> I hope you use C to write the VM for Harmony. > > The reason is, that I think, that the best is, if Harmony is nearly 100% > compatible to Suns Java. > > If you write the VM in Java itself, then there existing some problems: > 1. you need a native-code compiler (like gcj) to create it. And if Harmony > itself is a native-code compiler it is not 100% compatible to Suns JVM.
This isn't necessarily so. While there are bootstrapping issues, VMs like JikesRVM compile themselves under normal operation. > 2. I don't know how you want to create a JNI-Interface for C, if the JVM > is > written in Java. This has been done successfully by existing Java-in-Java virtual machines. JikesRVM is open source - you could read the code and find out how it does it if you want :) cheers, Robin
