*
   * @throws IllegalArgumentException if {@code node} is not an element of this graph
   */
  @Override
  Set<N> successors(N node);

  /**
   * Returns the count of {@code node}'s incident edges, counting self-loops twice (equivalently,
   * the number of times an edge touches {@code node}).
   *
   * <p>For directed graphs, this is equal to {@code inDegree(node) + outDegree(node)}.
   *

            }
            return id;
        }
    }

    /**
     * Statistics data object that stores timestamped events and maintains reference counting.
     * Extends LinkedHashMap to store event names mapped to their timestamps.
     * Includes reference counting for multi-threaded access tracking.
     */
    public static class StatsObject extends LinkedHashMap<String, Long> {

    elements.add(null);
    collection = getSubjectGenerator().create(elements.toArray());
    assertEquals(
        "A Set's hashCode() should be the sum of those of its elements (with "
            + "a null element counting as having a hash of zero).",
        expectedHashCode,
        getSet().hashCode());
  }

  /**
   * Returns the {@link Method} instances for the test methods in this class which call {@code

    ArrayList<ListenableFuture<Integer>> lengthChecks = new ArrayList<>();
    List<Integer> completeLengthChecks;
    int baseStackDepth;
    ExecutorService service = newFixedThreadPool(5);
    try {
      // Avoid counting frames from the executor itself, or the ExecutionSequencer
      baseStackDepth =
          serializer
              .submit(
                  new Callable<Integer>() {
                    @Override

      long lastEntry = entries[srcIndex];
      entries[dstIndex] = lastEntry;
      entries[srcIndex] = UNSET;

      // also need to update whoever's "next" pointer was pointing to the last entry place
      // reusing "tableIndex" and "next"; these variables were no longer needed
      int tableIndex = getHash(lastEntry) & hashTableMask();
      int lastNext = table[tableIndex];
      if (lastNext == srcIndex) {

 * number of streams, dynamically configured with `SETTINGS_MAX_CONCURRENT_STREAMS`. A connection
 * currently carrying zero streams is an idle stream. We keep it alive because reusing an existing
 * connection is typically faster than establishing a new one.
 *
 * When a single logical call requires multiple streams due to redirects or authorization

    @Override
    int writeParameterWordsWireFormat(final byte[] dst, int dstIndex) {
        final int start = dstIndex;

        dst[dstIndex] = (byte) 0x00;
        dstIndex++;
        // name length without counting null termination
        namelen_index = dstIndex;
        dstIndex += 2;
        writeInt4(flags0, dst, dstIndex);
        dstIndex += 4;
        writeInt4(rootDirectoryFid, dst, dstIndex);
        dstIndex += 4;

 * **Exchange** carries a single HTTP request/response pair.

 * **ExchangeFinder** chooses which connection carries each exchange. Where possible it will use the same connection for all exchanges in a single call. It prefers reusing pooled connections over establishing new connections.      

#### Per-Connection Locks

            throw new UnknownHostException(name.name);
        }

        /* If a target address to query was not specified explicitly
         * with the addr parameter we fall into this resolveOrder routine.
         */

        for (final int element : resolveOrder) {
            try {
                switch (element) {
                case RESOLVER_LMHOSTS:

        public DfsStorageInfo() {
            // Default constructor
        }

        /**
         * Storage state flags
         */
        public int state;
        /**
         * Server name hosting the storage
         */
        public String server_name;
        /**
         * Share name on the server
         */
        public String share_name;

        @Override