1 /* 2 * Copyright (c) 2013, 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 import jdk.testlibrary.OutputAnalyzer; 26 import jdk.testlibrary.Utils; 27 28 import java.io.IOException; 29 import java.net.ServerSocket; 30 import java.util.logging.Logger; 31 32 /** 33 * This test used for test development and it is not meant to be run by JTReg. 34 * <p/> 35 * This test exercises a retry mechanism to avoid a test failure because of 36 * starting the VM on a busy jmxremote.port. 37 * <p/> 38 * To run this test you'll need to add this VM option: -Dtest.jdk=<path-to-jdk> 39 */ 40 public class PortAlreadyInUseTest extends DynamicLauncher { 41 42 ServerSocket socket; 43 final Logger log = Logger.getLogger("PortAlreadyInUse"); 44 45 protected void go() throws Exception { 46 jmxPort = Utils.getFreePort(); 47 occupyPort(); 48 49 log.info("Attempting to start a VM using the same port."); 50 OutputAnalyzer out = this.runVM(); 51 out.shouldContain("Port already in use"); 52 log.info("Failed as expected."); 53 54 log.info("Trying again using retries."); 55 this.run(); 56 } 57 58 private void occupyPort() throws IOException { 59 socket = new ServerSocket(jmxPort); 60 log.info("Occupying port " + String.valueOf(jmxPort)); 61 } 62 63 protected String[] options() { 64 String[] options = { 65 "-Dcom.sun.management.jmxremote.authenticate=false", 66 "-Dcom.sun.management.jmxremote.ssl=false", 67 "-Dcom.sun.management.jmxremote=true", 68 "-Dcom.sun.management.jmxremote.port=" + String.valueOf(jmxPort), 69 "-version" 70 }; 71 return options; 72 } 73 74 public static void main(String[] args) throws Exception { 75 PortAlreadyInUseTest test = new PortAlreadyInUseTest(); 76 test.go(); 77 } 78 79 }