* need access to the futures again, so we can just pass `null`.
       *
       * TODO(b/112550045): Allocating a single, cheaper listener is (I think) only an optimization.
       * If we make some other optimizations, this one will no longer be necessary. The optimization
       * could actually hurt in some cases, as it forces us to keep all inputs in memory until the
       * final input completes.
       */

     *
     * @return A map of lifecycles, indexed on id
     */
    public Map<String, Lifecycle> getPhaseToLifecycleMap() {
        // If people are going to make their own lifecycles then we need to tell people how to namespace them correctly
        // so that they don't interfere with internally defined lifecycles.

        Map<String, Lifecycle> phaseToLifecycleMap = new HashMap<>();

    @Override
    public int hashCode() {
      return Objects.hashCode(map, defaultValue);
    }

    @Override
    public String toString() {
      // TODO(cpovirk): maybe remove "defaultValue=" to make this look like the method call does
      return "Functions.forMap(" + map + ", defaultValue=" + defaultValue + ")";
    }

    private static final long serialVersionUID = 0;
  }

  /**

    initCollectionWithNullElement();
    assertTrue(
        "removeAll(containsNull) should return true",
        collection.removeAll(Collections.singleton(null)));
    // TODO: make this work with MinimalCollection
  }

  @CollectionFeature.Require(SUPPORTS_REMOVE)
  public void testRemoveAll_containsWrongType() {
    try {
      assertFalse(

    assertTrue(iter.hasNext());
    assertTrue(iter.hasNext());
    assertTrue(iter.hasNext());
    assertEquals(1, (int) iter.next());

    assertFalse(iter.hasNext());

    // Make sure computeNext() doesn't get invoked again
    assertFalse(iter.hasNext());

    try {
      iter.next();
      fail("no exception thrown");
    } catch (NoSuchElementException expected) {
    }
  }

    return result;
  }

  /*
   * Memory visibility of these fields. There are two cases to consider.
   *
   * 1. visibility of the writes to these fields to Fire.run:
   *
   * The initial write to delegateRef is made definitely visible via the semantics of
   * addListener/SES.schedule. The later racy write in cancel() is not guaranteed to be observed,
   * however that is fine since the correctness is based on the atomic state in our base class. The

                        "While this /may/ work fine, please look for plugin updates and/or "
                                + "request plugins be made thread-safe.",
                        "If reporting an issue, report it against the plugin in question, not against Apache Maven.")) {
                    logger.warn(s);
                }

         * transformation however contradicts the other use case of precisely obeying the repository's layout. The below
         * flag tries to detect which use case applies to make both plugins happy.
         */
        realLocalRepo = (layout instanceof DefaultRepositoryLayout) && "local".equals(delegate.getId());
    }

    public LocalRepository getRepository() {
        return repo;

  /**
   * Keeps track of metadata like the number of hash table bits and modifications of this data
   * structure (to make it possible to throw ConcurrentModificationException in the iterator). Note
   * that we choose not to make this volatile, so we do less of a "best effort" to track such
   * errors, for better performance.
   */
  private transient int metadata;

      Producer producer = new Producer(q, 1);
      // producing one, will ask for two
      Future<?> producerThread = threadPool.submit(producer);
      producer.beganProducing.await();

      // make sure we time out
      Stopwatch timer = Stopwatch.createStarted();

      int drained = drain(q, newArrayList(), 2, 10, MILLISECONDS, interruptibly);
      assertThat(drained).isAtMost(1);