* </ul>
   *
   * <p>Example usage:
   *
   * {@snippet :
   * // Fall back to a secondary input stream in case of IOException.
   * ClosingFuture<InputStream> inputFuture =
   *     firstInputFuture.catchingAsync(
   *         IOException.class, (closer, x) -> secondaryInputStreamClosingFuture(), executor);
   * }
   *

import assertk.assertions.isEmpty
import assertk.assertions.isEqualTo
import assertk.assertions.isFalse
import assertk.assertions.isNotNull
import assertk.assertions.isNull
import assertk.assertions.isTrue
import java.io.IOException
import java.net.CookieManager
import java.net.HttpURLConnection
import java.net.ResponseCache
import java.text.DateFormat
import java.text.SimpleDateFormat
import java.util.Date
import java.util.Locale

    parameter to be non-null was an unintended signature change in OkHttp 4.0.

 *  New: `EventListener.retryDecision()` is called each time a request fails with an `IOException`.
    It notifies your listener if OkHttp will retry.

 *  New: `EventListener.followUpDecision()` is called each time a response is received. It notifies