JPype, Jython or JEPP?

[RC]

Dear Python Experts/Programmers,

I'm going to write a Python program to
access some Java class methods from our *.jar
file.
In your opinion, which way is the good (not the best)
way to do that?

JPype?
http://sourceforge.net/projects/jpype

Jython?
http://www.jython.org/Project/

JEPP? (I don't think so)
http://sourceforge.net/projects/jepp

Others?
http://..... ?

Thank Q very much in advance!