static <K extends @Nullable Object, V extends @Nullable Object> void writeMap(
      Map<K, V> map, ObjectOutputStream stream) throws IOException {
    stream.writeInt(map.size());
    for (Map.Entry<K, V> entry : map.entrySet()) {
      stream.writeObject(entry.getKey());
      stream.writeObject(entry.getValue());
    }
  }

  /**
   * Populates a map by reading an input stream, as part of deserialization. See {@link #writeMap}

     * @param callback The function to resolve variable values not found in the map.
     * @param defaultsToEmpty If true, unresolved placeholders are replaced with empty strings. If false, they are left unchanged.
     */
    default void interpolate(
            @Nonnull Map<String, String> map, @Nullable UnaryOperator<String> callback, boolean defaultsToEmpty) {

    assertTrue(descendingMap instanceof SynchronizedNavigableMap);
    assertThat(((SynchronizedNavigableMap<String, Integer>) descendingMap).mutex)
        .isSameInstanceAs(mutex);
  }

  public void testFirstEntry() {
    assertThat(create().firstEntry()).isNull();
  }

  public void testFirstKey() {
    NavigableMap<String, Integer> map = create();
    map.put("a", 1);

        // Check information level (first 2 bytes)
        int actualInfoLevel = SMBUtil.readInt2(buffer, 0);
        assertEquals(0x0101, actualInfoLevel); // FILE_BASIC_INFO maps to 0x0101

        // Check reserved bytes (4 bytes of 0x00)
        assertEquals(0x00, buffer[2]);
        assertEquals(0x00, buffer[3]);
        assertEquals(0x00, buffer[4]);
        assertEquals(0x00, buffer[5]);

   * display. This includes two values for each extreme.
   *
   * <p>This method (dangerously) assume that the strings {@code "!! a"} and {@code "~~ z"} will
   * work for this purpose, which may cause problems for navigable maps with non-string or unicode
   * generators.
   */
  private static List<String> getExtremeValues() {
    List<String> result = new ArrayList<>();
    result.add("!! a");
    result.add("!! b");

	// of buckets is not known until the request is made. So we keep a separate
	// map for bucket metrics and handle them specially.

	// Add the serverName and poolIndex labels to all non-cluster metrics.
	//
	// Also create metric group maps and set the cache.
	metricsCache := newMetricsCache()
	mgMap := make(map[collectorPath]*MetricsGroup)
	bucketMGMap := make(map[collectorPath]*MetricsGroup)
	for _, mg := range allMetricGroups {

  }

  /**
   * Constructs a graph with the properties specified in {@code builder}, initialized with the given
   * node and edge maps.
   */
  StandardNetwork(
      NetworkBuilder<? super N, ? super E> builder,
      Map<N, NetworkConnections<N, E>> nodeConnections,
      Map<E, N> edgeToReferenceNode) {
    this.isDirected = builder.directed;
    this.allowsParallelEdges = builder.allowsParallelEdges;

  }

  @LazyInit private transient @Nullable Map<R, Map<C, V>> rowMap;

  @Override
  public Map<R, Map<C, V>> rowMap() {
    Map<R, Map<C, V>> result = rowMap;
    return (result == null) ? rowMap = createRowMap() : result;
  }

  Map<R, Map<C, V>> createRowMap() {
    return new RowMap();
  }

  @WeakOuter
  class RowMap extends ViewCachingAbstractMap<R, Map<C, V>> {
    @Override

to know the URI that is to be used with its given parameters. That URI in turn must map internally to a method in a given component which belongs to a plugin. This mapping should actually be more generalized and it shouldn’t matter internally whether this maps to the core application or extension of the application in the form of plugins.

In the short term we are working with the model where the URI maps to a resource, and the resource itself is a Plexus component which can itself have...

    // to replace a bunch of one-off binary searches
    private static final Map<Integer, String> errorCodeMessages;
    private static final Map<Integer, String> winErrorCodeMessages;
    private static final Map<Integer, Integer> dosErrorCodeStatuses;

    static {
        final Map<Integer, String> errorCodeMessagesTmp = new HashMap<>();
        for (int i = 0; i < NT_STATUS_CODES.length; i++) {