throws TimeoutException, InterruptedException, ExecutionException {

    long timeoutNanos = unit.toNanos(timeout);
    if (timeoutNanos <= OverflowAvoidingLockSupport.MAX_NANOSECONDS_THRESHOLD) {
      return super.get(timeout, unit);
    }
    // Waiting 68 years should be enough for any program.
    return super.get(
        min(timeoutNanos, OverflowAvoidingLockSupport.MAX_NANOSECONDS_THRESHOLD), NANOSECONDS);
  }

    long timeoutNanos = unit.toNanos(time);
    return Longs.constrainToRange(timeoutNanos, 0L, (Long.MAX_VALUE / 4) * 3);
  }

  /**
   * Returns System.nanoTime() unless the timeout has already elapsed. Returns 0L if and only if the
   * timeout has already elapsed.
   */
  private static long initNanoTime(long timeoutNanos) {
    if (timeoutNanos <= 0L) {
      return 0L;
    } else {

      throws TimeoutException, InterruptedException, ExecutionException {

    long timeoutNanos = unit.toNanos(timeout);
    if (timeoutNanos <= OverflowAvoidingLockSupport.MAX_NANOSECONDS_THRESHOLD) {
      return super.get(timeout, unit);
    }
    // Waiting 68 years should be enough for any program.
    return super.get(
        min(timeoutNanos, OverflowAvoidingLockSupport.MAX_NANOSECONDS_THRESHOLD), NANOSECONDS);
  }

   * Caller must have previously sanitized timeoutNanos using toSafeNanos.
   */
  private static long remainingNanos(long startTime, long timeoutNanos) {
    // assert timeoutNanos == 0L || startTime != 0L;

    // TODO : NOT CORRECT, BUT TESTS PASS ANYWAYS!
    // if (true) return timeoutNanos;
    // ONLY 2 TESTS FAIL IF WE DO:
    // if (true) return 0;

  }

  @Test
  fun defaultConfigIsNoTimeout() {
    val request =
      Request.Builder()
        .url(server.url("/"))
        .build()
    val call = client.newCall(request)
    assertThat(call.timeout().timeoutNanos()).isEqualTo(0)
  }

  @Test
  fun configureClientDefault() {
    val request =
      Request.Builder()
        .url(server.url("/"))
        .build()
    val timeoutClient =
      client.newBuilder()

  private fun readHeader() {
    if (closed) throw IOException("closed")

    // Disable the timeout to read the first byte of a new frame.
    val b0: Int
    val timeoutBefore = source.timeout().timeoutNanos()
    source.timeout().clearTimeout()
    try {
      b0 = source.readByte() and 0xff
    } finally {
      source.timeout().timeout(timeoutBefore, TimeUnit.NANOSECONDS)
    }

          } else if (active == 0) {
            break;
          } else if (timed) {
            f = futureQueue.poll(timeoutNanos, TimeUnit.NANOSECONDS);
            if (f == null) {
              throw new TimeoutException();
            }
            long now = System.nanoTime();
            timeoutNanos -= now - lastTime;
            lastTime = now;
          } else {
            f = futureQueue.take();
          }

          } else if (active == 0) {
            break;
          } else if (timed) {
            f = futureQueue.poll(timeoutNanos, TimeUnit.NANOSECONDS);
            if (f == null) {
              throw new TimeoutException();
            }
            long now = System.nanoTime();
            timeoutNanos -= now - lastTime;
            lastTime = now;
          } else {
            f = futureQueue.take();
          }

    // NOTE: if timeout < 0, remainingNanos will be < 0 and we will fall into the while(true) loop
    // at the bottom and throw a timeoutexception.
    final long timeoutNanos = unit.toNanos(timeout); // we rely on the implicit null check on unit.
    long remainingNanos = timeoutNanos;
    if (Thread.interrupted()) {
      throw new InterruptedException();
    }
    Object localValue = value;

    // NOTE: if timeout < 0, remainingNanos will be < 0 and we will fall into the while(true) loop
    // at the bottom and throw a timeoutexception.
    final long timeoutNanos = unit.toNanos(timeout); // we rely on the implicit null check on unit.
    long remainingNanos = timeoutNanos;
    if (Thread.interrupted()) {
      throw new InterruptedException();
    }
    Object localValue = value;