}
      checkArgument(!containsValue(value), "value already present: %s", value);
      V oldValue = delegate.setValue(value);
      checkState(Objects.equals(value, get(getKey())), "entry no longer in map");
      updateInverseMap(getKey(), true, oldValue, value);
      return oldValue;
    }
  }

  Iterator<Entry<K, V>> entrySetIterator() {
    Iterator<Entry<K, V>> iterator = delegate.entrySet().iterator();

    assertThat(map.containsKey(refreshKey)).isFalse();

    // let computation complete
    letGetFinishSignal.countDown();
    getFinishedSignal.await();
    checkNothingLogged();

    // results should be visible
    assertThat(cache.size()).isEqualTo(2);
    assertThat(map.get(getKey)).isEqualTo(getKey + suffix);
    assertThat(map.get(refreshKey)).isEqualTo(refreshKey + suffix);

    assertThat(entry.getKey()).isEqualTo("Hello");
    assertThat(entry.getValue()).isEqualTo("World");
    assertTrue(iter.hasNext());

    entry = iter.next();
    assertThat(entry.getKey()).isEqualTo("first");
    assertThat(entry.getValue()).isEqualTo("second");
    assertTrue(iter.hasNext());

    entry = iter.next();
    assertThat(entry.getKey()).isEqualTo("polygene");

                          return next.getValue();
                        }

                        @Override
                        public String getKey() {
                          return next.getKey();
                        }

                        @Override
                        public boolean equals(@Nullable Object obj) {
                          return next.equals(obj);

    /**
     * Adds an entry to the built multimap.
     *
     * @since 11.0
     */
    @CanIgnoreReturnValue
    public Builder<K, V> put(Entry<? extends K, ? extends V> entry) {
      return put(entry.getKey(), entry.getValue());
    }

    /**
     * Adds entries to the built multimap.
     *
     * @since 19.0
     */
    @CanIgnoreReturnValue

    if (entry == null) {
      throw new NoSuchElementException();
    } else {
      return entry.getKey();
    }
  }

  @Override
  @ParametricNullness
  public K lastKey() {
    Entry<K, V> entry = lastEntry();
    if (entry == null) {
      throw new NoSuchElementException();
    } else {
      return entry.getKey();
    }
  }

  @Override
  public @Nullable Entry<K, V> lowerEntry(@ParametricNullness K key) {

                        .forEach(e -> logger.debug("Property: {}={}", e.getKey(),
                                SystemUtil.maskSensitiveValue(String.valueOf(e.getKey()), String.valueOf(e.getValue()))));
                System.getenv()
                        .entrySet()
                        .forEach(e -> logger.debug("Env: {}={}", e.getKey(), SystemUtil.maskSensitiveValue(e.getKey(), e.getValue())));

          RangeMap<Integer, Integer> expected = TreeRangeMap.create();
          for (Entry<Range<Integer>, Integer> entry : rangeMap.asMapOfRanges().entrySet()) {
            if (entry.getKey().isConnected(subRange)) {
              expected.put(entry.getKey().intersection(subRange), entry.getValue());
            }
          }
          RangeMap<Integer, Integer> subRangeMap = rangeMap.subRangeMap(subRange);

    Entry<String, Collection<Integer>> entry = iterator.next();
    assertThat(entry.getKey()).isNull();
    assertThat(entry.getValue()).containsExactly(7, 3, 1);
    entry = iterator.next();
    assertThat(entry.getKey()).isEqualTo("tree");
    assertThat(entry.getValue()).containsExactly(null, 0);
    entry = iterator.next();
    assertThat(entry.getKey()).isEqualTo("google");
    assertThat(entry.getValue()).containsExactly(6, 2);
  }

      for (Object element : elements) {
        @SuppressWarnings("unchecked")
        Entry<String, Integer> entry = (Entry<String, Integer>) element;
        multimap.put(entry.getKey(), entry.getValue());
      }
      return multimap.entries();
    }

    abstract Multimap<String, Integer> createMultimap();

    @Override
    @SuppressWarnings("unchecked")