This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
If you look at the rules for accessing a protected entity from outside the same package, you'll see that they just wouldn't apply to a top level class. So the access choices for a top level class are public and default (package).