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