HotSpot Source Code

It's nice to see that the Java Research License (JRL) source download includes the source code to the HotSpot Client and Server VM's. Assuming the JRL HotSpot is identical to J2SE 5.0, it's a cool download for the developer who wants to know what the VM is doing, and how its doing it. It's a shame Microsoft's Shared Source Common Language Infrastructure (SSCLI) doesn't follow Sun's openness - maybe the up and coming Rotor release will fix this

As blogged elsewhere on the web, its nice to see JDK 6.0 snapshots are available.