JSch is a pure Java implementation of SSH2. JSch allows you to connect to an sshd server and use port forwarding, X11 forwarding, file transfer, etc., and you can integrate its functionality into your own Java programs. JSch is licensed under BSD style license.

jsch-sspi is a wraper that implements SSO GSSAPI SSPI on windows using native microsoft Win32 kerberos support secure32.dll by JNA native integration

it is best that the java used has the JCE policy package installde or use bouncycastle instead of Java's built in JCE provider http://www.bouncycastle.org/wiki/display/JA1/Provider+Installation