} else {
      return ((Comparator<@Nullable Object>) comparator).compare(o1, o2);
    }
  }

  /**
   * A sensible definition of {@link #containsKey} in terms of the {@code firstKey()} method of
   * {@link #tailMap}. If you override {@link #tailMap}, you may wish to override {@link
   * #containsKey} to forward to this implementation.
   *
   * @since 7.0
   */
  @Override

import org.jspecify.annotations.Nullable;

/**
 * Computes a value, possibly asynchronously. For an example usage and more information, see {@link
 * Futures.FutureCombiner#callAsync(AsyncCallable, java.util.concurrent.Executor)}.
 *
 * <p>Much like {@link java.util.concurrent.Callable}, but returning a {@link ListenableFuture}
 * result.
 *
 * @since 20.0
 */
@GwtCompatible
public interface AsyncCallable<V extends @Nullable Object> {

 *
 * <p>The core interface used to represent caches is {@link Cache}. In-memory caches can be
 * configured and created using {@link CacheBuilder}, with cache entries being loaded by {@link
 * CacheLoader}. Statistics about cache performance are exposed using {@link CacheStats}.
 *
 * <p>See the Guava User Guide article on <a

  public @Nullable E lower(@ParametricNullness E e) {
    return delegate().lower(e);
  }

  /**
   * A sensible definition of {@link #lower} in terms of the {@code descendingIterator} method of
   * {@link #headSet(Object, boolean)}. If you override {@link #headSet(Object, boolean)}, you may
   * wish to override {@link #lower} to forward to this implementation.
   */
  protected @Nullable E standardLower(@ParametricNullness E e) {

 *
 * <ul>
 *   <li>example.com
 *   <li>example.com:80
 *   <li>192.0.2.1
 *   <li>192.0.2.1:80
 *   <li>[2001:db8::1] - {@link #getHost()} omits brackets
 *   <li>[2001:db8::1]:80 - {@link #getHost()} omits brackets
 *   <li>2001:db8::1 - Use {@link #requireBracketsForIPv6()} to prohibit this
 * </ul>
 *
 * <p>Note that this is not an exhaustive list, because these methods are only concerned with

        this(url, false);
    }

    /**
     * Creates an {@link java.io.OutputStream} for writing bytes to a file on
     * an SMB server represented by the {@link jcifs.smb1.smb1.SmbFile} parameter. See
     * {@link jcifs.smb1.smb1.SmbFile} for a detailed description and examples of
     * the smb URL syntax.
     *

 *
 * <ul>
 *   <li>{@link ImmutableDoubleArray}
 *   <li>{@link ImmutableIntArray}
 *   <li>{@link ImmutableLongArray}
 *   <li>{@link UnsignedInteger}
 *   <li>{@link UnsignedLong}
 * </ul>
 *
 * <h3>Per-type static utilities</h3>
 *
 * <ul>
 *   <li>{@link Booleans}
 *   <li>{@link Bytes}
 *       <ul>
 *         <li>{@link SignedBytes}
 *         <li>{@link UnsignedBytes}
 *       </ul>

 * the standard collection operations {@link #add(Object)} or {@link #remove(Object)} are encouraged
 * to implement the related methods as well. Finally, two collection views are provided: {@link
 * #elementSet} contains the distinct elements of the multiset "with duplicates collapsed", and
 * {@link #entrySet} is similar but contains {@link Entry Multiset.Entry} instances, each providing

    }
  }

  @Override
  public @Nullable Entry<K, V> lastEntry() {
    return delegate().lastEntry();
  }

  /**
   * A sensible definition of {@link #lastEntry} in terms of the {@code iterator()} of the {@link
   * #entrySet} of {@link #descendingMap}. If you override {@code descendingMap}, you may wish to
   * override {@code lastEntry} to forward to this implementation.
   */

    }
  }

  @Override
  public @Nullable Entry<K, V> lastEntry() {
    return delegate().lastEntry();
  }

  /**
   * A sensible definition of {@link #lastEntry} in terms of the {@code iterator()} of the {@link
   * #entrySet} of {@link #descendingMap}. If you override {@code descendingMap}, you may wish to
   * override {@code lastEntry} to forward to this implementation.
   */