new CopyOnWriteArrayList<>(initialContents);

          final Method getAllStatesMethod =
              getOnlyElement(asList(ConcurrentlyMutatedList.class.getDeclaredMethods()));

          final Iterator<ListFrobber> remainingActions = actionsToPerformConcurrently.iterator();

          final Set<List<Integer>> allStates = newHashSet();

          @Override

              new CopyOnWriteArrayList<>(initialContents);

          final Method getAllStatesMethod =
              getOnlyElement(asList(ConcurrentlyMutatedList.class.getDeclaredMethods()));

          final Iterator<ListFrobber> remainingActions = actionsToPerformConcurrently.iterator();

          final Set<List<Integer>> allStates = newHashSet();

          @Override

  private static final ImmutableMap<Class<?>, Method> GENERATORS;

  static {
    ImmutableMap.Builder<Class<?>, Method> builder = ImmutableMap.builder();
    for (Method method : FreshValueGenerator.class.getDeclaredMethods()) {
      if (method.isAnnotationPresent(Generates.class)) {
        builder.put(method.getReturnType(), method);
      }
    }
    GENERATORS = builder.buildOrThrow();
  }

  private static final ImmutableMap<Class<?>, Method> GENERATORS;

  static {
    ImmutableMap.Builder<Class<?>, Method> builder = ImmutableMap.builder();
    for (Method method : FreshValueGenerator.class.getDeclaredMethods()) {
      if (method.isAnnotationPresent(Generates.class)) {
        builder.put(method.getReturnType(), method);
      }
    }
    GENERATORS = builder.buildOrThrow();
  }

    abstract <T2 extends CharSequence & Iterable<T2>> void acceptT2(T2 t2);

    static void verifyConsistentRawType() {
      for (Method method : RawTypeConsistencyTester.class.getDeclaredMethods()) {
        assertEquals(
            method.getReturnType(), TypeToken.of(method.getGenericReturnType()).getRawType());
        for (int i = 0; i < method.getParameterTypes().length; i++) {
          assertEquals(

    abstract <T2 extends CharSequence & Iterable<T2>> void acceptT2(T2 t2);

    static void verifyConsistentRawType() {
      for (Method method : RawTypeConsistencyTester.class.getDeclaredMethods()) {
        assertEquals(
            method.getReturnType(), TypeToken.of(method.getGenericReturnType()).getRawType());
        for (int i = 0; i < method.getParameterTypes().length; i++) {
          assertEquals(