1 /* 2 * Copyright (c) 2019, 2020, 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 8225193 27 * @requires os.family != "windows" 28 * @library /test/lib 29 * @run main RemovingUnixDomainSocketTest 30 */ 31 32 import java.io.File; 33 import java.io.IOException; 34 import java.nio.file.Path; 35 import java.util.concurrent.TimeUnit; 36 37 import jdk.test.lib.Utils; 38 import jdk.test.lib.apps.LingeredApp; 39 import jdk.test.lib.JDKToolLauncher; 40 import jdk.test.lib.process.OutputAnalyzer; 41 import jdk.test.lib.process.ProcessTools; 42 43 public class RemovingUnixDomainSocketTest { 44 45 // timeout (in seconds) 46 private static final long timeout = Utils.adjustTimeout(60); 47 runJCmd(long pid)48 private static void runJCmd(long pid) throws InterruptedException, IOException { 49 JDKToolLauncher jcmd = JDKToolLauncher.createUsingTestJDK("jcmd"); 50 jcmd.addVMArgs(Utils.getFilteredTestJavaOpts("-showversion")); 51 jcmd.addToolArg(Long.toString(pid)); 52 jcmd.addToolArg("VM.version"); 53 54 Process jcmdProc = ProcessTools.startProcess("jcmd", new ProcessBuilder(jcmd.getCommand())); 55 56 OutputAnalyzer out = new OutputAnalyzer(jcmdProc); 57 58 if (!jcmdProc.waitFor(timeout, TimeUnit.SECONDS)) { 59 log("jcmd is still running after " + timeout + " seconds, terminating..."); 60 jcmdProc.destroy(); 61 jcmdProc.waitFor(); 62 } 63 64 log("jcmd stdout: [" + out.getStdout() + "];\n" + 65 "jcmd stderr: [" + out.getStderr() + "]\n" + 66 "jcmd exitValue = " + out.getExitValue()); 67 68 out.shouldHaveExitValue(0); 69 out.stderrShouldBeEmptyIgnoreVMWarnings(); 70 } 71 main(String... args)72 public static void main(String... args) throws Exception { 73 LingeredApp app = null; 74 try { 75 app = LingeredApp.startApp(); 76 77 // Access to Attach Listener 78 runJCmd(app.getPid()); 79 80 // Remove unix domain socket file 81 File sockFile = Path.of(System.getProperty("java.io.tmpdir"), 82 ".java_pid" + app.getPid()) 83 .toFile(); 84 log("Remove " + sockFile.toString()); 85 sockFile.delete(); 86 87 // Access to Attach Listener again 88 runJCmd(app.getPid()); 89 } finally { 90 LingeredApp.stopApp(app); 91 } 92 } 93 log(Object s)94 static void log(Object s) { 95 System.out.println(String.valueOf(s)); 96 } 97 } 98