*
 * @author Louis Wasserman
 */
@ElementTypesAreNonnullByDefault
final class UnmodifiableSortedMultiset<E extends @Nullable Object> extends UnmodifiableMultiset<E>
    implements SortedMultiset<E> {
  UnmodifiableSortedMultiset(SortedMultiset<E> delegate) {
    super(delegate);
  }

  @Override
  protected SortedMultiset<E> delegate() {

final class UnmodifiableSortedMultiset<E extends @Nullable Object> extends UnmodifiableMultiset<E>
    implements SortedMultiset<E> {
  UnmodifiableSortedMultiset(SortedMultiset<E> delegate) {
    super(delegate);
  }

  @Override
  protected SortedMultiset<E> delegate() {
    return (SortedMultiset<E>) super.delegate();
  }

  @Override
  public Comparator<? super E> comparator() {
    return delegate().comparator();

 * @author Louis Wasserman
 */
@GwtCompatible(emulated = true)
@ElementTypesAreNonnullByDefault
abstract class DescendingMultiset<E extends @Nullable Object> extends ForwardingMultiset<E>
    implements SortedMultiset<E> {
  abstract SortedMultiset<E> forwardMultiset();

  @LazyInit @CheckForNull private transient Comparator<? super E> comparator;

  @Override
  public Comparator<? super E> comparator() {

   *
   * <p>This method is safe to use even when {@code sortedMultiset} is a synchronized or concurrent
   * collection that is currently being modified by another thread.
   *
   * @throws NullPointerException if {@code sortedMultiset} or any of its elements is null
   */
  public static <E> ImmutableSortedMultiset<E> copyOfSorted(SortedMultiset<E> sortedMultiset) {
    return copyOfSortedEntries(

package com.google.common.collect;

import com.google.common.annotations.GwtIncompatible;
import java.util.SortedSet;
import org.checkerframework.checker.nullness.qual.Nullable;

/**
 * Superinterface of {@link SortedMultiset} to introduce a bridge method for {@code elementSet()},
 * to ensure binary compatibility with older Guava versions that specified {@code elementSet()} to
 * return {@code SortedSet}.
 *
 * @author Louis Wasserman
 */

    TreeMultisetImpl {
      @Override
      public <E extends Comparable<E>> SortedMultiset<E> create(Collection<E> contents) {
        return TreeMultiset.create(contents);
      }
    },
    ImmutableSortedMultisetImpl {
      @Override
      public <E extends Comparable<E>> SortedMultiset<E> create(Collection<E> contents) {
        return ImmutableSortedMultiset.copyOf(contents);
      }
    };

   *
   * @param sortedMultiset the sorted multiset for which an unmodifiable view is to be generated
   * @return an unmodifiable view of the multiset
   * @since 11.0
   */
  public static <E extends @Nullable Object> SortedMultiset<E> unmodifiableSortedMultiset(
      SortedMultiset<E> sortedMultiset) {
    // it's in its own file so it can be emulated for GWT

   *
   * @param sortedMultiset the sorted multiset for which an unmodifiable view is to be generated
   * @return an unmodifiable view of the multiset
   * @since 11.0
   */
  public static <E extends @Nullable Object> SortedMultiset<E> unmodifiableSortedMultiset(
      SortedMultiset<E> sortedMultiset) {
    // it's in its own file so it can be emulated for GWT

import com.google.common.collect.RowSortedTable;
import com.google.common.collect.SetMultimap;
import com.google.common.collect.Sets;
import com.google.common.collect.SortedMapDifference;
import com.google.common.collect.SortedMultiset;
import com.google.common.collect.SortedSetMultimap;
import com.google.common.collect.Table;
import com.google.common.collect.Tables;
import com.google.common.collect.TreeBasedTable;

import com.google.common.collect.Ordering;
import com.google.common.collect.Range;
import com.google.common.collect.RowSortedTable;
import com.google.common.collect.SetMultimap;
import com.google.common.collect.SortedMultiset;
import com.google.common.collect.Table;
import com.google.common.collect.TreeBasedTable;
import com.google.common.collect.TreeMultiset;
import com.google.common.primitives.UnsignedInteger;