@CheckForNull private final transient Object keyHashTable;
  @VisibleForTesting final transient @Nullable Object[] alternatingKeysAndValues;
  private final transient int keyOffset; // 0 for K-to-V, 1 for V-to-K
  private final transient int size;
  private final transient RegularImmutableBiMap<V, K> inverse;

  /** Constructor for empty bimap. */
  @SuppressWarnings("unchecked")
  private RegularImmutableBiMap() {

            

Reported by PMD.

                @VisibleForTesting final transient @Nullable Object[] alternatingKeysAndValues;
  private final transient int keyOffset; // 0 for K-to-V, 1 for V-to-K
  private final transient int size;
  private final transient RegularImmutableBiMap<V, K> inverse;

  /** Constructor for empty bimap. */
  @SuppressWarnings("unchecked")
  private RegularImmutableBiMap() {
    this.keyHashTable = null;

            

Reported by PMD.

                /** Constructor for empty bimap. */
  @SuppressWarnings("unchecked")
  private RegularImmutableBiMap() {
    this.keyHashTable = null;
    this.alternatingKeysAndValues = new Object[0];
    this.keyOffset = 0;
    this.size = 0;
    this.inverse = (RegularImmutableBiMap<V, K>) this;
  }

            

Reported by PMD.

                }

  /** K-to-V constructor. */
  RegularImmutableBiMap(@Nullable Object[] alternatingKeysAndValues, int size) {
    this.alternatingKeysAndValues = alternatingKeysAndValues;
    this.size = size;
    this.keyOffset = 0;
    int tableSize = (size >= 2) ? ImmutableSet.chooseTableSize(size) : 0;
    this.keyHashTable =

            

Reported by PMD.

                    new RegularImmutableMultiset<>(ObjectCountHashMap.create());

  final transient ObjectCountHashMap<E> contents;
  private final transient int size;

  @LazyInit @CheckForNull private transient ImmutableSet<E> elementSet;

  RegularImmutableMultiset(ObjectCountHashMap<E> contents) {
    this.contents = contents;

            

Reported by PMD.

                final transient ObjectCountHashMap<E> contents;
  private final transient int size;

  @LazyInit @CheckForNull private transient ImmutableSet<E> elementSet;

  RegularImmutableMultiset(ObjectCountHashMap<E> contents) {
    this.contents = contents;
    long size = 0;
    for (int i = 0; i < contents.size(); i++) {

            

Reported by PMD.

              
    @Override
    public boolean contains(@CheckForNull Object object) {
      return RegularImmutableMultiset.this.contains(object);
    }

    @Override
    boolean isPartialView() {
      return true;

            

Reported by PMD.

              
    @Override
    public boolean contains(@CheckForNull Object object) {
      return RegularImmutableMultiset.this.contains(object);
    }

    @Override
    boolean isPartialView() {
      return true;

            

Reported by PMD.

               */
@GwtCompatible
@ElementTypesAreNonnullByDefault
class SingletonImmutableTable<R, C, V> extends ImmutableTable<R, C, V> {
  final R singleRowKey;
  final C singleColumnKey;
  final V singleValue;

  SingletonImmutableTable(R rowKey, C columnKey, V value) {

            

Reported by PMD.

              @GwtCompatible
@ElementTypesAreNonnullByDefault
class SingletonImmutableTable<R, C, V> extends ImmutableTable<R, C, V> {
  final R singleRowKey;
  final C singleColumnKey;
  final V singleValue;

  SingletonImmutableTable(R rowKey, C columnKey, V value) {
    this.singleRowKey = checkNotNull(rowKey);

            

Reported by PMD.

              @ElementTypesAreNonnullByDefault
class SingletonImmutableTable<R, C, V> extends ImmutableTable<R, C, V> {
  final R singleRowKey;
  final C singleColumnKey;
  final V singleValue;

  SingletonImmutableTable(R rowKey, C columnKey, V value) {
    this.singleRowKey = checkNotNull(rowKey);
    this.singleColumnKey = checkNotNull(columnKey);

            

Reported by PMD.

              class SingletonImmutableTable<R, C, V> extends ImmutableTable<R, C, V> {
  final R singleRowKey;
  final C singleColumnKey;
  final V singleValue;

  SingletonImmutableTable(R rowKey, C columnKey, V value) {
    this.singleRowKey = checkNotNull(rowKey);
    this.singleColumnKey = checkNotNull(columnKey);
    this.singleValue = checkNotNull(value);

            

Reported by PMD.

              
  @Override
  public final boolean hasPrevious() {
    return backingIterator().hasPrevious();
  }

  @Override
  @ParametricNullness
  public final T previous() {

            

Reported by PMD.

                @Override
  @ParametricNullness
  public final T previous() {
    return transform(backingIterator().previous());
  }

  @Override
  public final int nextIndex() {
    return backingIterator().nextIndex();

            

Reported by PMD.

              
  @Override
  public final int nextIndex() {
    return backingIterator().nextIndex();
  }

  @Override
  public final int previousIndex() {
    return backingIterator().previousIndex();

            

Reported by PMD.

