connector.setHandler(new IoHandlerAdapter());
ConnectFuture future = connector.connect(new InetSocketAddress("127.0.0.1", port));
future.awaitUninterruptibly();
WriteFuture writeFuture = future.getSession().write(IoBuffer.allocate(16).putInt(0).flip());
writeFuture.awaitUninterruptibly();
assertTrue(writeFuture.isWritten());
future.getSession().close(true);
for (int i = 0; i < 30; i++) {