JRE 8 Not working on 4.0.X

I have instaled LibreOffice before JRE-8 but now it says that i got no JRE instaled, how can i fix this isue? does this happened to some one ?
Many thanks

JRE 8? I thought that had been delayed until 2014? Oh wait, are you using the Early Access version? Which operating system are you using?