title: ISO 8583 server bitmap is -1
body: <p>I use JPOS to send and receive ISO 8583 messages. 
  Here is Client :</p>
  
  <pre><code>public static void main(String[] args) throws IOException, ISOException {
      System.setProperty("java.net.preferIPv4Stack", "true");
      EvnMsg msg = new EvnMsg();
      ISO93APackager packager = new ISO93APackager(); 
      msg.setPackager(packager);
      msg.setMTI("1804");
      msg.setAuditNumber("124125");
      ASCIIChannel channel  = new ASCIIChannel("Server_IP", PORT, packager);
      channel.connect();
      channel.send(msg);
      channel.receive();
      //channel.disconnect();
  }
  </code></pre>
  
  <p>Here is Server : </p>
  
  <pre><code>public static void main(String[] args) throws IOException, ISOException {
      ISO93APackager packager = new ISO93APackager();
      ServerChannel channel = new ASCIIChannel (packager);
      channel.accept(new ServerSocket(PORT));
      ISOMsg isoMsg = channel.receive();
  
      System.out.println("Received");
  }
  </code></pre>
  
  <p>Server is received message, but the problem is that the bitmap has value of -1</p>
  
  <p><img src="https://i.stack.imgur.com/dT3Jb.png" alt="enter image description here"></p>
  
  <p>So did i made a mistake? Which is the right way to receive the message?</p>