itemList.add(createItem(entry.getKey(), entry.getValue()));
        }
        return itemList;
    }

    public static List<Map<String, String>> getPropItems() {
        final List<Map<String, String>> itemList = new ArrayList<>();
        for (final Map.Entry<Object, Object> entry : System.getProperties().entrySet()) {

    for (Entry<R, Map<C, V>> row : rows.entrySet()) {
      rowBuilder.put(row.getKey(), ImmutableMap.copyOf(row.getValue()));
    }
    this.rowMap = rowBuilder.buildOrThrow();

    ImmutableMap.Builder<C, ImmutableMap<R, V>> columnBuilder =
        new ImmutableMap.Builder<>(columns.size());
    for (Entry<C, Map<R, V>> col : columns.entrySet()) {

    assertEquals(2, keys.count(k0()));
    assertEquals(1, keys.count(k1()));
    assertEquals(3, keys.size());
    assertContainsAllOf(keys, k0(), k1());
    assertContainsAllOf(
        keys.entrySet(), Multisets.immutableEntry(k0(), 2), Multisets.immutableEntry(k1(), 1));
  }

  @MapFeature.Require(ALLOWS_NULL_KEY_QUERIES)
  public void testKeysCountAbsentNullKey() {
    assertEquals(0, multimap().keys().count(null));

          if (oldCount <= occurrences) {
            itr.remove();
          }
        }
      }
      return oldCount;
    }

    @Override
    public Set<Multiset.Entry<K>> entrySet() {
      return new Multisets.EntrySet<K>() {

        @Override
        Multiset<K> multiset() {
          return Keys.this;
        }

        @Override
        public Iterator<Multiset.Entry<K>> iterator() {

    }

    @Override
    public Collection<Object> values() {
        return attributes.values();
    }

    @Override
    public Set<Entry<String, Object>> entrySet() {
        return attributes.entrySet();
    }

    @Override
    public boolean equals(Object o) {
        return attributes.equals(o);
    }

    @Override
    public int hashCode() {

        this.properties = properties;
    }

    @Override
    public Set<Entry<String, String>> entrySet() {
        return new AbstractSet<Entry<String, String>>() {
            @Override
            public Iterator<Entry<String, String>> iterator() {
                Iterator<Entry<Object, Object>> iterator = properties.entrySet().iterator();
                return new Iterator<Entry<String, String>>() {

            iterator.remove();
          }
        }
      }
      return changed;
    }

    @Override
    Set<Entry<R, V>> createEntrySet() {
      return new EntrySet();
    }

    @WeakOuter
    private class EntrySet extends ImprovedAbstractSet<Entry<R, V>> {
      @Override
      public Iterator<Entry<R, V>> iterator() {
        return new EntrySetIterator();
      }

      @Override

  public void testAsMapEntrySetReflectsPutSameKey() {
    resetContainer(Helpers.mapEntry(k0(), v0()), Helpers.mapEntry(k0(), v3()));

    Set<Entry<K, Collection<V>>> asMapEntrySet = multimap().asMap().entrySet();
    Collection<V> valueCollection = Iterables.getOnlyElement(asMapEntrySet).getValue();
    assertContentsAnyOrder(valueCollection, v0(), v3());
    assertTrue(multimap().put(k0(), v4()));

    }

    @Override
    public boolean containsValue(Object value) {
        return delegate.get().containsValue(value);
    }

    @Override
    public Set<Entry<K, V>> entrySet() {
        return new EntrySet();
    }

    @Override
    @Nullable
    public V put(K key, V value) {
        V oldValue = get(key);
        delegate.put(key, value);
        return oldValue;
    }

                estimatedExperimentDurations.entrySet().stream()
                    .collect(Collectors.groupingBy(
                        it -> it.getKey().getPerformanceExperiment().getScenario(),
                        LinkedHashMap::new,
                        Collectors.toList())
                    );
            List<PerformanceScenarioDurations> json = performanceScenarioMap.entrySet().stream()
                .map(entry -> {