Now that October is just around the corner, it's probably time to for another recommendation to sign up for FedEx delivery notifications (if you're in the US and think you may get the axe soon).
If you don't already have a FedEx account, go to their website and set one up a personal account. Use the same name and home address that Oracle HR has for you.
After you log in to FedEx, choose "Access FedEx Delivery Manger®" -- one of the options under Quick Access (right under login window on left side of main US site page). After you've chosen FedEx Delivery Manager, sign up for that. You can choose whether you want FedEx to send you email, text, or both about upcoming deliveries.
Getting a FedEx delivery notification the day before 9/1/17 was how many people found out their number was up. It s---ed, but hearing about it from FedEx was more than many (most?) ex-Oracle folks got from their managers.