type lazyInit struct {
	done uint32
	m    sync.Mutex
}

func (l *lazyInit) Do(f func() error) error {
	if atomic.LoadUint32(&l.done) == 0 {
		return l.doSlow(f)
	}
	return nil
}

func (l *lazyInit) doSlow(f func() error) error {
	l.m.Lock()
	defer l.m.Unlock()
	if atomic.LoadUint32(&l.done) == 0 {
		if err := f(); err != nil {
			return err
		}

        CrawlerSystemException exception1 = new CrawlerSystemException(exceptionCause);
        assertSame(exceptionCause, exception1.getCause());

        // With Error cause
        Error errorCause = new Error("Error cause");
        CrawlerSystemException exception2 = new CrawlerSystemException(errorCause);
        assertSame(errorCause, exception2.getCause());

        // With RuntimeException cause

// the directory itself, if the dirPath doesn't exist this function doesn't return
// an error.
func readDirFn(dirPath string, filter func(name string, typ os.FileMode) error) error {
	d, err := Open(dirPath)
	if err != nil {
		if osErrToFileErr(err) == errFileNotFound {
			return nil
		}
		return osErrToFileErr(err)
	}
	defer d.Close()

	maxEntries := 1000
	for {
		// Read up to max number of entries.

	if err := DB.AutoMigrate(&Harumph{}); err != nil {
		t.Fatalf("Failed to migrate with default value, got error: %v", err)
	}

	harumph := Harumph{Email: "******@****.***"}
	if err := DB.Create(&harumph).Error; err != nil {
		t.Fatalf("Failed to create data with default value, got error: %v", err)

        in 100..199 -> "Informational"
        in 200..299 -> "OK"
        in 300..399 -> "Redirection"
        in 400..499 -> "Client Error"
        in 500..599 -> "Server Error"
        else -> "Mock Response"
      }
    return apply { status = "HTTP/1.1 $code $reason" }
  }

  fun clearHeaders() =
    apply {
      headersBuilder = Headers.Builder()
    }

  fun addHeader(header: String) =

}

// CheckCrossDevice - check if any list of paths has any sub-mounts at /proc/mounts.
func CheckCrossDevice(absPaths []string) error {
	return checkCrossDevice(absPaths, procMountsPath)
}

// Check cross device is an internal function.
func checkCrossDevice(absPaths []string, mountsPath string) error {
	mounts, err := readProcMounts(mountsPath)
	if err != nil {
		return err
	}
	for _, path := range absPaths {

// The function returns whether the statement passed the WHERE clause and should be outputted.
func (e *SelectStatement) Eval(input, output Record) (Record, error) {
	ok, err := e.isPassingWhereClause(input)
	if err != nil || !ok {
		// Either error or row did not pass where clause
		return nil, err
	}

	if e.selectAST.Expression.All {
		// Return the input record for `SELECT * FROM
		// .. WHERE ..`

    message = "moved to val",
    replaceWith = ReplaceWith(expression = "url"),
    level = DeprecationLevel.ERROR,
  )
  fun url(): HttpUrl = url

  @JvmName("-deprecated_dns")
  @Deprecated(
    message = "moved to val",
    replaceWith = ReplaceWith(expression = "dns"),
    level = DeprecationLevel.ERROR,
  )
  fun dns(): Dns = dns

  @JvmName("-deprecated_socketFactory")
  @Deprecated(

     */
    public String url;

    /**
     * The minimum error count field for filtering failure URLs.
     */
    public String errorCountMin;

    /**
     * The maximum error count field for filtering failure URLs.
     */
    public String errorCountMax;

    /**
     * The error name field for searching failure URLs by error type.
     */
    public String errorName;

    }

    /**
     * Handle channel failure
     *
     * @param failedChannel failed channel
     * @param error error that caused failure
     */
    public void handleFailure(ChannelInfo failedChannel, Exception error) {
        log.warn("Channel {} failed: {}", failedChannel.getChannelId(), error.getMessage());

        // Mark channel as failed
        failedChannel.setState(ChannelState.FAILED);