Name: auR10023 Date: 03/28/2002


java.nio.channels.FileChannel.transferTo(long, long,
WritableByteChannel) method does not throw ClosedChannelException with
closed WritableByteChannel. Here is the example:

----test.java----
import java.nio.*;
import java.nio.channels.*;
import java.io.*;

public class test {
    public static void main (String args []) {
        FileChannel channel = null;
        try {
            FileOutputStream os = (new FileOutputStream("aaa"));
            os.write(new byte [] {1,2,3,4,5});
            os.close();
            channel = (new FileInputStream("aaa")).getChannel();
        } catch (IOException e) {
            System.out.println("Unexpected IOException");
        }
        ByteArrayOutputStream ostr = new ByteArrayOutputStream(4);
        WritableByteChannel wch = Channels.newChannel(ostr);
        try {
            wch.close();
        } catch (IOException e) {
            System.out.println(e);
        }
        try {
            channel.transferTo(0, 2, wch);
            System.out.println("ClosedChannelException expected");
        } catch (Throwable e) {
            System.out.println(e);
        }
    }
}

#java -version
java version "1.4.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-b92)
Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode)

#java test
ClosedChannelException expected

======================================================================