| /* |
| * Copyright (c) 2019, 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. |
| */ |
| |
| import jdk.internal.module.ModuleInfoWriter; |
| import jdk.test.lib.JDKToolFinder; |
| import jdk.test.lib.process.ProcessTools; |
| import jdk.test.lib.util.JarUtils; |
| import sun.tools.common.ProcessHelper; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.lang.module.ModuleDescriptor; |
| import java.nio.file.FileSystems; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.util.ArrayList; |
| import java.util.LinkedList; |
| import java.util.List; |
| import java.util.jar.Attributes; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarOutputStream; |
| import java.util.jar.Manifest; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| |
| /* |
| * @test |
| * @bug 8205654 |
| * @summary Unit test for sun.tools.ProcessHelper class. The test launches Java processes with different Java options |
| * and checks that sun.tools.ProcessHelper.getMainClass(pid) method returns a correct main class. return a . |
| * |
| * @requires os.family == "linux" |
| * @library /test/lib |
| * @modules jdk.jcmd/sun.tools.common |
| * java.base/jdk.internal.module |
| * @build test.TestProcess |
| * @run main/othervm TestProcessHelper |
| */ |
| public class TestProcessHelper { |
| |
| private ProcessHelper PROCESS_HELPER = ProcessHelper.platformProcessHelper(); |
| |
| private static final String TEST_PROCESS_MAIN_CLASS_NAME = "TestProcess"; |
| private static final String TEST_PROCESS_MAIN_CLASS_PACKAGE = "test"; |
| private static final String TEST_PROCESS_MAIN_CLASS = TEST_PROCESS_MAIN_CLASS_PACKAGE + "." |
| + TEST_PROCESS_MAIN_CLASS_NAME; |
| private static final Path TEST_CLASSES = FileSystems.getDefault().getPath(System.getProperty("test.classes")); |
| private static final Path USER_DIR = FileSystems.getDefault().getPath(System.getProperty("user.dir", ".")); |
| private static final Path TEST_MODULES = USER_DIR.resolve("testmodules"); |
| private static final String JAVA_PATH = JDKToolFinder.getJDKTool("java"); |
| private static final Path TEST_CLASS = TEST_CLASSES.resolve(TEST_PROCESS_MAIN_CLASS_PACKAGE) |
| .resolve(TEST_PROCESS_MAIN_CLASS_NAME + ".class"); |
| |
| private static final String[] CP_OPTIONS = {"-cp", "-classpath", "--class-path"}; |
| private static final String[][] VM_ARGS = {{}, {"-Dtest1=aaa"}, {"-Dtest1=aaa", "-Dtest2=bbb ccc"}}; |
| private static final String[][] ARGS = {{}, {"param1"}, {"param1", "param2"}}; |
| private static final String[] MP_OPTIONS = {"-p", "--module-path"}; |
| private static final String[] MODULE_OPTIONS = {"-m", "--module", "--module="}; |
| private static final String JAR_OPTION = "-jar"; |
| private static final String MODULE_NAME = "module1"; |
| private static final String[][] EXTRA_MODULAR_OPTIONS = {null, |
| {"--add-opens", "java.base/java.net=ALL-UNNAMED"}, |
| {"--add-exports", "java.base/java.net=ALL-UNNAMED"}, |
| {"--add-reads", "java.base/java.net=ALL-UNNAMED"}, |
| {"--add-modules", "java.management"}, |
| {"--limit-modules", "java.management"}, |
| {"--upgrade-module-path", "test"}}; |
| |
| private static final String[] PATCH_MODULE_OPTIONS = {"--patch-module", null}; |
| |
| public static void main(String[] args) throws Exception { |
| new TestProcessHelper().runTests(); |
