Java Security

Hi,
I want to use the Cryptix AES toolkit located at the URL: http://www.cryptix.org/products/aes/index.html

I have consequently downloaded the file "nist-kit.zip" which (normaly) allows to use AES algorithm in Java. I followed the installation instructions, but when I follow this stape:

"How to test an installation or compile an implementation

1. To make sure that everything works so far, or if you started editing the source files, you need to compile the sources using the CompileKit command tool.

>> java NIST.CompileKit -v -h <dir-2> Foo

The unedited sources (just after a first-time installation of the Kit) are effectively a NULL block cipher, which outputs the same data it receives on input.. No compilation errors should occur."

I obtain, the following message:

**
Cryptix AES-Kit javac tool
$Revision: 1.0$
Copyright (c) 1998 Systemics Ltd. on behalf of
the Cryptix Development Team. All rights reserved.


(type "java NIST.CompileKit" with no arguments for help)


CompileKit: AES Candidate Algorithm: "Rijndael"...
CompileKit: Home directory: "/opt/AesNist/Rijndael"...

java.lang.null.PointerException
at NIST.CompileKit.run(CompileKit.java:95)
at NIST.CompileKit.main(CompileKit.java:64)
**

So if anyone could help me, perhaps someone has already used this toolkit?

Thanks.

-- Gandalf