Name: auR10023 Date: 12/24/2002



configureBlocking(boolean) should throw ClosedChannelException exception
with following closed channels:
    java.nio.channels.DatagramChannel
    java.nio.channels.SocketChannel
    java.nio.channels.ServerSocketChannel


Here is the example:

-------test.java---------


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

class test {
    public static void main (String [] str) {
        SelectableChannel [] channels = null;
        try {
            channels = new SelectableChannel [] {
                DatagramChannel.open(),
                SocketChannel.open(),
                ServerSocketChannel.open()};
        } catch (IOException e) {
            System.out.println("Unexpected IOException");
            return;
        }
        
 
        for (int i = 0; i < channels.length; i++) {
            SelectableChannel channel = channels[i];
            try {
                channel.close();
            } catch (IOException e) {
                System.out.println("Unexpected IOException");
                return;
            }
 
            try {
                channel.configureBlocking(true);
                System.out.println("configureBlocking(boolean) should throw " +
                                   "ClosedChannelException with " +
                                   channels[i].getClass().getName());
            } catch (ClosedChannelException e) {
            } catch (IOException e) {
                System.out.println("Unexpected IOException");
            }
        }
    }
}

Here is the result
#java -version

java version "1.4.2-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2-beta-b11)
Java HotSpot(TM) Client VM (build 1.4.2-beta-b11, mixed mode)


#java test

configureBlocking(boolean) should throw ClosedChannelException with sun.nio.ch.DatagramChannelImpl
configureBlocking(boolean) should throw ClosedChannelException with sun.nio.ch.SocketChannelImpl
configureBlocking(boolean) should throw ClosedChannelException with sun.nio.ch.ServerSocketChannelImpl

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