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;
}

Thank you.