@Test
  public void startShutdownTest() throws InstantiationException, IOException {
    NioServer nioServer = getNettyServer(null);
    nioServer.start();
    nioServer.shutdown();
  }
Tests {@link NettyServer#start()} and {@link NettyServer#shutdown()} given good input.
@throws InstantiationException
@throws IOException
ambry-rest/src/test/java/com/github/ambry/rest/NettyServerTest.java