| } |
| |
| public void runTests() throws Exception { |
| testClassPath(); |
| testJar(); |
| testModule(); |
| } |
| |
| // Test Java processes that are started with -classpath, -cp, or --class-path options |
| // and with different combinations of VM and program args. |
| private void testClassPath() throws Exception { |
| for (String cp : CP_OPTIONS) { |
| for (String[] vma : VM_ARGS) { |
| for (String[] arg : ARGS) { |
| for (String[] modularOptions : EXTRA_MODULAR_OPTIONS) { |
| List<String> cmd = new LinkedList<>(); |
| cmd.add(JAVA_PATH); |
| cmd.add(cp); |
| cmd.add(TEST_CLASSES.toAbsolutePath().toString()); |
| for (String v : vma) { |
| cmd.add(v); |
| } |
| if (modularOptions != null) { |
| cmd.add(modularOptions[0]); |
| cmd.add(modularOptions[1]); |
| } |
| cmd.add(TEST_PROCESS_MAIN_CLASS); |
| for (String a : arg) { |
| cmd.add(a); |
| } |
| testProcessHelper(cmd, TEST_PROCESS_MAIN_CLASS); |
| } |
| } |
| } |
| } |
| } |
| |
| // Test Java processes that are started with -jar option |
| // and with different combinations of VM and program args. |
| private void testJar() throws Exception { |
| File jarFile = prepareJar(); |
| for (String[] vma : VM_ARGS) { |
| for (String[] arg : ARGS) { |
| List<String> cmd = new LinkedList<>(); |
| cmd.add(JAVA_PATH); |
| for (String v : vma) { |
| cmd.add(v); |
| } |
| cmd.add(JAR_OPTION); |
| cmd.add(jarFile.getAbsolutePath()); |
| for (String a : arg) { |
| cmd.add(a); |
| } |
| testProcessHelper(cmd, jarFile.getAbsolutePath()); |
| } |
| } |
| |
| } |
| |
| // Test Java processes that are started with -m or --module options |
| // and with different combination of VM and program args. |
| private void testModule() throws Exception { |
| prepareModule(); |
| for (String mp : MP_OPTIONS) { |
| for (String m : MODULE_OPTIONS) { |
| for (String[] vma : VM_ARGS) { |
| for (String[] arg : ARGS) { |
| for(String patchModuleOption : PATCH_MODULE_OPTIONS) { |
| List<String> cmd = new LinkedList<>(); |
| cmd.add(JAVA_PATH); |
| cmd.add(mp); |
| cmd.add(TEST_MODULES.toAbsolutePath().toString()); |
| if (patchModuleOption != null) { |
| cmd.add(patchModuleOption); |
| cmd.add(MODULE_NAME + "=" + TEST_MODULES.toAbsolutePath().toString()); |
| } |
| for (String v : vma) { |
| cmd.add(v); |
| } |
| if (m.endsWith("=")) { |
| cmd.add(m + MODULE_NAME + "/" + TEST_PROCESS_MAIN_CLASS); |
| } else { |
| cmd.add(m); |
| cmd.add(MODULE_NAME + "/" + TEST_PROCESS_MAIN_CLASS); |
| } |
| for (String a : arg) { |
| cmd.add(a); |
| } |
| testProcessHelper(cmd, MODULE_NAME + "/" + TEST_PROCESS_MAIN_CLASS); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| private void checkMainClass(Process p, String expectedMainClass) { |
| String mainClass = PROCESS_HELPER.getMainClass(Long.toString(p.pid())); |
| // getMainClass() may return null, e.g. due to timing issues. |
| // Attempt some limited retries. |
| if (mainClass == null) { |
| System.err.println("Main class returned by ProcessHelper was null."); |
| // sleep time doubles each round, altogether, wait no longer than 1 sec |
| final int MAX_RETRIES = 10; |
| int retrycount = 0; |
| long sleepms = 1; |
| while (retrycount < MAX_RETRIES && mainClass == null) { |
| System.err.println("Retry " + retrycount + ", sleeping for " + sleepms + "ms."); |
