SocketChannel problem

gistfile1.java

import java.io.IOException;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Socket;
import java.nio.channels.SocketChannel;

public class LeakTest {

    public static void main(String[] args) {
        new LeakTest().test();
        try {
            Thread.sleep(1000000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }

    public void test() {
        SocketChannel channel = null;
        try {
            channel = SocketChannel.open(); // aqui já aparece 'can't identify protocol'
            // channel.configureBlocking(false);
            final Socket socket = channel.socket();
            channel.connect(new InetSocketAddress(InetAddress.getByName("8.8.8.8"), 142));
        } catch (IOException e) {
            e.printStackTrace();
            try {
                channel.close();
            } catch (Exception f) {
                f.printStackTrace();
            }

        }
    }
}