single sign on - NTLM V2 SSO Java Servlet Filter -

I need to use NTLM V2 SSO for a web application deployed on Tomcat 6 (Redhat Linux).

I know about the jcf's library but it supports the NTLM filter is not only NTLM V1 and V2. They recommend JSPA as an option, but I also have an open source solution.

I know that NTLM V1 does V2 with zero configuration, but only works on servers deployed on Windows.

Do you know about an NTLM V2 SSO NTLM Filter which is for the application servers deployed on Linux?

Project with a SourceForget java server servlet filter:

Liferay uses a NTLMv2 extension of JCIFS from the portal project.