responseDone = true,
      socketSinkDone = true,
      socketSourceDone = true,
      e = null,
    )
  }

  private fun trackFailure(e: IOException) {
    hasFailure = true
    codec.carrier.trackFailure(call, e)
  }

  /** If [e] is non-null, this will return a non-null value. */
  fun bodyComplete(
    bytesRead: Long = -1L,
    isSocket: Boolean,
    responseDone: Boolean = false,

  fun assertClose() {
    nextEvent() as Closed
  }

  fun assertFailure(
    message: String?,
    code: Int? = null,
  ) {
    val event = nextEvent() as Failure
    if (code != null) {
      assertThat(event.response?.code).isEqualTo(code)
    }
    if (message != null) {
      assertThat(event.message).isEqualTo(message)
    } else {
      assertThat(event.t).isNull()
    }
  }

    /**
     * Creates an artifact.
     *
     * @param request the request holding artifact creation parameters
     * @return an {@code Artifact}, never {@code null}
     * @throws IllegalArgumentException if {@code request} is null or {@code request.session} is null or invalid
     */
    @Nonnull
    Artifact create(@Nonnull ArtifactFactoryRequest request);

    @Nonnull
    default Artifact create(

    }

    @Test
    void testNullValues() {
        RequestTrace trace = new RequestTrace(null, null, null);
        assertNull(trace.context());
        assertNull(trace.parent());
        assertNull(trace.data());
    }

    @Test
    void testChainedTraces() {
        RequestTrace root = new RequestTrace("root", null, "root-data");
        RequestTrace level1 = new RequestTrace("level1", root, "level1-data");

    try {
      assertNull(
          "remove(null) should return null or throw NullPointerException", getMap().remove(null));
    } catch (NullPointerException tolerated) {
    }
    expectUnchanged();
  }

  @MapFeature.Require({SUPPORTS_REMOVE, ALLOWS_NULL_KEY_QUERIES})
  public void testRemove_nullSupportedMissing() {
    assertNull("remove(null) should return null", getMap().remove(null));
    expectUnchanged();
  }

                async = false;
                next = null;
                received = false;
                error = false;
                verifyFailed = false;
                expiration = null;
                exception = null;
                mid = 0;
                command = 0;
                digest = null;
                response = null;
            }

            @Override

        // Create Kerb5Context with mocked dependencies
        ctx = new Kerb5Context("host.example", "cifs", null, 0, 0, null);
    }

    @AfterEach
    void tearDown() {
        if (mockedStatic != null) {
            mockedStatic.close();
        }
    }

    private static void setPrivateField(Object target, String name, Object value) throws Exception {

        boolean changed = false;

        if (metadata != null && reference != null) {
            Versioning versioning = metadata.getVersioning();
            Versioning versioningRef = reference.getVersioning();
            if (versioning != null && versioningRef != null) {
                String lastUpdated = versioning.getLastUpdated();

    @Override
    public boolean isAvailable() {
        if (available != null) {
            return available;
        }
        if (generatorList != null && !generatorList.isEmpty()) {
            String path = System.getenv("PATH");
            if (path == null) {
                path = System.getenv("Path");
            }
            if (path == null) {
                path = System.getenv("path");
            }

        }
    }

    // Test property filter returning null simulation
    @Test
    public void test_get_filterReturnsNull() {
        // The filter.null property is configured to simulate null filter behavior
        try {
            fessConfig.get("filter.null");
            fail("Should throw exception when property is not found");