keep moving!

Sync:獲得/釋放(acquire/release) 協議

            Mutex
            ReentrantLock
            Latch
            CountDown
            Semaphore
            WaiterPreferenceSemaphore
            FIFOSemaphore
            PrioritySemaphore

Channel:放置/取走(put/take) 協議
            LinkedQueue
            BoundedLinkedQueue
            BoundedBuffer
            BoundedPriorityQueue
            SynchronousChannel
            Slot        

Executor:執行Runnable任務
       PooledExecutor
             ThreadedExecutor
             QueuedExecutor
             FJTaskRunnerGroup

參考資料
            http://www.huihoo.org/rt/util_concurrent_tools.html

            http://g.oswego.edu/dl/classes/EDU/oswego/cs/dl/util/concurrent/intro.html
            
            http://azure.blogbus.com/logs/349630.html

            http://sunyung.blog.ccidnet.com/blog-htm-do-showone-type-blog-itemid-121264-uid-43439.html