Iterator<Integer> iter =
        new AbstractIterator<Integer>() {
          boolean haveBeenCalled;

          @Override
          public Integer computeNext() {
            if (haveBeenCalled) {
              throw new AssertionError("Should not have been called again");
            } else {
              haveBeenCalled = true;
              throw sneakyThrow(new SomeCheckedException());
            }

    Iterator<Integer> iter =
        new AbstractIterator<Integer>() {
          boolean haveBeenCalled;

          @Override
          public Integer computeNext() {
            if (haveBeenCalled) {
              throw new AssertionError("Should not have been called again");
            } else {
              haveBeenCalled = true;
              throw sneakyThrow(new SomeCheckedException());
            }

    }

    /**
     * Tests the writeSetupWireFormat method.
     */
    @Test
    void testWriteSetupWireFormat() {
        // Given
        Trans2QueryPathInformation trans = new Trans2QueryPathInformation("test.txt", 0x0101);
        byte[] dst = new byte[2];

        // When
        int bytesWritten = trans.writeSetupWireFormat(dst, 0);

        // Then
        assertEquals(2, bytesWritten, "Should write 2 bytes.");

     */
    @Test
    void testConstructorWithMessageAndCause() {
        String message = "Test message with cause.";
        Throwable cause = new RuntimeException("Original cause.");
        DcerpcException exception = new DcerpcException(message, cause);

        assertEquals(0, exception.getErrorCode(), "Error code should be 0 for message and cause constructor.");

    @BeforeEach
    void setUp() {
        handler = new Handler();
    }

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create handler with default constructor")
        void testDefaultConstructor() {
            // When
            Handler testHandler = new Handler();

            // Then
            assertNotNull(testHandler);

  static <T> IdentityLoader<T> identityLoader() {
    return new IdentityLoader<T>();
  }

  /**
   * Returns a {@code new Object()} for every request, and increments a counter for every request.
   * The count is accessible via {@link #getCount}.
   */
  static class CountingLoader extends CacheLoader<Object, Object> {
    private final AtomicInteger count = new AtomicInteger();

    @Override

    TestService service = new TestService();
    assertEquals(0, service.startUpCalled);
    service.startAsync().awaitRunning();
    assertEquals(1, service.startUpCalled);
    assertEquals(Service.State.RUNNING, service.state());
    assertThat(service.transitionStates).containsExactly(Service.State.STARTING);
  }

  public void testStart_failed() {
    Exception exception = new Exception("deliberate");

        final List<File> fileList = new ArrayList<>(
                FileUtils.listFiles(new File(baseDir, "images"), fessConfig.getSupportedUploadedMediaExtentionsAsArray(), true));
        fileList.addAll(FileUtils.listFiles(new File(baseDir, "css"), fessConfig.getSupportedUploadedCssExtentionsAsArray(), true));

    Object one = new Object();
    cache.getUnchecked(one);
    assertThat(cache.stats()).isEqualTo(EMPTY_STATS);

    cache.getUnchecked(one);
    assertThat(cache.stats()).isEqualTo(EMPTY_STATS);

    Object two = new Object();
    cache.getUnchecked(two);
    assertThat(cache.stats()).isEqualTo(EMPTY_STATS);

    Object three = new Object();
    cache.getUnchecked(three);

    Object one = new Object();
    cache.getUnchecked(one);
    assertThat(cache.stats()).isEqualTo(EMPTY_STATS);

    cache.getUnchecked(one);
    assertThat(cache.stats()).isEqualTo(EMPTY_STATS);

    Object two = new Object();
    cache.getUnchecked(two);
    assertThat(cache.stats()).isEqualTo(EMPTY_STATS);

    Object three = new Object();
    cache.getUnchecked(three);