HMACT64 hmac = new HMACT64(TEST_KEY);
            byte[] result = hmac.engineDigest();

            assertArrayEquals(finalDigest, result);
            verify(mockMd5, times(1)).digest(); // First call for inner digest
            verify(mockMd5, times(2)).update(any(byte[].class)); // Once in constructor with ipad, once in engineDigest with opad
            verify(mockMd5, times(1)).digest(innerDigest); // Second call for final digest

        assertEquals(228L, MemoryUtil.sizeOf(mixedMap));

        // Nested maps
        Map<String, Map<String, String>> nestedMap = new HashMap<>();
        nestedMap.put("outer", Maps.map("inner", "value").$());
        assertEquals(183L, MemoryUtil.sizeOf(nestedMap));
    }

    @Test
    public void test_sizeOf_customObjects() {
        // Test fallback case for custom objects (should return 16L)

 The following are generated from this model:

   * {{{./apidocs/index.html}Java sources}} with <<<Builder>>> inner classes for immutable instances creation.

                  protected Set<String> create(String[] elements) {
                    Multiset<String> inner = LinkedHashMultiset.create(asList(elements));
                    return new ForwardingMultiset<String>() {
                      @Override
                      protected Multiset<String> delegate() {
                        return inner;
                      }

                      @Override

    assertFalse(delegate.isOverridable());
    assertFalse(delegate.isVarArgs());
  }

  @SuppressWarnings("ClassCanBeStatic") // We want to test an inner class.
  private class InnerWithDefaultConstructor {
    class NestedInner {}
  }

  public void testInnerClassDefaultConstructor() {

  fun noRequestBody() {
    call.messageDone(
      exchange = this,
      requestDone = true,
      e = null,
    )
  }

  /** A request body that fires events when it completes. */
  private inner class RequestBodySink(
    delegate: Sink,
    /** The exact number of bytes to be written, or -1L if that is unknown. */
    private val contentLength: Long,
    private val isSocket: Boolean,

    private SmbComSessionSetupAndX setupAndX;

    @BeforeEach
    void setUp() throws Exception {
        MockitoAnnotations.openMocks(this);

        // Create a real ServerData instance as it's not mockable (inner class)
        SmbTransport.ServerData serverData = mockTransport.new ServerData();
        serverData.security = ServerMessageBlock.SECURITY_USER;
        serverData.encryptedPasswords = true;

    fun start()
  }

  private object TestThreadSerialTask : SerialTask {
    override fun start() = error("unexpected call")
  }

  inner class RunnableSerialTask(
    private val runnable: Runnable,
  ) : SerialTask {
    override fun start() {
      taskRunner.assertLockHeld()
      require(currentTask == this)
      activeThreads++

```

### Options

Opt | Description
--- | ---
-d \<n\> | emit values at depth n. if n < 0, all values will be emitted
-kv | output inner key value pairs as newly formed objects
-v | output depth and offset details for each value
-h | display help dialog

## Benchmarks

  ): Sink = FaultySink(super.appendingSink(file, mustExist), file)

  override fun sink(
    file: Path,
    mustCreate: Boolean,
  ): Sink = FaultySink(super.sink(file, mustCreate), file)

  inner class FaultySink(
    sink: Sink,
    private val file: Path,
  ) : ForwardingSink(sink) {
    override fun write(
      source: Buffer,
      byteCount: Long,
    ) {