Name: yyC67448 Date: 04/19/98



On Win32 the java.net.SocketException:socket closed is incorectly thrown when
attempt is made to receive a packet with length greater, than receive buffer
length.


Here is the test demonstrating the bug:

-------------------------------- Test.java -----------------------------

import java.net.*;


class test
{
  public static void main(String args[])
  {
    DatagramSocket soc=null;
    DatagramSocket server = null;
    DatagramPacket pac=null;
    InetAddress sin = null;
    int port = 0;
    int server_port = 0;
    byte[] array = new byte[1];
    byte array1[] = { 49, 50, 51, 52, 53 };
    String str, str1;
    
    try {
      sin = InetAddress.getLocalHost();
    } catch(Exception e)
    {
      System.out.println("Can not get local host address :" + e);
      System.exit(-1);
    }
    
    
    // Try to create new DatagramSocket instance
    try {
      soc = new DatagramSocket();
      port = soc.getLocalPort();
    } catch(SecurityException e)
    {
      SecurityManager sec = System.getSecurityManager();
      if(sec != null)
      {
        try {
          sec.checkListen(port);
          System.out.println("Unexpected SecurityException :" + e);
System.exit(-1);
        } catch(SecurityException e1)
        {
          System.out.println("correctly failed to setup test:
SecurityException");
System.exit(0);
        }
      }
    } catch(Exception e)
    {
      System.out.println("Can not create DatagramSocket instance :" + e);
      System.exit(0);
    }
    
    
    // Try to create DatagramTestServer ...
    try {
      server = new DatagramSocket(server_port);
      server_port = server.getLocalPort();
    } catch(Exception e)
    {
      soc.close();
      System.out.println("Failed: Can not create DatagramTestServer " + e);
      System.exit(-1);
    }
    
    pac = new DatagramPacket(array, array.length);
    
    try {
      server.send(new DatagramPacket(array1, array1.length, sin, port));
      soc.receive(pac);
    } catch(SecurityException e)
    {
      SecurityManager sec = System.getSecurityManager();
      if(sec != null)
      {
        try {
          sec.checkConnect(sin.getHostName(), port);
          System.out.println("Unexpected SecurityException :" + e);
System.exit(-1);
        } catch(SecurityException e1)
        {
          System.out.println("correctly failed to setup test:
SecurityException");
System.exit(-1);
        }
      }
    } catch(Exception e)
    {
      soc.close();
      server.close();
      System.out.println("Failed: Unexpected exception " + e );
      System.exit(-1);
    }
    
    str = new String(pac.getData());
    str1 = new String(array1);
    
    if(str1.startsWith(str))
    {
      soc.close();
      server.close();
      System.out.println("Passed.OKAY");
      System.exit(0);
    }
    
    soc.close();
    server.close();
    System.out.println("Failed: Send/received data mismatch");
    System.exit(-1);
    
  }

}

------------------ Output from the test on Solaris -------------
Passed.OKAY
-----------------------------------------------------------------
------------------ Output from the test on Windows --------------
Failed: Unexpected exception java.net.SocketException: socket closed
-----------------------------------------------------------------



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