assertThat(q).containsExactlyElementsIn(contents);
        q.add(next);
        contents.add(next);
        assertThat(q).containsExactlyElementsIn(contents);
        q.remove(i);
        assertTrue(contents.remove(Integer.valueOf(i)));
        assertThat(q).containsExactlyElementsIn(contents);
        assertEquals(next, q.poll());
        contents.remove(next);

  public static final String CONTENT_LOCATION = "Content-Location";
  /** The HTTP {@code Content-MD5} header field name. */
  public static final String CONTENT_MD5 = "Content-MD5";
  /** The HTTP {@code Content-Range} header field name. */
  public static final String CONTENT_RANGE = "Content-Range";
  /**
   * The HTTP <a href="http://w3.org/TR/CSP/#content-security-policy-header-field">{@code
   * Content-Security-Policy}</a> header field name.

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testRetainAllIgnoresCount() {
    initThreeCopies();
    List<E> contents = Helpers.copyToList(getMultiset());
    assertFalse(getMultiset().retainAll(Collections.singleton(e0())));
    expectContents(contents);
  }

  /**
   * Returns {@link Method} instances for the remove tests that assume multisets support duplicates

 * or method references instead of classes, leaving your code easier to migrate in the future.
 *
 * <p>To use a reference of this type (say, named {@code guavaPredicate}) in a context where {@code
 * java.util.function.Predicate} is expected, use the method reference {@code
 * guavaPredicate::apply}. For the other direction, use {@code javaUtilPredicate::test}. A future

   *
   * <p>This method will soon be deprecated in favor of {@code
   * MultimapBuilder.hashKeys().arrayListValues().build(multimap)}.
   *
   * @param multimap the multimap whose contents are copied to this multimap
   */
  public static <K extends @Nullable Object, V extends @Nullable Object>
      ArrayListMultimap<K, V> create(Multimap<? extends K, ? extends V> multimap) {

  }

  /**
   * Constructs a {@code TreeMultimap}, ordered by the natural ordering of its keys and values, with
   * the same mappings as the specified multimap.
   *
   * @param multimap the multimap whose contents are copied to this multimap
   */
  @SuppressWarnings("rawtypes") // https://github.com/google/guava/issues/989
  public static <K extends Comparable, V extends Comparable> TreeMultimap<K, V> create(

import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Set;
import java.util.stream.Collector;
import javax.annotation.CheckForNull;

/**
 * A {@link RangeSet} whose contents will never change, with many other important properties
 * detailed at {@link ImmutableCollection}.
 *
 * @author Louis Wasserman
 * @since 14.0
 */

import java.util.Iterator;
import java.util.List;
import java.util.NoSuchElementException;
import java.util.Set;
import java.util.stream.Collector;
import javax.annotation.CheckForNull;

/**
 * A {@link RangeSet} whose contents will never change, with many other important properties
 * detailed at {@link ImmutableCollection}.
 *
 * @author Louis Wasserman
 * @since 14.0
 */

              uncheckedCastNullableTToT(buffer[i]), uncheckedCastNullableTToT(threshold))
          > 0) {
        threshold = buffer[i];
      }
    }
  }

  /**
   * Partitions the contents of buffer in the range [left, right] around the pivot element
   * previously stored in buffer[pivotValue]. Returns the new index of the pivot element,

 *
 * <p>Note that the behavior of {@link Range#isEmpty()} and {@link Range#isConnected(Range)} may not
 * be as expected on discrete ranges. See the Javadoc of those methods for details.
 *
 * <p>For a {@link Set} whose contents are specified by a {@link Range}, see {@link ContiguousSet}.
 *
 * <p>See the Guava User Guide article on <a href=
 * "https://github.com/google/guava/wiki/NewCollectionTypesExplained#rangeset">RangeSets</a>.
 *