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  * @requires os.family != "windows"

    28  * @library /test/lib

    29  * @run main RemovingUnixDomainSocketTest

    30  */

    31 

    32 import java.io.IOException;

    33 import java.nio.file.Path;

    34 

    35 import jdk.test.lib.apps.LingeredApp;

    36 import jdk.test.lib.JDKToolLauncher;

    37 import jdk.test.lib.process.OutputAnalyzer;

    38 

    39 public class RemovingUnixDomainSocketTest {

    40 

    41     private static void runJCmd(long pid) throws InterruptedException, IOException {

    42         JDKToolLauncher jcmd = JDKToolLauncher.createUsingTestJDK("jcmd");

    43         jcmd.addToolArg(Long.toString(pid));

    44         jcmd.addToolArg("VM.version");

    45 

    46         ProcessBuilder pb = new ProcessBuilder(jcmd.getCommand());

    47         Process jcmdProc = pb.start();

    48 

    49         OutputAnalyzer out = new OutputAnalyzer(jcmdProc);

    50 

    51         jcmdProc.waitFor();

    52 

    53         System.out.println(out.getStdout());

    54         System.err.println(out.getStderr());

    55 

    56         out.stderrShouldBeEmpty();

    57     }

    58 

    59     public static void main(String... args) throws Exception {

    60         LingeredApp app = null;

    61         try {

    62             app = LingeredApp.startApp();

    63 

    64             // Access to Attach Listener

    65             runJCmd(app.getPid());

    66 

    67             // Remove unix domain socket file

    68             var sockFile = Path.of(System.getProperty("java.io.tmpdir"),

    69                                    ".java_pid" + app.getPid())

    70                                .toFile();

    71             System.out.println("Remove " + sockFile.toString());

    72             sockFile.delete();

    73 

    74             // Access to Attach Listener again

    75             runJCmd(app.getPid());

    76         } finally {

    77             LingeredApp.stopApp(app);

    78         }

    79     }

    80 

    81 }