// No virtual hosts configured
        setupVirtualHostHelper();

        Boolean result = invokeIsValidVirtualHostPath("/anypath");
        assertFalse("Any non-empty/non-root path should be blocked when no virtual hosts configured", result);
    }

    @Test
    public void test_isValidVirtualHostPath_caseInsensitive() throws Exception {

        }
    }

    // Test getScriptEngine with non-existent name
    @Test
    public void test_getScriptEngine_nonExistentName() {
        try {
            scriptEngineFactory.getScriptEngine("nonexistent");
            fail("Should throw ScriptEngineException for non-existent engine");
        } catch (ScriptEngineException e) {

         * Interrupted exceptions are caught and logged at debug level.
         */
        public void awaitTermination() {
            try {
                join();
            } catch (final InterruptedException e) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Interrupted.", e);
                }
            }
        }

            assertNotNull(Boolean.valueOf(result), "isValid should return a boolean result");
        } catch (final NullPointerException e) {
            // This is expected if the implementation requires a non-null context
            assertTrue(true, "NPE is acceptable for null context in this implementation");
        }
    }

    private CustomSize createBasicAnnotation() {
        return new CustomSize() {

            manager.destroy();
        } finally {
            System.clearProperty(Constants.FESS_VAR_PATH);
        }
    }

    // Test initialization with non-existent directory
    @Test
    public void test_init_nonExistentDirectory() {
        ThumbnailManager manager = new ThumbnailManager() {
            @Override
            public void init() {

        assertTrue(corsHandlerFactory.wasGetCalled());
        assertEquals("http://example.com", corsHandlerFactory.getLastOrigin());
    }

    // Test with valid Origin and CorsHandler found (non-OPTIONS request)
    @Test
    public void test_doFilter_withCorsHandler_nonOptions() throws IOException, ServletException {
        String origin = "http://example.com";
        mockRequest.setHeader("Origin", origin);

      subsequently incorporated within the Work.

   2. Grant of Copyright License. Subject to the terms and conditions of
      this License, each Contributor hereby grants to You a perpetual,
      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
      copyright license to reproduce, prepare Derivative Works of,
      publicly display, publicly perform, sublicense, and distribute the

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            final float boost, final String field, final String[] texts) {
        final String text = String.join(" ", texts);

        if (Constants.DEFAULT_FIELD.equals(field)) {
            context.addFieldLog(field, text);
            stream(texts).of(stream -> stream.forEach(t -> context.addHighlightedQuery(t)));

        return null;
    }

    /**
     * Encodes a URL by encoding non-URL-safe characters.
     * Uses the request's character encoding if available, otherwise defaults to UTF-8.
     * Only encodes characters that are not considered URL-safe according to CharUtil.
     *
     * @param url the URL to encode
     * @return the encoded URL with non-URL-safe characters properly encoded
     */