Fork Join (jsr 166y) framework is slated for Java 7 and is absolutely cool and is no surprise coming from Doug Lea. I had to try something out with it since the packages compiled on java 6 is also availalbe. I tried parallizing the quicksort algorithm using this and looks like it compiles and even produces right results!!! The important part here is the use of Phaser, a resettable CountdownLatch i