* We should annotate the superclass, InternalFutureFailureAccess, to say that its copy of this
   * method returns @Nullable, too. However, we're not sure if we want to make any changes to that
   * class, since it's in a separate artifact that we planned to release only a single version of.
   */
  @CheckForNull
  protected final Throwable tryInternalFastPathGetFailure() {
    if (this instanceof Trusted) {
      Object obj = value;

 *
 * <p><b>For users targeting Android API level 24 or higher:</b> This class will eventually
 * implement {@code BiPredicate<T, T>} (as it does in the main Guava artifact), but we currently
 * target a lower API level. In the meantime, if you have support for method references you can use
 * an equivalence as a bi-predicate like this: {@code myEquivalence::equivalent}.
 *
 * @author Bob Lee