This week's book giveaway is in the Agile and Other Processes forum. We're giving away four copies of The Journey To Enterprise Agility and have Daryl Kulak & Hong Li on-line! See this thread for details.
Getting a deadlock is very unlikely to happen so usually..you will get an output under normal condition. Here by putting sleep method in .I am making it more probable for a deadlock to happen. I many situations..even without a sleep() method..the thread scheduler can behave in such way..that creates deadlock situation.