/*
* Copyright (c) 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 8220493
* @modules java.base/java.net:+open java.base/sun.nio.ch:+open
* @run testng/othervm SocketImplCombinations
* @summary Test Socket and ServerSocket with combinations of SocketImpls
*/
import java.io.FileDescriptor;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.lang.reflect.Field;
import java.net.InetAddress;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketAddress;
import java.net.SocketImpl;
import java.net.SocketImplFactory;
import java.nio.channels.ServerSocketChannel;
import java.nio.channels.SocketChannel;
import java.util.function.BiConsumer;
import org.testng.annotations.Test;
import static org.testng.Assert.*;
@Test
public class SocketImplCombinations {
/**
* Test creating an unconnected Socket, it should be created with a platform SocketImpl.
*/
public void testNewSocket1() throws IOException {
try (Socket s = new Socket()) {
SocketImpl si = getSocketImpl(s);
assertTrue(isSocksSocketImpl(si));
SocketImpl delegate = getDelegate(si);
assertTrue(isPlatformSocketImpl(delegate));
}
}
/**
* Test creating a connected Socket, it should be created with a platform SocketImpl.
*/
public void testNewSocket2() throws IOException {
try (ServerSocket ss = boundServerSocket()) {
try (Socket s = new Socket(ss.getInetAddress(), ss.getLocalPort())) {
SocketImpl si = getSocketImpl(s);
assertTrue(isSocksSocketImpl(si));
SocketImpl delegate = getDelegate(si);
assertTrue(isPlatformSocketImpl(delegate));
}
}
}
/**
* Test creating a Socket for a DIRECT connection, it should be created with a
* platform SocketImpl.
*/
public void testNewSocket3() throws IOException {
try (Socket s = new Socket(Proxy.NO_PROXY)) {
SocketImpl si = getSocketImpl(s);
assertTrue(isPlatformSocketImpl(si));
}
}
/**
* Test creating a Socket for a SOCKS connection, it should be created with a
* SOCKS SocketImpl.
*/
public void testNewSocket4() throws IOException {
var address = new InetSocketAddress("127.0.0.1", 1080);
var socksProxy = new Proxy(Proxy.Type.SOCKS, address);
try (Socket s = new Socket(socksProxy)) {
SocketImpl si = getSocketImpl(s);
assertTrue(isSocksSocketImpl(si));
SocketImpl delegate = getDelegate(si);
assertTrue(isPlatformSocketImpl(delegate));
}
}
/**
* Test creating a Socket for a HTTP proxy connection, it should be created with
* a HTTP proxy SocketImpl.
*/
public void testNewSocket5() throws IOException {
var address = new InetSocketAddress("127.0.0.1", 8080);
var httpProxy = new Proxy(Proxy.Type.HTTP, address);
try (Socket s = new Socket(httpProxy)) {
SocketImpl si = getSocketImpl(s);
assertTrue(isHttpConnectSocketImpl(si));
SocketImpl delegate = getDelegate(si);
assertTrue(isPlatformSocketImpl(delegate));
}
}
/**
* Test creating a Socket no SocketImpl. A platform SocketImpl should be
* created lazily.
*/
public void testNewSocket6() throws IOException {
Socket s = new Socket((SocketImpl) null) { };
try (s) {
assertTrue(getSocketImpl(s) == null);
s.bind(loopbackSocketAddress()); // force SocketImpl to be created
SocketImpl si = getSocketImpl(s);
assertTrue(isSocksSocketImpl(si));
SocketImpl delegate = getDelegate(si);
assertTrue(isPlatformSocketImpl(delegate));
}
}
/**
* Test creating a Socket with a custom SocketImpl.
*/
public void testNewSocket7() throws IOException {
Socket s = new Socket(new CustomSocketImpl(false)) { };
try (s) {
SocketImpl si = getSocketImpl(s);
assertTrue(si instanceof CustomSocketImpl);
}
}
/**
* Test creating a Socket when there is a SocketImplFactory set.
