Welcome to LQ!
Someone may chime in later but you should know;
Excerpt from OpenSSO Wiki;
OpenSSO was an open source access management and federation server platform.
Oracle completed their acquisition of Sun Microsystems in February 2010 and shortly thereafter removed OpenSSO downloads from their website in an unannounced policy change. OpenSSO will continue to be developed and supported by ForgeRock under the name of "OpenAM
site has loads of useful information. Look at the OpenAM wiki
This is the home of all things OpenAM; downloads, HowTos, documentation, developers notes et cetera.
FAQs, Howto & documentation is also available.
Be sure to read the sample(s) & information under 'Home'. Look at 'OpenAm How do I' under 'Home' on the left of the page.