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.
Collections Framework Enhancements in Java SE 7
The interface TransferQueue has been added. It is a refinement of the BlockingQueue interface in which producers can wait for consumers to receive elements. One implementation of the new interface is also included in this release, LinkedTransferQueue.
The book provides a detailed discussion on this addition and a dedicated example on the use of LinedTranferQueue.