Name: auR10023 Date: 08/16/2002



java.nio.FileChannel.transferTo(long, long, WritableByteChannel) throws
unexpected IOException instead of NonWritableChannelException

Here is the example:

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


public class test {

    public static void main(String args[]) {
            FileChannel channel = null;
            try {
                 channel = (new FileInputStream(
                    new File("test.java").getPath())).getChannel();
            } catch (IOException e) {
                System.out.println("Cannot create channel");
                return;
            }

            try {
                channel.transferTo((long)0, (long)2,
                                   channel);
                System.out.println( "NonWritableChannelException expected");
                return;
            } catch(NonWritableChannelException e) {
            } catch(IllegalStateException e) {
                return;
            } catch(IllegalArgumentException e) {
                return;
            } catch(IOException e) {
                System.out.println("Unexpected IOException");
                return;
            }
            System.out.println( "OK");
        return;
    }
}

Here is the result of execution on Solaris 2.8 and Linux RH 7.3

Solaris:

#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

OK

Linux:

#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

Unexpected IOException

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