Name: iaR10016 Date: 04/26/2000



JDK version:
java version "1.3.0beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.3.0beta-b01)
Classic VM (build 1.3.0beta-b01, green threads, nojit)

Connection becomes refused after the first DatagramServerSocket.send() call in Linux JDK 1.3.,
and if you send DatagramPacket once more, IO Exception is thrown.
It Solaris JDK 1.3 this bug is absent.

The following test example creates DatagramSocket object and DatagramPacket object, and then send
the packet twice:

--------------------------------------test.java:----------------------------------------------------------------

import java.net.*;
 
public class test {
    public static void main( String[] sss) {
        try {
            String msg = "Hello, World!";
            InetAddress me = InetAddress.getByName("127.0.0.1");
            DatagramSocket s = new DatagramSocket(3456,me);
            DatagramPacket hi = new DatagramPacket(msg.getBytes(),msg.length(),me,4567);
            s.send(hi);
            System.out.println("Message was sent - 1");
            s.send(hi);
            System.out.println("Message was sent - 2");
        } catch (Exception e) {
            System.out.println(e);
        }
    }
}

...

Output of the test in Linux OS:

...

$ javac test.java
$ java test
Message was sent - 1
java.io.IOException: Connection refused

...

Output of the test in Solaris OS:

...
$ javac test.java
$ java test
Message was sent - 1
Message was sent - 2
  
...

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