Name: akC57697 Date: 06/02/99



   Java io incorrectly works with files on mapped disks
For example , using SUNWNFS file system (provided by Solstice
NFS client).


The example:
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public class Test {
    public static void main(String[] argv) {
        try {
            char data[] = { '0', '1', '2', '3', '4', '5' };
            char empty[] = { };

            java.io.FileWriter f = new java.io.FileWriter("tempfile");
            f.write(data);
            f.close();

            java.io.FileReader fr = new java.io.FileReader("tempfile");
            System.out.println("The number of bytes read 1:" + fr.read(data));
            fr.close();


            f = new java.io.FileWriter("tempfile");
            f.write(empty); // Nothing
            f.close();

            fr = new java.io.FileReader("tempfile");
            System.out.println("The number of bytes read 2:" + fr.read(data));
            fr.close();

        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}
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Output :
The number of bytes read 1:6
The number of bytes read 2:6

expected (if use local disk):

The number of bytes read 1:6
The number of bytes read 2:-1

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