1/*
2 * Copyright (c) 2001, 2010, 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 * @summary Test read method of FileChannel
26 */
27
28import java.io.*;
29import java.nio.*;
30import java.nio.channels.*;
31
32
33/**
34 * Testing a read into buffers that have no room.
35 */
36public class ReadFull {
37
38    public static void main(String[] args) throws Exception {
39
40        File blah = File.createTempFile("blah", null);
41        blah.deleteOnExit();
42        ByteBuffer[] dstBuffers = new ByteBuffer[10];
43        for(int i=0; i<10; i++) {
44            dstBuffers[i] = ByteBuffer.allocateDirect(10);
45            dstBuffers[i].position(10);
46        }
47        FileInputStream fis = new FileInputStream(blah);
48        FileChannel fc = fis.getChannel();
49
50       // No space left in buffers, this should return 0
51        long bytesRead = fc.read(dstBuffers) ;
52        if (bytesRead != 0)
53            throw new RuntimeException("Nonzero return from read");
54
55        fc.close();
56        fis.close();
57        blah.delete();
58    }
59}
60