* * If the proxy is configured explicitly as [Proxy.NO_PROXY].
   * * If the proxy selector returns only [Proxy.NO_PROXY].
   * * If the proxy selector returns an empty list or null.
   *
   * Otherwise it lists the proxies in the order they will be attempted.
   *
   * @param url a URL with only the scheme, hostname, and port specified.
   */
  open fun proxySelectEnd(
    call: Call,
    url: HttpUrl,

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There is a mirror of the repository at https://github.com/golang/go.

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        return determineValid(value);
    }

    /**
     * Determines if the given value is a valid cron expression.
     * @param value the value to validate
     * @return true if valid, false otherwise
     */
    protected boolean determineValid(final String value) {
        if (StringUtil.isNotBlank(value) && !LaCronUtil.isCronExpValid(value)) {
            return false;
        }
        return true;
    }

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 THE SOFTWARE.