"Solaris being canned, at least 50% of teams to be RIF'd in short term. Hardware teams being told to cease development. There will be no Solaris 12, final release will be 11.4. Orders coming straight from Larry."
https://www.thelayoff.com/t/KBEVoB1
The crazy people that said that Oracle bought Sun just to shut it down and use the patents to sue Google are looking pretty non-crazy now. I guess once the lawsuit was lost (and boy was it expensive) the shutdown was inevitable.
Of course, not funding SPARC development so that it could stay competitive with Intel didn't help much either.