Network Shutdown?

Whenever I run my network (which I'm doing inside Eclipse Galileo 3.5.2 on a MacBookPro i7-620M) and it's done, it appears there are other threads still running because I have to hit the 'terminate' button in the console window after my program has ended. My program does other things and if I select any of those other options and then quit the program, I don't have to 'terminate' - it terminates as expected. Only when I run the network does it not fully shutdown. My network is quite simple (see below) so I'm wondering if maybe BasicNetwork needs a 'shutdown' method or is there something I'm not currently doing that I should be? Thanks

FeedForwardPattern ffp = new FeedForwardPattern();
ffp.setActivationFunction(new ActivationSigmoid());
ffp.setInputNeurons(neurons);
ffp.setOutputNeurons(neurons);
ffp.addHiddenLayer(neurons * 2);
BasicNetwork network = ffp.generate();
network.getStructure().finalizeStructure();
network = trainNetwork(network, rate, trainInput, trainIdeal); // this method calls train.finishTraining() when done
NeuralData output = network.compute(normalizeData(data, max));