassLoader |
| private void checkClassLoader(ModuleReference module, ClassLoaderReference loader) { |
| checkLoaderDefinedClasses(module, loader); |
| checkLoaderVisibleClasses(module, loader); |
| } |
| |
| // Sanity checks to make sure there are no crashes or exceptions. |
| private void checkModule(ModuleReference module, ModuleReference other, int checkIdx) { |
| if (module == null) { |
| testFailed = true; |
| println(FailPrefix + "a ModuleReference should never be null #2"); |
| return; |
| } |
| String name = module.name(); |
| println("\n--- Check #" + checkIdx); |
| println(" module name: " + name); |
| |
| ClassLoaderReference loader = module.classLoader(); |
| println(" loader: " + loader); |
| |
| if (loader != null) { |
| checkClassLoader(module, loader); |
| String classloaderName = loader.toString(); |
| if (classloaderName.contains("AppClassLoader") && name == null) { |
| if (appUnnamedModule != null) { |
| testFailed = true; |
| println(FailPrefix + "multiple unnamed modules in AppClassLoader"); |
| } |
| appUnnamedModule = module; |
| } |
| if (classloaderName.contains("PlatformClassLoader") && name == null) { |
| if (extUnnamedModule != null) { |
| testFailed = true; |
| println(FailPrefix + "multiple unnamed modules in PlatformClassLoader"); |
| } |
| extUnnamedModule = module; |
| } |
| } else if (name == null) { |
| if (bootUnnamedModule != null) { |
| testFailed = true; |
| println(FailPrefix + "multiple unnamed modules in BootClassLoader"); |
| } |
| bootUnnamedModule = module; |
| } |
| } |
| |
| // Check that the java.lang.String class was loaded by the java.base module. |
| private void checkBaseModule() { |
| List<ReferenceType> clist = vm().classesByName("java.lang.String"); |
| if (clist.size() != 1) { |
| testFailed = true; |
| println(FailPrefix + "just one java.lang.String class is expected" + |
| "but found multiple class instances: " + clist.size()); |
| return; |
| } |
| ModuleReference module = clist.get(0).module(); |
| if (module == null) { |
| testFailed = true; |
| println(FailPrefix + "a ModuleReference should never be null #3"); |
| } |
| if (module.name().compareTo("java.base") != 0) { |
| testFailed = true; |
| println(FailPrefix + "java.lang.String must belong to java.base module"); |
| } |
| } |
| |
| // Check that the unnamed modules of the bootsrtap, application |
| // and platform class loaders were observed. |
| private void checkUnnamedModules() { |
| if (bootUnnamedModule == null) { |
| testFailed = true; |
| println(FailPrefix + "unnamed module of BootClassLoader was not observed"); |
| } |
| if (appUnnamedModule == null) { |
| testFailed = true; |
| println(FailPrefix + "unnamed module of AppClassLoader was not observed"); |
| } |
| if (extUnnamedModule == null) { |
| testFailed = true; |
| println(FailPrefix + "unnamed module of PlatformClassLoader was not observed"); |
| } |
| } |
| |
| protected void runTests() throws Exception { |
| /* |
| * Get to the top of main() to determine targetClass |
| */ |
| BreakpointEvent bpe = startToMain("ModulesTarg"); |
| targetClass = bpe.location().declaringType(); |
| |
| if (!vm().canGetModuleInfo()) { |
| testFailed = true; |
| println(FailPrefix + "vm().canGetModuleInfo() returned false"); |
| } |
| ModuleReference other = targetClass.module(); |
| modules = vm().allModules(); |
| |
| int checkIdx = 0; |
| |
| for (ModuleReference module : modules) { |
| checkModule(module, other, checkIdx++); |
| other = module; |
| } |
| |
| checkBaseModule(); |
| checkUnnamedModules(); |
| |
| /* |
| * resume the target until end |
| */ |
| listenUntilVMDisconnect(); |
| |
| /* |
| * deal with results of test |
| * if anything has called failure("foo") testFailed will be true |
| */ |
| if (!testFailed) { |
| println("ModulesTest: passed"); |
| } else { |
| throw new Exception("ModulesTest: some checks failed"); |
| } |
| } |
| } |