This week's book giveaway is in the OCAJP forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide 1Z0-808 and have Jeanne Boyarsky & Scott Selikoff on-line! See this thread for details.
Whether a thread is stopped by increasing the priority of another thread depends on the make of the VM. Some VMs do stop the execution of a thread in such a case, others don't. Please let me know if I'm mistaken.