--- /dev/null 2019-07-11 20:54:29.954886200 +0900 +++ new/test/hotspot/jtreg/serviceability/attach/RemovingUnixDomainSocketTest.java 2019-07-11 21:01:14.503312487 +0900 @@ -0,0 +1,81 @@ +/* + * 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. + */ + +/* + * @test + * @bug 8225193 + * @requires os.family != "windows" + * @library /test/lib + * @run main RemovingUnixDomainSocketTest + */ + +import java.io.IOException; +import java.nio.file.Path; + +import jdk.test.lib.apps.LingeredApp; +import jdk.test.lib.JDKToolLauncher; +import jdk.test.lib.process.OutputAnalyzer; + +public class RemovingUnixDomainSocketTest { + + private static void runJCmd(long pid) throws InterruptedException, IOException { + JDKToolLauncher jcmd = JDKToolLauncher.createUsingTestJDK("jcmd"); + jcmd.addToolArg(Long.toString(pid)); + jcmd.addToolArg("VM.version"); + + ProcessBuilder pb = new ProcessBuilder(jcmd.getCommand()); + Process jcmdProc = pb.start(); + + OutputAnalyzer out = new OutputAnalyzer(jcmdProc); + + jcmdProc.waitFor(); + + System.out.println(out.getStdout()); + System.err.println(out.getStderr()); + + out.stderrShouldBeEmpty(); + } + + public static void main(String... args) throws Exception { + LingeredApp app = null; + try { + app = LingeredApp.startApp(); + + // Access to Attach Listener + runJCmd(app.getPid()); + + // Remove unix domain socket file + var sockFile = Path.of(System.getProperty("java.io.tmpdir"), + ".java_pid" + app.getPid()) + .toFile(); + System.out.println("Remove " + sockFile.toString()); + sockFile.delete(); + + // Access to Attach Listener again + runJCmd(app.getPid()); + } finally { + LingeredApp.stopApp(app); + } + } + +}