| try { |
| Thread.sleep(sleepms); |
| } catch (InterruptedException e) { |
| // ignore |
| } |
| mainClass = PROCESS_HELPER.getMainClass(Long.toString(p.pid())); |
| retrycount++; |
| sleepms *= 2; |
| } |
| } |
| p.destroyForcibly(); |
| if (!expectedMainClass.equals(mainClass)) { |
| throw new RuntimeException("Main class is wrong: " + mainClass); |
| } |
| } |
| |
| private void testProcessHelper(List<String> args, String expectedValue) throws Exception { |
| ProcessBuilder pb = new ProcessBuilder(args); |
| String cmd = pb.command().stream().collect(Collectors.joining(" ")); |
| System.out.println("Starting the process:" + cmd); |
| Process p = ProcessTools.startProcess("test", pb); |
| if (!p.isAlive()) { |
| throw new RuntimeException("Cannot start the process: " + cmd); |
| } |
| checkMainClass(p, expectedValue); |
| } |
| |
| private File prepareJar() throws Exception { |
| Path jarFile = USER_DIR.resolve("testprocess.jar"); |
| Manifest manifest = createManifest(); |
| JarUtils.createJarFile(jarFile, manifest, TEST_CLASSES, TEST_CLASS); |
| return jarFile.toFile(); |
| } |
| |
| private void prepareModule() throws Exception { |
| TEST_MODULES.toFile().mkdirs(); |
| Path moduleJar = TEST_MODULES.resolve("mod1.jar"); |
| ModuleDescriptor md = createModuleDescriptor(); |
| createModuleJarFile(moduleJar, md, TEST_CLASSES, TEST_CLASS); |
| } |
| |
| private Manifest createManifest() { |
| Manifest manifest = new Manifest(); |
| manifest.getMainAttributes().put(Attributes.Name.MANIFEST_VERSION, "1.0"); |
| manifest.getMainAttributes().put(Attributes.Name.MAIN_CLASS, TEST_PROCESS_MAIN_CLASS); |
| return manifest; |
| } |
| |
| private ModuleDescriptor createModuleDescriptor() { |
| ModuleDescriptor.Builder builder |
| = ModuleDescriptor.newModule(MODULE_NAME).requires("java.base"); |
| return builder.build(); |
| } |
| |
| private static void createModuleJarFile(Path jarfile, ModuleDescriptor md, Path dir, Path... files) |
| throws IOException { |
| |
| Path parent = jarfile.getParent(); |
| if (parent != null) { |
| Files.createDirectories(parent); |
| } |
| |
| List<Path> entries = findAllRegularFiles(dir, files); |
| |
| try (OutputStream out = Files.newOutputStream(jarfile); |
| JarOutputStream jos = new JarOutputStream(out)) { |
| if (md != null) { |
| JarEntry je = new JarEntry("module-info.class"); |
| jos.putNextEntry(je); |
| ModuleInfoWriter.write(md, jos); |
| jos.closeEntry(); |
| } |
| |
| for (Path entry : entries) { |
| String name = toJarEntryName(entry); |
| jos.putNextEntry(new JarEntry(name)); |
| Files.copy(dir.resolve(entry), jos); |
| jos.closeEntry(); |
| } |
| } |
| } |
| |
| private static String toJarEntryName(Path file) { |
| Path normalized = file.normalize(); |
| return normalized.subpath(0, normalized.getNameCount()) |
| .toString() |
| .replace(File.separatorChar, '/'); |
| } |
| |
| private static List<Path> findAllRegularFiles(Path dir, Path[] files) throws IOException { |
| List<Path> entries = new ArrayList<>(); |
| for (Path file : files) { |
| try (Stream<Path> stream = Files.find(dir.resolve(file), Integer.MAX_VALUE, |
| (p, attrs) -> attrs.isRegularFile())) { |
| stream.map(dir::relativize) |
| .forEach(entries::add); |
| } |
| } |
| return entries; |
| } |
| |
| } |