www.pubnub.com - PubNub Real-time Push Service in the Cloud. http://www.pubnub.com/tutorial/java-push-api
Please reference the unit-tests and examples for usage on basic functionality, including presence(), here_now(), and detailedHistory().
JDK 1.7 required to run the precompiled tests and examples in 3.3/test. Example usage:
/opt/jdk1.7.0_04/bin/java -jar PubnubUnitTest.jar