code: public static final KeyPressHandler getNumericKeyPressHandler() { // NOPMD it's thread save!
      if (HandlerFactory.numericKeyPressHandler == null) {
        synchronized (NumericKeyPressHandler.class) {
          if (HandlerFactory.numericKeyPressHandler == null) {
            HandlerFactory.numericKeyPressHandler = new NumericKeyPressHandler();
          }
        }
      }
      return HandlerFactory.numericKeyPressHandler;
    }
docs: get a numeric key press handler.
  
  @return NumericKeyPressHandler