Sun and Canonical have announced that the “GlassFish” reference implementation of the Java EE 5 Application Server will be made available for Ubuntu Linux.

Canonical furthered its push into the enterprise by announcing imminent certification and support for Ubuntu on Sun’s x64 (x86, 64-bit) hardware, powered by AMD Opteron processors. Canonical had earlier announced certification of Ubuntu on Sun’s UltraSPARC(R) processor-based Sun Fire T1000 and T2000 servers featuring CoolThreads technology. The expansion announced today includes support for the Sun Fire X4100 and X4200 servers, as well as the Sun Ultra 20 and 40 Workstations. This means that enterprises will now be able to run Ubuntu on Sun’s x64 systems with the confidence of five-year software support provided by Canonical.