              
  @Override
  public final int previousIndex() {
    return backingIterator().previousIndex();
  }

  @Override
  public void set(@ParametricNullness T element) {
    throw new UnsupportedOperationException();

            

Reported by PMD.

              @GwtCompatible(serializable = true, emulated = true)
@ElementTypesAreNonnullByDefault
public class TreeMultimap<K extends @Nullable Object, V extends @Nullable Object>
    extends AbstractSortedKeySortedSetMultimap<K, V> {
  private transient Comparator<? super K> keyComparator;
  private transient Comparator<? super V> valueComparator;

  /**
   * Creates an empty {@code TreeMultimap} ordered by the natural ordering of its keys and values.

            

Reported by PMD.

              @ElementTypesAreNonnullByDefault
public class TreeMultimap<K extends @Nullable Object, V extends @Nullable Object>
    extends AbstractSortedKeySortedSetMultimap<K, V> {
  private transient Comparator<? super K> keyComparator;
  private transient Comparator<? super V> valueComparator;

  /**
   * Creates an empty {@code TreeMultimap} ordered by the natural ordering of its keys and values.
   */

            

Reported by PMD.

              public class TreeMultimap<K extends @Nullable Object, V extends @Nullable Object>
    extends AbstractSortedKeySortedSetMultimap<K, V> {
  private transient Comparator<? super K> keyComparator;
  private transient Comparator<? super V> valueComparator;

  /**
   * Creates an empty {@code TreeMultimap} ordered by the natural ordering of its keys and values.
   */
  public static <K extends Comparable, V extends Comparable> TreeMultimap<K, V> create() {

            

Reported by PMD.

                @Override
  Collection<V> createCollection(@ParametricNullness K key) {
    if (key == null) {
      keyComparator().compare(key, key);
    }
    return super.createCollection(key);
  }

  /**

            

Reported by PMD.

              @ElementTypesAreNonnullByDefault
abstract class AbstractDirectedNetworkConnections<N, E> implements NetworkConnections<N, E> {
  /** Keys are edges incoming to the origin node, values are the source node. */
  final Map<E, N> inEdgeMap;

  /** Keys are edges outgoing from the origin node, values are the target node. */
  final Map<E, N> outEdgeMap;

  private int selfLoopCount;

            

Reported by PMD.

                final Map<E, N> inEdgeMap;

  /** Keys are edges outgoing from the origin node, values are the target node. */
  final Map<E, N> outEdgeMap;

  private int selfLoopCount;

  AbstractDirectedNetworkConnections(Map<E, N> inEdgeMap, Map<E, N> outEdgeMap, int selfLoopCount) {
    this.inEdgeMap = checkNotNull(inEdgeMap);

            

Reported by PMD.

                /** Keys are edges outgoing from the origin node, values are the target node. */
  final Map<E, N> outEdgeMap;

  private int selfLoopCount;

  AbstractDirectedNetworkConnections(Map<E, N> inEdgeMap, Map<E, N> outEdgeMap, int selfLoopCount) {
    this.inEdgeMap = checkNotNull(inEdgeMap);
    this.outEdgeMap = checkNotNull(outEdgeMap);
    this.selfLoopCount = checkNonNegative(selfLoopCount);

            

Reported by PMD.

                          (selfLoopCount == 0)
                ? Iterables.concat(inEdgeMap.keySet(), outEdgeMap.keySet())
                : Sets.union(inEdgeMap.keySet(), outEdgeMap.keySet());
        return Iterators.unmodifiableIterator(incidentEdges.iterator());
      }

      @Override
      public int size() {
        return IntMath.saturatedAdd(inEdgeMap.size(), outEdgeMap.size() - selfLoopCount);

            

Reported by PMD.

               * @param <E> Edge parameter type
 */
@ElementTypesAreNonnullByDefault
final class DirectedMultiNetworkConnections<N, E> extends AbstractDirectedNetworkConnections<N, E> {

  private DirectedMultiNetworkConnections(
      Map<E, N> inEdges, Map<E, N> outEdges, int selfLoopCount) {
    super(inEdges, outEdges, selfLoopCount);
  }

            

Reported by PMD.

              
  @Override
  public Set<N> predecessors() {
    return Collections.unmodifiableSet(predecessorsMultiset().elementSet());
  }

  private Multiset<N> predecessorsMultiset() {
    Multiset<N> predecessors = getReference(predecessorsReference);
    if (predecessors == null) {

            

Reported by PMD.

              
  @Override
  public Set<N> successors() {
    return Collections.unmodifiableSet(successorsMultiset().elementSet());
  }

  private Multiset<N> successorsMultiset() {
    Multiset<N> successors = getReference(successorsReference);
    if (successors == null) {

            

Reported by PMD.

                  return new MultiEdgesConnecting<E>(outEdgeMap, node) {
      @Override
      public int size() {
        return successorsMultiset().count(node);
      }
    };
  }

  @Override

            

Reported by PMD.

