// the upstream reader after close has been called.
type disconnectReader struct {
	r  io.Reader
	mu sync.Mutex
}

func (d *disconnectReader) Read(p []byte) (n int, err error) {
	d.mu.Lock()
	defer d.mu.Unlock()
	if d.r != nil {
		return d.r.Read(p)
	}
	return 0, errors.New("reader closed")
}

func (d *disconnectReader) Close() error {
	d.mu.Lock()
	d.r = nil

	}
	if !closeCheck.closed {
		t.Errorf("body should have been closed")
	}
	if g, e := logBuf.String(), outErr.Error(); !strings.Contains(g, e) {
		t.Errorf("ErrorLog %q does not contain %q", g, e)
	}
}

type checkCloser struct {
	closed bool
}

func (cc *checkCloser) Close() error {
	cc.closed = true
	return nil
}

    }

    @Override
    public void enqueue(Runnable task) {
        addToQueue(task);
    }

    private void addToQueue(Runnable task) {
        if (closed) {
            throw new IllegalStateException("The worker has already been closed. Cannot add more work to queue.");
        }
        try {
            workQueue.put(task);
        } catch (InterruptedException e) {

		c, err := d.Dial("tcp", a.String())
		if err == nil {
			Println("did dial")
			go func() {
				time.Sleep(time.Duration(rand.Intn(500)) * time.Millisecond)
				c.Close()
				Println("closed dial")
			}()
		}
		// Don't run out of ephemeral ports too quickly:
		time.Sleep(250 * time.Millisecond)
	}
}

func stressNet() {

    }

    def "can receive request for lock that is already closed"() {
        when:
        int port = handler.reservePort()
        handler.start(10, { assert false })
        sleep(300) //so that it starts receiving

        //close the lock
        handler.stop(10)

        //receive request for lock that is already closed
        client.maybePingOwner(port, 10, "lock 1", 50000, null)

	}

	return n, nil
}

// Close closes the connection.
func (c *Conn) Close() error {
	// Interlock with Conn.Write above.
	var x int32
	for {
		x = c.activeCall.Load()
		if x&1 != 0 {
			return net.ErrClosed
		}
		if c.activeCall.CompareAndSwap(x, x|1) {
			break
		}
	}
	if x != 0 {
		// io.Writer and io.Closer should not be used concurrently.

func (m *muxClient) doPing(respHandler chan<- Response) (ok bool) {
	m.respMu.Lock()
	if m.closed {
		m.respMu.Unlock()
		// Already closed. This is not an error state;
		// we may just be delivering the last responses.
		return true
	}

	// Only check ping when not closed.
	if got := time.Since(time.Unix(0, atomic.LoadInt64(&m.LastPong))); got > m.clientPingInterval*2 {
		m.respMu.Unlock()

			}
			rows.closemu.Lock()
			*d = Rows{
				dc:          rows.dc,
				releaseConn: func(error) {},
				rowsi:       s,
			}
			// Chain the cancel function.
			parentCancel := rows.cancel
			rows.cancel = func() {
				// When Rows.cancel is called, the closemu will be locked as well.
				// So we can access rs.lasterr.
				d.close(rows.lasterr)
				if parentCancel != nil {

	}
	arch, err := NewArchive(f)
	if err != nil {
		f.Close()
		return nil, err
	}
	arch.closer = f
	return arch, nil
}

// Close closes the Archive.
// If the Archive was created using NewArchive directly instead of OpenArchive,
// Close has no effect.
func (a *Archive) Close() error {
	var err error
	if a.closer != nil {
		err = a.closer.Close()
		a.closer = nil
	}
	return err
}

		pods: pods,
	}, nil
}

func (z *ztunnelServer) Close() error {
	return z.listener.Close()
}

func (z *ztunnelServer) Run(ctx context.Context) {
	context.AfterFunc(ctx, func() { _ = z.Close() })

	for {
		log.Debug("accepting conn")
		conn, err := z.accept()
		if err != nil {
			if errors.Is(err, net.ErrClosed) {
				log.Debug("listener closed - returning")
				return
			}