1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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5  * This code is free software; you can redistribute it and/or modify it
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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  *
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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23 
24 /* @test
25  * @bug 4896666
26  * @run main/othervm -esa MapAssertions
27  * @summary Check for assertion failures in FileChannel.map
28  */
29 
30 import java.io.*;
31 import java.nio.*;
32 import java.nio.channels.*;
33 
34 public class MapAssertions {
main(String[] args)35     public static void main(String[] args) throws Exception {
36         File blah = File.createTempFile("blah", null);
37         blah.deleteOnExit();
38         RandomAccessFile raf = new RandomAccessFile(blah, "r");
39         FileChannel fc = raf.getChannel();
40         long fileSize = fc.size();
41         MappedByteBuffer mapBuf =
42             fc.map(FileChannel.MapMode.READ_ONLY, 0l, fileSize);
43         fc.close();
44         raf.close();
45     }
46 }
47