>>>>> "Robin" == Robin Green <greenrd@xxxxxxxxxxxxx> writes: Robin> There are a range of other options for "free java" virtual Robin> machines (however, they are all incomplete). Cacao looks Robin> promising but it's still a bit flaky. Not ready for production Robin> use yet. My personal favorite of the non-gcj VMs is JikesRVM. It is quite promising. The factors I look at when evaluating the free VMs: * Performance * Platform coverage * Debuggability gcj scores well enough on all of these; and more importantly, in my opinion, the other free VMs fall short on one of them. Tom