Sun Java System Instant Messaging is a secure instant messaging platform as well as a feature-rich instant messaging solution. It supports a variety of hardware and software platform options.
Platforms & Requirements
Server Operating Systems
Solaris 10 OS for SPARC, x86, and x64 platforms, including Zones support
Red Hat Enterprise Linux 4 and 5 (64-bit version)
Client Operating Systems
Sun Solaris 10 and 9 Operating Systems for SPARC platforms and Solaris 10 and 9 Operating Systems for x64/x86 platforms
Apple Mac OS 10.1 or later
Microsoft Windows 98, ME, NT (SP 6a), 2000, and XP
Red Hat Linux 7.2 or later
System Requirements
Server Deployments: Java 2 Runtime Environment, Standard Edition 1.6 (or later)
Client Deployments on All Systems: Java 2 Runtime Environment, Standard Edition 1.6 (or later)
Microsoft Windows Client Deployments Only: Java 2 Runtime Environment, Standard Edition 1.6 (or later)