apache mina ERROR DEAD LOCK: IoFuture.await()

今天用apache mina简单写一个消息服务时在客户端logout时,服务器端报：

ERROR DEAD LOCK: IoFuture.await() was invoked from an I/O processor thread. Please use IoFutureListener or configure a proper thread model alternatively.

程序出错在：

public void logout(){
		if(session != null && session.isConnected()){
			session.close(false).awaitUninterruptibly(20000); //这里抛出上面的异常
			//session.close(true);
		}
	}

服务器代码：

NioSocketAcceptor acceptor = new NioSocketAcceptor();
		
		//增加filter列表
		DefaultIoFilterChainBuilder  chain = acceptor.getFilterChain();
		chain.addLast( "logger", new LoggingFilter() ); 
		chain.addLast("myChin", new ProtocolCodecFilter(new ObjectSerializationCodecFactory()));
		
		//消息处理
		acceptor.setHandler(new MessageHandler());
		acceptor.bind(new InetSocketAddress(IP, PORT));

网上查找说在单线程模式下不能用future.awaitUninterruptibly()。增加ExecutorFilter就能解决。

chain.addLast("exceutor", new ExecutorFilter()); 

看来自己对异步