Invalid message length

[Tony]

I sending these data to server

public class Test {
   
    public static void main(String args[]) throws ISOException
    {
     Logger logger = new Logger();
        logger.addListener(new SimpleLogListener(System.out));
        ISOMsg m = new ISOMsg();
        MEPSISOHeader header = new MEPSISOHeader(ISOUtil.hex2byte("303030303030303030303030303030303030303030303030303030"));
        //MEPSISOHeader header = new MEPSISOHeader();
        System.out.println("ori: " + ISOUtil.dumpString(header.pack()));
        header.setLiteral(MEPSISOHeader.LETERAL);
        header.setProductIndicator(MEPSISOHeader.PROD_IND_MEPS_POS);
                                     ......
        m.setHeader(header);
        header.dump("");
        m.setMTI("0800");
        m.set(7, "xxxxxxxxxx");
      .                 ......

        MEPSChannel channel = new MEPSChannel("localhost", 7010, new ISO87APackager(), header);
        ((LogSource) channel).setLogger(logger, "channel");
        try {
            channel.connect();

            channel.send(m);
            ISOMsg incoming = channel.receive();

        } catch (Exception e) {
            System.out.println(e);
        }
    }
}

And here the server side

public class ServerTest implements ISORequestListener{
   
    public static void main(String[] args)
    {
       ServerChannel sChannel = null;
        Logger logger = new Logger();
        logger.addListener(new SimpleLogListener(System.out));
        try{
         sChannel = new ASCIIChannel(new ISO87APackager());
        ((LogSource)sChannel).setLogger(logger,"server-channel-logger");
        }catch(Exception e){
            System.out.println(e);
        }
        ISOServer isoServer = new ISOServer(7010,sChannel,null); ISORequestListeners
        isoServer.setLogger(logger,"server-logger");
       
        isoServer.addISORequestListener(new ServerTest());
        new Thread(isoServer).start(); // able to accept multiple connections at the same time
    }
   
     @Override
    public boolean process(ISOSource isoSource, ISOMsg isoMsg) {

        ISOMsg m = (ISOMsg) isoMsg.clone();
        try {
            m.setResponseMTI();
            m.set(7,"xxxxxxxxxx");
                     ......
            isoSource.send(m);
        } catch (ISOException e) {
        } catch (IOException e) {
        }

        return true;
    }
}

I can send the message, but cannot receive. Here the error found in the server

<log realm="server-channel-logger/127.0.0.1:43094" at="Thu Mar 30 17:14:53.995 MYT 2017" lifespan="505ms">
  <receive>
    <iso-exception>
      Invalid message length

[Tony]

Error in channel side

java.io.EOFException



Error in server

<log realm="server-logger.session/127.0.0.1:43166" at="Thu Mar 30 17:31:59.496 MYT 2017">
  <session-error>
    <iso-exception>
      Invalid message length

[Andrés Alcarraz]

You have a different channel in the server than in the client, if your Client channel is sending the length differently than the ASCIIchannel is expecting you will have exactly that behavior.

As you didn't post your Client channel code I'm afraid that we can't give you more help.

Also in the client you are sending a header that your server channel isn't expecting.

Andrés Alcarraz

Enviado desde el móvil

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