Mine

 public String g64encoded(int i)
    {
        String s = "";
        int j = i;
        int k = i % 3;
        if(k != 0)
            i += 3 - k;
        for(int l = 0; l < i; l += 3)
        {
            s = s + base64enctab[data[l + pos] >> 2 & 0x3f];
            if(l + 3 > j)
            {
                if(k == 1)
                {
                    s = s + base64enctab[data[l + pos] << 4 & 0x30];
                    s = s + "==";
                } else
                if(k == 2)
                {
                    s = s + base64enctab[data[l + pos] << 4 & 0x30 | data[l + 1 + pos] >> 4 & 0xf];
                    s = s + base64enctab[data[l + 1 + pos] << 2 & 0x3c];
                    s = s + "=";
                }
            } else
            {
                s = s + base64enctab[data[l + pos] << 4 & 0x30 | data[l + 1 + pos] >> 4 & 0xf];
                s = s + base64enctab[data[l + 1 + pos] << 2 & 0x3c | data[l + 2 + pos] >> 6 & 3];
                s = s + base64enctab[data[l + 2 + pos] & 0x3f];
            }
        }

        return s;
    }