class NioEventLoop extends SingleThreadEventLoop {

    public void rebuildSelector() {
        if (!inEventLoop()) {
            execute(new Runnable() {
                @Override
                public void run() {
                    rebuildSelector0();
                }
            });
            return;
        }
        rebuildSelector0();
    }

      NioEventLoop(NioEventLoopGroup parent, Executor executor, SelectorProvider selectorProvider,
                 SelectStrategy strategy, RejectedExecutionHandler rejectedExecutionHandler);

}