*/
public void testNewSocket8() throws IOException {
setSocketSocketImplFactory(() -> new CustomSocketImpl(false));
try (Socket s = new Socket()) {
SocketImpl si = getSocketImpl(s);
assertTrue(si instanceof CustomSocketImpl);
} finally {
setSocketSocketImplFactory(null);
}
}
/**
* Test creating a Socket for a DIRECT connection when there is a
* SocketImplFactory set.
*/
public void testNewSocket9() throws IOException {
setSocketSocketImplFactory(() -> new CustomSocketImpl(false));
try (Socket s = new Socket(Proxy.NO_PROXY)) {
SocketImpl si = getSocketImpl(s);
assertTrue(si instanceof CustomSocketImpl);
} finally {
setSocketSocketImplFactory(null);
}
}
/**
* Test creating a Socket for a SOCKS connection when there is a
* SocketImplFactory set.
*/
public void testNewSocket10() throws IOException {
var address = new InetSocketAddress("127.0.0.1", 1080);
var socksProxy = new Proxy(Proxy.Type.SOCKS, address);
setSocketSocketImplFactory(() -> new CustomSocketImpl(false));
try (Socket s = new Socket(socksProxy)) {
SocketImpl si = getSocketImpl(s);
assertTrue(isSocksSocketImpl(si));
SocketImpl delegate = getDelegate(si);
assertTrue(isPlatformSocketImpl(delegate));
} finally {
setSocketSocketImplFactory(null);
}
}
/**
* Test creating a Socket for a HTTP proxy connection when there is a
* SocketImplFactory set.
*/
public void testNewSocket11() throws IOException {
var address = new InetSocketAddress("127.0.0.1", 8080);
var httpProxy = new Proxy(Proxy.Type.HTTP, address);
setSocketSocketImplFactory(() -> new CustomSocketImpl(false));
try (Socket s = new Socket(httpProxy)) {
SocketImpl si = getSocketImpl(s);
assertTrue(isHttpConnectSocketImpl(si));
SocketImpl delegate = getDelegate(si);
assertTrue(isPlatformSocketImpl(delegate));
} finally {
setSocketSocketImplFactory(null);
}
}
/**
* Test creating a Socket no SocketImpl when there is a SocketImplFactory set.
*/
public void testNewSocket12() throws IOException {
setSocketSocketImplFactory(() -> new CustomSocketImpl(false));
try {
Socket s = new Socket((SocketImpl) null) { };
try (s) {
assertTrue(getSocketImpl(s) == null);
s.bind(loopbackSocketAddress()); // force SocketImpl to be created
assertTrue(getSocketImpl(s) instanceof CustomSocketImpl);
}
} finally {
setSocketSocketImplFactory(null);
}
}
/**
* Test creating an unbound ServerSocket, it should be created with a platform
* SocketImpl.
*/
public void testNewServerSocket1() throws IOException {
try (ServerSocket ss = new ServerSocket()) {
SocketImpl si = getSocketImpl(ss);
assertTrue(isPlatformSocketImpl(si));
}
}
/**
* Test creating a bound ServerSocket, it should be created with a platform
* SocketImpl.
*/
public void testNewServerSocket2() throws IOException {
try (ServerSocket ss = new ServerSocket(0)) {
SocketImpl si = getSocketImpl(ss);
assertTrue(isPlatformSocketImpl(si));
}
}
/**
* Test creating a ServerSocket with a custom SocketImpl.
*/
public void testNewServerSocket3() throws IOException {
ServerSocket ss = new ServerSocket(new CustomSocketImpl(true)) { };
try (ss) {
SocketImpl si = getSocketImpl(ss);
assertTrue(si instanceof CustomSocketImpl);
}
}
/**
* Test creating an unbound ServerSocket when there is a SocketImplFactory set.
*/
public void testNewServerSocket4() throws IOException {
setServerSocketImplFactory(() -> new CustomSocketImpl(true));
try (ServerSocket ss = new ServerSocket()) {
SocketImpl si = getSocketImpl(ss);
assertTrue(si instanceof CustomSocketImpl);
} finally {
setServerSocketImplFactory(null);
}
}
/**
* Test creating a bound ServerSocket when there is a SocketImplFactory set.
