rw = t.Unwrap()
		default:
			return errNotSupported()
		}
	}
}

// Hijack lets the caller take over the connection.
// See the Hijacker interface for details.
func (c *ResponseController) Hijack() (net.Conn, *bufio.ReadWriter, error) {
	rw := c.rw
	for {
		switch t := rw.(type) {
		case Hijacker:
			return t.Hijack()
		case rwUnwrapper:
			rw = t.Unwrap()
		default:
			return nil, nil, errNotSupported()

	headersLogged bool
}

// Hijack - hijacks the underlying connection
func (lrw *ResponseRecorder) Hijack() (net.Conn, *bufio.ReadWriter, error) {
	hj, ok := lrw.ResponseWriter.(http.Hijacker)
	if !ok {
		return nil, nil, fmt.Errorf("response writer does not support hijacking. Type is %T", lrw.ResponseWriter)
	}
	return hj.Hijack()
}

// NewResponseRecorder - returns a wrapped response writer to trap

	hijacked := make(chan net.Conn)
	ts := NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		defer close(hijacked)
		hj, ok := w.(http.Hijacker)
		if !ok {
			t.Fatal("failed to hijack")
		}
		c, _, err := hj.Hijack()
		if err != nil {
			t.Fatal(err)
		}
		hijacked <- c
	}))

	var wg sync.WaitGroup
	wg.Add(1)
	go func() {
		defer wg.Done()

}

func (tw *baseTimeoutWriter) Hijack() (net.Conn, *bufio.ReadWriter, error) {
	tw.mu.Lock()
	defer tw.mu.Unlock()

	if tw.timedOut {
		return nil, nil, http.ErrHandlerTimeout
	}

	// the outer ResponseWriter object returned by WrapForHTTP1Or2 implements
	// http.Hijacker if the inner object (tw.w) implements http.Hijacker.
	conn, rw, err := tw.w.(http.Hijacker).Hijack()
	if err == nil {
		tw.hijacked = true

	rl.recordStatus(status)
	rl.w.WriteHeader(status)
}

func (rl *respLogger) Hijack() (net.Conn, *bufio.ReadWriter, error) {
	rl.hijacked = true

	// the outer ResponseWriter object returned by WrapForHTTP1Or2 implements
	// http.Hijacker if the inner object (rl.w) implements http.Hijacker.
	return rl.w.(http.Hijacker).Hijack()
}

func (rl *respLogger) recordStatus(status int) {
	rl.mutex.Lock()

import static org.junit.Assert.assertEquals;

import org.junit.Test;

public class LumberJackTest {
    @Test
    public void singsTheSong() {
        LumberJack jack = new LumberJack();
        jack.sing();
    }

        <dependency org="com.android.tools.ddms" name="ddmlib" rev="24.5.0" force="true" conf="runtime-&gt;compile(*),runtime(*),master(*)"/>
        <dependency org="com.android.tools.jack" name="jack-api" rev="0.9.0" force="true" conf="runtime-&gt;compile(*),runtime(*),master(*)"/>
        <dependency org="com.android.tools.jill" name="jill-api" rev="0.9.0" force="true" conf="runtime-&gt;compile(*),runtime(*),master(*)"/>

-minussign:*:21:root
# Next line is invalid (empty group name)
:*:22:root

daemon:*:1:root
    indented:*:7:root
# comment:*:4:found
     # comment:*:4:found
kmem:*:2:root
manymembers:x:777:jill,jody,john,jack,jov,user777
` + largeGroup()

func largeGroup() (res string) {
	var b strings.Builder
	b.WriteString("largegroup:x:1000:user1")
	for i := 2; i <= 7500; i++ {
		fmt.Fprintf(&b, ",user%d", i)
	}