/*

 * 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

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 */

/* @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();

    }

}