Many of us forgot about Jini, and I was surprised to see how Jini is actually used in reality, production systems and that too with high performance web systems like Orbitz.com:
With Jini services, all we have to do is load the software, plug the system into the network, and fire up the application.
-Leon Chism, Orbitz VP of Development and Chief Internet Architect
And here about SOA & Jini, blog...
More info is here,
Is Jini, forgotten beauty?
If you think Jini is only for devices, it's wrong...The above Orbitz example shows how real Jini is...