*/
public void testNewServerSocket5() throws IOException {
setServerSocketImplFactory(() -> new CustomSocketImpl(true));
try (ServerSocket ss = new ServerSocket(0)) {
SocketImpl si = getSocketImpl(ss);
assertTrue(si instanceof CustomSocketImpl);
} finally {
setServerSocketImplFactory(null);
}
}
/**
* Test ServerSocket.accept. The ServerSocket uses a platform SocketImpl,
* the Socket to accept is created with no SocketImpl.
*/
public void testServerSocketAccept1() throws IOException {
var socket = new Socket((SocketImpl) null) { };
assertTrue(getSocketImpl(socket) == null);
serverSocketAccept(socket, (ss, s) -> {
assertTrue(isPlatformSocketImpl(getSocketImpl(ss)));
assertTrue(s == socket);
SocketImpl si = getSocketImpl(s);
assertTrue(isPlatformSocketImpl(si));
checkFields(si);
});
}
/**
* Test ServerSocket.accept. The ServerSocket uses a platform SocketImpl,
* the Socket to accept is created with no SocketImpl, and there is a custom
* client SocketImplFactory set.
*/
public void testServerSocketAccept2() throws IOException {
var socket = new Socket((SocketImpl) null) { };
assertTrue(getSocketImpl(socket) == null);
serverSocketAccept(socket, () -> new CustomSocketImpl(false), (ss, s) -> {
assertTrue(isPlatformSocketImpl(getSocketImpl(ss)));
assertTrue(s == socket);
SocketImpl si = getSocketImpl(s);
assertTrue(isPlatformSocketImpl(si));
checkFields(si);
});
}
/**
* Test ServerSocket.accept. The ServerSocket uses a platform SocketImpl,
* the Socket to accept is created with a SocketImpl that delegates to a
* platform SocketImpl.
*/
public void testServerSocketAccept3() throws IOException {
var socket = new Socket();
SocketImpl si = getSocketImpl(socket);
assertTrue(isSocksSocketImpl(si));
SocketImpl delegate = getDelegate(si);
assertTrue(isPlatformSocketImpl(delegate));
serverSocketAccept(socket, (ss, s) -> {
assertTrue(isPlatformSocketImpl(getSocketImpl(ss)));
assertTrue(s == socket);
SocketImpl psi = getSocketImpl(socket);
assertTrue(isPlatformSocketImpl(psi));
checkFields(psi);
});
}
/**
* Test ServerSocket.accept. The ServerSocket uses a platform SocketImpl,
* the Socket to accept is created with a custom SocketImpl.
*/
public void testServerSocketAccept4a() throws IOException {
SocketImpl clientImpl = new CustomSocketImpl(false);
Socket socket = new Socket(clientImpl) { };
assertTrue(getSocketImpl(socket) == clientImpl);
try (ServerSocket ss = serverSocketToAccept(socket)) {
expectThrows(IOException.class, ss::accept);
} finally {
socket.close();
}
}
public void testServerSocketAccept4b() throws IOException {
SocketImpl clientImpl = new CustomSocketImpl(false);
Socket socket = new Socket(clientImpl) { };
assertTrue(getSocketImpl(socket) == clientImpl);
setSocketSocketImplFactory(() -> new CustomSocketImpl(false));
try (ServerSocket ss = serverSocketToAccept(socket)) {
expectThrows(IOException.class, ss::accept);
} finally {
setSocketSocketImplFactory(null);
socket.close();
}
}
/**
* Test ServerSocket.accept. The ServerSocket uses a custom SocketImpl,
* the Socket to accept is created no SocketImpl.
