Java example source code file (OldImpl.java)

This example Java source code file (OldImpl.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

funkysocket, funkysocketimpl, funkywunkysocketimpl, inputstream, ioexception, net, network, object, oldimpl, outputstream, runtimeexception

The OldImpl.java Java example source code

/*
 * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

import java.io.*;
import java.net.*;


/**
 * @test
 * @bug 5089488
 * @summary  java.net.Socket checks for old-style impls
 */

public class OldImpl {

    /**
     * A no-op SocketImpl descendant.
     */
    static class FunkySocketImpl extends SocketImpl {
        protected void accept(SocketImpl impl) throws IOException {
        }

        protected int available(){
            return 0;
        }

        protected void bind(InetAddress host, int port){
        }

        protected void close(){
        }

        protected void connect(InetAddress address, int port){
        }

        protected void connect(String host, int port){
        }

        protected void connect(SocketAddress a,int b){
        }

        protected void create(boolean stream){
        }

        protected InputStream getInputStream(){
            return null;
        }

        protected OutputStream getOutputStream(){
            return null;
        }

        protected void listen(int backlog){
        }

        public Object getOption(int optID){
            return null;
        }

        public void setOption(int optID, Object value){
        }

        protected void sendUrgentData(int i){
        }
    }

    static class FunkyWunkySocketImpl extends FunkySocketImpl {}

    /**
     * A no-op Socket descendant.
     */
    static class FunkySocket extends Socket {
        public FunkySocket(SocketImpl impl) throws IOException {
            super(impl);
        }
    }

    public static void main(String args[]) throws Exception {
        FunkyWunkySocketImpl socketImpl = new FunkyWunkySocketImpl();
        FunkySocket socko = new FunkySocket(socketImpl);
        if (socko.isBound()) {
            throw new RuntimeException ("socket is not really bound");
        }
    }
}