Specifically, do you worry that Microsoft is going to eventually do the Microsoft thing and horribly fuck it up for everyone? I've really grown to appreciate the language itself, but I'm wary of it getting too ingrained at work only to have the rug pulled out from under us when it's become hard to back out.
Edit: not really "pulling the rug", but, you know, doing the Microsoft classic.
I actually drew that same Oracle comparison. They've made the occasionally bullshit effort, e.g. the API stuff with Google, but otherwise Java is just kinda Java. Fair point.