1 /*
   2  * Copyright (c) 2018, 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  * @requires os.maxMemory > 2g
  27  * @bug 8206403
  28  * @run testng/othervm -Xmx2g ArraySize
  29  * @summary Check that unacceptable backing array sizes are disallowed.
  30  */
  31 
  32 import java.io.ByteArrayOutputStream;
  33 import org.testng.annotations.Test;
  34 import static org.testng.Assert.*;
  35 
  36 public class ArraySize {
  37     @Test(expectedExceptions = IllegalArgumentException.class)
  38     public static void underflowConstructor() throws Exception {
  39         ByteArrayOutputStream baos = new ByteArrayOutputStream(-1);
  40     }
  41 
  42     @Test(expectedExceptions = IllegalArgumentException.class)
  43     public static void overflowConstructor() throws Exception {
  44         ByteArrayOutputStream baos =
  45             new ByteArrayOutputStream(Integer.MAX_VALUE - 4);
  46     }
  47 
  48     @Test(expectedExceptions = OutOfMemoryError.class)
  49     public static void overflowSize() {
  50         ByteArrayOutputStream baos = new ByteArrayOutputStream();
  51         byte[] b = new byte[(Integer.MAX_VALUE - 3)/2];
  52         baos.write(b, 0, b.length);
  53         baos.write(b, 0, b.length);
  54     }
  55 }