Hi Daniel, htm.java is a direct port of NuPIC from Python to Java. It has all the network level features that NuPIC has, but not those of the OPF (a.k.a. Swarming). Also, it is slightly behind in development because it is totally community driven. Other than that, it is functionally equivalent - even the tests are exactly the same. But, yes - Swarming will come later...
Cheers, David
