Sounds really good, but ... there is a small restriction inside this news announcement:
Premium offerings such as JRockit Mission Control, JRockit Real Time, Java for Business and Enterprise Support will continue to be made available for an additional chargeSo only the core functionalities are free of charge, the cool features like Mission Control or Real Time still have to be paid :-(

that bites....
Anonymous
October 31, 2011 12:23 AMHi Dirk
JRockit Mission Control is free for development use. During phase of development, this product is very useful to detect bottleneck that could be improved during the development lifecycle.
http://www.oracle.com/technetwork/java/javase/terms/license/index.html
B. SOFTWARE INTERNAL USE FOR DEVELOPMENT LICENSE GRANT. Subject to the terms and conditions of this Agreement and restrictions and exceptions set forth in the README File incorporated herein by reference, including, but not limited to the Java Technology Restrictions of these Supplemental Terms, Oracle grants you a non-exclusive, non-transferable, limited license without fees to reproduce internally and use internally the Software complete and unmodified for the purpose of designing, developing, and testing your Programs.
Cheers
Ludo
Ludovic DESSEMON
December 15, 2011 11:59 PM