*/
public void testServerSocketAccept5a() throws IOException {
SocketImpl serverImpl = new CustomSocketImpl(true);
try (ServerSocket ss = new ServerSocket(serverImpl) { }) {
ss.bind(loopbackSocketAddress());
expectThrows(IOException.class, ss::accept);
}
}
public void testServerSocketAccept5b() throws IOException {
var socket = new Socket((SocketImpl) null) { };
assertTrue(getSocketImpl(socket) == null);
SocketImpl serverImpl = new CustomSocketImpl(true);
try (ServerSocket ss = serverSocketToAccept(serverImpl, socket)) {
expectThrows(IOException.class, ss::accept);
} finally {
socket.close();
}
}
public void testServerSocketAccept5c() throws IOException {
setServerSocketImplFactory(() -> new CustomSocketImpl(true));
try (ServerSocket ss = new ServerSocket(0)) {
expectThrows(IOException.class, ss::accept);
} finally {
setServerSocketImplFactory(null);
}
}
public void testServerSocketAccept5d() throws IOException {
var socket = new Socket((SocketImpl) null) { };
assertTrue(getSocketImpl(socket) == null);
setServerSocketImplFactory(() -> new CustomSocketImpl(true));
try (ServerSocket ss = serverSocketToAccept(socket)) {
expectThrows(IOException.class, ss::accept);
} finally {
setServerSocketImplFactory(null);
socket.close();
}
}
/**
* Test ServerSocket.accept. The ServerSocket uses a custom SocketImpl,
* the Socket to accept is created with no SocketImpl, and there is a custom
* client SocketImplFactory set.
*/
public void testServerSocketAccept6() throws Exception {
var socket = new Socket((SocketImpl) null) { };
assertTrue(getSocketImpl(socket) == null);
SocketImpl serverImpl = new CustomSocketImpl(true);
SocketImplFactory clientFactory = () -> new CustomSocketImpl(false);
serverSocketAccept(serverImpl, socket, clientFactory, (ss, s) -> {
assertTrue(getSocketImpl(ss) == serverImpl);
SocketImpl si = getSocketImpl(s);
assertTrue(si instanceof CustomSocketImpl);
checkFields(si);
});
}
/**
* Test ServerSocket.accept. The ServerSocket uses a custom SocketImpl,
* the Socket to accept is created with a SocketImpl that delegates to a
* platform SocketImpl.
*/
public void testServerSocketAccept7a() throws IOException {
var socket = new Socket();
SocketImpl si = getSocketImpl(socket);
assertTrue(isSocksSocketImpl(si));
SocketImpl delegate = getDelegate(si);
assertTrue(isPlatformSocketImpl(delegate));
SocketImpl serverImpl = new CustomSocketImpl(true);
try (ServerSocket ss = serverSocketToAccept(serverImpl, socket)) {
expectThrows(IOException.class, ss::accept);
} finally {
socket.close();
}
}
public void testServerSocketAccept7b() throws IOException {
var socket = new Socket();
SocketImpl si = getSocketImpl(socket);
assertTrue(isSocksSocketImpl(si));
SocketImpl delegate = getDelegate(si);
assertTrue(isPlatformSocketImpl(delegate));
setServerSocketImplFactory(() -> new CustomSocketImpl(true));
try (ServerSocket ss = serverSocketToAccept(socket)) {
expectThrows(IOException.class, ss::accept);
} finally {
setServerSocketImplFactory(null);
socket.close();
}
}
/**
* Test ServerSocket.accept. The ServerSocket uses a custom SocketImpl,
* the Socket to accept is created with a custom SocketImpl.
*/
public void testServerSocketAccept8() throws Exception {
SocketImpl clientImpl = new CustomSocketImpl(false);
Socket socket = new Socket(clientImpl) { };
assertTrue(getSocketImpl(socket) == clientImpl);
SocketImpl serverImpl = new CustomSocketImpl(true);
SocketImplFactory clientFactory = () -> new CustomSocketImpl(false);
serverSocketAccept(serverImpl, socket, clientFactory, (ss, s) -> {
assertTrue(getSocketImpl(ss) == serverImpl);
assertTrue(getSocketImpl(s) == clientImpl);
checkFields(clientImpl);
});
}
/**
* Creates a ServerSocket that returns the given Socket from accept.
* The consumer is invoked with the server socket and the accepted socket.
*/
static void serverSocketAccept(Socket socket,
BiConsumer<ServerSocket, Socket> consumer)
throws IOException
{
Socket s1 = null;
Socket s2 = null;
try (ServerSocket ss = serverSocketToAccept(socket)) {
s1 = new Socket(ss.getInetAddress(), ss.getLocalPort());
s2 = ss.accept();
consumer.accept(ss, s2);
} finally {
if (s1 != null) s1.close();
if (s2 != null) s2.close();
}
}
/**
* Creates a ServerSocket that returns the given Socket from accept. The
* given SocketImplFactory is set during the accept and the consumer is
* invoked when the server socket and the accepted socket.
