openjdk源码
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/*
* Copyright (c) 1998, 2010, 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 4091859
* @summary Test Socket.available()
*
*/
import java.net.*;
import java.io.*;
public class CloseAvailable implements Runnable {
static ServerSocket ss;
static InetAddress addr;
static int port;
public static void main(String[] args) throws Exception {
boolean error = true;
addr = InetAddress.getLocalHost();
ss = new ServerSocket(0);
port = ss.getLocalPort();
Thread t = new Thread(new CloseAvailable());
t.start();
Socket soc = ss.accept();
ss.close();
DataInputStream is = new DataInputStream(soc.getInputStream());
is.close();
try {
is.available();
}
catch (IOException ex) {
error = false;
}
if (error)
throw new RuntimeException("Available() can be called after stream closed.");
}
public void run() {
try {
Socket s = new Socket(addr, port);
s.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}