code: public final MessageType getJsMessageType() {
          /* Get the int value and get the corresponding MessageType to return */
          Byte mType = (Byte) jmo.getField(JsHdrAccess.MESSAGETYPE);
          return MessageType.getMessageType(mType);
      }
docs: /*
  Get the value of the JsMessageType from the message header.
  
  Javadoc description supplied by JsMessage interface.