1/*
2 * Copyright (c) 2008, 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   @bug 4834154
26   @summary Decode a file using EUC-TW, test for decode errors
27 */
28
29/*
30 * Tests for decode errors in NIO EUC-TW decoder. 4734607 details
31 * decoding errors which occur when the input file > 8k in size
32 * and contains numerous US-ASCII range chars
33 */
34
35import java.io.*;
36
37public class BufferUnderflowEUCTWTest {
38    private static int BUFFERSIZE = 8194;
39
40    public static void main (String[] args) throws Exception {
41        int i = 0;
42        byte[] b = new byte[BUFFERSIZE];
43
44        for (; i < BUFFERSIZE - 4; i++) // pad with zeroes
45            b[i] = 0;
46
47        // Overspill a valid EUC-TW 4 byte sequence between 2
48        // successive input buffers.
49        b[i++] = (byte)0x8E;
50        b[i++] = (byte)0xA2;
51        b[i++] = (byte)0xA1;
52        b[i++] = (byte)0xA6;
53
54        ByteArrayInputStream r = new ByteArrayInputStream(b);
55
56        try {
57            InputStreamReader isr=new InputStreamReader(r, "EUC-TW");
58            char[] cc = new char[BUFFERSIZE];
59            int cx = isr.read(cc);
60        } catch (ArrayIndexOutOfBoundsException e) {
61            throw new Exception("Array Index error: bug 4834154");
62        }
63    }
64}
65