1 /* 2 * Copyright (c) 2002, 2010, 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 /* @test 25 * @bug 4750978 26 * @run main/othervm/timeout=300 ExecWithDir 27 * @summary Ensure that we can fork-and-exec repeatedly when a new working 28 * directory is specified 29 */ 30 31 import java.io.File; 32 33 public class ExecWithDir { 34 35 private static final int N = 500; 36 37 public static void main(String args[]) throws Exception { 38 if (! UnixCommands.isUnix) { 39 System.out.println("For UNIX only"); 40 return; 41 } 42 UnixCommands.ensureCommandsAvailable("true"); 43 44 final String trueCmd = UnixCommands.findCommand("true"); 45 File dir = new File("."); 46 for (int i = 1; i <= N; i++) { 47 System.out.print(i); 48 System.out.print(" e"); 49 Process p = Runtime.getRuntime().exec(trueCmd, null, dir); 50 System.out.print('w'); 51 int s = p.waitFor(); 52 System.out.println("x " + s); 53 if (s != 0) throw new Error("Unexpected return code " + s); 54 55 // Avoid "Too many open files" 56 p.getInputStream().close(); 57 p.getOutputStream().close(); 58 p.getErrorStream().close(); 59 } 60 } 61 }