不应该将Solinger设置为假断开此连接吗?

据我所知,linger是一种设置,允许连接在关闭后保持一定的延迟,以便最终数据有时间读取。

我有一个例子:

@Ignore
public class SocketTTest
{
    @Test
    public void socketTest() throws Throwable
    {
        new Thread(() -> {
            try
            {
                ServerSocket serverSocket = new ServerSocket(5555);

                while(true)
                {

                    //keep listening
                    Socket socket = serverSocket.accept();
                    socket.setSoLinger(false, 0);

                    InputStream in = socket.getInputStream();

                    System.out.println(in.read());

                    Thread.sleep(2000);

                    System.out.println(in.read());

                    in.close();
                    socket.close();
                    System.exit(0);
                }
            }
            catch(Throwable ex)
            {
                ex.printStackTrace();
            }
        }).start();

        Socket socket = new Socket("localhost", 5555);
        socket.setSoLinger(false, 0);
        OutputStream out = socket.getOutputStream();
        out.write(1);
        out.write(2);
        out.close();
        socket.close();

        synchronized(this)
        {
            wait();
        }
    }
}

以及输出

1 
2

如何读取2?内衣已禁用,睡眠结束时插座不应处于不可读状态?