}

  /**
   * Executes {@code callable} on the specified {@code executor}, returning a {@code Future}.
   *
   * @throws RejectedExecutionException if the task cannot be scheduled for execution
   * @since 23.0
   */
  public static <O extends @Nullable Object> ListenableFuture<O> submitAsync(
      AsyncCallable<O> callable, Executor executor) {
    TrustedListenableFutureTask<O> task = TrustedListenableFutureTask.create(callable);

    --hash=sha256:ffebb6666a7bfc28005f4fbbb111a455b5e7d6cd3b12752b7050863ecb27d5cc
    # via -r ci/official/requirements_updater/requirements.in
termcolor==2.3.0 \
    --hash=sha256:3afb05607b89aed0ffe25202399ee0867ad4d3cb4180d98aaf8eefa6a5f7d475 \
    --hash=sha256:b5b08f68937f138fe92f6c089b99f1e2da0ae56c52b78bf7075fd95420fd9a5a
    # via -r ci/official/requirements_updater/requirements.in

 * existing {@code ListenableFuture}, implemented atop a {@link ForwardingListenableFuture} that
 * forwards to that future and adds the desired methods.
 *
 * @since 23.0
 */
@DoNotMock("Use FluentFuture.from(Futures.immediate*Future) or SettableFuture")
@GwtCompatible
public abstract class FluentFuture<V extends @Nullable Object>
    extends GwtFluentFutureCatchingSpecialization<V> {

    --hash=sha256:ffebb6666a7bfc28005f4fbbb111a455b5e7d6cd3b12752b7050863ecb27d5cc
    # via -r ci/official/requirements_updater/requirements.in
termcolor==2.3.0 \
    --hash=sha256:3afb05607b89aed0ffe25202399ee0867ad4d3cb4180d98aaf8eefa6a5f7d475 \
    --hash=sha256:b5b08f68937f138fe92f6c089b99f1e2da0ae56c52b78bf7075fd95420fd9a5a
    # via -r ci/official/requirements_updater/requirements.in

 *  Fix: Badly-behaving caches now throw a checked exception instead of a
    `NullPointerException`.
 *  Fix: Better handling of uncaught exceptions in MockWebServer with HTTP/2.

## Version 2.3.0

_2015-03-16_

 *  **HTTP/2 support.** We've done interop testing and haven't seen any
    problems. HTTP/2 support has been a big effort and we're particularly

Typically HTTP headers work like a `Map<String, String>`: each field has one value or none. But some headers permit multiple values, like Guava's [Multimap](https://guava.dev/releases/23.0/api/docs/com/google/common/collect/Multimap.html). For example, it's legal and common for an HTTP response to supply multiple `Vary` headers. OkHttp's APIs attempt to make both cases comfortable.

- github.com/onsi/ginkgo/v2: [v2.4.0 → v2.9.1](https://github.com/onsi/ginkgo/v2/compare/v2.4.0...v2.9.1)
- github.com/onsi/gomega: [v1.23.0 → v1.27.4](https://github.com/onsi/gomega/compare/v1.23.0...v1.27.4)
- github.com/opencontainers/runtime-spec: [1c3f411 → 494a5a6](https://github.com/opencontainers/runtime-spec/compare/1c3f411...494a5a6)

- Golang.org/x/net is bumped to v0.23.0 to address CVE-2023-45288 ([#124180](https://github.com/kubernetes/kubernetes/pull/124180), [@MadhavJivrajani](https://github.com/MadhavJivrajani)) [SIG API Machinery, Architecture, Auth, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Network,...

    - [Client Binaries](#client-binaries-17)
    - [Server Binaries](#server-binaries-17)
    - [Node Binaries](#node-binaries-17)
    - [Container Images](#container-images-17)
  - [Changelog since v1.23.0](#changelog-since-v1230)
  - [Major Themes](#major-themes)
    - [Dockershim Removed from kubelet](#dockershim-removed-from-kubelet)
    - [Beta APIs Off by Default](#beta-apis-off-by-default)

   * @throws IllegalArgumentException if {@code size} is not between 0 and {@code set.size()}
   *     inclusive
   * @throws NullPointerException if {@code set} is or contains {@code null}
   * @since 23.0
   */
  public static <E> Set<Set<E>> combinations(Set<E> set, int size) {
    ImmutableMap<E, Integer> index = Maps.indexMap(set);
    checkNonnegative(size, "size");