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   * of {@link CombinedFuture}, the user-supplied callback usually has its own references to inputs.
   */
  /*
   * In certain circumstances, this field might theoretically not be visible to an afterDone() call
   * triggered by cancel(). For details, see the comments on the fields of TimeoutFuture.
   */
  @CheckForNull @LazyInit
  private ImmutableCollection<? extends ListenableFuture<? extends InputT>> futures;

    this.setToTest = (Set<Element>) impl.create(sampleData.getValuesInSet());
    this.queries = sampleData.getQueries();
  }

  @Benchmark
  boolean contains(int reps) {
    // Paranoia: acting on hearsay that accessing fields might be slow
    // Should write a benchmark to test that!
    Set<Element> set = setToTest;
    Element[] queries = this.queries;

    int mask = queries.length - 1;

    boolean dummy = false;

    this.setToTest = (Set<Element>) impl.create(sampleData.getValuesInSet());
    this.queries = sampleData.getQueries();
  }

  @Benchmark
  boolean contains(int reps) {
    // Paranoia: acting on hearsay that accessing fields might be slow
    // Should write a benchmark to test that!
    Set<Element> set = setToTest;
    Element[] queries = this.queries;

    int mask = queries.length - 1;

    boolean dummy = false;

  }

  private static final int ENDPOINT = -2;

  // TODO(user): predecessors and successors should be collocated (reducing cache misses).
  // Might also explore collocating all of [hash, next, predecessor, successor] fields of an
  // entry in a *single* long[], though that reduces the maximum size of the set by a factor of 2

  /**
   * Pointer to the predecessor of an entry in insertion order. ENDPOINT indicates a node is the

    // cause system property.  This allows us to run with both settings of the property in one jvm
    // without resorting to even crazier hacks to reset static final boolean fields.
    System.setProperty("guava.concurrent.generate_cancellation_cause", "true");
    final String concurrentPackage = SettableFuture.class.getPackage().getName();
    classReloader =

  // Secret sauce for setting final fields; don't make it public.
  static final class FieldSetter<T> {
    private final Field field;

    private FieldSetter(Field field) {
      this.field = field;
      field.setAccessible(true);
    }

    void set(T instance, Object value) {
      try {
        field.set(instance, value);
      } catch (IllegalAccessException impossible) {
        throw new AssertionError(impossible);

        MoreObjects.toStringHelper(new TestClass())
            .add("field1", "This is string.")
            .add("field2", Arrays.asList("abc", "def", "ghi"))
            .add("field3", map)
            .toString();
    final String expected =
        "TestClass{"
            + "field1=This is string., field2=[abc, def, ghi], field3={abc=1, def=2, ghi=3}}";

    assertEquals(expected, toTest);
  }

   *
   * Then we declare the getters for these fields as @GwtIncompatible so that no one can try to use
   * them under J2CL—or, as an unfortunate side effect, under GWT. We do still give the fields
   * themselves their proper values under GWT, since GWT's EnumMap does need the Class instance.
   *
   * Note that sometimes these fields *do* have correct values under J2CL: They will if the caller

    @Override
    @ParametricNullness
    public T get() {
      // Another variant of Double Checked Locking.
      //
      // We use two volatile reads. We could reduce this to one by
      // putting our fields into a holder class, but (at least on x86)
      // the extra memory consumption and indirection are more
      // expensive than the extra volatile reads.
      long nanos = expirationNanos;