              @ElementTypesAreNonnullByDefault
public class ImmutableGraph<N> extends ForwardingGraph<N> {
  @SuppressWarnings("Immutable") // The backing graph must be immutable.
  private final BaseGraph<N> backingGraph;

  ImmutableGraph(BaseGraph<N> backingGraph) {
    this.backingGraph = backingGraph;
  }


            

Reported by PMD.

                      ? (ImmutableGraph<N>) graph
        : new ImmutableGraph<N>(
            new StandardValueGraph<N, Presence>(
                GraphBuilder.from(graph), getNodeConnections(graph), graph.edges().size()));
  }

  /**
   * Simply returns its argument.
   *

            

Reported by PMD.

                  for (N node : graph.nodes()) {
      nodeConnections.put(node, connectionsOf(graph, node));
    }
    return nodeConnections.build();
  }

  @SuppressWarnings("unchecked")
  private static <N> GraphConnections<N, Presence> connectionsOf(Graph<N> graph, N node) {
    Function<N, Presence> edgeValueFn =

            

Reported by PMD.

                 */
  public static class Builder<N> {

    private final MutableGraph<N> mutableGraph;

    Builder(GraphBuilder<N> graphBuilder) {
      // The incidentEdgeOrder for immutable graphs is always stable. However, we don't want to
      // modify this builder, so we make a copy instead.
      this.mutableGraph = graphBuilder.copy().incidentEdgeOrder(ElementOrder.<N>stable()).build();

            

Reported by PMD.

                  for (N node : graph.nodes()) {
      nodeConnections.put(node, connectionsOf(graph, node));
    }
    return nodeConnections.build();
  }

  private static <N, V> GraphConnections<N, V> connectionsOf(
      final ValueGraph<N, V> graph, final N node) {
    Function<N, V> successorNodeToValueFn =

            

Reported by PMD.

                 */
  public static class Builder<N, V> {

    private final MutableValueGraph<N, V> mutableValueGraph;

    Builder(ValueGraphBuilder<N, V> graphBuilder) {
      // The incidentEdgeOrder for immutable graphs is always stable. However, we don't want to
      // modify this builder, so we make a copy instead.
      this.mutableValueGraph =

            

Reported by PMD.

              
  private static <N, V> GraphConnections<N, V> connectionsOf(
      final ValueGraph<N, V> graph, final N node) {
    Function<N, V> successorNodeToValueFn =
        new Function<N, V>() {
          @Override
          public V apply(N successorNode) {
            // requireNonNull is safe because the endpoint pair comes from the graph.
            return requireNonNull(graph.edgeValueOrDefault(node, successorNode, null));

            

Reported by PMD.

              
  private static <N, V> GraphConnections<N, V> connectionsOf(
      final ValueGraph<N, V> graph, final N node) {
    Function<N, V> successorNodeToValueFn =
        new Function<N, V>() {
          @Override
          public V apply(N successorNode) {
            // requireNonNull is safe because the endpoint pair comes from the graph.
            return requireNonNull(graph.edgeValueOrDefault(node, successorNode, null));

            

Reported by PMD.

                static double bigToDouble(BigInteger x) {
    // This is an extremely fast implementation of BigInteger.doubleValue(). JDK patch pending.
    BigInteger absX = x.abs();
    int exponent = absX.bitLength() - 1;
    // exponent == floor(log2(abs(x)))
    if (exponent < Long.SIZE - 1) {
      return x.longValue();
    } else if (exponent > MAX_EXPONENT) {
      return x.signum() * POSITIVE_INFINITY;

            

Reported by PMD.

                   * It helps to consider the real number signif = absX * 2^(SIGNIFICAND_BITS - exponent).
     */
    int shift = exponent - SIGNIFICAND_BITS - 1;
    long twiceSignifFloor = absX.shiftRight(shift).longValue();
    long signifFloor = twiceSignifFloor >> 1;
    signifFloor &= SIGNIFICAND_MASK; // remove the implied bit

    /*
     * We round up if either the fractional part of signif is strictly greater than 0.5 (which is

            

Reported by PMD.

                   * It helps to consider the real number signif = absX * 2^(SIGNIFICAND_BITS - exponent).
     */
    int shift = exponent - SIGNIFICAND_BITS - 1;
    long twiceSignifFloor = absX.shiftRight(shift).longValue();
    long signifFloor = twiceSignifFloor >> 1;
    signifFloor &= SIGNIFICAND_MASK; // remove the implied bit

    /*
     * We round up if either the fractional part of signif is strictly greater than 0.5 (which is

            

Reported by PMD.

                   * >= 0.5 and signifFloor is odd (which is true if both the 0.5 bit and the 1 bit are set).
     */
    boolean increment =
        (twiceSignifFloor & 1) != 0 && ((signifFloor & 1) != 0 || absX.getLowestSetBit() < shift);
    long signifRounded = increment ? signifFloor + 1 : signifFloor;
    long bits = (long) (exponent + EXPONENT_BIAS) << SIGNIFICAND_BITS;
    bits += signifRounded;
    /*
     * If signifRounded == 2^53, we'd need to set all of the significand bits to zero and add 1 to

            

Reported by PMD.