So after training and saving my model. I tried to load it again only to find that there's no load function in the java wrappers. After some googling I found that this is a bug in the wrappers. It looks like the python wrappers are fixed but no word on the java ones.
So it's are a work around for this? Because training the model each run is a bit too much. I'm using OpenCV 3.1.0