*
   * <ul>
   *   <li>UNORDERED: no order is guaranteed.
   *   <li>STABLE: ordering is guaranteed to follow a pattern that won't change between releases.
   *       Some methods may have stronger guarantees.
   *   <li>INSERTION: insertion ordering is guaranteed.
   *   <li>SORTED: ordering according to a supplied comparator is guaranteed.
   * </ul>
   */
  public enum Type {
    UNORDERED,
    STABLE,

 *
 * <p>Applications are encouraged to use a {@code CycleDetectingLockFactory} to create any locks for
 * which external/unmanaged code is executed while the lock is held. (See caveats under
 * <strong>Performance</strong>).
 *
 * <p><strong>Cycle Detection</strong>
 *
 * <p>Deadlocks can arise when locks are acquired in an order that forms a cycle. In a simple

      assertFalse(
          "Inverse should not contain value " + reversed.getValue(),
          inv.containsValue(reversed.getValue()));
      /*
       * TODO(cpovirk): This is a bit stronger than super.expectMissing(), which permits a <key,
       * someOtherValue> pair.
       */
      assertNull(
          "Inverse should not return a mapping for key " + reversed.getKey(),

      assertFalse(
          "Inverse should not contain value " + reversed.getValue(),
          inv.containsValue(reversed.getValue()));
      /*
       * TODO(cpovirk): This is a bit stronger than super.expectMissing(), which permits a <key,
       * someOtherValue> pair.
       */
      assertNull(
          "Inverse should not return a mapping for key " + reversed.getKey(),

  }

  public void testStrong_builder() {
    int concurrencyLevel = 42;
    Interner<Object> interner =
        Interners.newBuilder().strong().concurrencyLevel(concurrencyLevel).build();
    InternerImpl<Object> internerImpl = (InternerImpl<Object>) interner;
    assertEquals(Strength.STRONG, internerImpl.map.keyStrength());
  }

  public void testWeak_simplistic() {
    String canonical = "a";
    String not = new String("a");

    assertThat(EntryFactory.getFactory(Strength.STRONG, false, false))
        .isEqualTo(EntryFactory.STRONG);
    assertThat(EntryFactory.getFactory(Strength.STRONG, true, false))
        .isEqualTo(EntryFactory.STRONG_ACCESS);
    assertThat(EntryFactory.getFactory(Strength.STRONG, false, true))
        .isEqualTo(EntryFactory.STRONG_WRITE);
    assertThat(EntryFactory.getFactory(Strength.STRONG, true, true))

    assertThat(EntryFactory.getFactory(Strength.STRONG, false, false))
        .isEqualTo(EntryFactory.STRONG);
    assertThat(EntryFactory.getFactory(Strength.STRONG, true, false))
        .isEqualTo(EntryFactory.STRONG_ACCESS);
    assertThat(EntryFactory.getFactory(Strength.STRONG, false, true))
        .isEqualTo(EntryFactory.STRONG_WRITE);
    assertThat(EntryFactory.getFactory(Strength.STRONG, true, true))

 *
 * <p>This class can't depend on other Guava code. If we were to load this class in the same class
 * loader as the rest of Guava, this thread would keep an indirect strong reference to the class
 * loader and prevent it from being garbage collected. This poses a problem for environments where
 * you want to throw away the class loader. For example, dynamically reloading a web application or

                                                </p>
                                                <p>
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                                                        id="delete-doc-url"></span>
                                                </p>
                                            </div>

  Supplier<? extends StatsCounter> statsCounterSupplier = NULL_STATS_COUNTER;

  private CacheBuilder() {}

  /**
   * Constructs a new {@code CacheBuilder} instance with default settings, including strong keys,
   * strong values, and no automatic eviction of any kind.
   *
   * <p>Note that while this return type is {@code CacheBuilder<Object, Object>}, type parameters on