There are plenty of helpful resources on JRockit and JRockit Mission Control available on the Oracle Technology Network, such as blogs, articles, and forums. JRockit developers and support staff are continuously monitoring the forums, so if an answer to a particular question cannot be found in the forums already, it is usually answered within a few days. Some questions are asked more frequently than others and have been made into "stickies"—forum posts that will stay at the top of the topic listings. There is, for example, a "sticky" available on how to acquire license files for older versions of JRockit.
The JRockit Forum can, at the time of writing, be found here:
http://forums.oracle.com/forums/forum.jspa?forumID=561
Here are the locations of some popular JRockit blogs:
18.188.119.81