@SuppressWarnings("ShortCircuitBoolean")
abstract class AbstractCatchingFuture<
        V extends @Nullable Object, X extends Throwable, F, T extends @Nullable Object>
    extends FluentFuture.TrustedFuture<V> implements Runnable {
  static <V extends @Nullable Object, X extends Throwable> ListenableFuture<V> create(
      ListenableFuture<? extends V> input,
      Class<X> exceptionType,
      Function<? super X, ? extends V> fallback,

                    .lookup
                    .lookupMap(org.apache.maven.cling.invoker.mvnup.Goal.class)
                    .keySet())));
        }
    }

    private static class StreamGobbler implements Runnable {
        private final InputStream inputStream;
        private final Consumer<String> consumer;

        private StreamGobbler(InputStream inputStream, Consumer<String> consumer) {

          InetAddress.getAllByName(hostname).toList()
    })
    .build()
```

SAM conversion impacts these APIs:

 * Authenticator
 * Dispatcher.setIdleCallback(Runnable)
 * Dns
 * EventListener.Factory
 * HttpLoggingInterceptor.Logger
 * LoggingEventListener.Factory
 * OkHttpClient.Builder.hostnameVerifier(HostnameVerifier)

    }
    bloomFilter.put(GOLDEN_PRESENT_KEY);

    int numThreads = 12;
    double safetyFalsePositiveRate = 0.1;
    Stopwatch stopwatch = Stopwatch.createStarted();

    Runnable task =
        () -> {
          do {
            // We can't have a GOLDEN_NOT_PRESENT_KEY because false positives are
            // possible! It's false negatives that can't happen.

            Thread webFsCrawlerThread = null;
            Thread dataCrawlerThread = null;

            if (runAll || webConfigIdList != null || fileConfigIdList != null) {
                webFsCrawlerThread = new Thread((Runnable) () -> {
                    // crawl web
                    writeTimeToSessionInfo(crawlingInfoHelper, Constants.WEB_FS_CRAWLER_START_TIME);

        registerMockJobManager(jobId, withParamsCallback, null);
    }

    private void registerMockJobManager(final String jobId, final LaunchNowWithParamsCallback withParamsCallback,
            final Runnable noArgCallback) {
        final LaScheduledJob mockLaJob = new MockLaScheduledJob() {
            @Override
            public LaunchedProcess launchNow() {
                if (noArgCallback != null) {

#### Do-stuff-later pool

Sometimes there's an action required like calling the application layer or responding to a ping, and the thread discovering the action is not the thread that should do the work. We enqueue a runnable on this executor and it gets handled by one of the executor's threads.

### Locks

We have 3 different things that we synchronize on.

#### Http2Connection

 * more than 2 per second:
 *
 * {@snippet :
 * final RateLimiter rateLimiter = RateLimiter.create(2.0); // rate is "2 permits per second"
 * void submitTasks(List<Runnable> tasks, Executor executor) {
 *   for (Runnable task : tasks) {
 *     rateLimiter.acquire(); // may wait
 *     executor.execute(task);
 *   }
 * }
 * }
 *

    /** An array of supported language codes. */
    protected String[] supportedLanguages;

    /** A list of shutdown hooks to be executed on system shutdown. */
    protected List<Runnable> shutdownHookList = new ArrayList<>();

    /** The previous state of the cluster. */
    protected AtomicInteger previousClusterState = new AtomicInteger(0);

    /** The version of the Fess application. */

@SuppressWarnings("ShortCircuitBoolean")
abstract class AbstractTransformFuture<
        I extends @Nullable Object, O extends @Nullable Object, F, T extends @Nullable Object>
    extends FluentFuture.TrustedFuture<O> implements Runnable {
  static <I extends @Nullable Object, O extends @Nullable Object> ListenableFuture<O> createAsync(
      ListenableFuture<I> input,
      AsyncFunction<? super I, ? extends O> function,
      Executor executor) {