Program: 156037
Project: 156037
Buggy source:
@Override protected Object decode(Channel channel,SocketAddress remoteAddress,Object msg) throws Exception {
  Parser parser=new Parser(PATTERN,(String)msg);
  if (!parser.matches()) {
    return null;
  }
  Position position=new Position();
  position.setProtocol(getProtocolName());
  position.set(Position.KEY_ARCHIVE,parser.next().equals("String_Node_Str"));
  position.setValid(true);
  if (!identify(parser.next(),channel,remoteAddress)) {
    return null;
  }
  position.setDeviceId(getDeviceId());
  if (parser.hasNext(8)) {
    position.setLatitude(parser.nextCoordinate(CoordinateFormat.HEM_DEG_MIN_MIN));
    position.setLongitude(parser.nextCoordinate(CoordinateFormat.HEM_DEG_MIN_MIN));
  }
  if (parser.hasNext(4)) {
    position.setLatitude(parser.nextCoordinate(CoordinateFormat.HEM_DEG));
    position.setLongitude(parser.nextCoordinate(CoordinateFormat.HEM_DEG));
  }
  position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt()));
  position.setCourse(parser.nextInt());
  if (parser.hasNext(3)) {
    position.set("String_Node_Str",parser.nextInt());
    position.set("String_Node_Str",parser.nextInt());
    position.set("String_Node_Str",parser.nextInt());
  }
  if (parser.hasNext(1)) {
    position.set("String_Node_Str",parser.nextInt());
  }
  Double internalBattery=(parser.nextDouble() + 100d) * 0.0294d;
  position.set(Position.KEY_BATTERY,internalBattery);
  position.set(Position.KEY_GSM,parser.nextInt());
  position.set("String_Node_Str",parser.next().equals("String_Node_Str"));
  position.set(Position.KEY_GPS,parser.nextInt());
  parser.next();
  DateBuilder dateBuilder=new DateBuilder().setDateReverse(parser.nextInt(),parser.nextInt(),parser.nextInt()).setTime(parser.nextInt(),parser.nextInt(),parser.nextInt());
  position.setTime(dateBuilder.getDate());
  position.set("String_Node_Str",parser.next().equals("String_Node_Str"));
  position.set(Position.KEY_IGNITION,parser.next().equals("String_Node_Str"));
  if (parser.hasNext(4)) {
    position.set("String_Node_Str",parser.next().equals("String_Node_Str"));
    parser.next();
    Integer painelStatus=parser.nextInt();
    position.set(Position.KEY_ALARM,painelStatus.equals("String_Node_Str"));
    position.set("String_Node_Str",painelStatus.equals("String_Node_Str"));
    Double mainVoltage=parser.nextDouble() / 100d;
    position.set(Position.KEY_POWER,mainVoltage);
  }
  if (parser.hasNext(5)) {
    position.set("String_Node_Str",parser.nextInt());
    parser.next();
    parser.next();
    Double mainVoltage=parser.nextDouble() / 100d;
    position.set(Position.KEY_POWER,mainVoltage);
    position.set("String_Node_Str",parser.next());
  }
  return position;
}

Fixed version (ground truth):
@Override protected Object decode(Channel channel,SocketAddress remoteAddress,Object msg) throws Exception {
  Parser parser=new Parser(PATTERN,(String)msg);
  if (!parser.matches()) {
    return null;
  }
  Position position=new Position();
  position.setProtocol(getProtocolName());
  position.set(Position.KEY_ARCHIVE,parser.next().equals("String_Node_Str"));
  position.setValid(true);
  if (!identify(parser.next(),channel,remoteAddress)) {
    return null;
  }
  position.setDeviceId(getDeviceId());
  if (parser.hasNext(8)) {
    position.setLatitude(parser.nextCoordinate(CoordinateFormat.HEM_DEG_MIN_MIN));
    position.setLongitude(parser.nextCoordinate(CoordinateFormat.HEM_DEG_MIN_MIN));
  }
  if (parser.hasNext(4)) {
    position.setLatitude(parser.nextCoordinate(CoordinateFormat.HEM_DEG));
    position.setLongitude(parser.nextCoordinate(CoordinateFormat.HEM_DEG));
  }
  position.setSpeed(UnitsConverter.knotsFromKph(parser.nextInt()));
  position.setCourse(parser.nextInt());
  if (parser.hasNext(3)) {
    position.set("String_Node_Str",parser.nextInt());
    position.set("String_Node_Str",parser.nextInt());
    position.set("String_Node_Str",parser.nextInt());
  }
  if (parser.hasNext(1)) {
    position.set("String_Node_Str",parser.nextInt());
  }
  Double internalBattery=(parser.nextDouble() + 100d) * 0.0294d;
  position.set(Position.KEY_BATTERY,internalBattery);
  position.set(Position.KEY_GSM,parser.nextInt());
  position.set("String_Node_Str",parser.next().equals("String_Node_Str"));
  position.set(Position.KEY_GPS,parser.nextInt());
  parser.next();
  DateBuilder dateBuilder=new DateBuilder().setDateReverse(parser.nextInt(),parser.nextInt(),parser.nextInt()).setTime(parser.nextInt(),parser.nextInt(),parser.nextInt());
  position.setTime(dateBuilder.getDate());
  position.set("String_Node_Str",parser.next().equals("String_Node_Str"));
  position.set(Position.KEY_IGNITION,parser.next().equals("String_Node_Str"));
  if (parser.hasNext(4)) {
    position.set("String_Node_Str",parser.next().equals("String_Node_Str"));
    parser.next();
    String painelStatus=parser.next();
    position.set(Position.KEY_ALARM,painelStatus.equals("String_Node_Str"));
    position.set("String_Node_Str",painelStatus.equals("String_Node_Str"));
    Double mainVoltage=parser.nextDouble() / 100d;
    position.set(Position.KEY_POWER,mainVoltage);
  }
  if (parser.hasNext(5)) {
    position.set("String_Node_Str",parser.nextInt());
    parser.next();
    parser.next();
    Double mainVoltage=parser.nextDouble() / 100d;
    position.set(Position.KEY_POWER,mainVoltage);
    position.set("String_Node_Str",parser.next());
  }
  return position;
}