6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4091859
  27  * @summary Test Socket.available()
  28  * @run main CloseAvailable
  29  * @run main/othervm -Djava.net.preferIPv4Stack=true CloseAvailable
  30  */
  31 
  32 import java.net.*;
  33 import java.io.*;
  34 
  35 
  36 public class CloseAvailable implements Runnable {
  37     static ServerSocket ss;
  38     static InetAddress addr;
  39     static int port;
  40 
  41     public static void main(String[] args) throws Exception {







  42         boolean error = true;
  43         addr = InetAddress.getLocalHost();
  44         ss = new ServerSocket(0);
  45         port = ss.getLocalPort();











  46 
  47         Thread t = new Thread(new CloseAvailable());
  48         t.start();
  49 
  50         Socket  soc = ss.accept();
  51         ss.close();
  52 
  53         DataInputStream is = new DataInputStream(soc.getInputStream());
  54         is.close();
  55 
  56         try {
  57             is.available();
  58         }
  59         catch (IOException ex) {
  60             error = false;
  61         }
  62         if (error)
  63             throw new RuntimeException("Available() can be called after stream closed.");
  64     }
  65 
  66     public void run() {
  67         try {
  68             Socket s = new Socket(addr, port);
  69             s.close();
  70         } catch (Exception e) {
  71             e.printStackTrace();
  72         }
















  73     }
  74 













  75 }

   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25  * @test
  26  * @bug 4091859 8189366
  27  * @summary Test Socket.available()
  28  * @run main CloseAvailable
  29  * @run main/othervm -Djava.net.preferIPv4Stack=true CloseAvailable
  30  */
  31 
  32 import java.net.*;
  33 import java.io.*;
  34 
  35 
  36 public class CloseAvailable {



  37 
  38     public static void main(String[] args) throws Exception {
  39         testClose();
  40 
  41         testEOF(true);
  42         testEOF(false);
  43     }
  44 
  45     static void testClose() throws IOException {
  46         boolean error = true;
  47         InetAddress addr = InetAddress.getLocalHost();
  48         ServerSocket ss = new ServerSocket(0);
  49         int port = ss.getLocalPort();
  50 
  51         Thread t = new Thread(new Thread("Close-Available-1") {
  52             public void run() {
  53                 try {
  54                     Socket s = new Socket(addr, port);
  55                     s.close();
  56                 } catch (Exception e) {
  57                     e.printStackTrace();
  58                 }
  59             }
  60         });
  61 

  62         t.start();
  63 
  64         Socket  soc = ss.accept();
  65         ss.close();
  66 
  67         DataInputStream is = new DataInputStream(soc.getInputStream());
  68         is.close();
  69 
  70         try {
  71             is.available();
  72         }
  73         catch (IOException ex) {
  74             error = false;
  75         }
  76         if (error)
  77             throw new RuntimeException("Available() can be called after stream closed.");
  78     }
  79 
  80     // Verifies consistency of `available` behaviour when EOF reached, both
  81     // explicitly and implicitly.
  82     static void testEOF(boolean readUntilEOF) throws IOException {
  83         System.out.println("testEOF, readUntilEOF: " + readUntilEOF);
  84         InetAddress addr = InetAddress.getLoopbackAddress();
  85         ServerSocket ss = new ServerSocket();
  86         ss.bind(new InetSocketAddress(addr, 0), 0);
  87         int port = ss.getLocalPort();
  88 
  89         try (Socket s = new Socket(addr, port)) {
  90             s.getOutputStream().write(0x42);
  91             s.shutdownOutput();
  92 
  93             try (Socket soc = ss.accept()) {
  94                 ss.close();
  95 
  96                 InputStream is = soc.getInputStream();
  97                 int b = is.read();
  98                 assert b == 0x42;
  99                 assert !s.isClosed();
 100                 if (readUntilEOF) {
 101                     b = is.read();
 102                     assert b == -1;
 103                 }
 104 
 105                 int a;
 106                 for (int i = 0; i < 100; i++) {
 107                     a = is.available();
 108                     System.out.print(a + ", ");
 109                     if (a != 0)
 110                         throw new RuntimeException("Unexpected non-zero available: " + a);
 111                 }
 112                 assert !s.isClosed();
 113                 assert is.read() == -1;
 114             }
 115         }
 116         System.out.println("\ncomplete");
 117     }
 118 }