Ostermiller Java Utilities contain various components such as CSV parsing, Base64 Encoding,
MD5 digest, String and Exec Helper classes.
This requires the library ostermillerutils-1.08.01.jar to be in classpath.
The following example shows decoding an input stream encoded in Base64 format.
InputStream in = new FileInputStream("abcd.enc_stream.txt");
OutputStream out = new FileOutputStream("abcd.dec_stream.txt");
Base64.decode(in, out, true);
}