[...]
while (pointerInBytesArray < listOfDataChatsRecords.size()) {

            eightBytesForTimeStamp = ByteBuffer.wrap(getByteBufor(8)).order(ByteOrder.LITTLE_ENDIAN).getDouble();
            time = new Date(TimeUnit.MILLISECONDS.convert(getUnixTimeStamp(eightBytesForTimeStamp), TimeUnit.SECONDS));
            flags = ByteBuffer.wrap(getByteBufor(4)).order(ByteOrder.LITTLE_ENDIAN).getInt();
            size = ByteBuffer.wrap(getByteBufor(4)).order(ByteOrder.LITTLE_ENDIAN).getInt();
            id = ByteBuffer.wrap(getByteBufor(4)).order(ByteOrder.LITTLE_ENDIAN).getInt();
            unknown = ByteBuffer.wrap(getByteBufor(4)).order(ByteOrder.LITTLE_ENDIAN).getInt();

            int sizeOfMsg = 0;
            if (pointerInBytesArray + size > listOfDataChatsRecords.size()) {
                sizeOfMsg = listOfDataChatsRecords.size() - pointerInBytesArray;
            } else {
                sizeOfMsg = size;
            }

            try {
                msg = new String(getByteBufor(sizeOfMsg), "Cp1250");
            } catch (UnsupportedEncodingException e) {
                System.out.println("Problem z kodowaniem");
                e.printStackTrace();
            }

            listOfDataObjects.add(new DatChat(time, flags, size, id, unknown, msg));
  
  [...]