Ever asked yourself why the JDK isn't shipped with a builtin base64 encoder/decoder? Well, since JDK 6 there is one - although it's quite buried: javax.xml.bind.DatatypeConverter.
Usage is quite simple:
// encode byte to base64 String String myBase64String = DatatypeConverter.printBase64Binary(myByteData); // decode base64 String to byte byte myByteData = DatatypeConverter.parseBase64Binary(myBase64String);
So no need to add a thirdparty library just for decoding/encoding base64 anymore.