1 /*
   2  * Copyright (c) 2002, 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 4369826
  27  * @summary Process with lots of output should not crash VM
  28  * @author kladko
  29  */
  30 
  31 import java.io.File;
  32 
  33 public class LotsOfOutput {
  34     static final String CAT = "/usr/bin/cat";
  35 
  36     public static void main(String[] args) throws Exception{
  37         if (File.separatorChar == '\\' ||                // Windows
  38                                 !new File(CAT).exists()) // no cat
  39             return;
  40         Process p = Runtime.getRuntime().exec(CAT + " /dev/zero");
  41         long initMemory = Runtime.getRuntime().totalMemory();
  42         for (int i=1; i< 10; i++) {
  43             Thread.sleep(100);
  44             if (Runtime.getRuntime().totalMemory() > initMemory + 1000000)
  45                 throw new Exception("Process consumes memory.");
  46         }
  47 
  48     }
  49 }