public Overlord() { try { selector = Selector.open(); queue = new ConcurrentLinkedQueue<Communicator>(); // open the pipe and register it with our selector pipe = Pipe.open(); pipe.sink().configureBlocking(false); pipe.source().configureBlocking(false); pipe.source().register(selector, SelectionKey.OP_READ); } catch (IOException e) { throw new RuntimeException("select() failed"); } }