rc.dir = c.Dir
		switch c.Dir {
		default:
			panic("reflect.Select: invalid Dir")

		case SelectDefault: // default
			if haveDefault {
				panic("reflect.Select: multiple default cases")
			}
			haveDefault = true
			if c.Chan.IsValid() {
				panic("reflect.Select: default case has Chan value")
			}
			if c.Send.IsValid() {
				panic("reflect.Select: default case has Send value")
			}

// that the effect of the panic was isolated to the active request.
// It recovers the panic, logs a stack trace to the server error log,
// and either closes the network connection or sends an HTTP/2
// RST_STREAM, depending on the HTTP protocol. To abort a handler so
// the client sees an interrupted response but the server doesn't log
// an error, panic with the value [ErrAbortHandler].
type Handler interface {

	}
	defer func() {
		s := recover()
		if s == nil {
			t.Fatal("did not panic")
		}
		if s.(string) != "callback panic" {
			t.Fatal("wrong panic:", s)
		}
		if !lockedOSThread() {
			t.Fatal("lost lock on OS thread after panic")
		}
	}()
	nestedCall(func() { panic("callback panic") })
	panic("nestedCall returned")
}

// Callback with zero arguments used to make the stack misaligned,

	if err != nil {
		return
	}
	fPanic := true
	dc.Mutex.Lock()
	defer func() {
		dc.Mutex.Unlock()

		// If f panics fPanic will remain true.
		// Ensure an error is passed to release so the connection
		// may be discarded.
		if fPanic {
			err = driver.ErrBadConn
		}
		release(err)
	}()
	err = f(dc.ci)
	fPanic = false

	return
}

// to loadPackageData.
func (pre *preload) flush() {
	// flush is usually deferred.
	// Don't hang program waiting for workers on panic.
	if v := recover(); v != nil {
		panic(v)
	}

	close(pre.cancel)
	for i := 0; i < preloadWorkerCount; i++ {
		pre.sema <- struct{}{}
	}
}

func cleanImport(path string) string {
	orig := path

		Proxy: func(*Request) (*url.URL, error) { panic("") },
		OnProxyConnectResponse: func(ctx context.Context, proxyURL *url.URL, connectReq *Request, connectRes *Response) error {
			return nil
		},
		DialContext:            func(ctx context.Context, network, addr string) (net.Conn, error) { panic("") },
		Dial:                   func(network, addr string) (net.Conn, error) { panic("") },

		group.GroupVersion = grouplessGroupVersion
		group.OptionsExternalVersion = &grouplessGroupVersion
		group.Serializer = codecs
		if _, _, err := (&group).InstallREST(container); err != nil {
			panic(fmt.Sprintf("unable to install container %s: %v", group.GroupVersion, err))
		}
	}

	// group version 1
	{
		group := template
		group.Root = "/" + prefix
		group.GroupVersion = testGroupVersion

	if err := d.Decode(props); err != nil {
		panic(err)
	}
	convertedProps := &apiextensionsinternal.JSONSchemaProps{}
	if err := apiextensions.Convert_v1_JSONSchemaProps_To_apiextensions_JSONSchemaProps(props, convertedProps, nil); err != nil {
		panic(err)
	}

	res, err := schema.NewStructural(convertedProps)
	if err != nil {
		panic(err)
	}
	return res
}

	locked := gp.lockedm != 0
	gp.lockedm = 0
	mp.lockedg = 0
	gp.preemptStop = false
	gp.paniconfault = false
	gp._defer = nil // should be true already but just in case.
	gp._panic = nil // non-nil for Goexit during panic. points at stack-allocated data.
	gp.writebuf = nil
	gp.waitreason = waitReasonZero
	gp.param = nil
	gp.labels = nil
	gp.timer = nil

			IPAddresses:  []string{"6.6.6.6"},
			Locality:     c.locality,
			DNSDomain:    "default.example.org",
			Metadata:     c.meta,
			IstioVersion: c.istioVersion,
		}
	default:
		panic(fmt.Sprintf("unsupported node type: %v", c.nodeType))
	}
	clusters := cg.Clusters(cg.SetupProxy(proxy))
	xdstest.ValidateClusters(c.t, clusters)
	if len(cg.PushContext().ProxyStatus[model.DuplicatedClusters.Name()]) > 0 {