@Override
  public ImmutableSortedMap<K, V> subMap(K fromKey, K toKey) {
    checkNotNull(fromKey);
    checkNotNull(toKey);
    checkArgument(comparator.compare(fromKey, toKey) <= 0);
    return newView(sortedDelegate.subMap(fromKey, toKey));
  }

  ImmutableSortedMap<K, V> subMap(K fromKey, boolean fromInclusive, K toKey, boolean toInclusive) {
    checkNotNull(fromKey);
    checkNotNull(toKey);

      CertificateAdapters.certificate
        .fromDer(certificateByteString)

    assertThat(okHttpCertificate.tbsCertificate.subjectPublicKeyInfo.subjectPublicKey)
      .isEqualTo(BitString(publicKeyBytes, 0))
  }

  @Test fun `time before 2050 uses UTC_TIME`() {
    val utcTimeDer = "170d3439313233313233353935395a".decodeHex()

    val decoded = CertificateAdapters.time.fromDer(utcTimeDer)

  }

  @Override
  public NavigableMap<K, V> subMap(K fromKey, boolean fromInclusive, K toKey, boolean toInclusive) {
    return new SafeTreeMap<>(
        delegate.subMap(checkValid(fromKey), fromInclusive, checkValid(toKey), toInclusive));
  }

  @Override
  public SortedMap<K, V> subMap(K fromKey, K toKey) {
    return subMap(fromKey, true, toKey, false);
  }

  @Override

    @Override
    public SortedMap<R, Map<C, V>> subMap(R fromKey, R toKey) {
      checkNotNull(fromKey);
      checkNotNull(toKey);
      return new StandardRowSortedTable<R, C, V>(sortedBackingMap().subMap(fromKey, toKey), factory)
          .rowMap();
    }

    @Override
    public SortedMap<R, Map<C, V>> tailMap(R fromKey) {
      checkNotNull(fromKey);

      standardClear();
    }

    @Override
    public boolean isEmpty() {
      return standardIsEmpty();
    }

    @Override
    public SortedMap<K, V> subMap(K fromKey, K toKey) {
      return standardSubMap(fromKey, toKey);
    }

    @Override
    public @Nullable Entry<K, V> lowerEntry(K key) {
      return standardLowerEntry(key);
    }

    @Override

    public SortedMap<K, Collection<V>> subMap(
        @ParametricNullness K fromKey, @ParametricNullness K toKey) {
      return new SortedAsMap(sortedMap().subMap(fromKey, toKey));
    }

    @Override
    public SortedMap<K, Collection<V>> tailMap(@ParametricNullness K fromKey) {
      return new SortedAsMap(sortedMap().tailMap(fromKey));
    }

    @Nullable SortedSet<K> sortedKeySet;

    }

    @Override
    public SortedMap<K, V2> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
      return transformEntries(fromMap().subMap(fromKey, toKey), transformer);
    }

    @Override
    public SortedMap<K, V2> tailMap(@ParametricNullness K fromKey) {
      return transformEntries(fromMap().tailMap(fromKey), transformer);
    }
  }

  @GwtIncompatible // NavigableMap

    }

    @Override
    public SortedMap<K, V2> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
      return transformEntries(fromMap().subMap(fromKey, toKey), transformer);
    }

    @Override
    public SortedMap<K, V2> tailMap(@ParametricNullness K fromKey) {
      return transformEntries(fromMap().tailMap(fromKey), transformer);
    }
  }

  @GwtIncompatible // NavigableMap

  public SortedMap<K, V> subMap(@ParametricNullness K fromKey, @ParametricNullness K toKey) {
    return subMap(fromKey, true, toKey, false);
  }

  @Override
  public SortedMap<K, V> headMap(@ParametricNullness K toKey) {
    return headMap(toKey, false);
  }

  @Override
  public SortedMap<K, V> tailMap(@ParametricNullness K fromKey) {
    return tailMap(fromKey, true);
  }

  @Override

  public ImmutableSortedMap<K, V> subMap(
      K fromKey, boolean fromInclusive, K toKey, boolean toInclusive) {
    checkNotNull(fromKey);
    checkNotNull(toKey);
    checkArgument(
        comparator().compare(fromKey, toKey) <= 0,
        "expected fromKey <= toKey but %s > %s",
        fromKey,
        toKey);
    return headMap(toKey, toInclusive).tailMap(fromKey, fromInclusive);
  }

  /**