* know that V is a non-null type because that's the only kind of value type that
                 * StandardTable supports. Thus, requireNonNull is safe as long as the cell is still
                 * present. (And if it's not present, behavior is undefined.) However, that's a
                 * behavior change relative to the old code, so it didn't seem worth risking.)
                 */

        ComponentUtil.register(virtualHostHelper, "virtualHostHelper");

        // Also set up FessConfig if needed
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public Tuple3<String, String, String>[] getVirtualHosts() {
                Tuple3<String, String, String>[] result = new Tuple3[paths.length];

  // TODO(user): predecessors and successors should be collocated (reducing cache misses).
  // Might also explore collocating all of [hash, next, predecessor, successor] fields of an
  // entry in a *single* long[], though that reduces the maximum size of the set by a factor of 2

  /**
   * Pointer to the predecessor of an entry in insertion order. ENDPOINT indicates a node is the

  // TODO(user): predecessors and successors should be collocated (reducing cache misses).
  // Might also explore collocating all of [hash, next, predecessor, successor] fields of an
  // entry in a *single* long[], though that reduces the maximum size of the set by a factor of 2

  /**
   * Pointer to the predecessor of an entry in insertion order. ENDPOINT indicates a node is the

      this.forward = forward;
    }

    Object readResolve() {
      return forward.inverse();
    }

    @GwtIncompatible @J2ktIncompatible private static final long serialVersionUID = 1;
  }

  // redeclare to help optimizers with b/310253115
  @SuppressWarnings("RedundantOverride")
  @Override
  @J2ktIncompatible
  @GwtIncompatible
    Object writeReplace() {

    public void testPerformance() throws Exception {
        int num = 100000;
        Map<String, Object> hmap = new HashMap<String, Object>();
        Map<String, Object> amap = new ArrayMap<String, Object>();

        long start = System.currentTimeMillis();
        for (int i = 0; i < num; i++) {
            hmap.put(String.valueOf(i), null);
        }
        System.out.println("HashMap.put:" + (System.currentTimeMillis() - start));

    }

    /**
     * Sanitize path for safe logging
     */
    private String sanitizeForLog(String path) {
        if (path == null) {
            return "null";
        }

        // Truncate long paths
        if (path.length() > 100) {
            path = path.substring(0, 100) + "...";
        }

        // Remove control characters for safe logging
        return path.replaceAll("[\\x00-\\x1F\\x7F]", "?");

    protected void setUp(TestInfo testInfo) throws Exception {
        super.setUp(testInfo);
        // Set up FessConfig mock
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            @Override
            public String getIndexFieldUrl() {
                return "url";
            }

            @Override
            public String getIndexFieldTitle() {

   * approximate size of HTTP/2 headers before they are compressed with HPACK. This value is
   * intended to be used as a metric: smaller headers are more efficient to encode and transmit.
   */
  fun byteCount(): Long {
    // Each header name has 2 bytes of overhead for ': ' and every header value has 2 bytes of
    // overhead for '\r\n'.
    var result = (namesAndValues.size * 2).toLong()

For example, imagine you have code that uses a database session in a dependency with `yield` only to verify a user, but the database session is never used again in the *path operation function*, only in the dependency, **and** the response takes a long time to be sent, like a `StreamingResponse` that sends data slowly, but for some reason doesn't use the database.