I've been tasked with investigating licence server vendors.
(Note: licence servers, or "key servers", are a type of "software copy protection" wherein copies of software deployed to a site call a central licence server to see if they're allowed to run. This is more than just a licence key generation/verification algorithm!)
We need a licence client/server system with a Java API.
So far, I've found FlexNet Publisher (formerly FlexLM) and its "reboot", Reprise. I would really like to look at some more options, but I'm not having much luck searching for them. (I can't find good search terms for Google, and Wikipedia is sparse on the topic.)
Any suggestions?