1/*
2 * Copyright (c) 2004, 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 4654722
26 * @summary Ensure that ridiculously tiny buffers work with
27 *          Channels.newReader
28 */
29
30import java.io.*;
31import java.nio.*;
32import java.nio.channels.*;
33import java.nio.charset.*;
34
35
36public class TinyBuffers {
37
38    private static Charset cs = Charset.forName("UTF-16");
39
40    private static void test(int sz) throws Exception {
41        ByteArrayInputStream bis = new ByteArrayInputStream(new byte[100]);
42        ReadableByteChannel ch = Channels.newChannel(bis);
43        Reader r = Channels.newReader(ch, cs.newDecoder(), sz);
44        char [] arr = new char[100];
45        System.out.println(r.read(arr, 0, arr.length));
46    }
47
48    public static void main(String[] args) throws Exception {
49        for (int i = -2; i < 10; i++)
50            test(i);
51    }
52
53}
54