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From "Vladimir Ivanov (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-1118) [classlib][net] compatibility: DatagramSocket().send() throws NPE on Harmony and works silently on RI
Date Wed, 09 Aug 2006 11:11:14 GMT
[classlib][net] compatibility: DatagramSocket().send() throws NPE on Harmony and works silently
on RI
-----------------------------------------------------------------------------------------------------

                 Key: HARMONY-1118
                 URL: http://issues.apache.org/jira/browse/HARMONY-1118
             Project: Harmony
          Issue Type: Bug
            Reporter: Vladimir Ivanov
         Attachments: DatagramSocket.patch

The method java.net.DatagramSocket().send() throws NPE on Harmony and works silently on RI.

======================== test.java ========================
import java.net.*;
import java.io.*;

public class test  { 

    public static void main (String[] args) {                     
       try {                                  
           InetSocketAddress sa = InetSocketAddress.createUnresolved("localhost", 0);
           System.out.println("adress = " + new DatagramPacket(new byte[272], 3, sa).getAddress());
           new testDatagramSocket(new TestDatagramSocketImpl()).send(new DatagramPacket(new
byte[272], 3, sa));
       } catch (Exception e) {
           e.printStackTrace();
       } 
    }     
}

class testDatagramSocket extends DatagramSocket {
   public testDatagramSocket(DatagramSocketImpl impl) throws SocketException {
       super(impl);
   }
}

class TestDatagramSocketImpl extends DatagramSocketImpl {
    protected void create() throws SocketException {}
    protected void bind(int arg0, InetAddress arg1) throws SocketException {}
    protected void send(DatagramPacket arg0) throws IOException {}
    protected int peek(InetAddress arg0) throws IOException {
        return 0;
    }
    protected int peekData(DatagramPacket arg0) throws IOException {
        return 0;
    }
    protected void receive(DatagramPacket arg0) throws IOException {}
    protected void setTTL(byte arg0) throws IOException {}
    protected byte getTTL() throws IOException {
        return 0;
    }
    protected void setTimeToLive(int arg0) throws IOException {}
    protected int getTimeToLive() throws IOException {
        return 0;
    }
    protected void join(InetAddress arg0) throws IOException {}
    protected void leave(InetAddress arg0) throws IOException {}
    protected void joinGroup(SocketAddress arg0, NetworkInterface arg1) throws IOException
{}
    protected void leaveGroup(SocketAddress arg0, NetworkInterface arg1) throws IOException
{}
    protected void close() {}
    public void setOption(int arg0, Object arg1) throws SocketException {}
    public Object getOption(int arg0) throws SocketException {
        return null;
    }
}
=======================================================

Output:
C:\tmp\tmp17>C:\jrockit-jdk1.5.0-windows-ia32\bin\java.exe -cp . -showversion test
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-win-ia32, R25.0.0-75, GC: System optimized
over throughput (initial strategy singleparpar))

adress = null

C:\tmp\tmp17>C:\harmony\drlvm1.5\build\win_ia32_msvc_debug\deploy\jre\bin\java -Dvm.assert_dialog=false
-cp . -showversion test
java version "1.5.0"
pre-alpha : not complete or compatible
svn = r429948, (Aug  9 2006), Windows/ia32/msvc 1310, debug build
http://incubator.apache.org/harmony
adress = null
java.lang.NullPointerException: address is null
        at java.net.DatagramSocket.send(DatagramSocket.java:408)
        at test.main(test.java:10)


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