.add(Range.closed(5, 8))
            .add(Range.closedOpen(1, 3))
            .build();

    assertThrows(
        UnsupportedOperationException.class,
        () -> rangeSet.addAll(ImmutableRangeSet.<Integer>of()));
  }

  @SuppressWarnings("DoNotCall")
  public void testRemoveUnsupported() {
    RangeSet<Integer> rangeSet =
        ImmutableRangeSet.<Integer>builder()

    Set<Feature<?>> derivedFeatures = copyToSet(computeMultimapGetFeatures(multimapFeatures));
    if (derivedFeatures.remove(CollectionSize.ANY)) {
      derivedFeatures.addAll(CollectionSize.ANY.getImpliedFeatures());
    }
    derivedFeatures.remove(CollectionSize.ZERO);
    return derivedFeatures;
  }

  private static class AsMapGenerator<K, V, M extends Multimap<K, V>>

        put(entry.getKey(), entry.getValue());
      }
      return this;
    }

    @CanIgnoreReturnValue
    Builder<K, V> combine(Builder<K, V> builder) {
      entries.addAll(builder.entries);
      return this;
    }

    /**
     * Returns an {@code ImmutableRangeMap} containing the associations previously added to this
     * builder.
     *

        List<Restriction> copiedRestrictions = null;

        if (restrictions != null) {
            copiedRestrictions = new ArrayList<>();

            if (!restrictions.isEmpty()) {
                copiedRestrictions.addAll(restrictions);
            }
        }

        return new VersionRange(recommendedVersion, copiedRestrictions);
    }

    /**
     * <p>
     * Create a version range from a string representation

   * point values. Two instances are guaranteed to be considered equal if one is copied from the
   * other using {@code second = new PairedStatsAccumulator().addAll(first).snapshot()}, if both
   * were obtained by calling {@code snapshot()} on the same {@link PairedStatsAccumulator} without
   * adding any values in between the two calls, or if one is obtained from the other after

      for (int i = 0; i < VALUES.length; i++) {
        List<Character> list = Chars.asList(VALUES).subList(0, i);
        Collection<Character> misleadingSize = Helpers.misleadingSizeCollection(delta);
        misleadingSize.addAll(list);
        char[] arr = Chars.toArray(misleadingSize);
        assertThat(arr).hasLength(i);
        for (int j = 0; j < i; j++) {
          assertThat(arr[j]).isEqualTo(VALUES[j]);
        }
      }
    }

          // adds recursive isSubtypeOf() call and feels complicated.
          // There is no contract one way or another as long as isSubtypeOf() works as expected.
          combined.addAll(asList(typeParam.getBounds()));
          if (combined.size() > 1) { // Object is implicit and only useful if it's the only bound.
            combined.remove(Object.class);
          }

    assertFalse(rangeSet.contains(6));
  }

  public void testAddAll() {
    RangeSet<Integer> rangeSet = TreeRangeSet.create();
    rangeSet.add(Range.closed(3, 10));
    rangeSet.addAll(asList(Range.open(1, 3), Range.closed(5, 8), Range.closed(9, 11)));
    assertThat(rangeSet.asRanges()).containsExactly(Range.openClosed(1, 11)).inOrder();
  }

  public void testRemoveAll() {

        allOverloads.add(
            ImmutableList.<Class<?>>builder()
                .add(predicateType)
                .add(String.class) // the format string
                .addAll(curr)
                .build());
      }
    }
    return allOverloads.build().asList();
  }

  // 'test' to demonstrate some potentially ambiguous overloads.  This 'test' is kind of strange,

    public Ansi() {
        this(new StringBuilder(80));
    }

    public Ansi(Ansi parent) {
        this(new StringBuilder(parent.builder));
        attributeOptions.addAll(parent.attributeOptions);
    }

    public Ansi(int size) {
        this(new StringBuilder(size));
    }

    public Ansi(StringBuilder builder) {
        this.builder = builder;
    }