private static void grow(int size) throws IOException {
    for (int i = 0; i < size - maxSelectors; i++) {
      selectors.add(Selector.open());
    }
  }
private static void grow ( int size ) throws IOException { for ( int i = 0 ; i < size - maxSelectors ; i ++ ) { selectors . add ( Selector . open ( ) ) ; } }
Increase <code>Selector</code> pool size