1 /*
   2  * Copyright (c) 1997, 2005, 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    @summary BufferedReader should throw an OutOfMemoryError when the
  26             read-ahead limit is very large
  27    @bug 6350733
  28    @build BigMark
  29    @run main/othervm BigMark
  30 */
  31 
  32 import java.io.*;
  33 
  34 
  35 public class BigMark {
  36 
  37     public static void main(String[] args) throws IOException {
  38         String line;
  39         int i = 0;
  40         String dir = System.getProperty("test.src", ".");
  41         BufferedReader br
  42             = new BufferedReader(new FileReader(new File(dir, "BigMark.java")), 100);
  43 
  44         br.mark(200);
  45         line = br.readLine();
  46         System.err.println(i + ": " + line);
  47         i++;
  48 
  49         try {
  50             // BR.fill() call to new char[Integer.MAX_VALUE] should succeed
  51             br.mark(Integer.MAX_VALUE);
  52             line = br.readLine();
  53         } catch (OutOfMemoryError x) {
  54             x.printStackTrace();
  55             throw x;
  56         }
  57         System.out.println("OutOfMemoryError not thrown as expected");
  58     }
  59 
  60 }