throw new InvalidObjectException("Use SerializedForm");
  }

  // This class is never actually serialized directly, but we have to make the
  // warning go away (and suppressing would suppress for all nested classes too)
  private static final long serialVersionUID = 0;

  /**
   * Not supported. Use {@link #toImmutableSortedMap}, which offers better type-safety, instead.

    throw new InvalidObjectException("Use SerializedForm");
  }

  // This class is never actually serialized directly, but we have to make the
  // warning go away (and suppressing would suppress for all nested classes too)
  private static final long serialVersionUID = 0;

  /**
   * Not supported. Use {@link #toImmutableSortedMap}, which offers better type-safety, instead.

  }

  public <A> void testSerializable_typeVariableNotSupported() {
    assertThrows(RuntimeException.class, () -> new ITryToSerializeMyTypeVariable<String>().go());
  }

  private static class ITryToSerializeMyTypeVariable<T> {
    void go() {
      SerializableTester.reserialize(TypeToken.of(new TypeCapture<T>() {}.capture()));
    }
  }

  @CanIgnoreReturnValue

     * type. So why even make that error possible by giving callers the choice?
     *
     * On the other hand, the current signature is consistent with the similar allAsList method. And
     * eventually this method may go away entirely in favor of an API like
     * whenAllComplete().collectSuccesses(). That API would have a signature more like the current
     * one.
     */
    return new ListFuture<V>(ImmutableList.copyOf(futures), false);

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      }
      return next;
    }
  }

  private static class ConcatenatedIterator<T extends @Nullable Object> implements Iterator<T> {
    /* The last iterator to return an element.  Calls to remove() go to this iterator. */
    @CheckForNull private Iterator<? extends T> toRemove;

    /* The iterator currently returning elements. */
    private Iterator<? extends T> iterator;

    /*

  }

  public <A> void testSerializable_typeVariableNotSupported() {
    assertThrows(RuntimeException.class, () -> new ITryToSerializeMyTypeVariable<String>().go());
  }

  private static class ITryToSerializeMyTypeVariable<T> {
    void go() {
      SerializableTester.reserialize(TypeToken.of(new TypeCapture<T>() {}.capture()));
    }
  }

  @CanIgnoreReturnValue

      }
      return next;
    }
  }

  private static class ConcatenatedIterator<T extends @Nullable Object> implements Iterator<T> {
    /* The last iterator to return an element.  Calls to remove() go to this iterator. */
    @CheckForNull private Iterator<? extends T> toRemove;

    /* The iterator currently returning elements. */
    private Iterator<? extends T> iterator;

    /*