private String leave() {
    return "leave";
  }

  public final void testMutualExclusion() throws Exception {
    thread1.callAndAssertReturns(enter());
    thread2.callAndAssertBlocks(enter());
    thread1.callAndAssertReturns(leave());
    thread2.assertPriorCallReturns(enter());
  }

  public final void testTryEnter() throws Exception {
    thread1.callAndAssertReturns(true, tryEnter());

  /** Returns the range that spans the given range and entry, if the entry can be coalesced. */
  private static <K extends Comparable, V> Range<K> coalesce(
      Range<K> range, V value, @Nullable Entry<Cut<K>, RangeMapEntry<K, V>> entry) {
    if (entry != null
        && entry.getValue().getKey().isConnected(range)
        && entry.getValue().getValue().equals(value)) {
      return range.span(entry.getValue().getKey());
    }
    return range;

    /**
     * Adds user attributes to the LDAP entry for user creation.
     *
     * @param entry the BasicAttributes to add user attributes to
     * @param user the user object containing attribute values
     */
    protected void addUserAttributes(final BasicAttributes entry, final User user) {
        entry.put(new BasicAttribute("cn", user.getName()));

  }

  public void testToStringNull() {
    assertThat(entry(NE, 1).toString()).isEqualTo("null");
    assertThat(entry(NE, 2).toString()).isEqualTo("null x 2");
  }

  public void testEquals() {
    assertEquals(control("foo", 1), entry("foo", 1));
    assertEquals(control("bar", 2), entry("bar", 2));
    assertFalse(control("foo", 1).equals(entry("foo", 2)));
    assertFalse(entry("foo", 1).equals(control("bar", 1)));

  }

  /** Makes an entry usable internally by a new ImmutableMap. */
  static <K, V> ImmutableMapEntry<K, V> makeImmutable(Entry<K, V> entry) {
    return makeImmutable(entry, entry.getKey(), entry.getValue());
  }

  private RegularImmutableMap(
      Entry<K, V>[] entries, @Nullable ImmutableMapEntry<K, V> @Nullable [] table, int mask) {
    this.entries = entries;

     *
     * @param first the first entry of the table
     * @param entry the entry being removed from the table
     * @return the new first entry for the table
     */
    @GuardedBy("this")
    @Nullable E removeFromChain(E first, E entry) {
      int newCount = count;
      E newFirst = entry.getNext();
      for (E e = first; e != entry; e = e.getNext()) {
        E next = copyEntry(e, newFirst);

    Collection<Entry<K, V>> entries = getSampleEntries(getNumEntries() - 1);

    entries.add(entryWithNull);

    int expectedHashCode = 0;
    for (Entry<K, V> entry : entries) {
      expectedHashCode += hash(entry);
    }

    resetContainer(getSubjectGenerator().create(entries.toArray()));
    assertEquals(
        "A Map's hashCode() should be the sum of those of its entries (where "

				return nil
			}
			if wildcard.Match("multipart/*", entry.name) {
				return nil
			}
			if wildcard.Match("tmp-old/*", entry.name) {
				return nil
			}
		}
		fivs, err := entry.fileInfoVersions(bucket)
		if err != nil {
			return healObjectFn(bucket, entry.name, "", scanMode)
		}
		if opts.Remove && !opts.DryRun {
			err := z.CheckAbandonedParts(ctx, bucket, entry.name, opts)

  public void testAsMapGet() {
    for (K key : sampleKeys()) {
      List<V> expectedValues = new ArrayList<>();
      for (Entry<K, V> entry : getSampleElements()) {
        if (entry.getKey().equals(key)) {
          expectedValues.add(entry.getValue());
        }
      }

      Collection<V> collection = multimap().asMap().get(key);
      if (expectedValues.isEmpty()) {

    }

    @Override
    public Collection<Entry<String, Integer>> create(Object... elements) {
      Multimap<String, Integer> multimap = createMultimap();
      for (Object element : elements) {
        @SuppressWarnings("unchecked")
        Entry<String, Integer> entry = (Entry<String, Integer>) element;
        multimap.put(entry.getKey(), entry.getValue());
      }
      return multimap.entries();
    }