You can prevent race condition, if you use "Atomic" classes. The reason is just the thread don't separate operation get and set, example is below:
AtomicInteger ai = new AtomicInteger(2);ai.getAndAdd(5);As a result, you will have 7 in link "ai". Although you did two actions, but the both operation confirm the same thread and no one other thread will interfere to this, that means no race conditions!