EJBCA is an enterprise class PKI Certificate Authority built on J2EE technology. It is a robust, high performance, platform independent, flexible, and component based CA to be used stand-alone or integrated in other J2EE applications.
Sourceforge downloads including source: http://sourceforge.net/projects/ejbca/files/
SVN repository: http://ejbca.svn.sourceforge.net/viewvc/ejbca/
Be aware that the following list is generated by a script from lib/versions.xml file provided by Liferay