outData[outIndex + 3] = ENCODE_TABLE[i & 0x3f];
    }

    private static void encode2pad(final byte[] inData, final int inIndex, final char[] outData, final int outIndex) {

        final int i = inData[inIndex] & 0xff;
        outData[outIndex] = ENCODE_TABLE[i >> 2];
        outData[outIndex + 1] = ENCODE_TABLE[i << 4 & 0x3f];
        outData[outIndex + 2] = PAD;