Convert a Int (in Java, big endian signed) to LittleEndian unsigned

JavaIntToLittleEndianUnsigned

private static byte[] intToLittleEndian(long numero) {
	ByteBuffer bb = ByteBuffer.allocate(4);
	bb.order(ByteOrder.LITTLE_ENDIAN);
	bb.putInt((int) numero);
	return bb.array();
}

// OR ...

private static byte[] intToLittleEndian(long numero) {
	byte[] b = new byte[4];
	b[0] = (byte) (numero & 0xFF);
	b[1] = (byte) ((numero >> 8) & 0xFF);
	b[2] = (byte) ((numero >> 16) & 0xFF);
	b[3] = (byte) ((numero >> 24) & 0xFF);
	return b;
}

int htonl(int value) {
  return ByteBuffer.allocate(4).putInt(value)
    .order(ByteOrder.nativeOrder()).getInt(0);
}

int htonl(int value) {
  if (ByteOrder.nativeOrder().equals(ByteOrder.BIG_ENDIAN) {
     return value;
  }
  return Integer.reverseBytes(value);
}


stream.write(msg.length() % 256);
stream.write((msg.length() / 256) % 256);
stream.write((msg.length() / (256 * 256)) % 256);
stream.write((msg.length() / (256 * 256 * 256)) % 256);