| /* |
| * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* @test |
| * @bug 4463036 |
| * @summary Check if file mapping extends beyond end of file |
| * @run main/othervm MapOverEnd |
| */ |
| |
| import java.nio.*; |
| import java.nio.channels.*; |
| import java.io.*; |
| |
| public class MapOverEnd { |
| public static void main (String [] args) throws Exception { |
| File blah = File.createTempFile("blah", null); |
| blah.deleteOnExit(); |
| RandomAccessFile raf = new RandomAccessFile (blah, "rw"); |
| FileChannel fc = raf.getChannel(); |
| MappedByteBuffer map = fc.map(FileChannel.MapMode.READ_WRITE, 0, 2048); |
| fc.close(); |
| double current = map.getDouble (50); |
| map.putDouble (50, current+0.1d); |
| map.force(); |
| } |
| } |