/*
 * 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.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * 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
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package sun.nio.ch;

import java.io.InputStream;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.SocketAddress;
import java.net.SocketImpl;
import java.net.SocketOption;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Set;

Dummy SocketImpl for use by the socket adaptors. All methods are overridden to throw an error.
/** * Dummy SocketImpl for use by the socket adaptors. All methods are overridden * to throw an error. */
class DummySocketImpl extends SocketImpl { private static final PrivilegedAction<SocketImpl> NEW = DummySocketImpl::new; private DummySocketImpl() { } static SocketImpl create() { return AccessController.doPrivileged(NEW); } private static <T> T shouldNotGetHere() { throw new InternalError("Should not get here"); } @Override protected void create(boolean stream) { shouldNotGetHere(); } @Override protected void connect(SocketAddress remote, int millis) { shouldNotGetHere(); } @Override protected void connect(String host, int port) { shouldNotGetHere(); } @Override protected void connect(InetAddress address, int port) { shouldNotGetHere(); } @Override protected void bind(InetAddress host, int port) { shouldNotGetHere(); } @Override protected void listen(int backlog) { shouldNotGetHere(); } @Override protected void accept(SocketImpl si) { shouldNotGetHere(); } @Override protected InputStream getInputStream() { return shouldNotGetHere(); } @Override protected OutputStream getOutputStream() { return shouldNotGetHere(); } @Override protected int available() { return shouldNotGetHere(); } @Override protected void close() { shouldNotGetHere(); } @Override protected Set<SocketOption<?>> supportedOptions() { return shouldNotGetHere(); } @Override protected <T> void setOption(SocketOption<T> opt, T value) { shouldNotGetHere(); } @Override protected <T> T getOption(SocketOption<T> opt) { return shouldNotGetHere(); } @Override public void setOption(int opt, Object value) { shouldNotGetHere(); } @Override public Object getOption(int opt) { return shouldNotGetHere(); } @Override protected void shutdownInput() { shouldNotGetHere(); } @Override protected void shutdownOutput() { shouldNotGetHere(); } @Override protected boolean supportsUrgentData() { return shouldNotGetHere(); } @Override protected void sendUrgentData(int data) { shouldNotGetHere(); } }