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.
with the benefits of a database (like acid operations)
Includes support for refactoring (schema evolution, so your objects won't break on class changes like in serialization) and transparent persistence. For example, if you're interested in persisting objects inside a collection transparently (using no mappings, annotations, etc) try: