Just exactly why is Oracle so pissed off?
When Google used Java for Android, Oracle was only known for their vastly overpriced but basically me-too database - as they are now, for that matter. Sun, the then-owner of Java, was put up for sale and Google spectacularly blundered by not buying it, even though they were very much in the frame and Oracle was spoken about as a relevant contender as much as, say, McDonalds. To make matters worse, Google had the cash. It's gone down as the biggest mistake they ever made.
However, we are where we are, and have to deal with Oracle's new patent trolling business. To hear them today, you'd think they somehow had some involvement in mobile or java before all this when clearly they had neither. That must have hurt - it's like Microsoft being forced to hold their nose and go all-in with Android because of their suicide in the mobile industry. Only money, not hard work, nor innovation, has allowed Oracle this fake outrage at their "property" being violated. But this lie is constantly repeated, and in time the truth will become eroded to the point at which people may start to believe they actually did make some kind of positive contribution other than crocodile tears.