a must read:
http://www.documentfoundation.org/faq/also be warned that the version of LibreOffice offered on the new site is OpenOffice 3.3
beta..Okay, I tried it already weeks before this story with Oracle and the split, and it was obviously a non-finish version so I reverted back to 3.21. Now it shouldn't be long until LibreOffice delivers the final version of 3.3.
As to Java...can't tell what's going to happen. Not binding java with the office suite isn't a problem at all and you can install Java separately (stating obvious things here). No the problem is whether or not LibreOffice will require Java, and how it would run without Java. This said it's always been possible to run OOO without Java, just a few minor restrictions in the interface. There's a web page giving the details, i don't have the link anymore, it just shows what works and what doesn't in OOO when Java isn't installed. Now I hope that "LibreOffice" won't need java at all to be honest. java has vulnerabilities, is slow etc...
My guess is that the team there will dismiss Java and use something else,as I can't see an Open Source foundation pay a fee to Oracle...time will tell...