c = Multisets.immutableEntry(entries.get(2), sortedMultiset.count(entries.get(2)));
      }
    }
  }

  /** Resets the contents of sortedMultiset to have entries a, c, for the navigation tests. */
  // Needed to stop Eclipse whining
  private void resetWithHole() {
    List<E> container = new ArrayList<>();
    container.addAll(nCopies(a.getCount(), a.getElement()));
    container.addAll(nCopies(c.getCount(), c.getElement()));

            fileCache.remove(path);
        }
    }

    /**
     * Shutdown the lease manager
     */
    public void shutdown() {
        log.info("Shutting down lease manager");

        // Stop cleanup executor
        if (cleanupExecutor != null) {
            cleanupExecutor.shutdown();
            try {
                if (!cleanupExecutor.awaitTermination(5, TimeUnit.SECONDS)) {

-------------------------------------------------------------------------------------------------

Note that if you interrupt Gradle in the middle of running these tasks, any boxes started
will remain running and you'll have to stop them manually with `./gradlew --stop` or
`vagrant halt`.

All the regular vagrant commands should just work so you can get a shell in a
VM running trusty by running
`vagrant up ubuntu-1804 --provider virtualbox && vagrant ssh ubuntu-1804`.

      if (expectedOldCount != 0) {
        return false;
      } else if (newCount == 0) {
        return true;
      } else {
        // if our write lost the race, it must have lost to a nonzero value, so we can stop
        return countMap.putIfAbsent(element, new AtomicInteger(newCount)) == null;
      }
    }
    int oldValue = existingCounter.get();
    if (oldValue == expectedOldCount) {
      if (oldValue == 0) {

     * It's called both during normal shutdown and in error conditions.
     */
    private static void destroyContainer() {
        if (running.getAndSet(false)) {
            TimeoutManager.getInstance().stop();
            if (logger.isDebugEnabled()) {
                logger.debug("Destroying LaContainer...");
            }
            SingletonLaContainerFactory.destroy();
            logger.info("Destroyed LaContainer.");

// by restoring normal execution and retrieves the error value passed to the
// call of panic. If recover is called outside the deferred function it will
// not stop a panicking sequence. In this case, or when the goroutine is not
// panicking, recover returns nil.
//
// Prior to Go 1.21, recover would also return nil if panic is called with
// a nil argument. See [panic] for details.

        c = Multisets.immutableEntry(entries.get(2), sortedMultiset.count(entries.get(2)));
      }
    }
  }

  /** Resets the contents of sortedMultiset to have entries a, c, for the navigation tests. */
  // Needed to stop Eclipse whining
  private void resetWithHole() {
    List<E> container = new ArrayList<>();
    container.addAll(nCopies(a.getCount(), a.getElement()));
    container.addAll(nCopies(c.getCount(), c.getElement()));

        }
        generatorList.forEach(g -> {
            try {
                g.destroy();
            } catch (final Exception e) {
                logger.warn("Failed to stop thumbnail generator.", e);
            }
        });
    }

    /**
     * Gets the system property option string for thumbnail path configuration.
     *

                    proactiveCheckInterval, TimeUnit.MILLISECONDS);
            log.info("Started proactive health checking with interval {} ms", proactiveCheckInterval);
        }
    }

    /**
     * Stop proactive health checking
     */
    public void stopProactiveHealthChecking() {
        if (healthCheckTask != null) {
            healthCheckTask.cancel(false);
            healthCheckTask = null;

  }

  /**
   * OkHttp currently doesn't implement failing the request body stream independently of failing the
   * corresponding response body stream. This is necessary if we want servers to be able to stop
   * inbound data and send an early 400 before the request body completes.
   *
   * This test sends a slow request that is canceled by the server. It expects the response to still