As the ordinary JDK package comes with a limited Java Cryptography Extension (JCE) package. This package is limited so you need to download the extended package from SUN. You find it on the JDK download page all the way at the bottom.

After trying countless of different approaches I finally ended up checking SourceForge. And as usual, it turned out to be the place where I should have checked in the first place. I stumbled upon a open-source project named ftp4che. That particular project gave you easy access to connect to FTP servers using SSL and TLS, [...]