The Solaris 9 12/02 Update release supports JMS messaging applications. These applications are based on Sun ONE Message Queue, a JMS provider. See Sun ONE Message Queue.
The Sun ONE Message Queue is a new feature for the SPARC platform in the Solaris 9 12/02 Update release. In the Solaris 9 8/03 Update release, the Sun ONE Message Queue is also available for x86 platforms.