Java - Base64.decodeBase64(text) different results on Windows and Linux

Question

I have:

String text = // same String (text)
byte[] byteArray = org.apache.commons.codec.binary.Base64.decodeBase64(text);
System.out.println("Length: " + byteArray.length);

And the results in Windows is 31 and on Linux it's 32. I tried with sun.misc.BASE64Decoder and pretty much had the same issue...

How come the results are different lengths on the different operating systems, and how do I make it fix it so that it works on both?

Where does text come from? Are you sure it's the same in both cases? — axtavt
– axtavt, Commented Apr 23, 2012 at 18:52
@axtavt I think you might be onto something. When I do text.length on linux and Windows, there's a difference. The linux version is longer. It's taken from the command line. — Stephane Grenier
– Stephane Grenier, Commented Apr 23, 2012 at 19:00
Just solved it. Eureka!! The command line argument in linux has to be between single quotes otherwise the args[x] are not equal in windows and linux. Wth is that about? — Stephane Grenier
– Stephane Grenier, Commented Apr 23, 2012 at 19:10
@Stephane: we could tell you if you showed us what text was. — Keith Randall
– Keith Randall, Commented Apr 23, 2012 at 19:49

user507484 · Accepted Answer · 2012-04-23 18:44:54Z

3

Probably because the character encoding used by default on Windows is different that the one on Linux.

Can you try with a simple byte arrary , instead of String as the input.

answered Apr 23, 2012 at 18:44

user507484

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2 Comments

Eugene Retunsky Over a year ago

Unlikely there is something to do with encodings. Base64 is ASCII based.

Stephane Grenier Over a year ago

I just tried byte[] ciphertextArray = Base64.decodeBase64(text.getBytes()); and I still got the same results.

Erre Efe · Accepted Answer · 2012-04-23 18:44:06Z

1

I guess it could be caused by the line separator which defaults to ("\r\n") and ("\n") respectively. Why don't you try without those (well, if that's the problem).

Just my two cents.

answered Apr 23, 2012 at 18:44

Erre Efe

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1 Comment

Stephane Grenier Over a year ago

The string doesn't contain these characters

Stephane Grenier · Accepted Answer · 2012-04-26 01:31:41Z

1

In this specific case the issue was the String text was different. When loading from the command line, in Linux you have to add single quotes before and after the text in the command line otherwise it appends something to the String which Windows doesn't.

answered Apr 26, 2012 at 1:31

Stephane Grenier

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