while (true) {
          val socket = serverSocket!!.accept()
          connectionCount.incrementAndGet()
          service(socket)
        }
      } catch (e: SocketException) {
        logger.info("$threadName done accepting connections: ${e.message}")
      } catch (e: IOException) {
        logger.log(Level.WARNING, "$threadName failed unexpectedly", e)
      } finally {
        for (socket in openSockets) {

    private final T value;
    private boolean done;

    SingletonIterator(T value) {
      this.value = value;
    }

    @Override
    public boolean hasNext() {
      return !done;
    }

    @Override
    @ParametricNullness
    public T next() {
      if (done) {
        throw new NoSuchElementException();
      }
      done = true;
      return value;
    }
  }

     *
     * - If the stack overflowed after set()/setValue() stored its result, then a call to
     * setException() will be a no-op because the Future is already done.
     *
     * Both scenarios are bad: The output Future might never complete, or, if it does complete, it
     * might not run some of its listeners. The likely result is that the app will hang. (And of

   * done.
   */
  public static final class DeferredCloser {
    @RetainedWith private final CloseableList list;

    DeferredCloser(CloseableList list) {
      this.list = list;
    }

    /**
     * Captures an object to be closed when a {@link ClosingFuture} pipeline is done.
     *

 * an open file (for cached responses). Failing to close the response body will leak resources and
 * may ultimately cause the application to slow down or crash.
 *
 * Both this class and [Response] implement [Closeable]. Closing a response simply
 * closes its response body. If you invoke [Call.execute] or implement [Callback.onResponse] you

  /** True if the [activeTask] should be canceled when it completes. */
  internal var cancelActiveTask = false

  /**
   * Returns a snapshot of tasks currently scheduled for execution. Does not include the
   * currently-executing task unless it is also scheduled for future execution.
   */
  val scheduledTasks: List<Task>
    get() = taskRunner.withLock { futureTasks.toList() }

  /**

        return escapeSlow(s, i);
      }
    }
    return s;
  }

  /**
   * Escapes a single character using the replacement array and safe range values. If the given
   * character does not have an explicit replacement and lies outside the safe range then {@link
   * #escapeUnsafe} is called.
   *
   * @return the replacement characters, or {@code null} if no escaping was required
   */
  @Override

 *   <li><a href="https://dagger.dev/producers.html">Dagger Producers</a>
 * </ul>
 *
 * <p>The main purpose of {@link #addListener addListener} is to support this chaining. You will
 * rarely use it directly, in part because it does not provide direct access to the {@code Future}
 * result. (If you want such access, you may prefer {@link Futures#addCallback
 * Futures.addCallback}.) Still, direct {@code addListener} calls are occasionally useful:
 *

        value = "\"John Doe\",\"Software Engineer\",\"john.doe@example.com\",\"Loves \"\"coding\"\" and coffee\"";
        result = KuromojiCSVUtil.parse(value);
        assertEquals(4, result.length);
        assertEquals("John Doe", result[0]);
        assertEquals("Software Engineer", result[1]);
        assertEquals("john.doe@example.com", result[2]);

     * The method is invoked automatically by a successful call to {@link #cancel(boolean)
     * cancel(true)}.
     *
     * <p>The default implementation does nothing.
     *
     * @since 10.0
     */
    protected void interruptTask() {}

    /**
     * Returns true if this future was cancelled with {@code mayInterruptIfRunning} set to {@code
     * true}.