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.
Not really. One of the points of having factories is to hide the details of object instantiation, so we either don't, or shouldn't, or can't, concern ourselves with details like whether the object being retrieved is a singleton or not.