| /* |
| * Copyright (c) 1999, 2001, 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 4180429 |
| @summary Lossage in dup2 if System.in is closed. |
| @run main/othervm Duped |
| */ |
| |
| import java.io.BufferedReader; |
| import java.io.PrintStream; |
| import java.io.InputStreamReader; |
| import java.io.File; |
| |
| public class Duped { |
| |
| public static class Echo { |
| public static void main(String args[]) throws Exception { |
| StringBuffer s = new StringBuffer(); |
| int c; |
| while ((System.in.available() != 0) |
| && ((c = System.in.read()) != -1)) |
| s.append((char)c); |
| System.out.println(s); |
| } |
| } |
| |
| public static void main(String[] args) throws Exception { |
| |
| String command = |
| System.getProperty("java.home") + |
| File.separator + |
| "bin" + |
| File.separator + |
| "java -classpath " + |
| System.getProperty("java.class.path") + |
| " Duped$Echo"; |
| |
| if (args.length == 1 && args[0].equals("-dont")) { |
| /* |
| * To quickly check that this test is working when it is |
| * supposed to, just run it with -dont and it shouldn't |
| * complain at all. |
| */ |
| } else { |
| /* |
| * In normal runs we just close in, and that causes |
| * lossage on fork. |
| */ |
| System.in.close(); |
| } |
| |
| Process p = Runtime.getRuntime().exec(command); |
| PrintStream out = new PrintStream(p.getOutputStream()); |
| out.println(HELLO); |
| out.close(); |
| |
| BufferedReader in = |
| new BufferedReader(new InputStreamReader(p.getInputStream())); |
| String read = in.readLine(); |
| |
| if (!HELLO.equals(read)) { |
| throw new Exception("Failed, read ``" + read + "''"); |
| } |
| } |
| |
| static final String HELLO = "Hello, world!"; |
| |
| } |