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 5101128
26   @summary Check behavior of CharsetDecoder.decode when overflow occurs
27   @author Martin Buchholz
28 */
29
30import java.util.*;
31import java.nio.*;
32import java.nio.charset.*;
33
34public class DecoderOverflow {
35    static int failures = 0;
36
37    public static void main(String[] args) throws Exception {
38        for (String csn : Charset.availableCharsets().keySet()) {
39            try {
40                test(csn);
41            } catch (Throwable t) {
42                System.out.println(csn);
43                t.printStackTrace();
44                failures++;
45            }
46        }
47        if (failures > 0)
48            throw new Exception(failures + " charsets failed");
49    }
50
51    static void test(String encoding) throws Exception {
52        String text = "Vote for Duke!";
53        Charset cs = Charset.forName(encoding);
54        if (! cs.canEncode() || ! cs.newEncoder().canEncode('.')) return;
55        ByteBuffer in = ByteBuffer.wrap(text.getBytes(encoding));
56        CharBuffer out = CharBuffer.allocate(text.length()/2);
57        CoderResult result = cs.newDecoder().decode(in, out, true);
58        if (out.hasRemaining() || ! result.isOverflow())
59            throw new Exception
60                ("out.hasRemaining()=" + out.hasRemaining() +
61                 " result.isOverflow()=" + result.isOverflow() +
62                 " in.capacity()=" + in.capacity() +
63                 " encoding=" + encoding);
64    }
65}
66