*/
static void serverSocketAccept(Socket socket,
SocketImplFactory factory,
BiConsumer<ServerSocket, Socket> consumer)
throws IOException
{
Socket s1 = null;
Socket s2 = null;
try (ServerSocket ss = serverSocketToAccept(socket)) {
s1 = new Socket(ss.getInetAddress(), ss.getLocalPort());
setSocketSocketImplFactory(factory);
try {
s2 = ss.accept();
} finally {
setSocketSocketImplFactory(null);
}
consumer.accept(ss, s2);
} finally {
if (s1 != null) s1.close();
if (s2 != null) s2.close();
}
}
/**
* Creates a ServerSocket with a SocketImpl returns the given Socket from
* accept. The given SocketImplFactory is set during the accept and the
* consumer is invoked when the server socket and the accepted socket.
*/
static void serverSocketAccept(SocketImpl impl,
Socket socket,
SocketImplFactory factory,
BiConsumer<ServerSocket, Socket> consumer)
throws IOException
{
Socket s1 = null;
Socket s2 = null;
try (ServerSocket ss = serverSocketToAccept(impl, socket)) {
s1 = new Socket(ss.getInetAddress(), ss.getLocalPort());
setSocketSocketImplFactory(factory);
try {
s2 = ss.accept();
} finally {
setSocketSocketImplFactory(null);
}
consumer.accept(ss, s2);
} finally {
if (s1 != null) s1.close();
if (s2 != null) s2.close();
}
}
/**
* Returns a new InetSocketAddress with the loopback interface
* and port 0.
*/
static InetSocketAddress loopbackSocketAddress() {
InetAddress loopback = InetAddress.getLoopbackAddress();
return new InetSocketAddress(loopback, 0);
}
/**
* Returns a ServerSocket bound to a port on the loopback address
*/
static ServerSocket boundServerSocket() throws IOException {
ServerSocket ss = new ServerSocket();
ss.bind(loopbackSocketAddress());
return ss;
}
/**
* Creates a ServerSocket that returns the given Socket from accept.
*/
static ServerSocket serverSocketToAccept(Socket s) throws IOException {
ServerSocket ss = new ServerSocket() {
@Override
public Socket accept() throws IOException {
implAccept(s);
return s;
}
};
ss.bind(loopbackSocketAddress());
return ss;
}
/**
* Creates a ServerSocket with a SocketImpl that returns the given Socket
* from accept.
*/
static ServerSocket serverSocketToAccept(SocketImpl impl, Socket s) throws IOException {
ServerSocket ss = new ServerSocket(impl) {
@Override
public Socket accept() throws IOException {
implAccept(s);
return s;
}
};
ss.bind(loopbackSocketAddress());
return ss;
}
/**
* Returns the socket's SocketImpl
*/
static SocketImpl getSocketImpl(Socket s) {
try {
Field f = Socket.class.getDeclaredField("impl");
f.setAccessible(true);
return (SocketImpl) f.get(s);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Returns the server socket's SocketImpl
*/
static SocketImpl getSocketImpl(ServerSocket ss) {
try {
Field f = ServerSocket.class.getDeclaredField("impl");
f.setAccessible(true);
return (SocketImpl) f.get(ss);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Returns the SocketImpl that the given SocketImpl delegates to
*/
static SocketImpl getDelegate(SocketImpl si) {
try {
Class<?> clazz = Class.forName("java.net.DelegatingSocketImpl");
Field f = clazz.getDeclaredField("delegate");
f.setAccessible(true);
return (SocketImpl) f.get(si);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Returns the value of a SocketImpl field
*/
static <T> T get(SocketImpl si, String name) {
try {
Field f = SocketImpl.class.getDeclaredField(name);
f.setAccessible(true);
return (T) f.get(si);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Sets the value of SocketImpl field
*/
static void set(SocketImpl si, String name, Object value) {
try {
Field f = SocketImpl.class.getDeclaredField(name);
f.setAccessible(true);
f.set(si, value);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Returns true if the SocketImpl is a PlatformSocketImpl
*/
static boolean isPlatformSocketImpl(SocketImpl si) {
try {
Class<?> clazz = Class.forName("sun.net.PlatformSocketImpl");
