/*
* Copyright ( c ) 2001 , 2019 , 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 .
*/
/* @test
* @ bug 4455376
* @ summary Ensure that socket objects obtained from channels
* carry the correct address information
*/
import java.io.*;
import java.net.*;
import java.nio.*;
import java.nio.channels.*;
public class Shadow {
static PrintStream log = System.err;
private static void dump(ServerSocket s) {
log.println("getInetAddress(): " + s.getInetAddress());
log.println("getLocalPort(): " + s.getLocalPort());
}
private static void dump(Socket s) {
log.println("getInetAddress(): " + s.getInetAddress());
log.println("getPort(): " + s.getPort());
log.println("getLocalAddress(): " + s.getLocalAddress());
log.println("getLocalPort(): " + s.getLocalPort());
}
private static int problems = 0 ;
private static void problem(String s) {
log.println("FAILURE: " + s);
problems++;
}
private static void check(Socket s) {
if (s.getPort() == 0 )
problem("Socket has no port" );
if (s.getLocalPort() == 0 )
problem("Socket has no local port" );
if (!s.getLocalAddress().equals(s.getInetAddress()))
problem("Socket has wrong local address" );
}
public static void main(String[] args) throws Exception {
boolean useChannels
= ((args.length == 0 ) || Boolean .valueOf(args[0 ]).booleanValue());
int port = (args.length > 1 ? Integer.parseInt(args[1 ]) : -1 );
// open server socket
ServerSocket serverSocket;
if (useChannels) {
ServerSocketChannel serverSocketChannel =
ServerSocketChannel.open();
log.println("opened ServerSocketChannel: " +
serverSocketChannel);
serverSocket = serverSocketChannel.socket();
log.println("associated ServerSocket: " + serverSocket);
} else {
serverSocket = new ServerSocket();
log.println("opened ServerSocket: " + serverSocket);
}
// bind server socket to port
SocketAddress bindAddr =
new InetSocketAddress((port == -1 ) ? 0 : port);
serverSocket.bind(bindAddr);
log.println("bound ServerSocket: " + serverSocket);
log.println();
// open client socket
Socket socket;
if (useChannels) {
SocketChannel socketChannel = SocketChannel.open();
log.println("opened SocketChannel: " + socketChannel);
socket = socketChannel.socket();
log.println("associated Socket: " + socket);
} else {
socket = new Socket();
log.println("opened Socket: " + socket);
}
// connect client socket to port
SocketAddress connectAddr =
new InetSocketAddress(InetAddress.getLoopbackAddress(),
serverSocket.getLocalPort());
socket.connect(connectAddr);
log.println("connected Socket: " + socket);
log.println();
// accept connection
Socket acceptedSocket = serverSocket.accept();
log.println("accepted Socket: " + acceptedSocket);
log.println();
log.println("========================================" );
log.println("*** ServerSocket info: " );
dump(serverSocket);
log.println();
log.println("*** client Socket info: " );
dump(socket);
check(socket);
log.println();
log.println("*** accepted Socket info: " );
dump(acceptedSocket);
check(acceptedSocket);
log.println();
if (problems > 0 )
throw new Exception(problems + " tests failed" );
}
}
Messung V0.5 in Prozent C=96 H=96 G=95
¤ Dauer der Verarbeitung: 0.8 Sekunden
(vorverarbeitet am 2026-10-11)
¤
*© Formatika GbR, Deutschland