1 /*
   2  * Copyright (c) 2001, 2017, 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 4431503
  27  * @summary Checks if flushBefore(pos) throws an IndexOutOfBoundsException if
  28  *          pos lies in the flushed portion of the stream
  29  */
  30 
  31 import java.io.ByteArrayOutputStream;
  32 import java.io.IOException;
  33 import java.io.OutputStream;
  34 
  35 import javax.imageio.stream.FileCacheImageOutputStream;
  36 import javax.imageio.stream.ImageOutputStream;
  37 import javax.imageio.stream.MemoryCacheImageOutputStream;
  38 
  39 public class FlushBefore {
  40 
  41     public static void main(String[] args) throws IOException {
  42         OutputStream ostream = new ByteArrayOutputStream();
  43 
  44         FileCacheImageOutputStream fcios =
  45             new FileCacheImageOutputStream(ostream, null);
  46         test(fcios);
  47 
  48         MemoryCacheImageOutputStream mcios =
  49             new MemoryCacheImageOutputStream(ostream);
  50         test(mcios);
  51     }
  52 
  53     private static void test(ImageOutputStream ios) throws IOException {
  54         try {
  55             ios.write(new byte[10], 0, 10);
  56             ios.flushBefore(5);
  57             ios.flushBefore(4);
  58 
  59             throw new RuntimeException
  60                 ("Failed to get IndexOutOfBoundsException!");
  61         } catch (IndexOutOfBoundsException e) {
  62         }
  63     }
  64 }