OnionCoffee is a Tor client implemented in Java and published under the GPL licence. It was implemented mainly by Lexi Pimenidis and Andriy Panchenko at the RWTH Aachen University.
For more information about OnionCoffee please visit PRIME web page.
Please note, that due to our current work load the support from our side is very limited. However, please do not bother people from TOR with questions about OnionCoffee as the latter are not responsible for it. At first try to find out whether it is OnionCoffee specific problem.
Thank you for your understanding.