1 /* 2 * Copyright (c) 2019, 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 * @library /test/lib 28 * @run main RemovingUnixDomainSocketTest 29 */ 30 31 import java.io.IOException; 32 import java.nio.file.Path; 33 34 import jdk.test.lib.apps.LingeredApp; 35 import jdk.test.lib.JDKToolLauncher; 36 import jdk.test.lib.process.OutputAnalyzer; 37 38 public class RemovingUnixDomainSocketTest { 39 40 private static void runJCmd(long pid) throws InterruptedException, IOException { 41 JDKToolLauncher jcmd = JDKToolLauncher.createUsingTestJDK("jcmd"); 42 jcmd.addToolArg(Long.toString(pid)); 43 jcmd.addToolArg("VM.version"); 44 45 ProcessBuilder pb = new ProcessBuilder(jcmd.getCommand()); 46 Process jcmdProc = pb.start(); 47 48 OutputAnalyzer out = new OutputAnalyzer(jcmdProc); 49 50 jcmdProc.waitFor(); 51 52 System.out.println(out.getStdout()); 53 System.err.println(out.getStderr()); 54 55 out.stderrShouldBeEmpty(); 56 } 57 58 public static void main(String... args) throws Exception { 59 LingeredApp app = null; 60 try { 61 app = LingeredApp.startApp(); 62 63 // Access to Attach Listener 64 runJCmd(app.getPid()); 65 66 // Remove unix domain socket file 67 var sockFile = Path.of(System.getProperty("java.io.tmpdir"), 68 ".java_pid" + app.getPid()) 69 .toFile(); 70 System.out.println("Remove " + sockFile.toString()); 71 sockFile.delete(); 72 73 // Access to Attach Listener again 74 runJCmd(app.getPid()); 75 } finally { 76 LingeredApp.stopApp(app); 77 } 78 } 79 80 }