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.
I definitely see some advantages to use Groovy in certain use cases. But what I wonder is how scalable is Groovy? Will it perform in big e-commerce sites just as good as in smaller ones? Can you name any success stories?