* @return this job instance for method chaining
     */
    public GenerateThumbnailJob numOfThreads(final int numOfThreads) {
        this.numOfThreads = numOfThreads;
        return this;
    }

    /**
     * Enables cleanup operations for this job.
     *
     * @return this job instance for method chaining
     */
    public GenerateThumbnailJob cleanup() {
        cleanup = true;

    }

    @Test
    @DisplayName("Test NotifyResponse chaining with multiple responses")
    void testNotifyResponseChaining() {
        MockNotifyResponse response1 = new MockNotifyResponse(Collections.singletonList(mockNotifyInfo1));
        MockNotifyResponse response2 = new MockNotifyResponse(Collections.singletonList(mockNotifyInfo2));

        // Setup chaining
        response1.setNextResponse(response2);

    }

    /**
     * Sets the expiration time for thumbnails.
     *
     * @param expiry the expiration time in milliseconds (must be positive)
     * @return this PurgeThumbnailJob instance for method chaining
     */
    public PurgeThumbnailJob expiry(final long expiry) {
        if (expiry > 0) {
            this.expiry = expiry;
        }
        return this;
    }

    }

    /**
     * Sets the query builder for filtering documents.
     *
     * @param queryBuilder the query builder to filter documents
     * @return this UpdateLabelJob instance for method chaining
     */
    public UpdateLabelJob query(final QueryBuilder queryBuilder) {
        this.queryBuilder = queryBuilder;
        return this;
    }

     * @param pluginExecutionId The id of a plugin execution whose configuration should be used, may be {@code null} or
     *            empty to use the general plugin configuration.
     * @return This request for chaining, never {@code null}.
     */
    public DefaultBeanConfigurationRequest setConfiguration(
            Model model, String pluginGroupId, String pluginArtifactId, String pluginExecutionId) {

     * @return this exception for chaining
     */
    public SmbOperationException withContext(String key, Object value) {
        this.context.put(key, value);
        return this;
    }

    /**
     * Add multiple context values
     *
     * @param contextMap the context map to add
     * @return this exception for chaining
     */

            fail("Should have caught as FessSystemException");
        }
    }

    @Test
    public void test_exceptionChaining() {
        // Test that the exception can be used in exception chaining
        String username = "testuser";
        FessUserNotFoundException originalException = new FessUserNotFoundException(username);

        try {

        // Stack trace should be empty
        assertEquals(0, exception.getStackTrace().length);
    }

    @Test
    public void test_exceptionChaining() {
        // Test exception chaining with multiple levels
        Exception rootCause = new Exception("Root cause");
        RuntimeException middleCause = new RuntimeException("Middle cause", rootCause);

        assertEquals(innerMessage, exception.getCause().getMessage());
    }

    @Test
    public void test_multiLevelExceptionChaining() {
        // Test multi-level exception chaining
        Exception level1 = new Exception("Level 1");
        RuntimeException level2 = new RuntimeException("Level 2", level1);
        StorageException level3 = new StorageException("Level 3", level2);

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    @Test
    public void test_exceptionChaining() {
        // Test exception chaining
        Throwable rootCause = new IllegalArgumentException("Invalid argument");
        Throwable intermediateCause = new RuntimeException("Processing failed", rootCause);
        String message = "Plugin operation failed";