return clazz.isInstance(si);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Returns true if the SocketImpl is a SocksSocketImpl
*/
static boolean isSocksSocketImpl(SocketImpl si) {
try {
Class<?> clazz = Class.forName("java.net.SocksSocketImpl");
return clazz.isInstance(si);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Returns true if the SocketImpl is a HttpConnectSocketImpl
*/
static boolean isHttpConnectSocketImpl(SocketImpl si) {
try {
Class<?> clazz = Class.forName("java.net.HttpConnectSocketImpl");
return clazz.isInstance(si);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Socket.setSocketImplFactory(SocketImplFactory)
*/
static void setSocketSocketImplFactory(SocketImplFactory factory) {
try {
Field f = Socket.class.getDeclaredField("factory");
f.setAccessible(true);
f.set(null, factory);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* ServerSocket.setSocketFactory(SocketImplFactory)
*/
static void setServerSocketImplFactory(SocketImplFactory factory) {
try {
Field f = ServerSocket.class.getDeclaredField("factory");
f.setAccessible(true);
f.set(null, factory);
} catch (Exception e) {
throw new RuntimeException(e);
}
}
/**
* Checks the 4 protected fields of a SocketImpl to make sure that they
* have been initialized.
*/
static void checkFields(SocketImpl si) {
FileDescriptor fd = get(si, "fd");
InetAddress address = get(si, "address");
int port = get(si, "port");
int localport = get(si, "localport");
assertTrue(fd.valid() && address != null && port != 0 && localport != 0);
}
/**
* Custom SocketImpl that is layed on a SocketChannel or ServerSocketChannel
*/
static class CustomSocketImpl extends SocketImpl {
private final boolean server;
private ServerSocketChannel ssc;
private SocketChannel sc;
CustomSocketImpl(boolean server) {
this.server = server;
}
@Override
protected void create(boolean stream) throws IOException {
if (server) {
ssc = ServerSocketChannel.open();
} else {
sc = SocketChannel.open();
}
}
@Override
protected void connect(String host, int port) throws IOException {
connect(new InetSocketAddress(host, port), 0);
}
@Override
protected void connect(InetAddress address, int port) throws IOException {
connect(new InetSocketAddress(address, port), 0);
}
@Override
protected void connect(SocketAddress remote, int timeout) throws IOException {
sc.connect(remote);
super.address = ((InetSocketAddress) remote).getAddress();
super.port = ((InetSocketAddress) remote).getPort();
}
@Override
protected void bind(InetAddress address, int port) throws IOException {
if (server) {
ssc.bind(new InetSocketAddress(address, port));
super.localport = ssc.socket().getLocalPort();
} else {
sc.bind(new InetSocketAddress(address, port));
super.localport = sc.socket().getLocalPort();
}
super.address = address;
}
@Override
protected void listen(int backlog) {
// do nothing
}
@Override
protected void accept(SocketImpl si) throws IOException {
SocketChannel peer = ssc.accept();
FileDescriptor fd;
try {
Class<?> clazz = Class.forName("sun.nio.ch.SocketChannelImpl");
Field f = clazz.getDeclaredField("fd");
f.setAccessible(true);
fd = (FileDescriptor) f.get(peer);
} catch (Exception e) {
throw new RuntimeException(e);
}
set(si, "fd", fd);
set(si, "address", peer.socket().getInetAddress());
set(si, "port", peer.socket().getPort());
set(si, "localport", peer.socket().getLocalPort());
}
@Override
protected InputStream getInputStream() {
throw new RuntimeException();
}
@Override
protected OutputStream getOutputStream() {
throw new RuntimeException();
}
@Override
protected int available() {
return 0;
}
@Override
protected void close() {
}
@Override
protected void sendUrgentData(int data) {
throw new RuntimeException();
}
@Override
public void setOption(int option, Object value) {
throw new RuntimeException();
}
@Override
public Object getOption(int option) {
throw new RuntimeException();
}
}
}